TY - GEN ED - Rockland, Ulrike T1 - Jahresbericht 2011 T1 - Annual report 2011 T3 - BAM Reports/Jahresberichte - 2011 PY - 2012 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:b43-4529 SN - 0934-9456 N1 - Volltext (PDF) in deutsch und englisch - Full text (PDF) in German and English VL - 2011 SP - 1 EP - 130 PB - Bundesanstalt für Materialforschung und -prüfung (BAM) CY - Berlin AN - OPUS4-452 LA - mul AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - THES A1 - Weißhaupt, Petra T1 - Nitrogen uptake of saprotrophic basidiomycetes and bacteria N2 - Saprotrophe Basidiomyceten können unter aeroben Bedingungen Holz abbauen und wirtschaftliche Schäden verursachen. Die Stickstoffverfügbarkeit ist für diesen Abbau entscheidend, und diazotrophe Bakterien können durch Fixierung von atmosphärischem N2 Stickstoff auf Holz anreichern. Der gemeinsame Abbau durch Basidiomyceten und Diazotrophe könnte zu hohen Abbauraten führen, da N2-Fixierung große Mengen an ATP benötigt, welche durch Celluloseabbau regeneriert werden. In dieser Arbeit wurde diese Interaktion durch Messungen des Stickstoffanteils sowie der δ15N-Werte in der Biomasse untersucht. Außerdem wurde die Aktivität der Basidiomyceten unter Einfluss unterschiedlicher Stickstoffquellen bestimmt. Die Messungen des Stickstoffanteils in der Biomasse der Basidiomyceten Oligoporus placenta und Trametes versicolor bewiesen die Aufnahme organischen Stickstoffs, sogar wenn nur Spuren verfügbar waren. Darüber hinaus förderten Harnstoff und Ammoniumchlorid das Wachstum von T. versicolor. In Experimenten unter einer 15N2/O2-Atmosphäre wurde ermittelt, dass die diazotrophen Bakterien Azotobacter croococcum, Beijerinckia acida und Novosphingobium nitrogenifigens etwa 1– 13% ihres Stickstoffbedarfs durch N2-Fixierung decken. Wurden Diazotrophe und Basidiomyceten gemeinsam kultiviert,konnte nur von B. acida N2 fixiert und an beide Basidiomyceten übertragen werden. A. croococcum und N. nitrogenifigens wiesen keine Aktivität auf. Die Effekte der drei Stickstoffquellen, organischer Stickstoff im Medium, organischer Stickstoff in Splintholz sowie N2 aus der Luft, auf die Biomasse der Basidiomyceten wurden in Experimenten nach einem statistischen Versuchsplan bestimmt. Organischer Stickstoff als Medienbestandteil förderte das Wachstum beider Basidiomyceten signifikant. In zwei weiteren Versuchsreihen wurde die Stickstoffquelle im Medium durch das Bakterium B. acida ersetzt. Luftstickstoff begünstigte das Bakterienwachstum, so dass die Biomassen der Basidiomyceten gegenüber N2-freien Bedingungen verringert wurden. Das Vorhandensein von B. acida hatte einen geringfügig fördernden Effekt auf die Biomasse von T. versicolor aber keinen Effekt auf die Biomasse von O. placenta. Im Gegensatz zu den zuvor genannten Organismen kommen Hypholoma fasciculare und einige, teils isolierte und charakterisierte Proteobakterien gemeinsam in der Natur vor. Das Wachstum der Biomasse von H. fasciculare und von Proteobakterien wurde durch organischen Stickstoff, Harnstoff und Ammoniumchlorid gefördert. Die N2-Fixierung der Proteobakterien war zwar signifikant jedoch geringfügig, so dass sie mit Adsorption an Stelle von Nitrogenaseaktivität interpretiert wurde. Die Konkurrenz von H. fasciculare und Proteobakterien um die gleichen Stickstoffquellen wurde als wahrscheinlicher betrachtet als die Stickstoffanreicherung durch Diazotrophie. N2 - Saprotrophic basidiomycetes decompose wood in aerobic environments and can cause economic damage. The availability of nitrogen is determining for decomposition, and diazotrophic bacteria might enhance the nitrogen availability by fixation of atmospheric N2. Simultaneous decomposition by basidiomycetes and diazotrophs may intensify decomposition, because N2 fixation requires ATP, which could be provided during cellulose decomposition. In this study, the interaction was analysed by measurements of the nitrogen content and the δ15N values in biomass. Besides, the activity of basidiomycetes, influenced by different nitrogen sources, was determined. The analysis of the nitrogen content in biomass of Oligoporus placenta and Trametes versicolor proved the efficient uptake of organic nitrogen by wood-decomposing fungi even if only traces were available. In the presence of urea and ammonium chloride, the growth of T. versicolor was intensified. At cultivations in a 15N2/O2 atmosphere, the diazotrophic bacteria Azotobacter croococcum, Beijerinckia acida and Novosphingobium nitrogenifigens covered 1 to 13% of the nitrogen in their biomass by N2 fixation. If basidiomycetes and diazotrophs were co-cultivated, only B. acida fixed N2 and transferred it to both fungi. A. croococcum and N. nitrogenifigens did not coexist with the fungi. The effects of the nitrogen sources, i.e., organic nitrogen in the medium, organic nitrogen in sapwood and N2 from air, on the biomass of the mentioned basidiomycetes were determined in experiments according to full-factorial experimental plans. Organic nitrogen in the medium increased the growth of both basidiomycetes significantly. In additional experiments, the nitrogen source in the medium was replaced by an inoculum of B. acida. Then, atmospheric N2 supported the bacterial growth, which caused a significant decrease of basidiomycetal biomass compared to N2-free conditions. The presence of B. acida increased the biomass of T. versicolor to a low extent, but had no effect on the biomass of O. placenta. In contrast to the previously mentioned organisms, Hypholoma fasciculare and proteobacteria occur together in nature. In experiments, the growth of biomass of H. fasciculare and proteobacteria was supported by organic nitrogen, urea and ammonium chloride. The N2 fixation of the bacteria was significant but amounted to a low extent and was therefore explained by adsorption and not by nitrogenase activity. Competition between H. fasciculare and proteobacteria for the same nitrogen sources appeared more probable than N enrichment by diazotrophic activity. T3 - BAM Dissertationsreihe - 87 KW - Holz KW - Diazotrophe KW - Basidiomyceten KW - IRMS KW - 15N2 PY - 2012 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:b43-716 SN - 978-3-9815134-2-4 SN - 1613-4249 VL - 87 SP - 1 EP - 98 PB - Bundesanstalt für Materialforschung und -prüfung (BAM) CY - Berlin AN - OPUS4-71 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - THES A1 - Nie, Yaru T1 - Surface silanization of carbon nanofibers and nanotubes for altering the properties of epoxy composites N2 - Diese Arbeit beschreibt die Oberflächenmodifizierung von Kohlenstoffnanofasern (CNFs) und mehrwandigen Kohlenstoffnanoröhren (MWCNTs) sowie die Eigenschaften von damit hergestellten Epoxid-Kompositen. Es wurden Korrelationen zwischen chemischen Oberflächenmodifizierungen und Kompositeigenschaften untersucht. Im ersten Teil wurden nach einer Oxidation zur Erzeugung von Carboxygruppen daran anknüpfend drei unterschiedliche Reaktionswege zur Silanisierung der oxidierten Oberflächen der nanoskaligen Kohlenstoffmaterialien untersucht: 1. direkte Silanisierung mit 3-Glycidoxypropyltrimethoxysilan 2. Reduktion der Carboxygruppen zu den alkoholischen Hydroxygruppen und Silanisierung mit 3-Aminopropyltrimethoxysilan 3. Silanisierung mit 3-Isocyanatopropyltriethoxysilan und weitere Silanisierung mit 3-Aminopropyltrimethoxysilan Die Oxidation sowie die Silanisierung der CNFs und MWCNTs wurden systematisch und detailliert anhand verschiedener analytisch-chemischer Methoden charakterisiert. Im zweiten Teil wurden CNFs oder MWCNTs in Epoxidharzen dispergiert und die physikalischen Eigenschaften der daraus hergestellten Nanokomposite beschrieben. So zeigten Epoxid-Komposite, die mit silanisierten CNFs versetzt wurden, verbesserte mechanische Eigenschaften. Auch die elektrische Leitfähigkeit der Epoxid-Komposite stieg mit zunehmendem Gehalt der Nanofüllstoffe, wobei die elektrische Leitfähigkeit von Epoxid-Kompositen mit silanisierten CNFs aufgrund der isolierenden Silanschicht niedriger war als die der Epoxid-Komposite mit unmodifizierten CNFs. Bei MWCNTs-Epoxid-Kompositen bewirkte die Silanisierung eine größere Änderung der elektrischen Leitfähigkeit im Vergleich zu den CNFs-Epoxid-Kompositen. Das Einbringen von CNFs in das Epoxidharz erhöhte die thermische Leitfähigkeit. Die Wärmeleitfähigkeit der Epoxid-Komposite konnte in Abhängigkeit von der Silanmenge auf den CNFs höher oder niedriger sein als die der Epoxid- Komposite mit unmodifizierten CNFs. Die MWCNTs in den Epoxid-Kompositen konnten durch Anlegen eines elektrischen Wechselstromfeldes parallel zu den Feldlinien ausgerichtet werden, was Messungen einer anisotropen elektrischen Leitfähigkeit an den Kompositen belegten. Die nasschemische Silanisierung der nanoskaligen Kohlenstoffmaterialien stellt eine vielseitige und einfache Methode dar, die Eigenschaften von Polymerkompositen gezielt zu modifizieren. Diese Änderungen der Materialeigenschaften wurden dann vor allem durch stärkere Wechselwirkungen an den Grenzflächen zwischen Füllstoffen und Polymer sowie durch eine bessere Verteilung der Füllstoffe in der Polymermatrix erreicht. N2 - Saprotrophic basidiomycetes decompose wood in aerobic environments and can cause economic damage. The availability of nitrogen is determining for decomposition, and diazotrophic bacteria might enhance the nitrogen availability by fixation of atmospheric N2. Simultaneous decomposition by basidiomycetes and diazotrophs may intensify decomposition, because N2 fixation requires ATP, which could be provided during cellulose decomposition. In this study, the interaction was analysed by measurements of the nitrogen content and the δ15N values in biomass. Besides, the activity of basidiomycetes, influenced by different nitrogen sources, was determined. The analysis of the nitrogen content in biomass of Oligoporus placenta and Trametes versicolor proved the efficient uptake of organic nitrogen by wood-decomposing fungi even if only traces were available. In the presence of urea and ammonium chloride, the growth of T. versicolor was intensified. At cultivations in a 15N2/O2 atmosphere, the diazotrophic bacteria Azotobacter croococcum, Beijerinckia acida and Novosphingobium nitrogenifigens covered 1 to 13% of the nitrogen in their biomass by N2 fixation. If basidiomycetes and diazotrophs were co-cultivated, only B. acida fixed N2 and transferred it to both fungi. A. croococcum and N. nitrogenifigens did not coexist with the fungi. The effects of the nitrogen sources, i.e., organic nitrogen in the medium, organic nitrogen in sapwood and N2 from air, on the biomass of the mentioned basidiomycetes were determined in experiments according to full-factorial experimental plans. Organic nitrogen in the medium increased the growth of both basidiomycetes significantly. In additional experiments, the nitrogen source in the medium was replaced by an inoculum of B. acida. Then, atmospheric N2 supported the bacterial growth, which caused a significant decrease of basidiomycetal biomass compared to N2-free conditions. The presence of B. acida increased the biomass of T. versicolor to a low extent, but had no effect on the biomass of O. placenta. In contrast to the previously mentioned organisms, Hypholoma fasciculare and proteobacteria occur together in nature. In experiments, the growth of biomass of H. fasciculare and proteobacteria was supported by organic nitrogen, urea and ammonium chloride. The N2 fixation of the bacteria was significant but amounted to a low extent and was therefore explained by adsorption and not by nitrogenase activity. Competition between H. fasciculare and proteobacteria for the same nitrogen sources appeared more probable than N enrichment by diazotrophic activity. T3 - BAM Dissertationsreihe - 86 KW - Carbon KW - mechanical property KW - electrical and thermal conductivity KW - epoxy composites KW - nanofibers KW - silanization PY - 2012 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:b43-727 SN - 978-3-9815134-1-7 SN - 1613-4249 VL - 86 SP - 1 EP - 137 PB - Bundesanstalt für Materialforschung und -prüfung (BAM) CY - Berlin AN - OPUS4-72 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - THES A1 - Pittner, Andreas T1 - A Contribution to the Solution of the Inverse Heat Conduction Problem in Welding Simulation N2 - The present thesis provides a contribution to the solution of the inverse heat conduction problem in welding simulation. The solution strategy is governed by the need that the phenomenological simulation model utilised for the direct solution has to provide calculation results within short computational time. This is a fundamental criterion in order to apply optimisation algorithms for the detection of optimal model parameter sets. The direct simulation model focuses on the application of functional-analytical methods for solving the corresponding partial differential equation of heat conduction. In particular, volume heat sources with a bounding of the domain of action are applied. Besides the known normal and exponential distribution, the models are extended by the introduction of parabolically distributed heat sources. Furthermore, the movement on finite specimens under consideration of curved trajectories has been introduced and solved analytically. The calibration of heat source models against experimental reference data involves the simultaneous adaptation of model parameters. Here, the global parameter space is searched in a randomised manner. However, an optimisation pre-processing is needed to get information about the sensitivity of the weld characteristics like weld pool dimension or objective function due to a change of the model parameters. Because of their low computational cost functional-analytical models are well suited to allow extensive sensitivity studies which is demonstrated in this thesis. For real welding experiments the applicability of the simulation framework to reconstruct the temperature field is shown. In addition, computational experiments are performed that allow to evaluate which experimental reference data is needed to represent the temperature field uniquely. Moreover, the influence of the reference data like fusion line in the cross section or temperature measurements are examined concerning the response behaviour of the objective function and the uniqueness of the optimisation problem. The efficient solution of the inverse problem requires two aspects, namely fast solutions of the direct problem but also a reasonable number of degrees of freedom of the optimization problem. Hence, a method was developed that allows the direct derivation of the energy distribution by means of the fusion line in the cross section, which allows reducing the dimension of the optimisation problem significantly. All conclusions regarding the sensitivity studies and optimisation behaviour are also valid for numerical models for which reason the investigations can be treated as generic. T3 - BAM Dissertationsreihe - 85 KW - Analytical Solution KW - Global Optimisation KW - Neural Networks KW - Welding KW - Temperature Field PY - 2012 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:b43-733 SN - 978-3-9815134-9-1 SN - 1613-4249 VL - 85 SP - 1 EP - 213 PB - Bundesanstalt für Materialforschung und -prüfung (BAM) CY - Berlin AN - OPUS4-73 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - THES A1 - Nies, Daniel T1 - Entwicklung eines Prüfverfahrens zur laserinduzierten thermischen Ermüdung thermischer Schutzschichten mittels einer Laser-Thermoschockprüfeinrichtung N2 - Die Endlichkeit fossiler Brennstoffe und das steigende Umweltbewusstsein sind die immer stärker werdenden Motivationen für die Entwicklung von effizienteren Gasturbinen und Triebwerken zur Energieerzeugung oder zum Antrieb von Land-, Luft- und Seefahrzeugen. Eins der dafür entwickelten Konzepte ist das der thermischen Schutzschichten. Dabei kann durch den Auftrag einer keramischen Schicht die thermische Belastung der beschichteten Bauteile reduziert werden. In dieser Arbeit wird die Möglichkeit der Nutzung einer Laser-Thermoschock-Prüfeinrichtung zur Durchführung von thermo-zyklischen Versuchen an thermischen Schutzschichten untersucht. Die Probenerwärmung erfolgt hierbei durch einen fokussierten Laserstrahl, mit dem durch die gewählte Trajektoriengeometrie und Anpassung der Laserleistung eine homogene Temperaturverteilung auf der Oberflache erzeugt wird. Die für die Durchführung von zyklischen Versuchen notwendigen Erweiterungen der vorhandenen Prüfeinrichtung werden beschrieben, wozu die Entwicklung eines neuen Probenhalters und einer Test- und Auswerteroutine für die Experimente gehört. Zur Begutachtung der Entstehung und des Fortschritts von Schädigungen werden Schallemissionstechniken und thermografische Methoden eingesetzt, deren Möglichkeiten und Grenzen für die Nutzung im Rahmen der Experimente bestimmt werden. Außerdem umfasst die Arbeit eine umfassende temperaturabhängige Charakterisierung des für die thermische Schutzschicht verwendeten keramischen Materials. Hierbei ist besonders die Messung des E-Moduls mittels der dynamischen Resonanzmethode hervorzuheben, die eine selten genutzte Technik ist. Bei der Charakterisierung zeigen sich keine besonderen Abweichungen von den erwarteten Werten. Lediglich eine geringere Porosität als vom Hersteller erwartet und eine unveränderte Phasenzusammensetzung nach isothermer Auslagerung wurden beobachtet. Die bei den zyklischen Experimenten angestrebten Oberflächentemperaturen von über 1000 °C machen es nötig, die Absorption der Proben durch eine zusätzliche Beschichtung mit Magnetit zu erhöhen. Zur Messung der Temperaturverteilung auf der Probenoberfläche wird eine Infrarot- Kamera genutzt, die für diese Zwecke kalibriert wird. Die eingebaute aktive Druckluftkühlung der Probenruckseite erlaubt die Steuerung des Temperaturgradienten, besitzt aber noch Verbesserungspotenzial. Schon ohne aktive Kühlung der Proben ist ein Versuchsregime realisierbar, bei dem die thermischen Belastungen mit hoher Präzision reproduzierbar sind und mit dem die realen Einsatzbedingungen von keramischen Schutzschichten nachempfunden werden können. Die Entstehung und der Fortschritt von Schädigungen in Form von Delaminationen kann mit thermografischen Methoden und Schallemissionstechniken beobachtet werden. Bei der Ortung der Schallsignale zeigen sich die Grenzen der vorhandenen Ausrüstung. Eine relativ genaue Ortung der Quelle ist mit einer zeitaufwendigen manuellen Routine möglich, deren Ergebnis eine starke Abhängigkeit von der Signalqualität zeigt. Eine reduzierte Zonenortung mit einer automatischen Auswertung zeigt zufriedenstellende Ergebnisse. Eine Kombination der Ergebnisse der Zonenortung, der Analyse der Schallsignale und den thermografischen Analysen der Daten der Infrarot-Kamera ermöglicht eine sehr gute Visualisierung der Schädigungsentwicklung. Während erster Versuche konnten Delaminationsrisse in der keramischen Dammschicht erzeugt werden, die in der Nähe der Dammschicht-Haftschicht-Grenzschicht liegen. Dies entspricht einem Schadensbild, das durch eine hohe zyklische Belastung der Proben erreicht wird. Durch die Nutzung eines fokussierten Laserstrahls kommt es zu einer Temperaturüberhöhung im Bereich des Laserspots. Dies bewirkt, dass die thermozyklische Belastung der Proben noch um einen Thermoschockbeitrag erweitert wird. N2 - The finite nature of fossil fuel supply and the growing environmental awareness become increasingly stronger motivations for the development of efficient gas turbines and jet engines for power generation or as engines for land-, sea- and water-based vehicles. One concept developed for this purpose are thermal barrier coatings, where the thermal load of components is reduced by applying a ceramic coating onto the components. In this work the possibility to use a laser thermal shock facility for thermo-cyclic testing of thermal barrier coatings is examined. A focused laser beam is used for heating the sample and a homogeneous temperature distribution on the sample surface is achieved by the used trajectory and radial adjusted laser power. The required improvements of the existing testing facility are explained, including the development of a new sample holder and of the testing and evaluation routines for the experiments. For the assessment of the initiation and evolution of damages, acoustic emission and thermographic methods are used. The possibilities and limits of these methods are assessed during the experiments. The work also includes an extensive temperature dependent characterisation of the ceramic material used for the thermal barrier coating. In this part, the measurement of the Young’s modulus by a dynamic method is to be highlighted, as this is a rarely used technique. The characterisations show the expected values, except for a lower porosity as expected by the manufacturer and no significant phase changes during isothermal heat treatments. To reach sample surface temperatures above 1000 °C, it is necessary to increase the absorption by an additional coating of magnetite. The temperature distribution on the surface is measured by an infrared camera, which is calibrated for this purpose. With the incorporated active air cooling of the sample backside, the temperature gradient can be controlled, but still leaves room for improvements. Already without cooling, experiments can be completed, where the thermal loads are highly reproducible and comparable to real operation conditions. The development and evolution of delamination damages can be observed by acoustic Emission and thermographic methods. Sound location using the acoustic emission data shows the limits of the applied equipment. Good sound location results can be achieved by a time-consuming manual routine, but the results are highly dependent on the signal quality. A reduced zone location algorithm with an automatic analysis shows satisfying results. A combination of the zone location results, the analysis of the acoustic emission data and the thermographic analysis of the infrared camera data allows a very good visualisation of the damage evolution. First experiments showed delaminations located in the ceramic layer near the topcoat-bondcoatboundary, which corresponds to a failure mode induced by high cyclic loads of the samples. The use of a focused laser beam results in a local hot spot at the laser spot during heating. This adds a thermal shock component to the thermo-cyclic load during the experiments. T3 - BAM Dissertationsreihe - 84 KW - Thermische Schutzschichten KW - laserinduzierte Erwärmung KW - Schallemission KW - Thermografie KW - Yttrium stabilisiertes Zirkonoxid PY - 2012 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:b43-740 SN - 978-3-9814634-8-4 SN - 1613-4249 VL - 84 SP - 1 EP - 143 PB - Bundesanstalt für Materialforschung und -prüfung (BAM) CY - Berlin AN - OPUS4-74 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - THES A1 - Giesen, Charlotte T1 - ICP-MS and Elemental Tags for the Life Sciences N2 - Die induktiv gekoppelte Plasma Massenspektrometrie (ICP-MS) wurde aufgrund ihrer hohen Empfindlichkeit, des großen linearen dynamischen Messbereichs und ihrer Multielementfähigkeit für die Analytik von Biomolekülen eingesetzt. Jedoch wird das Potential dieser Technik außerhalb der ICP-Gemeinschaft selten genutzt. Daher wurden in dieser Arbeit ICP-MS-basierte Immunoassays für medizinische (Krebsdiagnostik, Toxizitätsstudien zu Cisplatin), biochemische (DNA Mikroarray, Einzelzellanalytik) und umweltrelevante (Lebensmittelanalytik) Anwendungen entwickelt. Die Detektion erfolgte durch chemische Markierungen. Die Laserablation (LA)-ICP-MS wurde für die direkte Analyse von festen Proben wie Mikroarrays und Gewebedünnschnitten eingesetzt. Ein Immunoassay zur Ochratoxin A (OTA) Bestimmung in Wein wurde entwickelt, und die ICP-MS mit der herkömmlichen photometrischen Detektion verglichen. Die Nachweisgrenze betrug 0.003 μg L-1, und der Quantifizierungsbereich lag zwischen 0.01 und 1 μg L-1 für beide Methoden. Für die LA-ICP- MS basierte DNA Mikroarray Detektion wurden Goldnanopartikel über Streptavidin-Biotin Bindungen eingeführt. In der immunhistochemischen Diagnostik werden üblicherweise für einen Patienten bis zu 20 Krebsmarker abgefragt, was zu einer Reihe von zeitaufwändigen Färbeprotokollen führt. Daher wurde hier die LA-ICP-MS als eine neue, multiplexfähige Detektionsmethode für die Analytik an Gewebeschnitten entwickelt. Hierzu wurden Lanthanide für die Detektion von bis zu drei verschiedenen Tumormarkern in Brustkrebsgewebe eingesetzt. Darüber hinaus wurde mittels Iodmarkierung eine LA-ICP-MS Methode entwickelt, in der ein 4 μm Laserstrahl ausreichend war für die Darstellung von einzelnen Zellen und Zellkernen. Iod wurde außerdem als interner Standard für Gewebeschnitte verwendet. Zusätzlich wurden Pt-Protein Komplexe mit 1D und 2D Gelelektrophorese getrennt und mit LA-ICP-MS analysiert. Die hohe räumliche Auflösung dieser Technik wurde anhand der Detektion von platinierten Proteinen in Rattennierengewebe auch in einer aktuellen Studie zur Toxizität von Cisplatin und dem daher notwendigen Schutz der Niere unter Beweis gestellt. N2 - Inductively coupled plasma mass spectrometry (ICP-MS) has been applied for the analysis of biomolecules due to its high sensitivity, wide linear dynamic range, and multielement capabilities. However, outside the elemental MS community the potential of this technique, e.g. for life sciences applications, is not yet fully exploited. Thus, the development of ICP-MS-based (immuno) assays for a wide range of medical (cancer diagnostics, cisplatin toxicity studies), biochemical (DNA microarray, single cell analysis), and environmental (analysis of comestible goods) applications was accomplished by utilization of chemical labels. Laser ablation (LA)-ICP-MS was employed for the direct analysis of solid samples like microarrays and thin tissue sections. An immunoassay was developed for ochratoxin A (OTA) determination in wine, and ICP-MS detection was compared to conventional photometry by gold nanoparticle tagging and horseradish peroxidase, respectively. Detection limits of the assay were optimized to 0.003 μg L-1, and the quantification range was 0.01–1 μg L-1 for both methods. For LA-ICP-MS-based DNA microarray detection, gold nanoparticle tags were specifically introduced via a streptavidin-biotin linkage. In immunohistochemistry (IHC), up to 20 tumor markers are routinely evaluated for one patient and thus, a common analysis results in a series of time consuming staining procedures. Hence, LA-ICP- MS was elaborated as a detection tool for a novel, multiplexed IHC analysis of tissue sections. Different lanthanides were employed for the simultaneous detection of up to three tumor markers (Her 2, CK 7, and MUC 1) in a breast cancer tissue. Additionally, iodine was employed as a labeling reagent, and a new LA-ICP-MS method for single cell and cell nucleus imaging was developed at 4 μm laser spot size. Iodine was also applied as a new internal standard for tissue samples. Moreover, Pt-protein complexes separated by an optimized 1D and 2D gel electrophoresis were analyzed by LA-ICP-MS. The high spatial resolution of this technique was further demonstrated in a current study of cisplatin toxicity and renal protective strategies in rat kidney tissue by detecting platinated proteins. T3 - BAM Dissertationsreihe - 83 KW - ICP-MS KW - Life Sciences KW - Nanoparticles KW - Elemental Tags PY - 2012 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:b43-758 SN - 978-3-9814634-7-7 SN - 1613-4249 VL - 83 SP - 1 EP - 199 PB - Bundesanstalt für Materialforschung und -prüfung (BAM) CY - Berlin AN - OPUS4-75 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - THES A1 - Knappe, Patrick T1 - Die A4F-SAXS Online-Kopplung zur Untersuchung von Nanopartikeln und Polymeren N2 - In der vorliegenden Arbeit wird die Online-Kopplung der Asymmetrischen Fluss- Feldflussfraktionierung (A4F) mit Kleinwinkelröntgenstreuung (SAXS) als leistungsfähiges analytisches Werkzeug vorgestellt und auf aktuelle Problemstellungen in der Nanopartikelanalytik wie auch auf Modellsysteme praxisrelevanter Polymere angewandt. Die A4F bietet die Möglichkeit, Suspensionen oder Lösungen von Teilchen ihrer Größe nach aufzutrennen. Bedingt durch das besondere Trennprinzip werden auf den Analyten nur minimale Scherkräfte wirksam, die im Gegensatz dazu bei anderen chromatographischen Methoden in erheblichem Maße auftreten können. Dies ermöglicht auch die Bearbeitung von diesbezüglich sehr empfindlichen Proben ohne dabei deren Integrität zu manipulieren. Die Kleinwinkelröntgenstreuung ermöglicht die zerstörungsfreie Untersuchung von Strukturmerkmalen in einer Größendomäne von etwa einem bis einhundert Nanometern. Durch die Kopplung mit A4F wird die Komplexität der ausgewählten Systeme maßgeblich verringert, die sonst aufgrund der sehr breiten Größenverteilungen der enthaltenen Teilchen schwer zu charakterisieren sind. Es konnten mit dieser Methodik detaillierte Aussagen über die Probenbeschaffenheit in Hinblick auf Teilchengestalt, -größenverteilung bzw. -konformation getroffen werden. Die Einbindung eines Dynamischen Lichtstreudetektors in den Kopplungsaufbau ließ noch weitergehende Aussagen zu. So wurde gezeigt, dass eine Nanopartikelsuspension sowohl hinsichtlich der Form, Größe und Größenverteilung der Nanopartikelkerne als auch der Stärke der Stabilisatorschicht in einem Online-Experiment charakterisiert werden kann. Diese Parameter sind wichtige Kenngrößen, die sowohl für die Funktionalität als auch Bioverfügbarkeit und Toxizität von Nanopartikeln maßgeblich sind und auf diese Weise zeitsparend und mit hoher Präzision erhalten werden konnten. Desweiteren wurde diese Kopplungsmethode erstmals auf verschiedene Polymersysteme wie Polyvinylpyrrolidon sowie starke und schwache Polyelektrolyte mit Erfolg angewendet. Durch die eingesetzte Größentrennung können Proben in einem sehr weiten Molmassenbereich fraktioniert werden, die häufig zu unerwünschten Wechselwirkungen in trägerbasierten Trennmethoden neigen. Durch die verwendete Röntgenstreuung konnten auch Strukturdetails kleiner Polymer- Größenfraktionen aufgelöst werden, die mit üblichen Standardverfahren nicht mehr zugänglich sind. N2 - In the present thesis the online-coupling of asymmetric flow field-flow fractionation(A4F) with small-angle X-ray scattering (SAXS) as a versatile analytical tool is introduced and applied to current challenges in nanoparticle analysis as well as to model systems of technically relevant polymers. The A4F provides size separation of sample solutions and suspensions. Due to the separation principle only low shear forces are applied which appear in competing methods. Therefore, this method allows processing of very sensitive sample materials. SAXS allows non-destructive probing of nanoscale structures in the range of about one to one hundred nanometers. By coupling with A4F, the complexity of sample Systems with broad size distributions, which are therefore frequently hard to characterize, is reduced significantly prior to further analysis. Applying this approach, detailed information about sample properties can be gained accurately with respect to the shape, size and size distribution of particles or conformation of macromolecules in short time. Addition of a dynamic light scattering detector to the setup allows a further conclusion. With the latter, a nanoparticles suspension was characterized rapidly and with good precision with respect to the core properties of the particles as well as the thickness of the stabilizer’s shell in a single online run. These parameters are important when dealing not only with functionality but also with the bioavailability or toxicity of nanoparticles. This methodology was also successfully applied to polymer systems for the first time, namely poly(vinyl pyrrolidone)s as well as strong and weak polyelectrolytes. Additionally, due to the applied separation method samples with broad molar mass distributions were processable which otherwise tend to interfere with stationary phasebased chromatography. Furthermore, using SAXS, structural properties can be resolved from smaller polymer size-fractions which are hardly accessible with other standardly used methods. T3 - BAM Dissertationsreihe - 82 KW - A4F (Asymmetrische Fluss-Feldflussfraktionierung) KW - Analytik von Polyelektrolyten KW - Polymeranalytik KW - Nanopartikelanalytik KW - SAXS (Small-Angle X-ray Scattering=Röntgenkleinwinkelstreuung) PY - 2012 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:b43-766 SN - 978-3-9814634-6-0 SN - 1613-4249 VL - 82 SP - 1 EP - 140 PB - Bundesanstalt für Materialforschung und -prüfung (BAM) CY - Berlin AN - OPUS4-76 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - THES A1 - Rackwitz, Vanessa T1 - Instrumentelle Fundamentalparameter und ausgewählte Anwendungen der Mikrofokus-Röntgenfluoreszenzanalyse am Rasterelektronenmikroskop N2 - Seit einem Jahrzehnt sind Röntgenquellen für die Mikrofokus-Röntgenfluoreszenzanalyse (μ-RFA) kommerziell erhältlich und bieten die Möglichkeit, die Analytik am Rasterelektronenmikroskop (REM) mit angeschlossenem energiedispersiven Röntgenspektrometer (EDS) zu erweitern. Mit der μ-RFA lässt sich quantitativ, referenzfrei und zerstörungsfrei der Gehalt der chemischen Elemente in einem mikroskopischen Probenvolumen bestimmen. Für die referenzfreie Quantifizierung mit der RFA wird auf die Sherman-Gleichung zurückgegriffen. Diese Gleichung führt die Intensität der detektierten Röntgenstrahlung auf den Gehalt des Elements in der Probe mittels Fundamentalparameter zurück. Zu den instrumentellen Fundamentalparametern zählen das Anregungsspektrum bestehend aus dem Röntgenröhrenspektrum und der Transmission der Röntgenoptik, die Messgeometrie und die Spektrometereffizienz. Das Ziel dieser Arbeit ist die Entwicklung von Prozeduren zur Charakterisierung der instrumentellen Fundamentalparameter der μ-RFA am REM sowie die Evaluierung und Verringerung der Messunsicherheiten anhand einer kalibrierten Instrumentierung: Die aus der Literatur bekannten Algorithmen zur Berechnung von Röntgenröhrenspektren sollen hinsichtlich ihrer Abweichungen evaluiert werden. Ein semi-empirischer Ansatz wird innerhalb dieser Arbeit bezüglich seiner Unsicherheiten und im niederenergetischen Bereich verbessert. Für drei weitere Anodenmaterialien soll dieser Ansatz erweitert werden. Die mit diesem Ansatz berechneten Röntgenröhrenspektren werden mit direkt gemessenen Röntgenröhrenspektren verglichen, die an einem speziell entwickelten Messstand eines Röntgenröhrenherstellers aufgenommen wurden. Eine Prozedur zur Bestimmung der wichtigsten Parameter von Röntgenhalblinsen im parallelisierenden Modus wird entwickelt. Die zeitliche Stabilität der Transmission von Röntgenvolllinsen, die seit mehreren Jahren im regelmäßigen Einsatz an einer μ-RFA-Quelle waren, wird untersucht. Für das Labor wird ein Verfahren zur Bestimmung der Spektrometereffizienz bis 50 keV neu entwickelt. Neben dieser methodischen Weiterentwicklung werden Anwendungen für die neu charakterisierten instrumentellen Fundamentalparameter vorgestellt. Darunter soll die referenzfreie Quantifizierung mit der μ-RFA am REM anhand von repräsentativen Probenklassen hinsichtlich ihrer Stärken und Schwächen vorgestellt werden. Die Nachweisgrenzen der μ-RFA am REM für schwere Spurenelemente in leichten Matrizen werden an Proben zur Überprüfung einer EU-Richtlinie bestimmt. Darüber hinaus soll überprüft werden, ob die Berücksichtigung der Streueigenschaften einer Probe von Röntgenphotonen für die Analytik ausgenutzt werden kann. N2 - For a decade X-ray sources have been commercially available for the microfocus X-ray fluorescence analysis (μ-XRF) and offer the possibility of extending the analytics at a scanning electron microscope(SEM) with an attached energy dispersive X-ray spectrometer (EDS). By using the μ-XRF it is possible to determine the content of chemical elements in a microscopic sample volume in a quantitative, reference-free and non-destructive way. For the reference-free quantification with the XRF the Sherman equation is referred to. This equation deduces the intensity of the detected X-ray intensity of a fluorescence peak to the content of the element in the sample by means of fundamental parameters. The instrumental fundamental parameters of the μ-XRF at a SEM/EDS system are the excitation spectrum consisting of X-ray tube spectrum and the transmission of the X-ray optics, the geometry and the spectrometer efficiency. Based on a calibrated instrumentation the objectives of this work are the development of procedures for the characterization of all instrumental fundamental parameters as well as the evaluation and reduction of their measurement uncertainties: The algorithms known from the literature for the calculation of X-ray tube spectrum are evaluated with regard to their deviations in the spectral distribution. Within this work a novel semi-empirical model is improved with respect to its uncertainties and enhanced in the low energy range as well as Extended for another three anodes. The emitted X-ray tube spectrum is calculated from the detected one, which is measured at an especially developed setup for the direct measurement of X-ray tube spectra. This emitted X-ray tube spectrum is compared to the one calculated on base of the model of this work. A procedure for the determination of the most important parameters of an X-ray semi-lens in parallelizing mode is developed. The temporal stability of the transmission of X-ray full lenses, which have been in regular use at the μ-XRF source for several years, is examined. The procedure for the determination of the spectrometer efficiency in the laboratory is extended to 50 keV. Besides this methodological development applications for the newly characterized instrumental fundamental Parameters are presented. The reference-free quantification of μ-XRF spectra of representative samples is performed. The limits of detection of the μ-XRF at the SEM are determined for heavy trace elements in light matrices by the example of specimens that were prepared an EU directive. It is investigated if the consideration of the X-ray scattering properties of a sample can extend the XRF analysis. T3 - BAM Dissertationsreihe - 81 KW - Mikrofokus-Röntgenfluoreszenzanalyse KW - Rasterelektronenmikroskop KW - instrumentelle Fundamentalparameter PY - 2012 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:b43-771 SN - 978-3-9814634-4-6 SN - 1613-4249 VL - 81 SP - 1 EP - 163 PB - Bundesanstalt für Materialforschung und -prüfung (BAM) CY - Berlin AN - OPUS4-77 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - THES A1 - Askar, Enis T1 - Experimentelle Bestimmung und Berechnung sicherheitstechnischer Kenngrößen ethylenoxidhaltiger Gasphasen N2 - Ethylenoxid ist vor allem aufgrund seiner hohen Reaktivität ein wichtiges organisches Zwischenprodukt der chemischen Industrie und in vielen Fällen bisher unersetzbar. Da es auch in Abwesenheit jeglicher Reaktionspartner explosionsartig zerfallen kann, ist der Umgang mit ethylenoxidhaltigen Gemischen jedoch nur mit besonderen sicherheitstechnischen Maßnahmen möglich. Für die sicherheitstechnische Beurteilung der Lagerung, des Transports sowie der Verarbeitung von ethylenoxidhaltigen Gasgemischen und die Ableitung angemessener sicherheitstechnischer Maßnahmen ist die Kenntnis der sicherheitstechnischen Eigenschaften von ethylenoxidhaltigen Gasgemischen unbedingt erforderlich. In der Vergangenheit wurden sicherheitstechnische Kenngrößen von Ethylenoxid immer wieder vereinzelt nur für bestimmte Prozessbedingungen und zum Teil mit unterschiedlichen Methoden durchgeführt. Insbesondere beschränken sich die bisher veröffentlichten Untersuchungen fast ausschließlich auf atmosphärische und nur leicht erhöhte Drücke, obwohl höhere Ausgangsdrücke für industrielle Prozesse mit Ethylenoxid durchaus relevant sind. Die Anwendbarkeit vorhandener Berechnungsmodelle, durch die der experimentelle Aufwand bei der Bestimmung sicherheitstechnischer Kenngrößen erheblich reduziert werden könnte, wurde bei chemisch instabilen Gasen, wie Ethylenoxid bisher kaum untersucht. Für eine umfangreichere Validierung der Berechnungsmethoden ist die in der Literatur verfügbare Datenbasis an sicherheitstechnischen Kenngrößen von Ethylenoxid nicht ausreichend. In dieser Arbeit werden sicherheitstechnische Kenngrößen ethylenoxidhaltiger Gasgemische systematisch in Abhängigkeit verschiedener Einflussgrößen, mit einheitlichen Bestimmungsmethoden und auch bei höheren Betriebsbedingungen untersucht und Methoden für die Berechnung der in dieser Arbeit ermittelten Kenngrößen entwickelt bzw. weiterentwickelt. Durch die Bestimmung der Explosionsbereiche ternärer Gemische aus Ethylenoxid, einem Inertgas und Luft und der Stabilitätsgrenzkonzentrationen binärer Gemische aus Ethylenoxid und einem Inertgas wird zunächst ausführlich untersucht, in welchen Stoffmengenverhältnissen ethylenoxidhaltige Gemische überhaupt explosionsfähig sind. Die Kenntnis dieser Kenngrößen ist zur Ableitung sogenannter primärer Explosionsschutzmaßnahmen zur Vermeidung explosionsfähiger Gemische, z.B. durch Inertisierung, erforderlich. Insbesondere werden die Einflüsse von Ausgangstemperatur und Ausgangsdruck auf die Explosionsgrenzen systematisch untersucht. Dabei werden vor allem auch die praxisrelevanten höheren Betriebsdrücke berücksichtigt. Gerade für Explosionsgrenzen im Bereich der Zerfallsreaktion kann ein enormer Einfluss des Drucks festgestellt werden. Für die Berechnung der Explosionsgrenzen und Stabilitätsgrenzkonzentrationen von Ethylenoxid wird das halbempirische Modell der konstanten Flammentemperaturen weiterentwickelt. Die Explosionsgrenzen und Stabilitätsgrenzkonzentrationen von Ethylenoxid werden unter der modifizierten Annahme, dass das Profil der berechneten Flammentemperaturen entlang der Explosionsgrenzkurve für verschiedene Systeme unabhängig von Ausgangsdruck, Ausgangstemperatur und Art des Inertgases konstant ist, rechnerisch bestimmt. Dazu wird ein spezielles Rechenprogramm entwickelt, dass die Berechnung der Explosionsgrenzen für ein beliebiges Gemisch aus Brenngas, Inertgas und Luft bei beliebiger Ausgangstemperatur und beliebigem Ausgangsdruck ermöglicht, wenn der gesamte Explosionsbereich für ein einzelnes System aus Brenngas, Inertgas und Luft bekannt ist. Die Explosionsgrenzen und Stabilitätsgrenzkonzentrationen von Ethylenoxid können mit diesem Rechenprogramm mit einer durchschnittlichen Abweichung von weniger als 2 Mol-% berechnet werden. Durch die Bestimmung von Zündtemperaturen für den Zerfall von Ethylenoxid und von definierten Gemischen aus Ethylenoxid und einem Inertgas wird schließlich untersucht, bei welchen Temperaturen ein explosionsartiger Zerfall von Ethylenoxid durch eine heiße Oberfläche in einem geschlossenen System initiiert werden kann. Die Abhängigkeit vom Druck, vom Behältervolumen und vom Stoffmengenanteil an EO werden bei den Untersuchungen berücksichtigt. Anders als die nach standardisierten Verfahren bestimmte Zündtemperatur von Gasen, die in offenen Systemen und ausschließlich für Gemische mit Luft ermittelt wird, kann durch die Bestimmung der bisher nicht standardisierten Zündtemperatur für den Zerfall festgestellt werden, bei welcher Oberflächentemperatur es innerhalb eines geschlossenen Systems bei höheren Drücken und in Abwesenheit von Luft zu einem explosionsartigen Zerfall von chemisch instabilen Gasen kommen kann. Es zeigt sich, dass die Zündtemperatur des Zerfalls von Ethylenoxid bei höheren Drücken auch niedriger sein kann als die nach den Standardverfahren für offene Systeme bestimmte Zündtemperatur von Ethylenoxid. Außerdem zeigt sich, dass der Einfluss von Inertgasen auf die Zündtemperatur für den Zerfall von Ethylenoxid stark von der Art des Inertgases abhängig ist. Die Zündtemperaturen für den Zerfall von Ethylenoxid werden mit verschiedenen Modellen mit unterschiedlichem Grad an Vereinfachungen berechnet. Dabei wird rechnerisch die Wandtemperatur bestimmt, bei der es zu einem thermischen Durchgehen der Reaktion („Runaway“) kommt. Es zeigt sich, dass hinsichtlich der Genauigkeit und des Rechenaufwands eine transiente 0-dimensionale numerische Simulation besonders gut für die rechnerische Bestimmung der Zündtemperatur für den Zerfall von Ethylenoxid in Abhängigkeit des Drucks und des Behältervolumens geeignet ist. Temperaturgradienten innerhalb des Behälters werden bei diesem Modell vernachlässigt und die Wärmeabfuhr wird ausschließlich durch die Temperaturdifferenz zwischen Wand und Reaktionsmasse, die Wärmeaustauschfläche und den inneren Wärmeübergangskoeffizienten bestimmt, der nach einem empirischen Ansatz für den Wärmeübergang an senkrechten Platten bei natürlicher Konvektion berechnet wird. Die Berücksichtigung von lokalen Abhängigkeiten innerhalb des Behälters durch ein 2-dimensionales Modell bringt trotz höheren Rechenaufwands keine weiteren ersichtlichen Vorteile. T3 - BAM Dissertationsreihe - 80 KW - Explosion KW - Entzündung KW - Stabilitätsgrenze KW - Chemisch instabile Gase KW - Zerfall PY - 2012 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:b43-789 SN - 978-3-9814634-2-2 SN - 1613-4249 VL - 80 SP - 1 EP - 148 PB - Bundesanstalt für Materialforschung und -prüfung (BAM) CY - Berlin AN - OPUS4-78 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - THES A1 - Jaunich, Matthias T1 - Tieftemperaturverhalten von Elastomeren im Dichtungseinsatz N2 - Elastomerdichtungen finden als Bauteil oder Maschinenelement vielseitige Verwendung. Jedoch war trotz ihrer zentralen Bedeutung die untere Temperaturgrenze, bis zu der solche Dichtungen eingesetzt werden können, bisher nicht tiefgehend verstanden. Dieser Umstand erschwert die entsprechende notwendige sicherheitsrelevante Beurteilung. Mit der vorliegenden Arbeit ist deshalb das Ziel verfolgt worden, dass Materialverhalten repräsentativer Elastomerwerkstoffe in Abhängigkeit von der Temperatur zu verstehen und daraus dann abzuleiten, bis zu welcher Temperatur eine daraus hergestellte Dichtung unter Berücksichtigung der jeweiligen Einsatzbedingungen ihre Funktion noch sicher erfüllen kann. Ausgehend von der in der Literatur beschriebenen Aussage, dass eine Dichtung auch unterhalb der „Glasübergangstemperatur“ funktionsfähig ist, wurde der Einfluss des Glas-Gummi-Übergangs auf das Dichtungsversagen untersucht. Zunächst wurden dazu die Glasübergangstemperaturen an einer Vielzahl von Elastomeren mit gebräuchlichen Verfahren bestimmt, um diese mit dem Verhalten der Dichtung vergleichen zu können. Weiterhin wurde im Rahmen der Arbeit eine neue Charakterisierungsmethode des Tieftemperaturverhaltens von Elastomeren entwickelt, die die bisher für Dichtungen eingesetzte Normprüfung des Druckverformungsrests nachstellt. Mit dieser Methode ist im Vergleich zur Normprüfung jedoch eine deutlich schnellere und automatisierbare Untersuchung des Materialverhaltens gegeben. Darüber hinaus ist durch eine modellgestützte Auswertung eine Extrapolation der Messdaten auf zusätzliche Temperaturen möglich, wodurch der experimentelle Aufwand weiter reduziert wird. Zur temperaturabhängigen Charakterisierung des Versagensvorgangs an realen Bauteilen wurde deren Dichtverhalten mittels eines dafür entwickelten Versuchsstandes untersucht. Die festgestellte Abhängigkeit der Versagenstemperatur vom Verpressgrad konnte unter Verwendung der Ergebnisse aller angewandten Charakterisierungsmethoden für die hier untersuchten statisch beanspruchten Dichtungen erklärt werden. Zudem lassen sich aus dem mit Hilfe des Zeit-Temperatur- Superpositionsprinzips gewonnenen Informationen zur Zeitabhängigkeit der Materialeigenschaften auch Aussagen zum Verhalten von dynamisch beanspruchten Dichtungen ableiten. Mit dem Ergebnis der Arbeit zum Verständnis des Verhaltens von Elastomerdichtungen bei tiefen Temperaturen wird die gezielte Beurteilung und Auswahl von sicherheitsrelevanten Dichtsystemen in Zukunft vereinfacht. N2 - Elastomeric seals are of high importance as machine parts and construction elements, but in spite of this the low temperature limit for the use of a seal was not fully understood. Hence, the required safety relevant evaluation of the lowest acceptable operating seal temperature is difficult. Therefore the presented work was aimed to understand the temperature dependent material behaviour of representative elastomers and to conclude from this knowledge the low temperature limit down to which such seals could safely fulfil the desired requirements. Starting with the published statement that a seal can safely work below its glass Transition temperature the influence of the glass-rubber-transition was investigated. At first the glass-rubber-transition temperatures of the selected elastomers were determined applying several techniques to allow a comparison with the behaviour of the seals during component tests. Furthermore a new method to characterise the low temperature behaviour of elastomers was developed that emulates the key features of the standardised compression set test used for seal materials. In comparison to the standardized test this new method allows a much faster measurement that can be automatically performed. Using a model based data analysis an extrapolation of the results to different temperatures can be performed and therefore the necessary measuring expenditure can be additionally reduced. For the temperature dependent characterisation of the failure process of real seals a measurement setup was designed and the materials behaviour was investigated. By use of the results of all applied characterisation techniques the observed dependence of the failure temperature on the degree of compression could be explained for the investigated seals under static load. Additionally information about the behaviour of such seals under dynamic load could be gained from the time dependent material behaviour by use of the time temperature superposition relationship. By application of the gained insight into the behaviour of elastomeric seals at low temperatures the evaluation and selection of safety relevant seal systems will be simplified in the future. T3 - BAM Dissertationsreihe - 79 KW - leakage rate KW - Elastomer KW - Dichtung KW - Tieftemperaturverhalten KW - Glas-Gummi-Übergang KW - Leckagerate KW - seal, rubber KW - low temperature behavior KW - glass-rubber transition PY - 2012 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:b43-794 SN - 978-3-9814634-3-9 SN - 1613-4249 VL - 79 SP - 1 EP - 153 PB - Bundesanstalt für Materialforschung und -prüfung (BAM) CY - Berlin AN - OPUS4-79 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - THES A1 - Dutschke, Andreas T1 - Systematische Analyse von Reaktionsprodukten beim Abbrand von pyrotechnischen Gegenständen aus dem Indoor-Bereich N2 - Die vorliegende Arbeit beschäftigt sich mit der systematischen Untersuchung von gas- und aerosolförmigen Reaktionsprodukten beim Abbrand von pyrotechnischen Gegenstanden für den Indoor-Bereich. Dazu wurden alle Parameter der in meiner Diplomarbeit eigens dafür konstruierten Messkammer optimiert und eine Vielzahl an pyrotechnischen Gegenständen vermessen. Die Resultate wurden mit Messungen unter realen Bedingungen verglichen. Zur besseren Beurteilung wurden zusätzlich Emissionsmessungen bei fünf verschiedenen Feuerwerksshows, sowohl Indoor als auch Outdoor, durchgeführt. Als Hauptergebnis konnte festgestellt werden, dass die gas- und aerosolförmigen Reaktionsprodukte unabhängig von dem pyrotechnischen Gegenstand online und mit einer guten Zeitauflösung in der Messkammer detektierbar sind. Eine Korrelation der Resultate zu den Messungen unter realen Bedingungen konnte hergestellt werden. Des Weiteren wurde nachgewiesen, dass der Effekt der als raucharm deklarierten pyrotechnischen Gegenstände nicht durch geringere Anzahlkonzentrationen, sondern durch geringere Durchmesser der entstehenden Aerosole erzielt wurde. Resultierend daraus waren mehr Partikel alveolengängig. N2 - This work shows results of a systematic investigation of gaseous and aerosol-type reaction products emitted by pyrotechnical articles for indoor use. An optimization of all parameters of the measuring chamber, specially designed in my thesis, was done and various pyrotechnical articles were gauged. The results were compared with measurements under realistic conditions. For a better evaluation, emission measurements were done at five firework displays, indoor as well as outdoor. As a main result, it was found that the gaseous and aerosol-type reaction products are detectable in the measuring chamber online and with a good demand interval, independent of the kind of pyrotechnical article. Also, correlations to the results under realistic conditions were found. Furthermore, it was verified that the effect of so-called smokeless pyrotechnical articles were not reached through smaller number concentrations, but through smaller diameters of the emitted aerosols. The outcome of this was that more particles were alveolar. T3 - BAM Dissertationsreihe - 94 KW - Indoorpyrotechnik KW - Aerosole KW - Reaktionsgase KW - Referenzwerte KW - Großfeuerwerk PY - 2012 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:b43-642 SN - 978-3-9815134-9-3 SN - 1613-4249 VL - 94 SP - 1 EP - 247 PB - Bundesanstalt für Materialforschung und -prüfung (BAM) CY - Berlin AN - OPUS4-64 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - THES A1 - Habib, Abdel Karim T1 - Instationäre Berechnung der Lachenverdunstung mittels eines Grenzschichtverfahrens N2 - Im Rahmen von Auswirkungsbetrachtungen, wie sie bei Sicherheitsberichten oder Risikoanalysen erforderlich sind, sind oft Szenarien mit einer Lachenverdunstung von brennbaren und/oder toxischen Flüssigkeiten zu untersuchen. Wesentliche Einflussgrössen für die Konzentrationsverteilung in der Umgebung sind der Verdunstungsmassenstrom, das Lachenwachstum und die Gasausbreitung. Bisher werden für diese Berechnungen mehrere Modelle mit unterschiedlicher Genauigkeit miteinander gekoppelt. In dieser Arbeit wird ein instationäres turbulentes Grenzschichtverfahren vorgestellt, das mit dem Ziel entwickelt wurde, bei relativ geringem Rechenaufwand eine genauere Berechnung des Verdunstungsmassenstromes zu ermöglichen, sowie ausgehend von der Freisetzung aus der Lache direkt die Konzentrationsverteilung in der Umgebung ermitteln zu können. Im Vergleich zu in der Literatur veröffentlichten und eigenen experimentellen Untersuchungen zeigt sich, dass das hier entwickelte Grenzschichtverfahren bei der Berechnung des Verdunstungsmassenstromes mindestens auf dem Niveau der besten empirischen Modelle liegt. Die instationäre Formulierung der Grenzschichtgleichungen ermöglicht zudem eine zeitabhängige Betrachtung der in der Lache herrschenden Temperaturen, des Massenstromes sowie der Konzentrationsverteilung in der Umgebung. Des weiteren ermöglicht das instationäre Grenzschichtverfahren die direkte Bestimmung der explosionsfähigen Masse in der Gaswolke über der Lache und die Berechnung des Massenstromes bei der Verdampfung von siedenden Flüssigkeiten mit anschließender Unterkühlung und Übergang zur Verdunstung. T3 - BAM Dissertationsreihe - 93 KW - Grenzschichtgleichungen KW - Stoffübergang KW - Gasausbreitung KW - Verdunstung KW - Instationär PY - 2012 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:b43-652 SN - 978-3-9815134-8-6 SN - 1613-4249 VL - 93 SP - 1 EP - 129 PB - Bundesanstalt für Materialforschung und -prüfung (BAM) CY - Berlin AN - OPUS4-65 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - THES A1 - Perret, Birgit T1 - Neuartige halogenfreie Flammschutzmittel für schnell härtende Epoxidharzsysteme und deren kohlefaserverstärkte Komposite in Automobilbau und Luftfahrt N2 - Phosphorhaltiger Flammschutz als effektive halogenfreie Alternative in Epoxidharzen rückt immer mehr in den Blickpunkt des Interesses. Oft werden kommerzielle additive Flammschutzmittel verwendet, die zu Einbußen vor allem in der Mechanik führen. Zusätze, wie Kohlefasern beeinflussen die Wirkungsmechanismen und Effektivitäten der Flammschutzmittel zusätzlich. Der Anteil an optimal an die Epoxidharzmatrix angepassten additiven Flammschutzmitteln ist bisher gering, da ein tieferes Verständnis von Struktur-Eigenschaftsbeziehungen und den daraus resultierenden vorherrschenden Flammschutzmechanismen und Einflüssen von Additiven fehlt. In der vorliegenden Arbeit wurden Flammschutzmechanismen von systematisch varrierten neuartigen oligomeren Flammschutzmitteladditiven auf Phosphorbasis in zwei in der Industrie gebräuchlichen Epoxidharzen, DGEBA/DMC und RTM6, aufgeklärt und ein Vergleich der Wirkungsweisen der Flammschutzmittel in beiden Harzen gezogen. Das Brandverhalten wurde charakterisiert und die Effizienz der Flammschutzmittel bewertet. Der Einfluss von Kohlefasern auf die Wirkungsmechanismen und das Brandverhalten wurde untersucht und die Effizienz der Flammschutzmittel in den Kompositen mit den Reinharzen verglichen. Das thermische Zersetzungsverhalten wurde mittels TG ermittelt. Produkte aus der Gasphase wurden mit TG- FTIR identifiziert und Wechselwirkungen in der kondensierten Phase online in einer mit FTIR gekoppelten hot- stage Zelle charakterisiert. Intrinsische Brandeigenschaften wurden mit dem Bombenkalorimeter und dem PCFC, die Entflammbarkeit mit LOI und UL 94 bestimmt. Das Brandverhalten wurde anhand von Cone Calorimeter Messungen unter Berücksichtigung verschiedener Brandzenarien beurteilt und die Brandrückstände mittels Elementaranalyse, REM und μ-CT untersucht. Durch die sternförmige Struktur sind die untersuchten Flammschutzmittel gut mit der Harzmatrix mischbar, ihr Einfluss auf die Mechanik ist gering und auf die Glasübergangstemperaturen moderat. In DGEBA/DMC wirken alle Flammschutzmittel hauptsächlich in der Gasphase, in RTM6 sowohl in der Gas- als auch kondensierten Phase. Die Wirkungsweise hängt maßgeblich von vier Faktoren ab: in den Harzen von der strukturellen Beschaffenheit, sowie den Abbautemperaturen, in den Flammschutzmitteln von der hydrolytischen Stabilität, sowie der chemischen Umgebung der Phosphorgruppen. Diese vier Faktoren steuern die Bildung reaktiver Gruppen von Harz und Flammschutzmittel in der kondensierten Phase, die zu Vernetzungsreaktionen führen. Unabhängig von der Wirkung in der Gas- oder kondensierten Phase oder in beiden, reduzieren alle untersuchten Flammschutzmittel das Brandrisiko drastisch, wobei die Kombination aus Gas- und Festphasenaktivität in RTM6 zu einer etwas besseren Effektivität führt. Die Performance in der Entflammbarkeit wird mit Zugabe der Flammschutzmittel in beiden Harzen hinsichtlich des LOI verbessert. Im UL 94 bewirkt die alleinige Gasphasenaktivität der untersuchten Flammschutzmittel in DGEBA/DMC keine Verbesserung, während das Zusammenspiel von Gas- und Festphasenaktivität in RTM6 zur besten Klassifizierung im UL 94 führt. Der Einsatz von Kohlefasern mindert zwar die Wirkung in der kondensierten Phase, die Effizienz der Flammschutzmittel wird auf Grund der weiterhin vorherrschenden Gasphasenaktivität jedoch nur geringfügig beeinflusst. Im LOI führt die Kombination aus X Kohlefasern und Flammschutzmitteln zu teilweise drastischen Steigerungen auf Grund von synergistischen Effekten insbesondere in RTM6. Die Ergebnisse liefern ein umfassendes Verständnis über Struktur-Eigenschaftsbeziehungen phosphorhaltiger Flammschutzmittel und Additive in Epoxidharzen. Die aufgeklärten Wirkungsmechanismen bilden wesentliche Grundlagen für die Weiterentwicklung und Optimierung des Flammschutzes in Epoxidharzen. Unter Berücksichtigung mechanischer Eigenschaften, thermischer Stabilitäten und Flammschutzeffizienz wurden mehrere optimale Flammschutzlösungen gefunden N2 - Phosphorous-containing flame retardants as an effective alternative to halogen-containing ones are attracting growing interest for the use in epoxy resins. Commercially available additive flame retardants often lead to the deterioration of certain material properties, particularly in the mechanical properties. Additives like carbon fibres further influence the mechanisms of action and the effectiveness of flame retardants. The percentage of flame retardants that are adapted perfectly to the epoxy matrix is negligible so far, since deeper understanding is lacking of the structure-property relationships and the flame-retarding mechanisms they entail, not to mention the influence of additives. The present study elucidates the flame-retarding mechanisms of different novel oligomeric flame retardant additives based on phosphorous, which are added to two industrially used epoxy matrices, DGEBA/DMC and RTM6. The mechanisms of action of These systematically varied flame retardants were compared in both epoxy resins. The burning behaviour was characterised and the efficiency of the flame retardants was estimated. The influence of carbon fibres on the flame-retarding mechanisms and burning behaviour was investigated, and the efficiency of the flame retardants in the composites was compared with that of the bulk materials. The thermal decomposition behaviour was investigated using a TG. Volatile products in the gas phase were identified using a TG-FTIR. Interactions in the condensed phase were characterised online using an FTIR coupled with a hot-stage cell. Intrinsic fire properties were examined with a bomb calorimeter and PCFC, and flammability with LOI and UL 94. The burning behaviour was evaluated via a cone calorimeter under consideration of different fire scenarios. The fire residues were investigated using elemental analysis, REM and μ-CT. All investigated flame retardants are well miscible due to their star-shaped structure, and they have a minor influence on the mechanical properties and a moderate one on the glasstransition temperature. In DGEBA/DMC all flame retardants work mainly in the gas phase. In RTM6 they work in the gas phase as well as in the condensed phase. The mechanism of action is strongly dependent on four parameters: in the epoxy resins, on their structure and the decomposition temperatures resulting from their structure; in the flame retardants, on the hydrolytical stability and chemical environment of the phosphorous. These four parameters control the formation of reactive groups from the epoxy resins and the flame retardants in the condensed phase, which lead to cross-linking reactions. Independent of the action in the gas and/or condensed phase, all flame retardants drastically reduce the fire risk, whereas the combination of gas-phase and condensed-phase action in RTM6 yields slightly better efficiency. The flammability performance with regard to the LOI increases with addition of the flame retardants. In the UL 94, for the investigated flame retardants in DGEBA/DMC, the gas-phase action alone does not improve performance, while the interplay of gas-phase and condensed-phase action in RTM6 leads to the best classification in UL 94. Indeed, the use of carbon fibres decreases the action in the condensed phase, while the efficiency of the flame retardants with respect to the gas-Phase action is influenced only slightly. In the LOI the combination of carbon fibres and flame retardants leads to some drastic increases due to synergistic effects, particularly in RTM6. T3 - BAM Dissertationsreihe - 92 KW - Flammschutzmittel KW - carbon fibre composites KW - burning behavior KW - decomposition mechanisms KW - Epoxidharze KW - Abbaumechanismen KW - Brandverhalten KW - Kohlefaserkomposite KW - Flame retardants KW - epoxy resins PY - 2012 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:b43-660 SN - 978-3-9815134-7-9 SN - 1613-4249 VL - 92 SP - 1 EP - 178 PB - Bundesanstalt für Materialforschung und -prüfung (BAM) CY - Berlin AN - OPUS4-66 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - THES A1 - Schlichting, Joachim T1 - Integrale Verfahren der aktiven Infrarotthermografie N2 - Die zerstörungsfreie Prüfung ist eine Aufgabe von großer Bedeutung, sowohl aus wirtschaftlicher Perspektive, als auch um die notwendige Sicherheit technischer Systeme gewährleisten zu können. Mit der Thermografie steht eine schnelle und berührungslose Prüftechnik zur Verfügung, die nicht zuletzt wegen der rapiden Entwicklung auf dem Gebiet der Infrarotkameras in letzter Zeit große Aufmerksamkeit erfährt. Typischerweise werden thermografisch oberflächennahe, parallel zur Oberfläche ausgedehnte Defekte nachgewiesen. In dieser Arbeit werden zwei untypische Prüfprobleme gelöst. An Punktschweißverbindungen wird mit der Linsengröße eine Struktur in der Mitte der Probe mittels Blitzlichtthermografie indirekt vermessen. Hier können typische Fehlerbilder wie Klebverbindungen und Spritzer sicher erkannt werden, was statistisch abgesichert durch eine Serienmessung und den Vergleich mit zerstörender Prüfung gezeigt wird. Ein Beispiel für orthogonal zur Oberfläche orientierte Fehlstellen stellen Risse dar, wie sie beispielsweise in Schweißnähtenn häufig auftreten. Neben der Entwicklung eines Verfahrens zur Detektion von Rissen, welches auf kommerziell erhältlichen Geräten aufbaut, wurde in Experimenten und Finite-Elemente-Simulationen untersucht, inwieweit sich auch die geometrischen Eigenschaften bestimmen lassen. Mit einem Verfahren, das ebenso wie die Methode zur Prüfung der Schweißpunkte auf der Analyse zeitlich und räumlich integraler Größen basiert, die vom thermischen Widerstand abhängen, ist die gleichzeitige Bestimmung von Winkel und Tiefe möglich. N2 - Non-destructive evaluation is a task of utmost importance for both, the economic point of view and to guarantee the required safety and reliability of technical systems. Thermography is a fast and contactless technique which received continued attention not least through the significant price drop at the infrared camera market. It is typically used to detect near-surface defects which are expanded parallel to the surface. This thesis deals with two non-standard inspection tasks. With the weld lens diameter of spot welds, a feature in the sample's geometrical center is indirectly sized by ash thermography. The presented method is suitable to distinguish typical error classes like stick welds or expulsions. This fact is validated by statistical evaluations of thermographic and destructive test series. As an example for perpendicularly oriented imperfections, surface cracks are investigated, which can be a major problem at welding seams. A technique for detecting cracks entirely based on commercially available equipment is developed. In addition, the accessibility of geometric characteristics of cracks was examined by experiments and FEM-simulations. Similar to the method developed for assessing spot welds, an approach based on the analysis of spatial and temporal integral quantities which depend on the thermal resistance is used. In doing so, the simultaneous determination of crack angle and depth is possible. T3 - BAM Dissertationsreihe - 91 KW - Aktive Thermografie KW - FEM KW - Spot Welding KW - Cracks KW - Nondesstructive Evaluation KW - Active Thermography KW - Zerstörungsfreie Prüfung KW - Punktschweißen KW - Risse KW - FEM PY - 2012 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:b43-676 SN - 978-3-9815134-6-2 SN - 1613-4249 VL - 91 SP - 1 EP - 209 PB - Bundesanstalt für Materialforschung und -prüfung (BAM) CY - Berlin AN - OPUS4-67 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - THES A1 - Seefeldt, Henrik T1 - Flame retardancy of wood-plastic composites N2 - Über das Brandverhalten von „Wood-plastic Composites“ (WPCs) und deren Flammschutz ist bislang wenig bekannt. Die Verwendung von WPCs ist in den vergangenen Jahren stetig gestiegen. Vor allem in ihrem Hauptanwendungsgebiet als Bodenbeläge verzeichnen WPC Materialien einen großen Marktanteil. Bis jetzt existiert jedoch noch keine Flammschutzlösung, die alle nötigen Anforderungen im Bauwesen erfüllt. Flammgeschützte Materialien sind jedoch vor allem für Innenanwendungen und im Bereich von Fluchtwegen unabdingbar. In dieser Arbeit werden zum einen grundlegende Mechanismen über das Brandverhalten von WPCs aufgeklärt. Zum anderen werden die Wirksamkeit und die Wirkungsweise verschiedener Flammschutzmitteln in WPC Materialien untersucht. Ein spezielles Augenmerk wird dabei auch auf Endprodukte aus WPC Materialien gelegt. WPC wurde dabei in seiner Hauptanwendung als Fußbodenbelag untersucht. Das Brandverhalten wurde für Materialien und Produkte mit Hilfe von „Cone Calorimeter“ Untersuchungen und „Radiant Panel Tests“ bestimmt. Zudem wurden numerische Simulationen genutzt, um den Einfluss verschiedener thermischer Materialparameter auf das Brandverhalten zu erforschen. Desweiteren wurde das thermische Zersetzungsverhalten mittels thermogravimetrischer Methoden und spektroskopischen Untersuchungen ermittelt. Auf dessen Grundlage konnten Abbaumechanismen für WPC Materialen in Verbindung mit verschiedenen Flammschutzmitteln erstellt werden. WPCs zeigen das gleiche Brandverhalten wie Holz, auf Grund des polymeren Anteils ist jedoch die Wärmefreisetzungsrate während der Verbrennung stark erhöht. Es konnte gezeigt werden, dass alle untersuchten Flammschutzmittel einen positiven Effekt auf das Brandverhalten von WPCs hatten. Beste Ergebnisse wurden durch Ammonium-Polyphosphat, Paxymer und expandierbaren Graphit erzielt. Expandierbarer Graphit war besonders in Verbindung mit rotem Phosphor sehr wirksam, da der Phosphor den gebildeten Rückstand stabilisierte. Neben dem Einfluss von Flammschutzmitteln konnte gezeigt werden, dass für WPC Fußbodendielen auch andere Einflussfaktoren, wie die Geometrie und der Feuchtigkeitsgehalt eine wichtige Rolle spielen. So weisen Hohlkammerprofildielen im Vergleich zu Vollprofilproben zwar eine verminderte Menge an brennbarem Material auf, die Flammenausbreitung ist jedoch stark erhöht. N2 - Up to now only little knowledge has been recorded about the fire behavior and flame retardancy of wood-plastic composites (WPCs). The use of WPCs has increased continuously in recent years. Especially in their main field of application as a decking material, WPCs present a big share of the market. To date no flame-retarded solution has been introduced for WPC materials that fulfils the necessary requirements. But flameretarded materials are indispensable, especially for indoor use and the protection of escape routes. In this study basic knowledge about the fire behavior of WPCs is investigated first. Second, the effectiveness and mode of action of different flame-retardant additives is investigated. Special attention is drawn to products made of WPC material. Therefore WPC was further investigated in its main field of application as decking boards. The fire behavior of materials and products was investigated by means of cone calorimeter measurements as well as radiant panel tests. Furthermore numerical simulations were carried out to study the effects of various thermal material properties on burning behavior. Thermal decomposition was studied using thermogravimetric methods and spectroscopic investigations. Against this background, models for thermal decomposition pathways were built for combinations of WPC material with different flame retardants. WPCs show burning behavior similar to that of pure wood samples with an increased heat release rate due to polymeric fractions. It is shown that all investigated flame retardants had a positive effect on the burning behavior of WPCs. The best results were achieved by the flame retardants ammonium polyphosphate, Paxymer and expandable graphite. Especially in combination with red phosphorus, expandable graphite was highly effective because red phosphorus stabilized formed residue. Apart from the influence of flame retardants, other influencing factors like geometry and moisture content also played an important role concerning the flame retardancy of WPC decking boards. Indeed, hollow decking boards offer a reduced amount of combustible material, but their flame spread is increased in comparison to solid samples. T3 - BAM Dissertationsreihe - 90 PY - 2012 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:b43-684 SN - 978-3-9815134-5-5 SN - 1613-4249 VL - 90 SP - 1 EP - 107 PB - Bundesanstalt für Materialforschung und -prüfung (BAM) CY - Berlin AN - OPUS4-68 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - THES A1 - Nooke, Alida T1 - Gas Detection by Means of Surface Plasmon Resonance Enhanced Ellipsometry N2 - In dieser Arbeit wurde der Nutzen von Ellipsometrie in Kombination mit Oberflächenplasmonen- resonanz an 40 - 50 nm Goldschichten als Sensorsystem für sicherheitstechnisch relevante Gase untersucht. Eine Kretschmann Konfiguration bestehend aus einem BK7 Glasprisma und einem mit dem Gold beschichteten BK7 Glasplättchen wurde auf einer Kupfermesszelle platziert, durch welche die Gase mit definiertem Volumenstrom geleitet wurden. Untersucht wurden verschiedenste Gase: entzündliche wie Kohlenwasserstoffe und Wasserstoff, oxidierende wie Sauerstoff und Ozon, toxische wie Kohlenmonoxid und inerte wie Helium und Stickstoff. Durch Einstellen eines festen Einfallswinkels und unter Benutzung des ellipsometrischen Parameters Δ als Messgröße konnten geringste Änderungen in der Gasphase detektiert werden. Die reinen Gase konnten anhand ihres Brechungsindexes unterschieden werden, wobei die Änderung der Gasatmosphäre in Δ einen Anstieg bzw. Abfall relativ zum Referenzgas (Luft oder Stickstoff) hervorrief. Die Analytgase wurden mit dem Referenzgas zu kleineren Konzentrationen gemischt und so die Nachweisgrenzen bestimmt, welche im niedrigen %-Bereich lagen. Zur Verbesserung des Sensors bezüglich der Langzeitstabilität wurden die Goldschichten zusätzlich mit 3 - 10 nm anorganischem Material (TiO2, ZrO2, MgF2 bzw. Fe: SnO2) beschichtet. Jede Schicht wurde mittels Rasterelektronenmikroskopie sowie Rasterkraftmikroskopie untersucht um Aufschluss über die Oberflächenbeschaffenheit zu erhalten. Mittels spektroskopischer Ellipsometrie wurden die optischen Konstanten sowie die Schichtdicken bestimmt. Alle Zusatzschichten schützten die Goldschicht vor unerwünschten Kontaminationen und verlängerten so die Lebensdauer des Sensors. Außerdem konnten die Nachweisgrenzen deutlich verbessert werden, welche mit den Zusatzschichten im unteren ppm-Bereich lagen. Eine besondere Eigenschaft konnte bei Fe: SnO2 beobachtet werden: durch die Eisendotierung ist das Material besonders sensitiv gegenüber dem giftigen Gas Kohlenstoffmonoxid, so dass Konzentrationen unter 1 ppm nachgewiesen werden konnten. Im Hinblick auf eine zukünftige industrielle Nutzung wurde dieses Sensorsystem an ein handelsübliches Rohr montiert, um so Puls- sowie Druckmessungen durchzuführen. Die potentiell ablaufenden Mechanismen an der Sensoroberfläche und denkbare zukünftige Anwendungsmöglichkeiten wurden diskutiert. In dieser Arbeit konnte gezeigt werden, dass Ellipsometrie in Kombination mit Oberflächenplasmonenresonanz als sensitive, schnelle Sensormethode zur Gasmessung genutzt werden kann und dass das Potenzial zu einer industriellen Nutzung gegeben ist. N2 - This thesis investigated gas sensing by means of surface plasmon resonance enhanced ellipsometry. Surface plasmons were excited in a 40 - 50 nm gold layer by a He-Ne-laser using the Kretschmann configuration, which was arranged on a self-made copper measuring cell. A fixed angle of incidence and the ellipsometric parameter Δ as the measured value were used to monitor changes in the gas phase. Different types of gases were investigated: flammable (hydrocarbons and hydrogen), oxidising (oxygen and ozone), toxic (carbon monoxide) and inert (helium and nitrogen). The gas types can be distinguished by their refractive indices, whereas the sensor responds instantly relative to the reference gas with an increase or a decrease in Δ. Diluting the analyte gas with a reference gas (nitrogen or air) allowed the detection limits to be determined, these lay in the low % range. The sensor stability was also enhanced as well as the sensitivity by modifying the gold layers with a 3-10 nm additional layer. These additional layers consisted of the inorganic materials TiO2, ZrO2, MgF2 and Fe: SnO2 which were deposited by different coating processes. Surface investigations were made of every utilised layer: scanning electron microscope and atomic force microscope measurements for surface topology and spectroscopic ellipsometry mapping to determine the optical constants and the layer thicknesses. All applied materials protected the gold layer from contaminations and thus prolonged the life span of the sensor. Furthermore, the detection limits were reduced significantly, to the low ppm range. The material Fe: SnO2 demonstrates a special behaviour in reaction with the toxic gas carbon monoxide: Due to the iron doping, the response to carbon monoxide is extraordinary and concentrations below 1 ppm were detected. In order to approach a future application in industry, the sensor system was adapted to a stainless steel tube. With this measuring arrangement, pulse and pressure experiments could be performed. The probable mechanisms occuring at the sensor surface and feasible applications in the future are discussed in this thesis. T3 - BAM Dissertationsreihe - 89 KW - surface plasmon resonance (SPR) effect KW - hazardous gases KW - sensor layer KW - gas sensor KW - ellipsometry PY - 2012 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:b43-695 SN - 978-3-9815134-4-8 SN - 1613-4249 VL - 89 SP - 1 EP - 133 PB - Bundesanstalt für Materialforschung und -prüfung (BAM) CY - Berlin AN - OPUS4-69 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - THES A1 - Shcheglov, Pavel T1 - Study of Vapour-Plasma Plume during High Power Fiber Laser Beam Influence on Metals N2 - Die wichtigsten Ergebnisse der Dissertation sind: 1. Experimentelle Untersuchungen der Dampf-Plasma-Fackel wurden beim Schweißen von niedriglegierten Stählen großer Blechdicke unter Einsatz der Strahlung eines Hochleistungsfaserlasers (10÷20 kW) durchgeführt. 2. Experimentell wurde festgestellt, dass die Temperatur sowie die Volumenkonzentration der freien Elektronen im laserinduzierten Schweißplasma vernachlässigbar gering sind (Т < 4500 К, n < 1015e cm -3). 3. Es wurde gezeigt, dass neben dem Schweißplasma, das mit einem relativ kleinen Volumen (5-10 mm) nahe der Metalloberfläche entsteht, die Schweißfackel einen größeren Teil (bis 60-70 mm) im oberen Bereich einnimmt, welcher aus der Wolke der kleinen Partikel aus kondensiertem Metalldampf besteht und die Laserstrahlung absorbieren kann. 4. Die experimentell gemessene durchschnittliche Größe der kondensierten Metallpartikel in der Schweißfackel beträgt je nach Fackelhöhe bzw. Schweißprozessparameter 80 nm bis 110 nm. Die Volumenkonzentration der Partikel in der Wolke an der Fackelachse beträgt ca. 1010 cm-3. 5. Die Extinktion der Prüfstrahlung im oberen Teil der Schweißfackel wird zum großen Teil von der Absorption der kleinen kondensierten Partikel verursacht. Der experimentell gemessene Extinktionskoeffizient für eine Prüfstrahlungswellenlänge von 1.3 μm hatte einen Wert von etwa einigen m-1 und ist damit wesentlich größer als der Koeffizient der inversen Bremsstrahlungsabsorption im Schweißplasma. 6. Schutzgaszufuhr (Ar, He) beim Schweißprozess führt zur effektiven Abkühlung des Schweißplasmas im unteren Teil der Fackel bis zur vollen Unterdrückung. Infolge des intensiveren Kondensationsprozesses über der Dampfkapillare kann aber dabei der Einfluss des oberen Teiles noch stärker werden. 7. Die Gesamtleistungsabschwächung des Hochleistungsfaserlaserstrahls, der durch die Schweißfackel zur Metalloberfläche gelangt, kann variierend einen Wert von bis zu 10% haben. Mit Rücksicht auf die zeitliche Dynamik kann dieser Effekt zu einer erheblichen Verschlechterung der Leistungsstabilität der Laserstrahlung führen, die den Dampfkapillareeingang erreicht. N2 - The most important results of the dissertation are: 1. Systematic experimental investigations of the vapour-plasma plume generated during deep penetration high-power (10÷20 kW) ytterbium fiber laser beamwelding of low-alloyed mild steel plates were carried out. 2. It was confirmed experimentally that free electron temperature and concentration in the laser- induced welding plasma plume are negligibly low (Т < 4500 К,ne < 10 15 cm-3). On the basis of these values it can be affirmed that absorption and refraction of high power fiber laser radiation in the welding plasma plume are not able to influence the welding quality in this case. 3. It was shown that the vapour-plasma welding plume is composed of the welding plasma generated in a relatively small area (5-10 mm height) near the metal surface and of an extensive upper part (up to 60-70 mm height) which consists of a small condensed metal vapour particle cloud and is able to absorb electromagnetic radiation. 4. Average condensed metal vapour particle diameter in the welding plume was measured experimentally to vary from 80 nm to 110 nm depending on the welding plume height as well as on the welding process parameters. Volume particle concentration in the cloud on the welding plume axis has a value of about 1010 cm-3. 5. Extinction of the probe laser radiation in the upper part of the welding plume is mainly caused by absorption in the small condensed metal vapour particles. The extinction coefficient at the probe radiation wavelength of 1.3 μm was measured experimentally to have a value of about a few units per meter which is much higher than the inverse Bremsstrahlung absorption coefficient in the welding plasma plume calculated for this radiation wavelength. 6. Shielding gas (Ar or He) supplied to the welding area leads to intensive cooling of the welding plasma in the lower part of the welding plume down to its complete suppression. However, due to the more intensive metal vapour condensation process in the colder medium above the keyhole, the upper part influence can become even stronger. 7. Total attenuation of the high-power fiber laser beam propagating through the whole welding plume height to the metal surface was estimated to be about 10%. Considering the spatial dynamics of the probe light extinction signals it was concluded that the effect of metal vapour condensation over the keyhole during deep penetration high-power fiber laser metal welding is able to significantly worsen of the laser beam power stability when the beam reaches the keyhole inlet. T3 - BAM Dissertationsreihe - 88 KW - Particle diagnostics KW - Plume KW - Plasma diagnostics KW - Laser welding KW - Vapour condensation PY - 2012 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:b43-703 SN - 978-3-9815134-3-1 SN - 1613-4249 VL - 88 SP - 1 EP - 125 PB - Bundesanstalt für Materialforschung und -prüfung (BAM) CY - Berlin AN - OPUS4-70 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR T1 - Amts- und Mitteilungsblatt, Band 42, Heft 2 T3 - Amts- und Mitteilungsblatt der BAM - 2/2012 PY - 2012 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:b43-119 SN - 0340-7551 VL - 42 IS - 2 SP - 1 EP - 151 PB - Bundesanstalt für Materialforschung und -prüfung (BAM) CY - Berlin AN - OPUS4-11 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR T1 - Amts- und Mitteilungsblatt, Band 42, Heft 1 T3 - Amts- und Mitteilungsblatt der BAM - 1/2012 PY - 2012 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:b43-129 SN - 0340-7551 VL - 42 IS - 1 SP - 1 EP - 49 PB - Bundesanstalt für Materialforschung und -prüfung (BAM) CY - Berlin AN - OPUS4-12 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR T1 - Amts- und Mitteilungsblatt, Band 42, Heft 4 T3 - Amts- und Mitteilungsblatt der BAM - 4/2012 PY - 2012 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:b43-97 SN - 0340-7551 VL - 42 IS - 4 SP - 1 EP - 187 PB - Bundesanstalt für Materialforschung und -prüfung (BAM) CY - Berlin AN - OPUS4-9 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR T1 - Amts- und Mitteilungsblatt, Band 42, Heft 3 T3 - Amts- und Mitteilungsblatt der BAM - 3/2012 PY - 2012 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:b43-109 SN - 0340-7551 VL - 42 IS - 3 SP - 1 EP - 375 PB - Bundesanstalt für Materialforschung und -prüfung (BAM) CY - Berlin AN - OPUS4-10 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Pfennig, A. A1 - Kranzmann, Axel T1 - Effect of CO2 and pressure on the stability of steels with different amounts of chromium in saline water N2 - CO2-induced corrosion of casing and tubing steels is a relevant safety issue for compressing emission gasses into deep geological layers (CCS, Carbon Capture and Storage). The influence of CO2 and pressure of the surrounding media on steels is demonstrated in laboratory experiments providing a corrosive environment similar to a geological onshore CCS-site in the Northern German Basin (T = 60 °C, p = 1 - 100 bar, Stuttgart Aquifer, CO2-flow rate of 3 l/h, 700–8000 h exposure time). Corrosion kinetics and microstructures were characterized using specimens of heat treated 42CrMo4 (1.7225, casing) and soft annealed X46Cr13 (1.4034, tubing). KW - A. Low alloyed steel KW - A. Stainless steel KW - C. Pitting corrosion KW - C. Kinetic parameters KW - B. SEM PY - 2012 U6 - https://doi.org/10.1016/j.corsci.2012.08.041 SN - 0010-938X VL - 65 SP - 441 EP - 452 PB - Elsevier CY - Orlando, Fla. AN - OPUS4-27995 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Shokouhi, Parisa A1 - Zoëga, Andreas A1 - Wiggenhauser, Herbert A1 - Fischer, G. T1 - Surface wave velocity-stress relationship in uniaxially loaded concrete N2 - The sonic surface wave (or Rayleigh wave) velocity measured on prismatic concrete specimens under uniaxial compression was found to be highly stress-dependent. At low stress levels, the acoustoelastic effect and the closure of existing microcracks results in a gradual increase in surface wave velocities. At higher stress levels, concrete suffers irrecoverable damage: the existing microcracks widen and coalesce and new microcracks form. This progressive damage process leads first to the flattening and eventually the drop in the velocity-stress curves. Measurements on specimens undergoing several loading cycles revealed that the velocities show a stress-memory effect in good agreement with the Kaiser effect. Comparing the velocities measured during loading and unloading, the effects of stress and damage on the measured velocities could be differentiated. Moreover, the stress dependency of surface wave velocity proved to be direction-dependent. The velocity increases and decreases the most when measured parallel and perpendicular to the loading axis, respectively. KW - Acoustic emission KW - Acoustoelasticity KW - Microcracking KW - Surface waves KW - Velocity measurement PY - 2012 SN - 0889-325x VL - 109 IS - 2 SP - 141 EP - 148 PB - ACI CY - Farmington, Mich., USA AN - OPUS4-27999 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Beckmann, Jörg A1 - Fratzscher, Daniel A1 - von Chrzanowski, Lars A1 - Ewert, Uwe T1 - Zeitaufgelöste THz-Spektroskopie für technische und zivile Sicherheitsanwendungen N2 - Vortrag über Zeitaufgelöste THz-Spektroskopie für technische und zivile Sicherheitsanwendungen T2 - DACH-Jahrestagung 2012 CY - Graz, Austria DA - 17.09.2012 KW - THz Spektroskopie KW - Technische und zivile Sicherheit PY - 2012 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:b43-280013 SN - 978-3-940283-44-3 IS - DGZfP-BB 136 SP - Mi.1.C.4, 1 EP - 14 PB - Deutsche Gesellschaft für Zerstörungsfreie Prüfung e.V. (DGZfP) AN - OPUS4-28001 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Knaust, Christian A1 - Rogge, Andreas ED - Lönnermark, A. ED - Ingason, H. T1 - Prediction of the temperature evolution in a tunnel construction in case of fire, by coupling the temperature-dependent heat transfer mechanisms inside the structural components and at their surface T2 - 5th International Symposium on tunnel safety and security CY - New York, USA DA - 2012-03-14 KW - Fire KW - High tmeperature fire loads KW - Component temperatures KW - Wall temperatures KW - Concrete KW - High temperature behavior KW - Thermal properties KW - Computational Fluid Dynamics KW - CFD PY - 2012 SN - 978-91-87017-26-1 SN - 0284-5172 VL - 2 SP - 753 EP - 756 AN - OPUS4-28067 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Ruhl, Aki Sebastian A1 - Kranzmann, Axel T1 - Corrosion in supercritical CO2 by diffusion of flue gas acids and water N2 - Carbon capture and storage (CCS) includes processing of supercritical carbon dioxide (scCO2). The carbon dioxide (CO2) stemming from flue gases contains acid forming impurities, especially in the case of coal fired power plants. In the present work, the mobility and reactivity of acids in supercritical scCO2 was investigated. The corrosive attack of low alloyed carbon steel (material 1.0484) by water (H2O) alone in scCO2 was negligible. Nitric acid (HNO3) was very mobile and corrosive towards the carbon steel while sulfuric acid did not migrate through the scCO2 to react with the steel surface. Hydrochloric acid in scCO2 was very mobile and reactive towards both carbon steel and high alloyed test equipment. Gravimetric analyses revealed a severe material loss after corrosion in the presence of HNO3. Thickness measurements showed localized material losses. KW - Supercritical CO2 KW - Corrosion KW - Carbon steel KW - Carbon capture and storage KW - CCS KW - Flue gas acids PY - 2012 U6 - https://doi.org/10.1016/j.supflu.2012.04.015 SN - 0896-8446 VL - 68 SP - 81 EP - 86 PB - Elsevier CY - New York, NY [u.a.] AN - OPUS4-28054 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Paul, Andrea A1 - Riedel, Juliane A1 - Koch, Matthias T1 - Multivariate Datenanalyse von UV/VIS-Spektren zur Bestimmung der Photoisomere von Tearalenon T2 - 8. Kolloquium Prozessanalytik, BAM CY - Berlin, Germany DA - 2012-12-03 PY - 2012 AN - OPUS4-28096 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Kannengießer, Thomas T1 - Modern Visualization Methods for Materials Research in Welding - Plenary Lecture T2 - VISUAL-The International Symposium on Visualization in Joining & Welding Science through Advanced Measurements and Simulation CY - Osaka, Japan DA - 2012-11-28 PY - 2012 AN - OPUS4-28129 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Mente, Tobias T1 - Mesoskalensimulation zweiphasiger Gefüge unter Nutzung hochenergetischer Beugungsexperimente T2 - MDDK - Master-, Diplomanden-, Doktorandenkolloqium CY - Magdeburg, Germany DA - 2012-01-26 PY - 2012 AN - OPUS4-28131 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Raedel, Martina A1 - Bücker, Michael T1 - Historic Gold Mosaics: Composition and Deterioration T2 - IIC Congress, The Decorative: Conservation and the Applied Arts CY - Vienna, Austria DA - 2012-09-10 PY - 2012 AN - OPUS4-28196 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Pfennig, A. A1 - Wolf, Marcus A1 - Wiegand, Reiner A1 - Bork, Claus-Peter T1 - New in-situ measurement technique to determine corrosion fatigue in components and pipes under cyclic load N2 - In the field of water pipelines, geothermal energy production as well as carbon capture and storage technology (CCS) materials have to provide a high resistance to corrosion and mechanical stress. The combination of cyclic load and corrosive aqueous environment leads to corrosion fatigue of pipes and components (e.g. pumps) and thus inevitably to the reduction of the lifetime of these components. To estimate the reliability of components from adjusted in-situ-laboratory experiments a corrosion chamber was designed and tested with CO2 saturated corrosive aqueous media flowing at a steady rate. Unique feature of this special chamber is its installation directly onto the sample and thus providing flexible usability in almost every testing machine. This allows simultaneous mechanical loading of the sample, operation at temperatures up to 100 °C and exposure to fluid flow of corrosive liquids and gases. The lifetime reduction of AISI 420C (X46Cr13, 1.4034) is demonstrated at T=60 °C, geothermal brine: Stuttgart Aquifer flow rate: 9 l/h, CO2. S-N plots, micrographic-, phase-, fractographic- and surface analysis were applied to obtain sustainable information on the corrosion fatigue behavior. Maximum number of cycles (here 12.5 x 106 cycles to failure) is reached at σa =173 MPa. No typical fatigue strength exists and passive corrosion fatigue may be identified as failure cause. T2 - MWWD & IEMES 2012 CY - Budva, Montenegro DA - 22.10.2012 KW - Corrosion fatigue KW - Corrosion chamber KW - S-N-plots KW - Steel KW - In-situ experiment PY - 2012 SN - 978-9944-5566-6-8 SP - 1 EP - 8 AN - OPUS4-28569 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Maierhofer, Christiane A1 - Reischel, Mercedes A1 - Krankenhagen, Rainer A1 - Myrach, Philipp A1 - Röllig, Mathias A1 - Steinfurth, Henrik T1 - Anwendungsbreiche und Grenzen der Blitzthermografie - Entwicklung eines anwendungsnahen Standards T2 - DACH-Jahrestagung 2012 CY - Graz, Austria DA - 2012-09-17 KW - Blitzthermografie KW - CFK KW - Referenzprobekörper KW - Normung PY - 2012 SN - 978-3-940283-44-3 IS - DGZfP-BB 136 SP - Mi.2.C.1, 1 EP - 8 AN - OPUS4-28571 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Boehm, Rainer A1 - Brackrock, Daniel A1 - Montag, Hans-Joachim A1 - Brekow, Gerhard T1 - Matrixarrays zur bildgebenden Ultraschallprüfung am Beispiel 6 mm dicker CFK-Platten N2 - Faserverbundwerkstoffe wie kohlefaserverstärkte Kunststoffe CFK sind vergleichsweise schwer mit Ultraschall zu prüfen, weil die starke Dämpfung, der inhomogene Aufbau und die akustische Anisotropie die Wellenausbreitung behindern bzw. komplizieren. Die Folge ist, dass die Ansprüche an die Prüfung oft stark reduziert werden müssen. Die vorgestellte Prüftechnik nutzt die Möglichkeiten der räumlichen Fokussierung und des zweidimensionalen Winkelscans von Matrix Phased Array Prüfköpfen MPA in Kombination mit Echosignalüberlagerungsalgorithmen für eine substantielle Verbesserung der Auflösung und des Signal-Rausch-Verhältnisses. Sowohl bei der Ansteuerung des MPA als auch bei der Auswertung wird die Anisotropie des Werkstoffs berücksichtigt. Das MPA wird über die Oberfläche bewegt und an einer Anzahl von Messpunkten werden zweidimensionale Winkelscans durchgeführt. Das Ergebnis sind räumliche Echohöhenverteilungen, aus denen Schnittbilder oder auch Volumendarstellungen erzeugt werden können. Anhand von Messungen an CFK-Platten mit Flachbodenbohrungen KSR 1 und 2 sollen die Empfindlichkeit und das Auflösungsvermögen der Prüftechnik demonstriert werden. Weiterhin werden Untersuchungen an Impaktschäden gezeigt, die typischerweise bei Faserverbundwerkstoffen bei starken punktförmigen Belastungen auftreten. T2 - DACH-Jahrestagung 2012 CY - Graz, Austria DA - 17.09.2012 KW - Ultraschallprüfung KW - Matrix phased array KW - Bildgebung KW - CFK KW - Anisotropie PY - 2012 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:b43-285729 SN - 978-3-940283-44-3 IS - DGZfP-BB 136 SP - 1 EP - 9 PB - Deutsche Gesellschaft für Zerstörungsfreie Prüfung e.V. (DGZfP) AN - OPUS4-28572 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Gravenkamp, Hauke A1 - Prager, Jens A1 - Man, H. A1 - Song, Ch. A1 - Birk, C. T1 - Numerical computation of dispersion relations in three-dimensional waveguides T2 - Australian Conference on the Mechanics of Structures and Materials (ACMSM 22) CY - Sydney, Australia DA - 2012-12-11 PY - 2012 AN - OPUS4-28495 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Gravenkamp, Hauke A1 - Saputra, A. A1 - Birk, C. A1 - Song, Ch. T1 - Numerical modelling of Lamb waves in cracked plates using the scaled boundary finite element method T2 - Australian Conference on the Mechanics of Structures and Materials (ACMSM 22) CY - Sydney, Australia DA - 2012-12-11 PY - 2012 AN - OPUS4-28496 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Solomun, Tihomir A1 - Sturm, Heinz A1 - Kovalev, Alexander A1 - Wellhausen, Robert A1 - Seitz, H. T1 - Surface Biomimetics of osmotic adoption T2 - International Conference on Bioinspired and Biobased Chemistry & Materials CY - Nice, France DA - 2012-10-03 PY - 2012 AN - OPUS4-28486 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Pittner, Andreas A1 - Rethmeier, Michael T1 - Analysis of head and fluid flow phenomena of double-sided V-groove welds of high-strength low alloy steel T2 - 10th International Seminar "Numerical Analysis of Weldability" CY - Seggau-Graz, Austria DA - 2012-09-24 PY - 2012 AN - OPUS4-28684 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Bismarck, A. A1 - Carreyette, S. A1 - Fontana, Q.P.V. A1 - Greenhalgh, E.S. A1 - Jacobsson, P. A1 - Johansson, P. A1 - Marczewski, M.J. A1 - Kalinka, Gerhard A1 - Kucernak, A. A1 - Shaffer, M.S. A1 - Shirshova, N. A1 - Steinke, J.H.G. A1 - Wienrich, Malte T1 - Multifunctional epoxy resin for structural supercapacitors N2 - Polymer-based electrolytes based on commercially available epoxy resins were prepared through the addition of a liquid electrolyte, a solution of a lithium salt in an ionic liquid. The polymer monoliths were characterized using impedance spectroscopy, 3-point bending test, scanning electron microscopy (SEM) and nitrogen adsorption (BET). The balance of ionic conductivity and flexural modulus is crucially dependent on the relative proportions of epoxy resin to electrolyte. Also the effect of the liquid electrolyte on curing kinetics and processing was assessed by complex viscosity measurements and differential scanning calorimetry (DSC). Only one out of the three resins investigated exhibited a significant acceleration effect. T2 - ECCM15 - 15th European conference on composite materials CY - Venice, Italy DA - 2012-06-24 KW - Multifunctional epoxy KW - Polymer electrolyte KW - Morphology KW - Ionic liquid PY - 2012 SN - 978-88-88785-33-2 SP - 1 EP - 8(?) AN - OPUS4-28694 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Wienrich, Malte A1 - Kalinka, Gerhard A1 - Greenhalgh, E.S. A1 - Carreyette, S. A1 - Bistritz, Martina A1 - Shirshova, N. A1 - Houllé, M. A1 - Asp, L. E. A1 - Bismarck, A. A1 - Fontana, Q.P.V. T1 - Impact of ionic liquid on the mechanical performance of matrix polymer for fibre reinforced materials for energy storage N2 - For the concept of using structural materials such as carbon fibre reinforced plastics as energy storage devices, new matrix polymers are required. These polymers must provide ionic conductivity as well as adequate mechanical strength. In the EU-Project StorAGE this requirements are fulfilled by adding ionic liquid to commercial polymers. The mechanical properties of these mixtures materials were characterized by using a 3-point-bending device. In addition, single fibre pull test were performed in order to get information on the interfacial shear strength. Adding of ionic liquid has an impact on the mechanical performance of the materials. A decrease of the flexural strength and modulus of less than 10% of the value of the reference materials took part. The interfacial shear strength decreased to a value of around one third compare to the reference material. T2 - ECCM15 - 15th European conference on composite materials CY - Venice, Italy DA - 2012-06-24 KW - Multifunctional epoxy resin KW - Fibre-matrix adhesion KW - Single fibre pull-out test KW - Ionic liquid PY - 2012 SN - 978-88-88785-33-2 SP - 1 EP - 4(?) AN - OPUS4-28695 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Pittner, Andreas A1 - Rethmeier, Michael T1 - Potenzial der Schweißsimulation bei fügetechnischen Fragestellungen T2 - Treffen des DVS Beziksverband Berlin, BAM CY - Berlin, Germany DA - 2012-10-31 PY - 2012 AN - OPUS4-28678 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Pittner, Andreas A1 - Rethmeier, Michael T1 - Global Optimisation and Sensitivity Analysis Utilised For Welding Simulation T2 - 2nd International Symposium on Computer-Aided Welding Engineering CY - Jinan, China DA - 2012-08-23 PY - 2012 AN - OPUS4-28683 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Konersmann, Rainer T1 - Zur Abschätzung von Bauwerksschäden durch Flugzeugabstürze N2 - Die Mehrzahl der Flugzeugabstürze ereignet sich in Einflugschneisen. Aus diesem Grund wird die flugplatznahe Bebauung mit sensiblen Industrieanlagen oder Baulichkeiten mit einer hohen Bevölkerungsdichte besonders kritisch betrachtet. Außerhalb dieser Zonen scheint sich das Problem aufzulösen. Ein Überflugverbot für Bauwerke und Anlagen am Boden ist kein geeigneter Schutz, um gegen Flugzeugabstürze, die sich in großen Höhen ereignen, gewappnet zu sein. Niemand kann exakt berechnen, welche Regionen weniger oder stärker bei einem Absturz betroffen sind. Die Schadensfolgen lassen sich jedoch relativ gut ermitteln. Der Beitrag gibt einen Einblick in diese Problematik. KW - Risiko KW - Flugzeugabsturz KW - Triebwerksanprall KW - Berechnungsgrundlagen PY - 2012 SN - 2191-0073 VL - 2 IS - 1/2 SP - 36 EP - 42 PB - Springer-VDI-Verl. CY - Düsseldorf AN - OPUS4-25425 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Simon, Franz-Georg T1 - Materialeffizienz in Unternehmen T2 - Green Design - Innovationstreiber oder Modeerscheinung CY - Wuppertal, Germany DA - 2012-01-19 PY - 2012 AN - OPUS4-25426 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Vöse, Markus A1 - Fedelich, Bernard A1 - Owen, J. T1 - A simplified model for creep induced grain boundary cavitation validated by multiple cavity growth simulations N2 - Simulations of cavitation processes on a grain boundary under creep conditions have been carried out, taking into account nucleation, growth, coalescence and sintering of multiple cavities. Cavity growth rates have been calculated through a resolution procedure based on the use of holomorphic complex functions. Three dimensionless parameters have been identified that are responsible for the cavitation development. Parameter studies have been carried out in order to characterise the mechanisms that are responsible for the cavitation development. These studies have been used to develop a physically motivated, simplified model in order to describe the cavitation development of the simulations in terms of global state variables. The simplified model is able to reproduce the cavitation development for all considered combinations of the dimensionless parameters and allows the description of the thickening behaviour of a cavitating grain boundary. KW - Creep damage KW - Grain boundary diffusion KW - Cavitation KW - Simulation PY - 2012 U6 - https://doi.org/10.1016/j.commatsci.2012.01.033 SN - 0927-0256 VL - 58 SP - 201 EP - 213 PB - Elsevier CY - Amsterdam AN - OPUS4-25630 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Simon, Franz-Georg T1 - Abfalldeponien in der Zukunft: Schadstoffsenke oder Rohstoffquelle T2 - 51. Tutzing-Symposium Abfall - Hinterlassenschaft oder Ressourcenreservoir CY - Tutzing, Germany DA - 2012-04-22 PY - 2012 AN - OPUS4-25631 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Correia, A.M. A1 - Rodrigues, J.P.C. A1 - Korzen, Manfred T1 - Experimental research on the load-bearing capacity of partially encased steel columns under fire conditons N2 - The composite steel and concrete columns are known to have enhanced fire behaviour when compared with bare steel columns. However there are still aspects that must be clarified, as the influence of the building surrounding structure on the fire resistance of the columns. In this paper, the results of fire resistance tests on partially encased steel columns carried out with two different experimental systems are compared. In one of the experimental systems, the building surrounding structure is materialised by a steel restraining frame, and in the other is performed by the so-called substructuring method. Due to the concept of hybrid substructuring, the entire building is decomposed in two parts: one is represented by the building element under test, whereas the remaining building is simulated numerically in a computer. The main conclusion drawn from this work was that the surrounding structure has a major influence in the development of axial forces in the test columns. Moreover, it was observed that the higher the non-dimensional axial restraint ratio the lower the critical time of the columns. KW - Fire resistance KW - Thermal restraint KW - Composite steel-concrete columns KW - Substructuring method KW - Restraining frame PY - 2012 U6 - https://doi.org/10.1260/2040-2317.3.1.81 SN - 2040-2317 VL - 3 IS - 1 SP - 81 EP - 94 PB - Multi-Science Publ. Co. CY - Brentwood AN - OPUS4-25632 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Haase, A. A1 - Rott, S. A1 - Mantion, Alexandre A1 - Graf, P. A1 - Plendl, J. A1 - Thünemann, Andreas A1 - Meier, W.P. A1 - Taubert, A. A1 - Luch, A. A1 - Reiser, G T1 - Effects of silver nanoparticles on primary mixed neural cell cultures: uptake, oxidative stress and acute calcium responses N2 - In the body, nanoparticles can be systemically distributed and then may affect secondary target organs, such as the central nervous system (CNS). Putative adverse effects on the CNS are rarely investigated to date. Here, we used a mixed primary cell model consisting mainly of neurons and astrocytes and a minor proportion of oligodendrocytes to analyze the effects of well-characterized 20 and 40 nm silver nanoparticles (SNP). Similar gold nanoparticles served as control and proved inert for all endpoints tested. SNP induced a strong size-dependent cytotoxicity. Additionally, in the low concentration range (up to 10 µg/ml of SNP), the further differentiated cultures were more sensitive to SNP treatment. For detailed studies, we used low/medium dose concentrations (up to 20 µg/ml) and found strong oxidative stress responses. Reactive oxygen species (ROS) were detected along with the formation of protein carbonyls and the induction of heme oxygenase-1. We observed an acute calcium response, which clearly preceded oxidative stress responses. ROS formation was reduced by antioxidants, whereas the calcium response could not be alleviated by antioxidants. Finally, we looked into the responses of neurons and astrocytes separately. Astrocytes were much more vulnerable to SNP treatment compared with neurons. Consistently, SNP were mainly taken up by astrocytes and not by neurons. Immunofluorescence studies of mixed cell cultures indicated stronger effects on astrocyte morphology. Altogether, we can demonstrate strong effects of SNP associated with calcium dysregulation and ROS formation in primary neural cells, which were detectable already at moderate dosages. KW - Silver nanoparticles KW - Neurons KW - Oxidative stress KW - Protein carbonyls KW - Calcium KW - Reference material KW - Nanoparticle KW - Small-angle X-ray scattering KW - SAXS PY - 2012 U6 - https://doi.org/10.1093/toxsci/kfs003 SN - 1096-6080 SN - 1096-0929 VL - 126 IS - 2 SP - 457 EP - 468 PB - Oxford University Press CY - Oxford AN - OPUS4-25633 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Malaga, Katarina A1 - Lundahl, A. A1 - Müller, Urs T1 - Use of technical textiles to modify concrete surfaces KW - Concrete KW - Textile imprint KW - Nano KW - Hydrophobicity KW - Oleophobicity KW - Beton KW - Textilien KW - Oberflächen KW - Wasserabweisend PY - 2012 SN - 1864-7251 SN - 0947-4498 VL - 18 IS - 1 SP - 23 EP - 30 PB - Aedificatio Publ. CY - Freiburg AN - OPUS4-25635 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Zeynalov, Eldar A1 - Friedrich, Jörg Florian A1 - Hidde, Gundula A1 - Ibrahimov, H.J. A1 - Nasibova, G.G. T1 - 1Brominated carbon nanotubes as effective catalysts for petroleum hydrocarbons aerobic oxidation KW - Katalyse KW - Paraffinoxidation PY - 2012 SN - 0342-5622 VL - 38 IS - 1 SP - 45 EP - 48 PB - Urban-Verl. CY - Hamburg; Wien AN - OPUS4-25636 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Krause, Christina A1 - Yin, Huajie A1 - Schönhals, Andreas T1 - Molecular dynamics of a discotic liquid chrystal T2 - 76th Annual Meeting of the DPG and DPG Spring Meeting CY - Berlin, Germany DA - 2012-03-25 PY - 2012 AN - OPUS4-25637 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Tamura, T. A1 - Hosohata, S. A1 - Nakase, T. A1 - Kato, Sh. A1 - Scholz, Christian A1 - Woydt, Mathias T1 - High wear resistance DLC film under high pressure contact T2 - 12. Machine Design and Tribology Division Meeting, JSME CY - Ehime-ken, Japan DA - 2012-04-23 PY - 2012 AN - OPUS4-25638 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Ibrahimov, H.C. A1 - Friedrich, Jörg Florian A1 - Ismailov, E.H. A1 - Zeynalov, Eldar A1 - Aliyeva, A. Z. A1 - Seidov, M.I. A1 - Rustamov, M.I. T1 - Thermal and magnetic peculiarities of metal-containing carbon nano-phase formed in the reaction of fine-dispersed aluminium with dichlorethane in paraffin medium N2 - Electron magnetic resonance (EMR) spectroscopy, X-ray-fluorescent microscopy (XFM) and thermal analysis (TGA/DTA) are used to characterize the carbon nano-phase obtained in the reaction between fine-dispersed aluminium and dichlorethane in the liquid paraffin medium and its modified with Mn(II), Fe(III), Ni(II), Cu(II) chlorides forms were studied. It was shown that the solid nano-structured functionalized carbon systems containing metals possess specific magnetic and thermal properties. Key parameters of the process, influencing on the size and structure of the formed carbon nano-phase were determined. Results and regularities established in this work create presumably the certain basis for optimization of physical and chemical properties of similar systems. KW - Aluminium KW - Dichlorethane KW - Carbon nanostructure KW - Magnetic KW - Thermal properties PY - 2012 SN - 2161-6213 VL - 2 IS - 2 SP - 196 EP - 202 PB - David publishing CY - Libertyville, Illinois, USA AN - OPUS4-25639 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Varga, E. A1 - Glauner, T. A1 - Köppen, Robert A1 - Mayer, K. A1 - Sulyok, M. A1 - Schuhmacher, R. A1 - Krska, R. A1 - Berthiller, F. T1 - Stable isotope dilution assay for the accurate determination of mycotoxins in maize by UHPLC-MS/MS N2 - A fast, easy-to-handle and cost-effective analytical method for 11 mycotoxins currently regulated in maize and other cereal-based food products in Europe was developed and validated for maize. The method is based on two extraction steps using different acidified acetonitrile–water mixtures. Separation is achieved using ultrahigh-performance liquid chromatography (UHPLC) by a linear water–methanol gradient. After electrospray ionisation, tandem mass spectrometric detection is performed in dynamic multiple reaction monitoring mode. Since accurate mass spectrometric quantification is hampered by matrix effects, uniformly [13C]- labelled mycotoxins for each of the 11 compounds were added to the sample extracts prior to UHPLC-MS/MS analysis. Method performance parameters were obtained by spiking blank maize samples with mycotoxins before as well as after extraction on six levels in triplicates. The twofold extraction led to total recoveries of the extraction steps between 97%and 111% for all target analytes, including fumonisins. The [13C]- labelled internal standards efficiently compensated all matrix effects in electrospray ionisation, leading to apparent recoveries between 88% and 105% with reasonable additional costs. The relative standard deviations of the whole method were between 4% and 11% for all analytes. The trueness of the method was verified by the measurement of several maize test materials with well-characterized concentrations. In conclusion, the developed method is capable of determining all regulated mycotoxins in maize and presuming similar matrix effects and extraction recovery also in other cerealbased foods. KW - Mycotoxins KW - Stable isotope dilution assay KW - Multi-target analysis KW - Ultrahigh-performance liquid chromatography KW - Tandem mass spectrometry KW - Maize PY - 2012 U6 - https://doi.org/10.1007/s00216-012-5757-5 SN - 1618-2642 SN - 1618-2650 VL - 402 IS - 9 SP - 2675 EP - 2686 PB - Springer CY - Berlin AN - OPUS4-25640 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Adebahr-Lindner, Yvonne A1 - Eiben, Mario A1 - Farahbakhsh, Mahin T1 - Babylonische Kommunikation N2 - Nomenklaturen - Stark von einander abweichende Bezeichnungen chemischer Stoffe erschweren im Gefahrgut- und Gefahrstoffbereich die notwendige Kommunikation von Stoffidentitäten. PY - 2012 SN - 0016-5808 VL - 57 IS - 2 SP - 28 EP - 31 PB - Storck CY - Hamburg AN - OPUS4-25641 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Acikalin, Hatice Aydan T1 - Schutzkonzepte I - Grundlagen zur sicheren Durchführung chemischer Reaktionen T2 - DECHEMA-Weiterbidlungskurs "Sicherheit chemischer Reaktionen" CY - Berlin, Germany DA - 2012-03-26 PY - 2012 AN - OPUS4-25642 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Acikalin, Hatice Aydan T1 - Schutzkonzepte II - Druckentlastung und Rückhaltung von gefährlichen Stoffen aus Druckentlastungseinrichtungen T2 - DECHEMA-Weiterbildungskurs "Sicherheit chemischer Reaktionen" CY - Berlin, Germany DA - 2012-03-26 PY - 2012 AN - OPUS4-25643 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Dsouza, R.N. A1 - Hennig, Andreas A1 - Nau, W.M. T1 - Supramolecular tandem enzyme assays N2 - We conceptualize a novel approach towards enzyme assays based on the reversible and competitive binding of a fluorescent dye and the substrate as well as product of an enzymatic reaction to a macrocyclic host. This method was termed 'supramolecular tandem assay', and has been applied to inhibitor and activator screening, sensor array development, and enantiomeric excess determination of amino acids. The simple and rapid read-out by fluorescence allows their straightforward implementation into high-throughput screening. KW - Enzyme assays KW - Fluorescent dyes KW - Macrocycles KW - Molecular recognition KW - Supramolecular chemistry PY - 2012 U6 - https://doi.org/10.1002/chem.201103364 SN - 0947-6539 SN - 1521-3765 VL - 18 IS - 12 SP - 3444 EP - 3459 PB - Wiley-VCH Verl. CY - Weinheim AN - OPUS4-25644 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Recknagel, Sebastian A1 - Richter, Silke A1 - Reinholdsson, F. A1 - Pettersson, J. A1 - Gustavsson, I. T1 - An intercomparison study of analytical methods for the determination of magnesium in low alloy steel N2 - In an intercomparison study three low alloy steel materials were analyzed on their content of the trace element Mg, and five different analytical techniques were used, namely spark-OES, inductively coupled plasma optical emission spectrometry (ICP-OES), inductively coupled plasma time of flight mass spectrometry (ICP-TOFMS), inductively coupled plasma quadrupole mass spectrometry (ICP-QMS), and glow discharge mass spectrometry (GD-MS). Solid steel discs were used for analysis with spark-OES and GD-MS. For the analyses with ICP-OES, ICP-TOFMS, and ICP-QMS steel chips were wet-digested in aqua regia, and the wet-digestion was performed either in polypropylene tubes placed in a heating block or in Teflon pressure vessels using a microwave assisted system. The Mg concentrations obtained for the three steel materials were: 2.0, 2.8, and 10.3 µg g-1, respectively, and the spread in results was acceptable, giving RSD values in the range of 20–30%. KW - Mg KW - Steel KW - Spark-OES KW - ICP-OES KW - ICP-MS KW - GD-MS PY - 2012 U6 - https://doi.org/10.1002/srin.201100187 SN - 1611-3683 SN - 0177-4832 VL - 83 IS - 2 SP - 146 EP - 149 PB - Verl. Stahleisen CY - Düsseldorf AN - OPUS4-25647 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Krause, Benjamin Christoph A1 - Seifert, Stephan A1 - Panne, Ulrich A1 - Kneipp, Janina A1 - Weidner, Steffen T1 - Matrix-assisted laser desorption/ionization mass spectrometric investigation of pollen and their classification by multivariate statistics N2 - RATIONALE A fast and reliable online identification of pollen is not yet available. The identification of pollen is based mainly on the evaluation of morphological data obtained by microscopic methods. METHODS Matrix-assisted laser desorption/ionization mass spectrometry (MALDI-TOF MS) was applied to the analysis of extracts and milled pollen samples. The obtained MALDI data were explored for characteristic peak patterns which could be subjected to a multivariate statistical analysis. RESULTS Two sample preparation methods are presented, which require only minimal or no chemical extraction of the pollen. MALDI pollen spectra could be recorded showing various peak patterns. A multivariate statistics approach allowed the classification of pollen into clusters indicating similarities and differences between various species. CONCLUSIONS These results demonstrate the potential and the reliability of MALDI-TOF MS for the identification and, in combination with multivariate statistics, also for the classification of pollen. KW - MALDI TOF mass spectrometry KW - Pollen KW - Multivariate statistics PY - 2012 U6 - https://doi.org/10.1002/rcm.6202 SN - 0951-4198 SN - 1097-0231 VL - 26 IS - 9 SP - 1032 EP - 1038 PB - Wiley CY - Chichester AN - OPUS4-25648 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Witt, Jens A1 - Narbonneau, F. A1 - Schukar, Marcus A1 - Krebber, Katerina A1 - De Jonckheere, J. A1 - Jeanne, M. A1 - Kinet, D. A1 - Paquet, B. A1 - Depré, A. A1 - D´Angelo, L.T. A1 - Thiel, T. A1 - Logier, R. T1 - Medical textiles with embedded fiber optic sensors for monitoring of respiratory movement N2 - For patients under Magnetic Resonance Imaging (MRI) spontaneous respiration is constantly at risk of being impaired by anesthetic drugs or by upper airway obstruction. Therefore, continuous monitoring of the breathing activity is needed to assess adequate ventilation or to detect specific obstruction patterns. The paper describes three MRI compatible respiration sensors based on pure optical technologies developed within the EU FP6 project OFSETH. The sensors are based on fiber Bragg gratings, optical time-domain reflectometry and macrobending effects. The developed smart medical textiles can sense elongation up to 3% while maintaining the stretching properties of the textile substrates for patient's comfort. The OFSETH harness allows a continuous measurement of abdominal and thoracic respiration movement while all vitals organs are free for medical staff actions. The sensors were tested in MRI environment and on healthy adults. KW - Fiber optic sensor KW - Polymer optical fiber (POF) sensor KW - Respiratory sensor KW - Smart medical textile KW - MRI KW - Smart textile KW - Healthcare monitoring KW - Optical sensor KW - FBG PY - 2012 U6 - https://doi.org/10.1109/JSEN.2011.2158416 SN - 1530-437X SN - 1558-1748 VL - 12 IS - 1 SP - 246 EP - 254 CY - New York, NY, USA AN - OPUS4-25649 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Rabe, Torsten A1 - Güther, Wolfgang A1 - Oder, Gabriele A1 - Kaczmarek, Ch. T1 - Einfluss der Sinteratmosphäre auf die Festigkeit von Aluminiumoxid-Stahl-Fügeverbunden T2 - DKG-Jahrestagung und DKG-/DGM-Symposium Hocheistungskeramik CY - Nuremberg, Germany DA - 2012-03-05 PY - 2012 AN - OPUS4-25600 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Murtazin, Ayrat A1 - Groh, S. A1 - Niemax, Kay T1 - Investigation of sample introduction- and plasma-related matrix effects in inductively coupled plasma spectrometry applying single analyte droplet and particle injection N2 - Analyte atomization in an inductively coupled argon plasma is studied with spatial and temporal resolution by simultaneous side- and end-on emission spectroscopy. The samples are either introduced as single monodisperse microdroplets of analyte solution or in form of spherical nano- or microparticles with narrow size distributions embedded in microdroplets. While end-on spectroscopy provides quantitative information on the total atomization process during the transport through the ICP of a single injection event, side-on measurements deliver the spatial positions of the processes. It is shown that there are significant spatial shifts of the position of analyte atomization in dependence on injector gas flow, droplet size, analyte mass, and the mass of accompanying elements. These shifts have direct influence on the size of the analyte clouds at a particular position in the ICP, e.g., at the position of the sampler of a mass spectrometer in ICP-MS, and, therefore, on the detection efficiency of this technique. Furthermore, the dynamic processes of analyte ionization as well as element dependent diffusion were studied with spatial and temporal resolution. KW - Matrix effects KW - ICP KW - Microdroplets PY - 2012 U6 - https://doi.org/10.1016/j.sab.2011.12.003 SN - 0584-8547 SN - 0038-6987 VL - 67 SP - 3 EP - 16 PB - Elsevier CY - Amsterdam AN - OPUS4-25604 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Heinze, Christoph A1 - Pittner, Andreas A1 - Rethmeier, Michael T1 - Schweißeignungsuntersuchungen an hochfesten Feinkornbaustählen beim Einsatz modifizierter Sprühlichtbogenprozesse T2 - Sitzung der DVS-Arbeitsgruppe V2.4 CY - Munich, Germany DA - 2012-03-14 PY - 2012 AN - OPUS4-25607 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Zerbst, Uwe A1 - Heckel, Thomas T1 - Anmerkungen zur Auslegung und zum sicheren Betrieb von Radsatzwellen aus der Sicht von Betriebsfestigkeit und Bruchmechanik T2 - 7. Fachtagung ZfP im Eisenbahnwesen CY - Wittenberge, Germany DA - 2012-03-20 PY - 2012 AN - OPUS4-25608 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Wu, Guang Mei A1 - Schartel, Bernhard A1 - Kleemeier, M. A1 - Hartwig, A. T1 - Flammability of layered silicate epoxy nanocomposites combined with low-melting inorganic ceepree glass N2 - Tetraphenylphosphonium modified layered silicate epoxy nanocomposite (EP/TPPMMT) combined with low-melting silicate glass, Ceepree (CP) is investigated by thermal analysis, flammability tests and cone calorimeter at different heat fluxes. Adding CP and TPPMMT does not change the pyrolysis apart from increasing inorganic residue. The total heat evolved (THE) is changed insignificantly, as neither relevant additional carbonaceous charring nor flame inhibition occurs. However, flame retardancy is clearly observed due to an inorganic-carbonaceous surface protection layer. The peak heat released rate (PHRR) is reduced by around 32–42% when 5 wt% TPPMMT is added, and 51–63% when 10 wt% CP is added. PHRR reduction less than expected is observed when both additives are combined. The reduction is greater than that achieved by using TPPMMT but less than when only CP is used. The morphology of fire residue is investigated by scanning electron microscope on different length scales and turns out to be the key to understanding the efficiency of flame retardancy. The fire residue of EP/CP shows a layered structure, whereas separated columns limit the barrier properties for EP/5%TPPMMT on the micrometer scale. Columns dominating the fire residue structure of EP/5%TPPMMT/10%CP deteriorate the fire retardancy, whereas a more integral structure at the top of the residue causes the improvement over EP/5%TPPMMT. POLYM. ENG. SCI., 2012. © 2011 Society of Plastics Engineers KW - Flame retardancy KW - Nanocomposites KW - Low melting glasses KW - Epoxy resin KW - Ceepree PY - 2012 U6 - https://doi.org/10.1002/pen.22111 SN - 0032-3888 SN - 1548-2634 VL - 52 IS - 3 SP - 507 EP - 517 PB - Wiley CY - Hoboken, NY AN - OPUS4-25590 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Schulz, Wencke A1 - Nofz, Marianne A1 - Kranzmann, Axel A1 - Schorr, S. T1 - Alumina Coating on X20CrMoV12-1 against Oxidation and Carburization T2 - DMG-Sektionstreffen "Angewandte Mineralogie in Technik und Umwelt" (AMITU) und "Physik, Chemie und Kristallographie der Minerale" (PCKM) CY - Wolfersdorf, Germany DA - 2012-02-22 PY - 2012 AN - OPUS4-25593 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Liebner, Christian A1 - Fischer, J. A1 - Heinrich, Sebastian A1 - Lange, T. A1 - Hieronymus, Hartmut A1 - Klemm, E. T1 - Are micro reactors inherently safe? An investigation of gas phase explosion propagation limits on ethene mixtures N2 - A method for the determination of safety properties for micro reactors and micro structured components is presented. Micro structured reactors are not inherently safe but the range of safe operating conditions of micro reactors are extended since the explosion region is reduced. The λ/3 rule was demonstrated to be applicable to micro scale tubes for stoichiometric mixtures of ethane–oxygen and ethane–nitrous oxide. Furthermore first results from an investigation concerning detonation propagation through a micro reactor of non-ideal geometry are shown. Initial pressure investigated is ranging from low pressure up to 100 kPa. KW - Micro reactor KW - Explosion propagation limits KW - Chemical safety KW - Investigation method PY - 2012 U6 - https://doi.org/10.1016/j.psep.2011.08.006 SN - 0957-5820 SN - 1744-3598 VL - 90 IS - 2 SP - 77 EP - 82 PB - Elsevier CY - Amsterdam AN - OPUS4-25594 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Zerbst, Uwe T1 - Some Aspects of Safe-Life and Damage Tolerance of Railway Axles T2 - ESIS TC 24 Workshop of "Improving Lifetime and NDT" CY - Milan, Italy DA - 2012-03-30 PY - 2012 AN - OPUS4-25595 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Darlatt, Erik A1 - Traulsen, C.H.-H. A1 - Poppenberg, J. A1 - Richter, S. A1 - Kühn, Julius A1 - Schalley, C.A. A1 - Unger, Wolfgang T1 - Evidence of click and coordination reactions on a self-assembled monolayer by synchrotron radiation based XPS and NEXAFS N2 - An ethynylterpyridine was 'clicked' to an azide-terminated self-assembled monolayer on gold and characterized by synchrotron radiation based surface analysis as NEXAFS and XPS. The detection of azide and terpyridine signatures confirmed a partial click reaction at room temperature. The absence of the azides after reaction at 50 °C indicates an almost complete conversion. For the latter case successful Pd(II) coordination has been proven. The Au–S interface of the SAMs has been characterized by S 1s and S 2p XPS. KW - Synchrotron radiation XPS KW - NEXAFS spectroscopy KW - Surface click chemistry KW - Self-assembled monolayer KW - HAXPES KW - XANES PY - 2012 U6 - https://doi.org/10.1016/j.elspec.2012.02.004 SN - 0368-2048 SN - 1873-2526 VL - 185 IS - 3-4 SP - 85 EP - 89 PB - Elsevier CY - Amsterdam AN - OPUS4-25596 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Klimakow, Maria A1 - Klobes, Peter A1 - Rademann, K. A1 - Emmerling, Franziska T1 - Characterization of mechanochemically synthesized MOFs N2 - The compound MOF-14 (Cu3(BTB)2, BTB = 4,4',4''-benzenetribenzoate) was synthesized by ball milling and characterized by powder X-ray diffraction (XRD). The raw material was activated using an efficient single washing step to ensure a free pore access. Nitrogen adsorption measurements were carried out to determine the specific areas of the samples before and after activation. To interpret the activation process in terms of blocking effects in the micropore channels, NLDFT evaluations (Nonlocal Density Functional Theory) of the MOF-14 nitrogen isotherms were carried out. In connection with the appearance of additional hysteresis loops in the nitrogen isotherms, calculations of the mesopore size distribution were performed using the method of Barret, Joyner, and Halenda (BJH). The results are compared to those of a structurally analogue MOF, namely HKUST-1 (Cu3(BTC)2, BTC = 1,3,5-benzenetricarboxylate). This comparison showed notable differences regarding the impact of the activation step on the formation of mesopores and their size distribution. KW - Metal-organic frameworks KW - Mechanochemistry KW - Gas adsorption KW - Specific surface area KW - MOF-14 PY - 2012 U6 - https://doi.org/10.1016/j.micromeso.2011.11.039 SN - 1387-1811 SN - 1873-3093 VL - 154 SP - 113 EP - 118 PB - Elsevier CY - Amsterdam AN - OPUS4-25597 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Kupsch, Andreas A1 - Lange, Axel A1 - Hentschel, Manfred P. A1 - Müller, Bernd R. T1 - True absorption reference CT - Limits, pitfalls and potentials of DIRECTT T2 - Seminar am Institut für Angewandte Materialforschung, HZB CY - Berlin, Germany DA - 2012-03-19 PY - 2012 AN - OPUS4-25621 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Schenk, Gottfried A1 - Brackrock, Daniel A1 - Dohse, Elmar A1 - Ploigt, Roy A1 - Deutsch, W. T1 - Neuartige automatisierte Stangenprüfung mit Ultraschall-Gruppenstrahlern N2 - Wie erkennt man Risse oder Einschlüsse in Stabstahl, bevor daraus beispielsweise eine Automobil-Antriebswelle entsteht? Halbzeugprodukte werden vor der Weiterverarbeitung zerstörungsfrei auf Fehlerfreiheit geprüft, denn nicht erkannte Schäden können teure Rückrufaktionen zur Folge haben. Dieser Beitrag stellt ein Verfahren vor, mit dem die bisherige konventionelle Ultraschallprüfung durch die Gruppenstrahlertechnik ersetzt wird und die Prüfqualität bei gleichzeitiger Beschleunigung des Prüfvorgangs signifikant erhöht werden kann. KW - Automatisierte Prüfung von Rundstangen KW - Ultraschall-Gruppenstrahlertechnik KW - Modellrechnung KW - Viertelschalenarray KW - Aufbau und Erprobung einer automatisierten Anlage PY - 2012 SN - 0025-5300 VL - 54 IS - 3 SP - 200 EP - 205 PB - Hanser CY - München AN - OPUS4-25622 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Brauser, Stephan A1 - Schwenk, Christopher A1 - Rethmeier, Michael A1 - Noack, T. A1 - Jüttner, S. T1 - Einfluss von schweißbedingten Rissen auf die Schwingfestigkeit von Widerstandspunktschweißverbindungen aus hochfestem austenitischen Stahl N2 - Unter den rauen Bedingungen in der Automobilkarosseriefertigung lassen sich schweißbedingte Imperfektionen wie Risse beim Widerstandspunktschweißen von hochfesten Stählen nicht immer vermeiden. Dabei ist der Einfluss solcher Risse auf die Schwingfestigkeit insbesondere von modernen hochfesten austenitischen Stählen derzeit nicht hinreichend bekannt. Im Rahmen dieser Arbeit wurde daher der Einfluss von Schweißrissen verschiedener Lage und Ausbildung untersucht. Dabei konnte durch die Analyse der normierten Steifigkeitsverläufe von Proben sowie durch die Gegenüberstellung der Versagensschwingspielzahlen nachgewiesen werden, dass die spritzerfrei erzeugten Oberflächenrisse im Zentrum, im Übergangsbereich sowie im Randbereich der Schweißlinse keinen negativen Einfluss auf die Schwingfestigkeit des hier untersuchten hochfesten austenitischen Werkstoffs haben. Proben, die mit Schweißspritzern hergestellt wurden und Risse im Randbereich aufweisen, zeigen deutliche höhere Versagensschwingspielzahlen als rissfreie Referenzproben. ---------------------------------------------------------------------------------------------------------------------------------------------- In the rough conditions in the fabrication of automobile bodies, it is not always possible to avoid welding-induced imperfections such as cracks during the resistance spot welding of highstrength steels. In this respect, the influence of such cracks on the fatigue strength particularly of modern high-strength austenitic steels is not sufficiently well-known at present. The influence of welding cracks with various positions and formations was therefore investigated within the framework of this paper. In this case, the analysis of the standardised stiffness courses of specimens and the comparison of the numbers of failure stress cycles served to prove that the surface cracks produced without any spatter in the centre, interfacial region and peripheral region of the weld nugget do not have any negative influence on the fatigue strength of the high-strength austenitic material investigated here. Specimens which were manufactured with welding spatter and exhibit cracks in the peripheral region show considerably higher numbers of failure stress cycles than crack-free reference specimens. KW - Festigkeit KW - Hochfester Stahl KW - Rissbildung KW - Widerstandspressschweißen KW - Werkstofffragen KW - Fahrzeugbau PY - 2012 SN - 0036-7184 VL - 64 IS - 1-2 SP - 28 EP - 31 PB - Verl. für Schweißen u. Verwandte Verfahren, DVS-Verl. CY - Düsseldorf AN - OPUS4-25623 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Panne, Ulrich T1 - Against all odds - Analytical Sciences for real-world applications T2 - Fresenius-Lecture CY - Giessen, Germany DA - 2012-07-03 PY - 2012 AN - OPUS4-25624 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Knaust, Christian A1 - Rogge, Andreas T1 - Prediction of the temperature evolution in a tunnel construction in case of fire, by coupling the temperature-dependent heat transfer mechanisms inside the structural components at their surface T2 - 5th International Symposium on Tunnel Safety and Security CY - New York City, NY, USA DA - 2012-03-14 PY - 2012 AN - OPUS4-25626 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Wachtendorf, Volker A1 - Geburtig, Anja T1 - Arrhenius-Ansatz zur Lebensdauervorhersage aus künstlichen Bewitterungsversuchen T2 - 41. Jahrestagung der GUS 2012 - Umwelteinflüsse erfassen, simulieren, bewerten CY - Stutensee, Germany DA - 2012-03-14 PY - 2012 AN - OPUS4-25627 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Denkler, Tilman T1 - ISO/IEC FDIS 17065:2012(E) Conformity assessment - Requirements for bodies certifying products, processes and services T2 - DAkkS-Begutachterschulung Block E (interne/externe Systembegutachter der Abteilung 4) CY - Berlin, Germany DA - 2012-03-16 PY - 2012 AN - OPUS4-25628 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Heinze, Christoph A1 - Schwenk, Christopher A1 - Rethmeier, Michael T1 - Numerical calculation of residual stress development of multi-pass gas metal arc welding N2 - In various applications, welding-induced residual stresses have a substantial impact on the integrity of welded constructions. Tensile residual stress can promote stress-corrosion cracking, brittle fracture, and reduces the fatigue life in service, as well as influences component design due to critical stress concentrations within the component. In the present paper, a six bead multi-pass gas metal arc weld of 20 mm thick structural steel S355J2+N is experimentally and numerically investigated. The studies include transient 2D and 3D numerical calculations which consider temperature-dependent material properties, phase transformations, 'thermal' tempering, transformation plasticity, volume change due to phase transformation, an elastic–plastic material model, and isotropic strain hardening. The experimentally determined and calculated residual stresses are in a good agreement. Furthermore, the influence of the preheat and interpass temperature on welding-induced residual stresses is shown in the present investigation. KW - Welding simulation KW - Gas metal arc welding KW - Welding-induced residual stress KW - Multi-pass welding KW - Sensitivity analysis PY - 2012 U6 - https://doi.org/10.1016/j.jcsr.2011.08.011 SN - 0143-974x VL - 72 SP - 12 EP - 19 PB - Elsevier CY - Oxford AN - OPUS4-25629 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Rübner, Katrin A1 - Schnell, A. A1 - Müller, A. A1 - Ludwig, H.-M. T1 - Mineralische Bauabfälle als Rohstoff für die Herstellung leichter Gesteinskörnungen T2 - Berliner Recycling- und Rohstoffkonferenz CY - Berlin, Germany DA - 2012-03-26 PY - 2012 AN - OPUS4-25650 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Schulte, Petra T1 - Physikalische Gefahren: Einstufungskriterien, Prüfmethoden, Vergleich mit Transportvorschriften T2 - Volkswagen Coaching Seminar: GHS Einstufung & Kennzeichnung (Basis) CY - Wolfsburg, Germany DA - 2012-03-21 PY - 2012 AN - OPUS4-25652 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Schmidt, Martin A1 - Lüth, Peter T1 - Interlaboratory test 2010/11 "EN 15188:2007 - Self-ignition temperature": Ergebnisse Ringversuch Teilschritt 1 T2 - ProcessNet AA "Sicherheitstechnische Kenngrößen" CY - Frankfurt am Main, Germany DA - 2012-03-21 PY - 2012 AN - OPUS4-25653 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Fahmy, A. A1 - Mix, Renate A1 - Schönhals, Andreas A1 - Friedrich, Jörg Florian T1 - Structure of plasma-deposited copolymer films prepared from acrylic acid and styrene: Part I dependence on the duty cycle N2 - Copolymers of acrylic acid and styrene (AA/S) were prepared by pulsed plasma deposition and their structures were studied in dependence on the duty cycle (DC) for a fixed composition of 1:1. As a result, low values of DC doses preserve the structure of monomers in the plasma deposited polymers while high DC leads to a higher degree of fragmentation and a loss in regular structure. Regarding plasma copolymerisation as a feasible method to finish surfaces with a definite number of functional groups it is necessary to characterize both, the chemical nature and the physical properties of the deposited layer. Therefore, a combination of different methods was employed for the characterization of thin plasma copolymer films (FTIR, dielectric spectroscopy, differential scanning calorimetry, X-ray photoelectron spectroscopy (XPS)). Special attention was paid on the unambiguous identification of COOH groups at the surface after derivatization with trifluoroethanol by XPS and in the volume by FTIR. The glass transition temperature of the copolymer system is lower than that for the both plasma deposited homopolymers and increases with the DC in difference to plasma deposited poly(acrylic acid). The dielectric measurements showed that the plasma deposited films were not thermally stable and underwent an undesired post-plasma chemical reaction. The results obtained by dielectric spectroscopy are discussed in detail in comparison with the data from FTIR and XPS measurements. KW - Plasmapolymerisation KW - Copolymerisation KW - Acrylic acid–styrene copolymer KW - Dynamic mobility KW - Plasma copolymerisation KW - Surface functionalization KW - Thin film properties PY - 2012 U6 - https://doi.org/10.1002/ppap.201100117 SN - 1612-8850 SN - 1612-8869 VL - 9 IS - 3 SP - 273 EP - 284 PB - Wiley-VCH Verl. CY - Weinheim AN - OPUS4-25654 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Gluth, Gregor A1 - Zhang, W. A1 - Gaggl, M. A1 - Hillemeier, B. A1 - Behrendt, F. T1 - Multicomponent gas diffusion in hardened cement paste at temperatures up to 350 °C N2 - Diffusional gas transport of a H2/CO2 mixture versus N2 in the pore system of hardened cement pastes was studied at four temperatures up to 350 °C in a Wicke-Kallenbach cell. The pastes possessed separation factors αH2,CO2 from 1.42 to 3.43, i.e. the diffusion of hydrogen took place considerably faster than the diffusion of carbon dioxide. The separation factors depended on the threshold radii of the pastes, smaller threshold radii leading to higher separation factors. The Knudsen numbers of the controlling constrictions of the pore system and the temperature dependence of the effective diffusion coefficients of the gases show that gas transport in these constrictions takes place in the transient regime between Knudsen diffusion and bulk diffusion, smaller constriction widths leading to predominating Knudsen diffusion. It is therefore possible to use cement paste membranes to separate gas components of low molecular weight from higher weight components. KW - Microstructure (B) KW - Mercury porosimetry (B) KW - Diffusion (C) KW - Cement paste (D) KW - Gas separation KW - Pore structure PY - 2012 U6 - https://doi.org/10.1016/j.cemconres.2012.02.001 SN - 0008-8846 SN - 1873-3948 VL - 42 IS - 5 SP - 656 EP - 664 PB - Pergamon Press CY - New York, NY AN - OPUS4-25655 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Martínez, N.A. A1 - Pereira, S.V. A1 - Bertolino, F.A. A1 - Schneider, Rudolf A1 - Messina, G.A. A1 - Raba, J. T1 - Electrochemical detection of a powerful estrogenic endocrine disruptor: ethylestradiol in water samples through bioseparation procedure N2 - The synthetic estrogen ethinylestradiol (EE2) is an active component of oral contraceptives (OCs), considered as an endocrine disrupting compound (EDC). It is excreted from humans and released via sewage treatment plant effluents into aquatic environments. EDCs are any environmental pollutant chemical that, once incorporated into an organism, affects the hormonal balance of various species including humans. Its presence in the environment is becoming of great importance in water quality. This paper describes the development of an accurate, sensitive and selective method for capture, preconcentration and determination of EE2 present in water samples using: magnetic particles (MPs) as bioaffinity support for the capture and preconcentration of EE2 and a glassy carbon electrode modified with multi-walled carbon nanotubes (MWCNTs/GCE) as detection system. The capture procedure was based on the principle of immunoaffinity, the EE2 being extracted from the sample using the anti-EE2 antibodies (anti-EE2 Ab) which were previously immobilized on MPs. Subsequently the analyte desorption was done employing a sulfuric acid solution and the determination of the EE2 in the pre-concentrated solution was carried out by square wave voltammetry (SWV). This method can be used to determine EE2 in the range of 0.035–70 ng L-1 with a detection limit (LOD) of 0.01 ng L-1 and R.S.D. < 4.20%. The proposed method has been successfully applied to the determination of EE2 in water samples and it has promising analytical applications for the direct determination of EE2 at trace levels. KW - Magnetic particles KW - Bioseparation KW - Ethinylestradiol KW - Electrochemistry KW - Immunoassay KW - Elektrochemischer Sensor KW - Endokrine Disruptoren KW - Hormone KW - Ethinylestradiol KW - EE2 KW - Östrogene PY - 2012 U6 - https://doi.org/10.1016/j.aca.2012.02.033 SN - 0003-2670 SN - 1873-4324 SN - 0378-4304 VL - 723 SP - 27 EP - 32 PB - Elsevier CY - Amsterdam AN - OPUS4-25656 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Dörfel, Ilona A1 - Rooch, Heidemarie A1 - Österle, Werner T1 - Microstructural differences between two Zr(C,N) coatings revealed by analytical transmission electron microscopy N2 - The microstructures of two samples of a Zr(C,N) coating on steel, which unexpectedly differed in their tribological properties, were investigated by analytical transmission electron microscopy. The samples were produced by a cathodic arc evaporation process in two commercial coating devices under similar coating conditions with the exception of the number of Zr targets. The source of the differing tribological properties of the samples was detected by analytical transmission electron microscopy (TEM) methods energy-dispersive X-ray spectroscopy (EDX), energy filtering TEM (EFTEM), electron diffraction, high resolution electron microscopy, and high angel annular dark field. The TEM preparation and the results of the TEM investigations are shown in detail. The origin of the unexpected behavior was determined to be a nano-scale multilayer structure that existed only in the tribologically superior specimen. EDX and EFTEM investigations indicated enrichment in oxygen at the interface between coating and steel substrate in the tribologically inferior sample. Findings of the microstructural configuration were obtained by taking a closer look at the structure and comparing the results of the several analytical TEM techniques. This allows the allocation of the concentration fluctuations in N, C, and Zr to the two thickness fractions of the nano multilayers and a local correlation of the identified minority phase Zr3(C,N)4 to the higher N content in the narrower type of the multilayer fraction of the sample with the excellent tribological properties. The minority phase Zr3(C,N)4 is randomly distributed in the sample with the defective tribological properties. Coating conditions are not topic of this work, but after discussion of the TEM results, the fact that one of the coating devices worked with one Zr target and the other one with two, could be identified as cause for the formation of the nano multilayer structure in the sample with the superior tribological properties. KW - Analytical transmission electron microscopy KW - Tribological coatings KW - Multilayers KW - Analytical TEM KW - Coatings KW - Nano-multilayer PY - 2012 U6 - https://doi.org/10.1016/j.tsf.2012.02.051 SN - 0040-6090 VL - 520 IS - 13 SP - 4275 EP - 4281 PB - Elsevier CY - Amsterdam AN - OPUS4-25657 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Kasparek, Eva Maria A1 - Völzke, Holger A1 - Scheidemann, Robert A1 - Zencker, Uwe T1 - Numerical and Experimental Investigations of Polyurethane Foam for Use as Cask Impact Limiter in Accidental Drop Scenarios T2 - Waste Management Symposia 2012 CY - Phoenix, AZ, USA DA - 2012-02-26 PY - 2012 AN - OPUS4-25658 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Probst, Ulrich A1 - Schulz, Sebastian A1 - Denecke, Felix A1 - Wolff, Dietmar T1 - Plastische Deformation von Federkern-Metalldichtungen in Abhängigkeit von Temperatur und Zeit T2 - 3. RAM-Behältersicherheitstage 2012, BAM CY - Berlin, Germany DA - 2012-03-22 PY - 2012 AN - OPUS4-25659 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Wolff, Dietmar T1 - Nachweisstrategien zur Behältersicherheit unter Berücksichtigung von Alterungseffekten und Störfallszenarien T2 - 3. RAM-Behältersicherheitstage 2012, BAM CY - Berlin, Germany DA - 2012-03-22 PY - 2012 AN - OPUS4-25660 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Jaunich, Matthias A1 - Schulz, Sebastian A1 - Stark, Wolfgang A1 - Wolff, Dietmar T1 - Characterization of the low temperature behaviour of rubber sealing materials T2 - 3. RAM-Behältersicherheitstage 2012, BAM CY - Berlin, Germany DA - 2012-03-22 PY - 2012 AN - OPUS4-25661 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Lischka, Susanne A1 - Piechotta, Christian A1 - Körte, F. T1 - Arsenobetainanalytik unter Einsatz eines 13C-markierten Kalibrierstandard für Elektrospray-Massenspektrometrie T2 - Doktorandenseminar des AK Separation Science der GDCh CY - Hohenroda, Germany DA - 2012-01-08 PY - 2012 AN - OPUS4-25662 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Nehls, Irene A1 - Mönch, Bettina A1 - Jung, Christian A1 - Becker, Roland T1 - EtG in Haaren - Biomarker für den Alkoholkonsum T2 - Multiparameteranalytik, Innovationsforum CY - Senftenberg, Germany DA - 2012-03-16 PY - 2012 AN - OPUS4-25663 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Mönch, Bettina A1 - Jung, Christian A1 - Becker, Roland A1 - Nehls, Irene T1 - EtG in hair - a marker for classifying the alcohol consumption T2 - 2. Berliner Chemie Symposium CY - Berlin, Germany DA - 2012-04-03 PY - 2012 AN - OPUS4-25664 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Werner, Jan T1 - Gefahrguttransport im Schienengüterverkehr: Gefahrgutumschließung und -transport in loser Schüttung: BK-Container als Bindeglied zwischen den Verkehrsträgern unter besonderer Berücksichtigung der Bauvorschriften für BK-Container T2 - Moderner Schienengüterverkehr 2012 und intermodaler Verkehr: Herausforderung für den Güterverkehrssektor: CY - Berlin, Germany DA - 2012-03-29 PY - 2012 AN - OPUS4-25667 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Koch, Matthias A1 - Köppen, Robert T1 - Referenzmaterialien für die Umwelt- und Lebensmittelanalytik T2 - Gemeinsame Arbeitstagung 2012 der Lebensmittelchemischen Gesellschaft der GDCh (Regionalverbände Südost und Nordost) CY - Jena, Germany DA - 2012-03-29 PY - 2012 AN - OPUS4-25668 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Schenk, Jonas A1 - Emmerling, Franziska A1 - Kneipp, Janina A1 - Panne, Ulrich A1 - Buurman, Merwe T1 - Simultane Ramen und UV/Vis-Spektroskopie an levitierten Tropfen als Mikroreaktoren T2 - 6. Doktorandenseminar 2012 der GDCh CY - Berlin, Germany DA - 2012-02-26 PY - 2012 N1 - Geburtsname von Buurman, Merwe: Albrecht, M. - Birth name of Buurman, Merwe: Albrecht, M. AN - OPUS4-25669 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Dittrich, Bettina A1 - Schartel, Bernhard A1 - Meyer-Plath, Asmus A1 - Petrov, Sergej A1 - Mach, Reinhard A1 - Hofmann, D. A1 - Tölle, F. A1 - Wartig, K.-A. A1 - Mülhaupt, R. T1 - Born in Fire to Kill Fire T2 - Makromolekulares Kolloquium Freiburg CY - Freiburg, Germany DA - 2012-02-23 PY - 2012 AN - OPUS4-25610 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Teteris, Gundars A1 - Böhning, Martin A1 - Braun, Ulrike A1 - Stark, Wolfgang T1 - Möglichkeiten der Reaktionskontrolle von Epoxidharzen für die Compositfertigung mit Thermoanalyse, Rheologie, Dynamisch mechanischer Analyse und IR-Spektroskopie T2 - Wildauer Duromertagung CY - Wildau, Germany DA - 2012-03-01 PY - 2012 AN - OPUS4-25611 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Schartel, Bernhard T1 - Thin fire protection coatings: Is there any alternative to intumescence? T2 - European coatings conference: Fire redardant coatings V CY - Berlin, Germany DA - 2012-03-13 PY - 2012 AN - OPUS4-25612 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Schartel, Bernhard A1 - Meyer-Plath, Asmus A1 - Dittrich, Bettina A1 - Petrov, Sergej A1 - Mülhaupt, R. A1 - Friedrich, C. A1 - Moseler, M. A1 - Hofmann, D. A1 - Wartig, K.-A. A1 - Tölle, F. A1 - Beckert, F. A1 - Schopp, S. A1 - Ratzsch, K. A1 - Mohamed, M. A1 - Walter, M. A1 - Kailer, A. A1 - Riedinger, B. A1 - Altstädt, V. A1 - Kerling, S. T1 - FUNgraphen - Vorstellung der Forschungsziele T2 - 4. Jahrestagung inno.CNT CY - Bayreuth, Germany DA - 2012-01-30 PY - 2012 AN - OPUS4-25613 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Skrotzki, Birgit A1 - Kühn, Hans-Joachim A1 - Olbricht, Jürgen T1 - Thermomechanical Fatigue: History, Recent Developments and Future Trends T2 - XXIX Encurentro del Grupo Espanol de Fractura CY - Bilbao, Spain DA - 2012-03-21 PY - 2012 AN - OPUS4-25614 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Skrotzki, Birgit A1 - Kühn, Hans-Joachim A1 - Olbricht, Jürgen T1 - Standards and Procedures for Isothermal and Thermomechanical Fatigue Characterization T2 - Jornada sobre el analisis de la fatiga de componentes metalicos a cargas mecanicas y termicas CY - Bilbao, Spain DA - 2012-03-19 PY - 2012 AN - OPUS4-25615 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - von der Ehe, Kerstin A1 - Wolff, Dietmar T1 - Beständigkeit von (U)HMW-PE unter dem Einfluss von Gammastrahlung T2 - 3. RAM-Behältersicherheitstage, BAM CY - Berlin, Germany DA - 2012-03-22 PY - 2012 AN - OPUS4-25616 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Krüger, Oliver T1 - Methods for the risk assessment of contaminated soils T2 - MINILUBES Training Network CY - Gdansk, Poland DA - 2012-04-17 PY - 2012 AN - OPUS4-25617 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Schönhals, Andreas T1 - Polymer Based Nanocomposites - Interplay between Interfacial and Bulk Effects - T2 - Colloquium University Halle CY - Halle (Saale), Germany DA - 2012-02-07 PY - 2012 AN - OPUS4-25618 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Schönhals, Andreas A1 - Krause, Christina A1 - Frick, B. A1 - Zorn, R. T1 - Neutron Scattering on Discotic Liquid Chrystals in the Bulk and in the Nanoconfined State T2 - Frühjahrstagung der DPG CY - Berlin, Germany DA - 2012-03-26 PY - 2012 AN - OPUS4-25619 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Schenk, Jonas A1 - Panne, Ulrich A1 - Buurman, Merwe T1 - Levitated Ionic Liquids as Containerless Microreactors T2 - 111. Hauptversammlung der Dt. Bunsengesellschaft für Physikalische Chemie e.V. CY - Leipzig, Germany DA - 2012-05-17 PY - 2012 N1 - Geburtsname von Buurman, Merwe: Albrecht, M. - Birth name of Buurman, Merwe: Albrecht, M. AN - OPUS4-25670 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Cuéllar, Pablo T1 - Nuevos aspectos para el diseno estructural de generadores eólicos offshore en el Mar del Norte T2 - Workshop Fortnight of the Engineering (Quincena de la Ingenieria), Universidad de Cadiz UCA CY - Cadiz, Spain DA - 2012-03-20 PY - 2012 AN - OPUS4-25672 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Goedecke, Thomas T1 - Vorstellung des Ladungssicherungs-Informations-Systems (LIS) der BAM T2 - Ladungssicherungs- und Gefahrguttag Mitteldeutschland (VCI/GBK) CY - Leuna, Germany DA - 2012-03-07 PY - 2012 AN - OPUS4-25673 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Gnutzmann, Tanja A1 - Klimakow, Maria A1 - Rademann, K. A1 - Emmerling, Franziska T1 - Time-resolved investigation of crystallization processes T2 - Berliner Chemie Symposium CY - Berlin, Germany DA - 2012-04-03 PY - 2012 AN - OPUS4-25674 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Gnutzmann, Tanja A1 - Klimakow, Maria A1 - Rademann, K. A1 - Emmerling, Franziska T1 - Time-resolved investigation of crystallization processes T2 - SPP in-situ Workshop CY - Wismar, Germany DA - 2012-03-28 PY - 2012 AN - OPUS4-25675 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Gnutzmann, Tanja A1 - Klimakow, Maria A1 - Rademann, K. A1 - Emmerling, Franziska T1 - Time-resolved investigation of crystallization processes T2 - DGK Jahrestagung 2012 CY - Munich, Germany DA - 2012-03-12 PY - 2012 AN - OPUS4-25676 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Gnutzmann, Tanja A1 - Klimakow, Maria A1 - Rademann, K. A1 - Emmerling, Franziska T1 - Time-resolved investigation of crystallization processes T2 - SMI Symposium CY - Bochum, Germany DA - 2012-03-26 PY - 2012 AN - OPUS4-25677 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Pecher, Heike Susanne A1 - Zimathies, Annett A1 - Weller, Michael G. T1 - Epoxy-based monolith as support for affinity chromatography T2 - 2. Berliner Chemie Symposium CY - Berlin, Germany DA - 2012-04-03 PY - 2012 AN - OPUS4-25678 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Darlatt, Erik A1 - Traulsen, C. H.-H. A1 - Poppenberg, J. A1 - Richter, S. A1 - Schalley, C. A. A1 - Unger, Wolfgang T1 - Evidence of click, coordination and side reactions on a self-assenbled monolayer by synchrotron radiation based XPS and NEXAFS T2 - 2. Berliner Chemie Symposium CY - Berlin, Germany DA - 2012-04-03 PY - 2012 AN - OPUS4-25679 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Würth, Christian A1 - González, M.G. A1 - Niessner, R. A1 - Panne, Ulrich A1 - Haisch, C. A1 - Resch-Genger, Ute T1 - Determination of the absolute fluorescence quantum yield of rhodamine 6G with optical and photoacoustic methods - providing the basis for fluorescence quantum yield standards N2 - To establish the methodical basis for the development and certification of fluorescence quantum yield standards, we determined the fluorescence quantum yield Φf of rhodamine 6G (R6G) with two absolute methods with complementary measurement principles, here optical spectroscopy using an integrating sphere setup and pulsed laser photoacoustic spectroscopy (PAS). For the assessment of aggregation- and reabsorption-induced distortions of measured fluorescence quantum yields and procedures for the reliable consideration of such effects, this systematic comparison was performed in ethanol and in water employing different concentrations of R6G. In addition, the relative and absolute fluorescence quantum yields of these solutions were obtained with a calibrated spectrofluorometer and a commercialized integrating sphere setup. Based upon this systematic comparison, experimental advantages and systematic sources of variation were identified for both methods. KW - Fluorescence KW - Photoluminescence KW - Quantum yield KW - Photoacoustic spectroscopy KW - Absolute quantum yield KW - Integrating sphere KW - Rhodamine 6G KW - Aggregation KW - Reabsorption PY - 2012 U6 - https://doi.org/10.1016/j.talanta.2011.12.051 SN - 0039-9140 VL - 90 SP - 30 EP - 37 PB - Elsevier CY - Amsterdam AN - OPUS4-25710 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Schlegel, Moritz-Caspar A1 - Müller, Urs A1 - Panne, Ulrich A1 - Emmerling, Franziska T1 - First and Last Seconds of a Building´s Life - Applied Chemistry in Build Environment T2 - Doktorandentagung der GDCh CY - Berlin, Germany DA - 2012-02-26 PY - 2012 AN - OPUS4-25712 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Schlegel, Moritz-Caspar A1 - Sarfraz, Adnan A1 - Müller, Urs A1 - Panne, Ulrich A1 - Emmerling, Franziska T1 - Early Stages of Cement Hydration - An In-Situ Study Utilizing High resolution SyXRD T2 - Jahrestagung der Deutschen Gesellschaft für Kristallographie (DGK) CY - Munich, Germany DA - 2012-03-11 PY - 2012 AN - OPUS4-25713 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Häcker, Ralf T1 - Ermittlung der Unsicherheiten in der Werkstoffprüfung T2 - 266.PTB-Seminar "Berechnung der Messunsicherheit - Empfehlungen für die Praxis" CY - Berlin, Germany DA - 2012-03-20 PY - 2012 AN - OPUS4-25714 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Wolf, S. E. A1 - Emmerling, Franziska A1 - Kappl, M. A1 - Marin, F. T1 - IFacing the both sides of a coin by merging biological and nonclassical crystallisation models: is a liquid amorphous precursor involved in the formation of the prismatic layer of the Mediterranean Fan Mussel Pinna nobilis? T2 - Faraday Discussion 159, 23 - 25 July 2012 CY - Leeds, England DA - 2012-07-23 PY - 2012 AN - OPUS4-25715 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Schartel, Bernhard T1 - Towards Evidence-based Development of Flame Retarded Polymers T2 - 243th ACS National Meeting Spring 2012 CY - San Diego, CA, USA DA - 2012-03-25 PY - 2012 AN - OPUS4-25716 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Ortel, Erik A1 - Fischer, Astrid A1 - Chuenchom, L. A1 - Polte, Jörg A1 - Smarsly, B. A1 - Krähnert, R. A1 - Emmerling, Franziska T1 - Mesopoous metal oxide films with controlled pore size, wall thickness and pore hierarchy templated by PEO-b-PEO triblock copolymers T2 - 24. Deutsche Zeolith -Tagung CY - Magdeburg, Germany DA - 2012-03-07 PY - 2012 AN - OPUS4-25717 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Jäger, Christian A1 - Huber, Alexandra A1 - Behnke, Thomas A1 - Würth, Christian A1 - Resch-Genger, Ute T1 - Comparison of 19F qNMR, absolute fluorescence, and absorption measurement of dye concentrations in fluorescent PS particles T2 - 53rd Experimental Nuclear Magnetic Resonance Conference CY - Miami, FL, USA DA - 2012-04-15 PY - 2012 AN - OPUS4-25718 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Wolf, S. E. A1 - Kappl, M. A1 - Emmerling, Franziska A1 - Marin, F. T1 - Facing the both sides of a coin by merging biological and nonclassical crystallisation models: is a liquid amorphous precursor involved in the formation of the prismatic layer of the Mediterranean Fan Mussel Pinna nobilis? T2 - Faraday Discussion 159 CY - Leeds, England DA - 2012-07-23 PY - 2012 AN - OPUS4-25719 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Kittler, Katrin A1 - Schreiner, M. A1 - Krumbein, A. A1 - Manzei, S. A1 - Koch, Matthias A1 - Rohn, S. A1 - Maul, Ronald T1 - Uptake of the cyanobacterial toxin cylindrospermopsin in brassica vegetables N2 - Toxin-producing cyanobacterial species are increasingly being found in freshwater systems. However, literature on the impact of many cyanobacterial toxins on plants is scarce. Cylindrospermosin (CYN), a secondary metabolite of cyanobacteria such as Cylindrospermopsis and Aphanizomenon species, is a potent hepatotoxin and protein synthesis inhibitor. Worryingly, CYN is increasingly found in surface and drinking water worldwide causing human and animal intoxications. Further, exposure of crop plants to CYN by irrigation with contaminated water has already been shown. Therefore, in this study, horticulturally important and highly consumed Brassica species were investigated to determine the level of CYN in the leaves after exposure of the roots to the toxin. Treatment of Brassica oleracea var. sabellica, Brassica juncea, and Sinapis alba under varying experimental conditions showed significant CYN uptake, with CYN levels ranging from 10% to 21% in the leaves compared to the CYN concentration applied to the roots (18–35 µg/l). In seedlings, CYN concentrations of up to 49 µg/g fresh weight were observed. Thus, crop plants irrigated with CYN-containing water may represent a significant source of this toxin within the food chain. KW - Cylindrospermopsin KW - Plant systemic availability KW - Cyanobacterial toxin KW - Brassicaceae KW - Exposure source PY - 2012 U6 - https://doi.org/10.1016/j.foodchem.2012.01.107 SN - 0308-8146 VL - 133 IS - 3 SP - 875 EP - 879 PB - Elsevier CY - Amsterdam [u.a.] ; Jena AN - OPUS4-25730 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Schebb, N.H. A1 - Franze, B. A1 - Maul, Ronald A1 - Ranganathan, A. A1 - Hammock, B.D. T1 - In vitro glucuronidation of the antibacterial triclocarban and its oxidative metabolites N2 - Triclocarban (3,4,4'-trichlorocarbanilide; TCC) is widely used as an antibacterial in bar soaps. During use of these soaps, a significant portion of TCC is absorbed by humans. For the elimination from the body, glucuronidation plays a key role in both biliary and renal clearance. To investigate this metabolic pathway, we performed microsomal incubations of TCC and its hydroxylated metabolites 2'-OH-TCC, 3'-OH-TCC, and 6-OH-TCC. Using a new liquid chromatography-UV-mass spectrometry method, we could show a rapid glucuronidation for all OH-TCCs by the uridine-5'-diphosphate-glucuronosyltransferases (UGT) present in liver microsomes of humans (HLM), cynomolgus monkeys (CLM), rats (RLM), and mice (MLM). Among the tested human UGT isoforms, UGT1A7, UGT1A8, and UGT1A9 showed the highest activity for the conjugation of hydroxylated TCC metabolites followed by UGT1A1, UGT1A3, and UGT1A10. Due to this broad pattern of active UGTs, OH-TCCs can be efficiently glucuronidated in various tissues, as shown for microsomes from human kidney (HKM) and intestine (HIM). The major renal metabolites in humans, TCC-N-glucuronide and TCC-N'-glucuronide, were formed at very low conversion rates (<1%) by microsomal incubations. Low amounts of N-glucuronides were generated by HLM, HIM, and HKM, as well as by MLM and CLM, but not by RLM, according to the observed species specificity of this metabolic pathway. Among the human UGT isoforms, only UGT1A9 had activity for the N-glucuronidation of TCC. These results present an anomaly where in vivo the predominant urinary metabolites of TCC are N and N'-glucuronides, but these compounds are slowly produced in vitro. KW - 3,4,4'-trichlorocarbanilide KW - Metabolism KW - Glucuronidation PY - 2012 U6 - https://doi.org/10.1124/dmd.111.042283 SN - 0090-9556 SN - 1521-009X VL - 40 IS - 1 SP - 25 EP - 31 PB - ASPET CY - Bethesda, Md., USA AN - OPUS4-25731 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Maul, Ronald A1 - Müller, C. A1 - Rieß, Stephanie A1 - Koch, Matthias A1 - Methner, F.-J. A1 - Nehls, Irene T1 - Germination induces the glucosylation of the Fusarium mycotoxin deoxynivalenol in various grains N2 - In food, the mycotoxin deoxynivalenol (DON) often occurs in conjunction with its 3-β-D-glucopyranoside (D3G). The transformation of DON to D3G through glucosylation is catalysed by plant enzymes, however, the exact circumstances are not well understood. In order to investigate the role of enzymatic glucosylation in germinating grains, DON treated kernels were steeped and germinated under laboratory conditions. Furthermore, the effect of malting on the DON content of the contaminated barley was investigated. In all cases, DON and its derivatives were quantified by HPLC-MS/MS before, during and after the experiments. Amongst the six tested cereals; wheat, rye, barley, spelt, and millet transformed DON to D3G during germination whilst the oats were inactive. For wheat, barley, and spelt the initial DON content was reduced by 50%, with the loss being almost entirely accounted for by D3G formation. As D3G might be cleaved during digestion, the elevated D3G concentration may obscure the toxicologically relevant DON content in processed food and beer. The germination process has a major influence on the 'masking' of DON, leading to high quantities of D3G that may be missed in common mycotoxin analyses. KW - Mycotoxins KW - Masked mycotoxins KW - Deoxynivalenol (DON) KW - DON-3-glucoside KW - Acetyl-DON KW - Germination KW - Malting PY - 2012 U6 - https://doi.org/10.1016/j.foodchem.2011.08.077 SN - 0308-8146 VL - 131 IS - 1 SP - 274 EP - 279 PB - Elsevier CY - Amsterdam [u.a.] ; Jena AN - OPUS4-25732 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Braeutigam, P. A1 - Franke, M. A1 - Schneider, Rudolf A1 - Lehmann, Andreas A1 - Stolle, A. A1 - Ondruschka, B. T1 - Degradation of carbamazepine in environmentally relevant concentrations in water by hydrodynamic-acoustic-cavitation (HAC) N2 - The antiepileptic drug carbamazepine is one of the most abundant pharmaceuticals in the German aquatic environment. The effect of low carbamazepine concentrations (1–50 µg L-1) is discussed controversially, but ecotoxicological studies revealed reproduction toxicity, decreased enzymatic activity and bioaccumulation in different test organisms. Therefore, as a preventive step, an efficient and cost-effective technique for wastewater treatment plants is needed to stop the entry of pharmaceuticals into the aquatic environment. Cavitation, the formation, growth, and subsequent collapse of gas- or vapor-filled bubbles in fluids, was applied to solve this problem. The technique of Hydrodynamic-Acoustic-Cavitation was used showing high synergistic effect. Under optimized conditions carbamazepine (5 µg L-1) was transformed by pseudo-first order kinetics to an extent of >96% within 15 min (27% by hydrodynamic cavitation, 33% by acoustic cavitation). A synergistic effect of 63% based on the sum of the single methods was calculated. Carbamazepine concentrations were monitored by a sensitive and selective immunoassay and after 60 min no known metabolites were detectable by LC-MS/MS. KW - Carbamazepine KW - Degradation KW - Hydrodynamic cavitation KW - Acoustic cavitation KW - ELISA PY - 2012 U6 - https://doi.org/10.1016/j.watres.2012.02.013 SN - 0043-1354 VL - 46 IS - 7 SP - 2469 EP - 2477 PB - Elsevier CY - Amsterdam AN - OPUS4-25735 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - GEN A1 - Häcker, Ralf T1 - Ermittlung der Unsicherheiten in der Werkstoffprüfung T2 - 266. PTB-Seminar CY - Berlin, Deutschland DA - 2012-03-20 KW - Messunsicherheit KW - Werkstoffprüfung KW - Zugversuch PY - 2012 UR - http://www.ptb.de/cms/fileadmin/internet/fachabteilungen/abteilung_8/8.4_mathematische_modellierung/266_PTB_SEMINAR/VORTRAEGE/Haecker_-_Ermittlung_der_Unsicherheiten_in_der_Werkstoffpruefung.pdf SP - 1 EP - 27 CY - Berlin AN - OPUS4-25736 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Pretsch, Thorsten A1 - Ecker, Melanie A1 - Schildhauer, Markus A1 - Maskos, Michael T1 - Switchable information carriers based on shape memory polymer N2 - Herein we demonstrate the realization of a new technological concept, which enables the use of shape memory polymers (SMPs) as switchable information carriers. At first, we applied a surface-specific dyeing process based on 'guest-diffusion' on two sophisticated polymeric host materials, including a thermoplastic poly(ester urethane) SMP and a thermoset epoxy-based SMP. Upon drying, self-assembly of the dye molecules inside the polymer surfaces occurred, resulting in homogeneous color penetration depths of about 100 µm. Subsequently, the colored surfaces were patterned with quick response (QR) codes. For this purpose, laser ablation was used. The resulting cavity depth was exceeding the color penetration depth. This assured sufficient surface contrast and rendered the QR codes machine-readable. In a progressive approach, two thermo-mechanical functionalization protocols were designed in accordance with the thermal properties of the polymers. As a result of programming, the tag prototypes were converted into stable, temporary shapes with non-decodable QR code information. When thermally triggering the shape memory effect on the functionalized tags, we verified the mostly complete recovery of the polymer surface and the associated restoration into the almost original shape. As such, the QR code could again precisely be read out. We anticipate that tagging products with these information carriers is helpful for the purpose of secure one-time identification. KW - Shape memory polymer KW - Epoxy-based polymer KW - Poly(ester urethane) KW - Thermo-responsive polymer KW - Laser ablation KW - Laser marking KW - QR code KW - Functionalized tags KW - Tag technology KW - Smart tagging KW - Switchable information carrier KW - Authentification KW - Identification KW - Surface-specific dyeing KW - Guest diffusion PY - 2012 U6 - https://doi.org/10.1039/c2jm16204k SN - 0959-9428 SN - 1364-5501 VL - 22 IS - 16 SP - 7757 EP - 7766 PB - Royal Society of Chemistry CY - Cambridge AN - OPUS4-25737 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Füllbrandt, Marieke A1 - von Klitzing, R. A1 - Schönhals, Andreas T1 - The Phase Transition Behaviour of Different Aqueous Poly(N-isopropylacrylamide) Systems monitored by Dielectric Spectroscopy T2 - Spring Meeting DPG 2012 CY - Berlin, Germany DA - 2012-03-26 PY - 2012 AN - OPUS4-25738 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Lima, D.L.D. A1 - Schneider, Rudolf A1 - Esteves, V.I. T1 - Sorption behavior of EE2 on soils subjected to different long-term organic amendments N2 - The transport and fate of hydrophobic organic contaminants in the environment involve complex phenomena that are influenced by many processes that include sorption by soil components. Sorption behavior of EE2 molecules onto different soil samples was studied and results correlated with the content and type of organic matter present. The highest Κ value, among all soils presented in this study, was obtained for soil fertilized with compost (1.22) which presented the highest organic carbon content. Also the sorption behavior depends greatly on the soil specific organic matter characteristics. A strong positive correlation was observed between aromatic and carboxylic units and ΚOC values. The results also suggested an association of the EE2 aromatic nuclei face to face with the surface and/or another EE2 molecule and also sorbent–sorbate interactions due to hydrogen or covalent bonding, likely to occur due to the presence of phenolic function at C-3 and hydroxyl function at C-17 of the EE2 molecules that can react with carboxylic functional groups of soil organic matter. The stronger EE2 sorbs to soil organic matter lower is the leaching into drinking water resources and runoff to rivers and surface water, minimizing its residual toxicity. KW - EE2 KW - Sorption KW - Soil KW - Deconvolution KW - Fluorescence PY - 2012 U6 - https://doi.org/10.1016/j.scitotenv.2012.02.014 SN - 0048-9697 VL - 423 SP - 120 EP - 124 PB - Elsevier CY - Amsterdam AN - OPUS4-25739 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Rosenfeld, A. A1 - Höhm, S. A1 - Bonse, Jörn A1 - Krüger, Jörg T1 - Laser-induced periodic surface structures induced by double femtosecond pulse irradiation sequences T2 - LPM 2012, 13th International Symposium on Laser Precision Microfabrication CY - Washington, D.C., USA DA - 2012-06-12 PY - 2012 AN - OPUS4-25760 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Anca-Couce, A. A1 - Zobel, N. A1 - Berger, Anka A1 - Behrendt, F. T1 - Smouldering of pine wood: kinetics and reaction heats N2 - A kinetic model of smouldering of pine wood is determined by thermo-gravimetric analysis (TGA), describing the reactions of wood pyrolysis, wood oxidation and char oxidation. Thermo-gravimetric experiments were conducted with constant heating rates ranging from 2.5 to 10 K/min in atmospheres of pure nitrogen and mixtures of nitrogen and oxygen (with 20.5%, 8.2% and 4.3% O2). At first wood pyrolysis and char oxidation experiments are carried out in an independent way. Then smouldering experiments are conducted, which combine the two previous reactions with wood oxidation. Finally, the heats of the reactions are determined by differential scanning calorimetry (DSC). The results are discussed, compared with the literature and the derived kinetic model is presented, which includes five components: three pseudo-components of wood – representing roughly cellulose, hemi-cellulose and lignin – as well as char and ashes. KW - Smouldering KW - Kinetics KW - TGA KW - Biomass PY - 2012 U6 - https://doi.org/10.1016/j.combustflame.2011.11.015 SN - 0010-2180 SN - 1556-2921 VL - 159 IS - 4 SP - 1708 EP - 1719 PB - Elsevier Inc. CY - New York, NY AN - OPUS4-25761 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Falkenhagen, Jana A1 - Weidner, Steffen T1 - Anwendung der LC-MS in der Polymeranalytik T2 - Analytica 2012 CY - Munich, Germany DA - 2012-04-17 PY - 2012 AN - OPUS4-25762 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Sadeghi, Mohammad A1 - Purohit, Purv A1 - Bertin, Annabelle A1 - Böhning, Martin A1 - Schönhals, Andreas T1 - Dielectric investigation of Nanocomposites based on Polystyrene and Polyhedral Oligomeric Silsesquioxanes T2 - DPG Frühjahrstagung 2012 CY - Berlin, Germany DA - 2012-03-26 PY - 2012 AN - OPUS4-25763 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Deubel, Jan A1 - Werrel, Martin A1 - Krüger, Simone A1 - Piechotta, Christian A1 - Fettig, Ina A1 - Krause, Ulrich T1 - Chemical Analysis of Fire Effluents and Fire Debris T2 - SP Guest Researcher Colloquium CY - Borås, Sweden DA - 2012-04-19 PY - 2012 AN - OPUS4-25764 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Deubel, Jan A1 - Krüger, Simone A1 - Werrel, Martin A1 - Krause, Ulrich T1 - Burning Behavior of Particle Board in the Vitiated Cone Calorimeter T2 - Fire Safety Day 2012 CY - Lund, Sweden DA - 2012-04-18 PY - 2012 AN - OPUS4-25765 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Rabe, Frederik A1 - Löhnert, Andrea A1 - Knaust, Christian A1 - Thöns, Sebastian T1 - Numerical Calculation with CFD of Fire in Tunnels Toxicity and Light Extinction of Fire Smoke T2 - Fire Safety Day 2012 CY - Lund, Sweden DA - 2012-04-18 PY - 2012 AN - OPUS4-25766 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Kind, Thomas A1 - Wöstmann, Jens ED - Meßinger, J. T1 - Suche vorgespannter Bewehrung an einer Stahlbetonbrücke mit Radar und Ultraschall T2 - Georadar - Erfahrungen und Perspektiven CY - Freiberg, Deutschland DA - 2011-10-06 KW - Zerstörungsfreie Prüfung KW - Radar KW - Ultraschall KW - Spanngliedortung KW - Verfahrenskombination PY - 2012 SN - 0947-1944 VL - I SP - 1 EP - 6 PB - Dt. Geophysikalische Ges. CY - Potsdam AN - OPUS4-25767 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Trela, Christiane ED - Meßinger, J. T1 - Untersuchungen zur Positioniergenauigkeit von automatisierten Radarmessungen T2 - Georadar - Erfahrungen und Perspektiven CY - Freiberg, Deutschland DA - 2011-10-06 KW - Radarmessungen KW - Automatisierung KW - Messgenauigkeit PY - 2012 SN - 0947-1944 VL - I SP - 39 EP - 44 PB - Dt. Geophysikalische Ges. CY - Potsdam AN - OPUS4-25768 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Pirskawetz, Stephan A1 - Weise, Frank A1 - Fontana, Patrick ED - van Breugel, K. ED - Ye, G. ED - Sun, W. ED - Miao, C. T1 - Analysis of early-age cracking of cementitious materials by combination of various non destructive testing methods T2 - 2nd International conference on microstructural-related durability of cementitious composites CY - Amsterdam, The Netherlands DA - 2012-04-11 KW - Self-desiccation shrinkage KW - Nondestructive testing KW - Acoustic emission KW - Microcracking PY - 2012 SN - 978-2-35158-129-2 IS - 83 SP - 1 EP - 10 AN - OPUS4-25769 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Grandke, Julia A1 - Resch-Genger, Ute A1 - Bremser, Wolfram A1 - Garbe, L.-A. A1 - Schneider, Rudolf T1 - Quality assurance in immunoassay performance-temperature effects N2 - Temperature is one factor that influences the performance of immunoassays. Most commonly all incubation steps of the immunoassay are performed at ambient temperature. To systematically study the influence of temperature deviations on assay parameters like signal variation coefficients, limit of detection and measurement range, direct competitive enzyme immunoassays for the determination of two anthropogenic markers, caffeine and carbamazepine, were run at different temperatures above and below room temperature during individual assay steps. The temperature during the competition step had the greatest impact on the assay sensitivity yielding changes in test midpoints by a factor of 10 to 15. For carbamazepine, the test midpoints varied from 36 ng L-1, 108 ng L-1 to 378 ng L-1 employing 4 °C, 21 °C, or 37 °C as incubation temperature, respectively. The edge effect can be minimized resulting in a good plate homogeneity with small variation coefficients, when the assay is performed at ambient temperature. KW - Immunoassay KW - Temperature effects PY - 2012 U6 - https://doi.org/10.1039/c2ay05918e SN - 1759-9660 SN - 1759-9679 IS - 4 SP - 901 EP - 905 PB - RSC Publ. CY - Cambridge AN - OPUS4-25740 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Razzaq, M.Y. A1 - Behl, M. A1 - Frank, U. A1 - Koetz, J. A1 - Szczerba, Wojciech A1 - Lendlein, A. T1 - Oligo(omega-pentadecalactone) decorated magnetic nanoparticles N2 - Hybrid magnetic nanoparticles (mgNP) with a magnetite core diameter of 10 ± 1 nm surface functionalized with oligo(ω-pentadecalactone) (OPDL) oligomers with Mn between 1300 and 3300 g mol-1 could be successfully prepared having OPDL grafted from 200 mg g-1 to 2170 mg g-1. The particles are dispersible in chloroform resulting in stable suspensions. Magnetic response against an external magnetic field proved the superparamagnetic nature of the particles with a low coercivity (Bc) value of 297 µT. The combination of the advantageous superparamagnetism of the mgNP with the exceptional stability of OPDL makes these novel hybrid mgNP promising candidates as multifunctional building blocks for magnetic nanocomposites with tunable physical properties. PY - 2012 U6 - https://doi.org/10.1039/c2jm16146j SN - 0959-9428 SN - 1364-5501 VL - 22 IS - 18 SP - 9237 EP - 9243 PB - Royal Society of Chemistry CY - Cambridge AN - OPUS4-25741 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Schenk, Jonas A1 - Batzdorf, Lisa A1 - Emmerling, Franziska A1 - Kneipp, Janina A1 - Panne, Ulrich A1 - Buurman, Merwe T1 - Simultaneous UV/Vis spectroscopy and surface enhanced raman scattering of nanoparticle formation and aggregation in levitated droplets N2 - The formation and growth of hydroxylamine reduced silver nanoparticles were investigated by simultaneous Raman and UV/Vis spectroscopy coupled to an acoustic levitator as a sample holder. Based on the UV/Vis spectra, a two step particle formation mechanism with fast initial formation and adjacent coalescence can be proposed for the reduction of silver nitrate with hydroxylamine. The presence of the analyte adenine during particle formation resulted in differences in the adenine SERS signature compared to experiments, where adenine was added after particle synthesis. It was possible to monitor the adenine and sodium chloride induced aggregation of the nanoparticles and its dynamics based on both the extinction spectra and the SERS data. Correlating the information from the extinction spectra with the SERS intensity, the maximum SERS signals were observed at maximum extinction of the aggregated nanoparticle solution at the Raman excitation wavelength. PY - 2012 U6 - https://doi.org/10.1039/c2ay05744a SN - 1759-9660 SN - 1759-9679 N1 - Geburtsname von Batzdorf, Lisa: Tröbs, L. - Birth name of Batzdorf, Lisa: Tröbs, L. N1 - Geburtsname von Buurman, Merwe: Albrecht, M. - Birth name of Buurman, Merwe: Albrecht, M. VL - 4 IS - 5 SP - 1252 EP - 1258 PB - RSC Publ. CY - Cambridge AN - OPUS4-25742 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Gravenkamp, Hauke A1 - Song, C. A1 - Prager, Jens T1 - A numerical approach for the computation of dispersion relations for plate structures using the scaled boundary finite element method N2 - In this paper, a method is presented for the numerical computation of dispersion properties and mode shapes of guided waves in plate structures. The formulation is based on the Scaled Boundary Finite Element Method. The through-thickness direction of the plate is discretized in the finite element sense, while the direction of propagation is described analytically. This leads to a standard eigenvalue problem for the calculation of wave numbers. The proposed method is not limited to homogeneous plates. Multi-layered composites as well as structures with continuously varying material parameters in the direction of thickness can be modeled without essential changes in the formulation. Higher-order elements have been employed for the finite element discretization, leading to excellent convergence for complex structures. It is shown by numerical examples that this method provides highly accurate results with a small number of nodes while avoiding numerical problems and instabilities. KW - Scaled boundary finite element method KW - Lamb waves KW - Dispersion KW - Non-destructive testing KW - Composites KW - Functionally graded materials PY - 2012 U6 - https://doi.org/10.1016/j.jsv.2012.01.029 SN - 0022-460X SN - 1095-8568 VL - 331 IS - 11 SP - 2543 EP - 2557 PB - Academic Press CY - London AN - OPUS4-25743 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Pirskawetz, Stephan A1 - Weise, Frank A1 - Fontana, Patrick T1 - Analysis of Early-age Cracking of Cementitious Materials by Combination of various Non Destructive Testing Methods T2 - MicroDurability, 2nd International Conference on "Microstructure related Durability of Cementitious Composites" CY - Amsterdam, Netherlands DA - 2012-04-11 PY - 2012 AN - OPUS4-25744 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Hodoroaba, Vasile-Dan T1 - Oberflächlich betrachtet - Spektroskopie analysiert Werkstoffe KW - Mikrobereichsanalyse KW - Metalle KW - Ringversuch KW - Messunsicherheit PY - 2012 UR - http://www.laborpraxis.vogel.de/analytik/spektroskopie-und-photometrie/roentgenstrukturanalyse/articles/356924 SN - 0344-1733 SN - 1610-8256 IS - März SP - 20 EP - 21 PB - Vogel CY - Würzburg AN - OPUS4-25745 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CHAP A1 - Pfeil, Norbert ED - Schmidt, J. T1 - Organized by processNet: Tutzing symposium 2011 'CFD - its future in safety technology' KW - CFD KW - Anlagen- und Prozesssicherheit KW - ProcessNet PY - 2012 SN - 978-3-527-33027-0 IS - Chapter 2 SP - 5 EP - 7 PB - Wiley-VCH Verlag GmbH & Co. KGaA AN - OPUS4-25746 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Zeynalov, Eldar A1 - Maherramova, S.N. A1 - Sadieva, N.F. A1 - Iskenderova, S.A. A1 - Agayev, B. K. A1 - Friedrich, Jörg Florian T1 - New softeners for polyvinylchloride N2 - Die Produktion von neuen effektiven und 'grünen' Weichmachern für Polyvinylchlorid (PVC) stellt eine der großen Herausforderungen in der chemischen Industrie dar. In diesem Beitrag wird über Ergebnisse von Untersuchungen berichtet, in denen symmetrische Ester einer Reihe von Fettsäuren und Triethylenglykol (TEG) gewonnen wurden und die als effektive Plastifizierungskomponenten verwendet wurden. Die Veresterung wurde unter Zugabe von Titandioxid Degussa P-25 in Nanopartikelgröße als umweltverträgliche Technologie durchgeführt. Eine gute Verträglichkeit und eine niedrige Flüchtigkeit der Ester auf Biobasis in den PVC-Rezepturen werden gezeigt und es konnten bessere physiko-mechanische Eigenschaften der PVC-Komposite eingestellt werden. Die Ester können als effektive und umweltfreundliche PVC-Weichmacher und als Ersatz für herkömmliche Phtalate empfohlen werden. KW - Softener KW - Polyvinylchloride PY - 2012 SN - 0025-5300 VL - 54 IS - 4 SP - 246 EP - 248 PB - Hanser CY - München AN - OPUS4-25747 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Mix, Renate A1 - Friedrich, Jörg Florian A1 - Inagaki, N. T1 - Modification of branched polyethylene by aerosol-assisted dielectric barrier discharge N2 - Three polyethylene (PE) types with different branching structures were subjected to air, water and ethanol aerosol-assisted dielectric barrier discharges (DBD) for surface modification. Using the air DBD the incorporated oxygen concentration was found to be independent on the branching of PE in contrast to the introduction of OH groups, which was PE-2 > PE-1 > PE-3. For water-aerosol DBD the succession of OH concentration was in the order of PE-1 > PE-2 > PE-3. Ethanol aerosol-assisted DBD produced the lowest concentration of OH groups also independent on the branching of PE. The chemical nature of introduced oxygen functional groups was inspected by X-ray photoelectron spectroscopy (XPS) and assigned as C–O, >C=O/CHO/O–C–O and O=C–O. KW - PE KW - Surface modification KW - Aerosol-assisted DBD PY - 2012 U6 - https://doi.org/10.1002/ppap.201100052 SN - 1612-8850 SN - 1612-8869 VL - 9 IS - 4 SP - 406 EP - 416 PB - Wiley-VCH Verl. CY - Weinheim AN - OPUS4-25748 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Naghib Zadeh, Hamid A1 - Rabe, Torsten T1 - Pressure-Assisted Sintering of Multilayer Transformer Using LTCC-Compatible NiCuZn-Ferrite and Silver Conductor T2 - Ceramic Interconnect and Ceramic Microsystems Technologies (CICMT) 2012 CY - Erfurt, Germany DA - 2012-04-17 PY - 2012 AN - OPUS4-25749 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Häßler, Dustin T1 - Standsicherheit von Einfriedungsmauern KW - Standsicherheit KW - Mauerwerk KW - Schäden KW - Ertüchtigung KW - Bauen im Bestand PY - 2012 SN - 2190-4278 VL - 3 IS - 1 SP - 23 EP - 28 PB - Fraunhofer-IRB-Verl. CY - Stuttgart AN - OPUS4-25720 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Röhrich, J. A1 - Damerow, T. A1 - Hahn, W. A1 - Müller, U. A1 - Reinholz, Uwe A1 - Denker, A. T1 - A tandetron as proton injector for the eye tumor therapy in Berlin N2 - The therapy of eye tumors with fast protons is an excellent tool giving very high local control rates. At the Helmholtz-Zentrum Berlin (HZB) almost 1800 patients were treated since 1998. A 2 MV Tandetron™ was installed as injector for the k = 132 HZB cyclotron. Using the standard 358 duoplasmatron ion source with direct extraction of negative hydrogen ions an extremely stable proton beam can be delivered, both on the short-term and the long-term scale. The hair-needle filaments made from thoriated tungsten wires have safe operation times of more than 1000 h. KW - Biomedical equipment KW - Duoplasmatrons KW - Eye KW - Particle beam extraction KW - Radiation therapy KW - Tumours PY - 2012 U6 - https://doi.org/10.1063/1.3662475 SN - 0034-6748 SN - 1089-7623 VL - 83 IS - 02B903 SP - 1 EP - 3 PB - American Institute of Physics CY - Melville, NY AN - OPUS4-25721 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Zier, M. A1 - Reinholz, Uwe A1 - Riesemeier, Heinrich A1 - Radtke, Martin A1 - Munnik, F. T1 - Accurate stopping power determination of 15N ions for hydrogen depth profiling by a combination of ion beams and synchrotron radiation N2 - Hydrogen analysis is of particular importance in thin film technology and it is often necessary to obtain a depth profile. The method with the best depth resolution is NRA using the 6385 keV resonance of the 1H(15N,αγ)12C nuclear reaction. The correct quantification of the depth and concentration scales in the measured hydrogen profiles relies on accurate stopping power values. We present a method to deduce these values from a combination of two techniques: NRA and X-ray reflectometry (XRR). This method is applied to the determination of the stopping power of ~6.4 MeV 15N ions in H-containing amorphous Si-layers (a-Si:H). Density-independent stopping powers at different H concentrations are determined by combining the results from NRA and XRR with an overall uncertainty of 3.3%, showing good agreement with SRIM values. This work shows exemplary the methodology for future evaluation of stopping powers for quality assurance in NRA. KW - Nuclear reaction analysis KW - Hydrogen depth profiling KW - Stopping cross section KW - Linear energy transfer KW - Synchrotron radiation KW - XRR PY - 2012 U6 - https://doi.org/10.1016/j.nimb.2011.07.027 SN - 0168-583X SN - 1872-9584 VL - 273 SP - 18 EP - 21 PB - Elsevier CY - Amsterdam AN - OPUS4-25722 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - De Jong, E. A1 - Lightfoot, P. A1 - Mak, W. A1 - Pfeil, Norbert A1 - Wehrstedt, Klaus-Dieter T1 - IGUS - 50 years of international collaboration to the benefit of safety in the field of unstable substances N2 - IGUS is the International Group of Experts on the Explosion Risks of Unstable Substances. Today, the aim of the group is to exchange information on the behavior of unstable substances and to improve safety in production, storage, transport, and use of these substances. Full members of IGUS work for governments and independent research organizations. Experts from industry can and do attend meetings by invitation. IGUS's 50th anniversary in 2012 gives reason to have a closer look at the questions of how IGUS came to be, what IGUS's aims and objectives were, and how it is organized and working today. KW - Explosion hazards KW - Hazardous substances KW - IGUS KW - Loss prevention KW - Test methods PY - 2012 U6 - https://doi.org/10.1002/ceat.201200053 SN - 0930-7516 SN - 1521-4125 VL - 35 IS - 4 SP - 605 EP - 608 PB - Wiley-VCH Verl. CY - Weinheim AN - OPUS4-25723 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Erning, Johann Wilhelm T1 - Qualification of stainless steels for drinking water applications: From Round-robin testing to EN 16056 T2 - Kormat 2012 CY - Zagreb, Croatia DA - 2012-04-17 PY - 2012 AN - OPUS4-25724 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Erning, Johann Wilhelm T1 - Metallene Werkstoffe in Kontakt mit Trinkwasser - Internationale und nationale Normung T2 - 8. Korrosionum CY - Stuttgart, Germany DA - 2012-04-23 PY - 2012 AN - OPUS4-25725 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Burkert, Andreas A1 - Lehmann, Jens T1 - Einsatz nichtrostender Stähle als Befestigungsmittel im Beton T2 - Befestigungsmittel im Stahlbetonbau: Planung-Werkstoffe-Zulassungen CY - Hanover, Germany DA - 2012-03-21 PY - 2012 AN - OPUS4-25726 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Burkert, Andreas A1 - Lehmann, Jens T1 - Legierungszusammensetzung oder Oberfläche - was bestimmt die Beständigkeit nichtrostender Stähle T2 - 10. Bielefelder Werkstofftag, Edelstahl Rostfrei - Auswahl, Verarbeitung und Anwendung CY - Bielefeld, Germany DA - 2012-03-22 PY - 2012 AN - OPUS4-25727 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Füllbrandt, Marieke A1 - Schönhals, Andreas T1 - Effect of architecture on thermosensitive response ofo poly(N-isopropylacrylamide) systems monitored by dielectric spectroscopy T2 - ProcessNet CY - Bad Dürkheim, Germany DA - 2012-03-12 PY - 2012 AN - OPUS4-25728 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Sipilä, J. A1 - Auerkari, Pertti A1 - Heikkilä, A.-M. A1 - Tuominen, R. A1 - Vela-Wallenschus, Iris A1 - Itkonen, J. A1 - Rinne, M. A1 - Aaltonen, K. T1 - Risk and mitigation of self-heating and spontaneous combustion in underground coal storage N2 - While the self-heating and spontaneous combustion of coal is a known challenge at coal mines and storage sites, there are known methods for mitigating this challenge for typical open stockpile storage. However, closing the storage will reduce access for corrective action, and it is then important to manage the storage and its transport system with added attention without unduly adding cost or hindering availability. This paper aims to discuss the risk, prevention and extinguishing of fires in closed coal storage facilities, particularly in light of the experience with the Salmisaari underground rock storage facility in Finland. The observed autoignition events have indicated an array of contributing factors, some of which are unique to underground silo storage facilities. On the other hand, many features of the storage facilities can be compared with other extant closed storage systems. The factors affecting fire risk are described and the associated fault and event trees are outlined for autoignition at underground storage. Drawing upon the experiences with past events of self-heating and spontaneous combustion, recommendations are given on cost-effective preventive, corrective and other mitigating action for minimising fire risk and promoting storage availability. KW - Coal KW - Underground storage KW - Fire KW - Risk KW - Mitigation PY - 2012 U6 - https://doi.org/10.1016/j.jlp.2012.01.006 SN - 0950-4230 SN - 1873-3352 N1 - Geburtsname von Vela-Wallenschus, Iris: Vela, I. - Birth name of Vela-Wallenschus, Iris: Vela, I. VL - 25 IS - 3 SP - 617 EP - 622 PB - Butterworth CY - Guildford, Surrey AN - OPUS4-25729 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Panne, Ulrich T1 - Against All Odds - Analytical Sciences for Real- World Applications T2 - GDCh-Vortrag/Fresenius-Lecture CY - Tübingen, Germany DA - 2012-05-24 PY - 2012 AN - OPUS4-25750 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Panne, Ulrich T1 - Nie wieder Dienstmagd- Analytical Sciences in Action T2 - GDCh-Vortrag/Fresenius-Lecture CY - Münster, Germany DA - 2012-06-18 PY - 2012 AN - OPUS4-25751 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Mieller, Björn A1 - Gemeinert, Marion A1 - Rabe, Torsten A1 - Koppert, R. A1 - Bolte, J. T1 - LTCC Substrates for High Performance Strain Gauges T2 - IMAPS/ACerS 8th Int. Conf. and Exhib. on Ceramic Interconnect and Ceramic Microsystems Technolgies (CICMT) CY - Erfurt, Germany DA - 2012-04-16 PY - 2012 N1 - Geburtsname von Mieller, Björn: Brandt, B. - Birth name of Mieller, Björn: Brandt, B. AN - OPUS4-25752 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Panne, Ulrich T1 - Laser for Analytical Sciences?! T2 - Kolloquium der Johannes Kepler Universität Linz CY - Linz, Austria DA - 2012-06-26 PY - 2012 AN - OPUS4-25753 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Heunisch, Andreas A1 - Schulz, Bärbel A1 - Rabe, Torsten A1 - Strunck, S. A1 - Follmann, R. A1 - Manabe, A. T1 - LTCC Antenna Array with Integrated Liquid Crystal Phase Shifter for Satellite Communication T2 - IMAPS/ACerS 8th Int. Conf. and Exhib. on Ceramic Interconnect and Ceramic Microsystems Technolgies (CICMT) CY - Erfurt, Germany DA - 2012-04-16 PY - 2012 AN - OPUS4-25754 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Kind, Thomas A1 - Wöstmann, Jens T1 - Kombinierte Radar- und Ultraschalluntersuchungen zum schadfreien Kernbohren im Zuge einer Verstärkung N2 - Im Rahmen von Ertüchtigungsmaßnahmen an Spannbetonbrücken werden häufig Kernbohrungen durchgeführt, die die vorhandenen Spannbewehrungen nicht beschädigen dürfen. Die Zerstörungsfreie Prüfung (ZfP) kann einen wesentlichen Beitrag leisten, das Risiko einer Beschädigung zu minimieren und somit eine bessere Planungssicherheit für die Ertüchtigungsmaßnahmen zu schaffen. Typische ZfP-Verfahren für das Auffinden von vorgespannter Bewehrung sind das Radar- und das Ultraschallverfahren. Am Beispiel der Ertüchtigung einer Brücke in Bremen wird die Vorgehensweise beschrieben, und es werden die Grenzen der Verfahren aufgezeigt. KW - Zerstörungsfreie Prüfung KW - Radar KW - Ultraschall KW - Spanngliedortung KW - Ertüchtigung KW - Bauwerkserhaltung/Sanierung KW - Bewehrung KW - Brückenbau PY - 2012 U6 - https://doi.org/10.1002/best.201200003 SN - 0005-9900 SN - 1437-1006 VL - 107 IS - 4 SP - 255 EP - 261 PB - Ernst CY - Berlin AN - OPUS4-25755 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Seuthe, T. A1 - Bonse, Jörn A1 - Grehn, M. A1 - Mermillod-Blondin, A. A1 - Rosenfeld, A. A1 - Eichler, H. J. A1 - Eberstein, M. T1 - Effects of single-pulse femtosecond laser irradiation on the structure of silicate glasses T2 - 11th ESG Conference (European Socienty of Glass) together with the 86th DGG Annual Meeting (Deutsche Glastechnische Gesellschaft) CY - Maastricht, Netherlands DA - 2012-06-03 PY - 2012 AN - OPUS4-25756 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Erning, Johann Wilhelm A1 - Mikó, A. A1 - Schlerkmann, H. A1 - Mathiesen, T. ED - Stojanovic, I. ED - Alar, V. T1 - Qualification of stainless steels for drinking water applications: from round-robin testing to EN 16056 T2 - KORMAT 2012 - 20th conference of materials protection and industrial finish CY - Zagreb, Croatia DA - 2012-04-17 PY - 2012 SN - 1848-4255 SP - 7 EP - 14 CY - Zagreb, Croatia AN - OPUS4-25757 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Rosenfeld, A. A1 - Bonse, Jörn A1 - Koter, Robert A1 - Krüger, Jörg A1 - Höhm, S. T1 - Sub-100 nm femtosecond laser-induced periodic surface structures by processing in air T2 - LPM 2012, 13th International Symposium on Laser Precision Microfabrication CY - Washington, D.C., USA DA - 2012-06-12 PY - 2012 AN - OPUS4-25758 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Mönch, Bettina A1 - Gebert, Antje A1 - Emmerling, Franziska A1 - Becker, Roland A1 - Nehls, Irene T1 - Koenigs-Knorr reaction of fusel alcohols with methyl (1-bromo-2,3,4-tri-O-acetyl-alpha-D-glucopyranosid)uronate leading to the protected alkyl glucuronides-crystal structures and high resolution 1H and 13C NMR data N2 - Crystal structures and high resolution 1H and 13C NMR spectral data for methyl (alkyl 2,3,4-tri-O-acetyl-β-D-glucopyranosid)uronates (alkyl = methyl, ethyl, n-propyl, i-propyl, n-butyl, sec-butyl, i-butyl, n-pentyl, 2-methyl-1-butyl and 3-methyl-1-butyl) are presented. KW - D-Glucuronic acid derivates KW - X-ray analysis KW - High resolution NMR KW - Anomeric configuration KW - Synthesis PY - 2012 U6 - https://doi.org/10.1016/j.carres.2012.01.002 SN - 0008-6215 SN - 1873-426X VL - 352 SP - 186 EP - 190 PB - Elsevier CY - Amsterdam AN - OPUS4-25759 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Höhne, Robert A1 - Behnke, Thomas A1 - Hoffmann, Katrin A1 - Resch-Genger, Ute T1 - PEGylation of fluorescent nanoparticles for multiplex detection in bioanalytics T2 - 6. Senftenberger Innovationsforum: Multiparameteranalytik mit zellulären Assays CY - Senftenberg, Germany DA - 2012-03-16 PY - 2012 AN - OPUS4-25700 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Thöns, Sebastian A1 - Schneider, Ronald T1 - Reliability-based inspection planning with application to orthotropic bridge deck structures subjected to fatigue T2 - IRIS Final Conference CY - Vienna, Austria DA - 2012-03-19 PY - 2012 AN - OPUS4-25701 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Burkert, Andreas A1 - Lehmann, Jens A1 - Burkert, Annette A1 - Mietz, Jürgen T1 - Damage of stainless steel bars due to atmospheric corrosion N2 - In addition to constructional requirements in civil engineering stainless steels often have to fulfil high visual demands. Unexpected impairments of the visual appearance of stainless steels under low corrosive conditions are a widespread problem today. Frequently it is supposed that this is caused by changes in the alloy composition, worse environmental conditions or improper handling. Within a research project the systematic investigation of several cases of damaged stainless steel bars has shown that the reasons are based on well-known material defects like chemical inhomogeneities (e.g. precipitations or local carburization) or geometrical defects (e.g. undercuts, rolling defects or shell formation). Thus, the failures could be clearly identified as production failures of the respective semi-finished products. KW - Atmospheric corrosion KW - EPR test KW - Failure KW - Intercrystalline corrosion KW - Stainless steel KW - Nichtrostender Stahl KW - Werkstoffauswahl KW - Dauerhaftigkeit KW - Korrosion PY - 2012 U6 - https://doi.org/10.1002/maco.201005701 SN - 0947-5117 SN - 1521-4176 VL - 63 IS - 3 SP - 264 EP - 270 PB - Wiley-VCH Verl. CY - Weinheim AN - OPUS4-25702 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Symietz, Christian A1 - Lehmann, Erhard A1 - Gildenhaar, Renate A1 - Hackbarth, Andreas A1 - Berger, Georg A1 - Krüger, Jörg T1 - Mechanical stability of Ti6Al4V implant material after femtosecond laser irradiation T2 - European Materials research Society (EMRS) Spring Meeting 2012 CY - Strasbourg, France DA - 2012-05-14 PY - 2012 AN - OPUS4-25703 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Mann, Guido A1 - Pentzien, Simone A1 - Krüger, Jörg T1 - Surface damage threshold of multimode fibers and their corresponding preform material for 1064 nm nanosecond laser treatment with varying beam diameter T2 - European Materials Research Society (EMRS) Spring Meeting 2012, Symposium V "Laser Materials Processing for Micro and Nano Application" CY - Strasbourg, France DA - 2012-05-14 PY - 2012 AN - OPUS4-25704 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CHAP A1 - Maierhofer, Christiane A1 - Defer, D. ED - Breysse, D. T1 - Infrared thermography KW - Infrared thermography KW - NDT in civil engineering KW - Concrete structures KW - Passive thermography KW - Active thermography KW - Pulse phase thermography PY - 2012 SN - 978-94-007-2735-9 U6 - https://doi.org/10.1007/978-94-007-2736-6 IS - Chapter 10 SP - 85 EP - 97 PB - Springer CY - Dordrecht Heidelberg London New York AN - OPUS4-25705 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CHAP A1 - Krüger, M. A1 - Maierhofer, Christiane A1 - Leissner, J. A1 - Bellendorf, P. A1 - Meinhardt, J. A1 - Antretter, F. ED - Fouad, N.A. T1 - Methoden der Dauerüberwachung von Gebäuden des kulturellen Erbes im Rahmen der Denkmalkonservierung KW - Monitoring KW - Zerstörungsfreie Prüfung KW - Verfahrenskombination KW - Denkmalpflege KW - Forschungsprojekte PY - 2012 SN - 978-3-433-02986-2 SN - 1617-2205 VL - 12 IS - Kap. D4 SP - 559 EP - 602 PB - Ernst & Sohn CY - Berlin AN - OPUS4-25706 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Yin, Huajie A1 - Schönhals, Andreas T1 - Molecular Mobility and Glass Transition of Thin Poly(Bisphenol A Carbonate)Films T2 - DPG Frühjahrstagung CY - Berlin, Germany DA - 2012-03-25 PY - 2012 AN - OPUS4-25707 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Yin, Huajie A1 - Schönhals, Andreas T1 - Molecular Dynamics of Miscible Polymer Blend Thin Films T2 - DPG Frühjahrstagung CY - Berlin, Germany DA - 2012-03-25 PY - 2012 AN - OPUS4-25708 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - GEN A1 - Schnell, A. A1 - Müller, A. A1 - Rübner, Katrin A1 - Ludwig, H.-M. ED - Thomé-Kozmiensky, K.J. ED - Goldmann, D. T1 - Mineralische Bauabfälle als Rohstoff für die Herstellung leichter Gesteinskörnungen KW - Bauschutt KW - Bauabfälle KW - Leichte Gesteinskörnung KW - Stoffliches Recycling KW - Granulate PY - 2012 SN - 978-3-935317-81-8 VL - 5 SP - 469 EP - 494 PB - TK-Verl. CY - Neuruppin AN - OPUS4-25709 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Bleul, Regina A1 - Bachran, D. A1 - Thiermann, Raphael A1 - Bertin, Annabelle A1 - Fuchs, H. A1 - Maskos, M. T1 - Functional Polymersomes - Potential Multitool for Targeted Cancer Therapy T2 - Nanomaterials for Biomedical Technologies CY - Frankfurt am Main, Germany DA - 2012-03-06 PY - 2012 AN - OPUS4-25690 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Kühn, Julius A1 - Wasserroth, S. A1 - Lippitz, Andreas A1 - Gross, Thomas A1 - Gorgoi, M. A1 - Linke, S. A1 - Moritz, W. A1 - Unger, Wolfgang T1 - Chemical Depth Profiles of Ternary Pd Alloys by HAXPES and First Spectra Simulations T2 - 76. Jahrestagung der DPG und DPG-Frühjahrstagung, DS 18: Thins film characterization: structure analysis and composition (Spectroscopy) CY - Berlin, Germany DA - 2012-03-25 PY - 2012 AN - OPUS4-25691 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Höhm, S. A1 - Bonse, Jörn A1 - Krüger, Jörg A1 - Rosenfeld, A. T1 - Laser-induced periodic surface structures produced by double femtosecond pulse irradiation sequences T2 - European Materials Research Society (EMRS) Spring Meeting 2012, Symposium V "Laser materials processing for micro and nano applications" CY - Strasbourg, France DA - 2012-05-12 PY - 2012 AN - OPUS4-25692 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Beck, Uwe A1 - Hertwig, Andreas T1 - Practical Aspects of Measurement and Data Evaluation - Invited Keynote Tutorial T2 - WSE 07, 2012 CY - Leipzig, Germany DA - 2012-03-05 PY - 2012 AN - OPUS4-25693 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Wehrstedt, Klaus-Dieter T1 - Gefährlich exotherm zersetzliche Stoffe und deren Identifizierung T2 - DECHEMA-Weiterbildungskurs "Sicherheit chemischer Reaktionen" CY - Berlin, Germany DA - 2012-03-26 PY - 2012 AN - OPUS4-25694 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Strunck, S. A1 - Heunisch, Andreas A1 - Gaebler, A. A1 - Jakoby, R. A1 - Rabe, Torsten A1 - Schulz, Bärbel A1 - Follmann, R. A1 - Köther, D. A1 - Manabe, A. T1 - Tunable Phase Shifter in LTCC Technology with Liquid Crystal T2 - ESA microwave technologies & techniques workshop CY - Noordwijk, Netherlands DA - 2012-05-21 PY - 2012 AN - OPUS4-25695 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Mathejczyk, J. A1 - Behnke, Thomas A1 - Napp, J. A1 - Alves, F. A1 - Resch-Genger, Ute T1 - Characterisation of nanoparticles containinga novel NIRF dye for tumor-specific imaging T2 - Imaging Innovations of the Lung CY - Göttingen, Germany DA - 2012-04-18 PY - 2012 AN - OPUS4-25697 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Behnke, Thomas A1 - Mathejczyk, J. A1 - Würth, Christian A1 - Napp, J. A1 - Hoffmann, Katrin A1 - Alves, F. A1 - Schäferling, M. A1 - Resch-Genger, Ute A1 - Lehmann, Andreas T1 - Design and Bioanalytical Applications of NIR-Fluorescent Polystyrene Nanoparticles T2 - Imaging Innovations of the Lung CY - Göttingen, Germany DA - 2012-04-18 PY - 2012 AN - OPUS4-25698 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Marotzke, Christian A1 - Basan, Ricardo T1 - Fracture Toughness of Fiber Reinforced Composites under Transverse Loading T2 - 12th SAMPE SEICO Conference CY - Paris, France DA - 2012-03-26 PY - 2012 AN - OPUS4-25699 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Tiebe, Carlo A1 - Hübert, Thomas A1 - Lorek, A. A1 - Wernecke, R. T1 - New planar trace humidity sensor T2 - IMCS 2012 - The 14th International Meeting on Chemical Sensors CY - Nuremberg, Germany DA - 2012-05-20 PY - 2012 AN - OPUS4-25680 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Bonse, Jörn T1 - Nanostrukturierung mit Femtosekundenlaserpulsen T2 - Seminar "Laser in der Feinbearbeitung" des Laserverbundes Berlin Brandenburg e. V. CY - Brandenburg an der Havel, Germany DA - 2012-04-19 PY - 2012 AN - OPUS4-25681 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Banach, Ulrich A1 - Gerlitzke, A.-K. A1 - Nörthemann, K. A1 - Moritz, W. T1 - Long-term stabiltiy of the low energy hydrogen sensor T2 - IMCS 2012 - The 14th International Meeting on Chemical Sensors CY - Nuremberg, Germany DA - 2012-05-20 PY - 2012 AN - OPUS4-25682 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Dietrich, Paul A1 - Horlacher, T. A1 - Girard-Lauriault, P.-L. A1 - Gross, Thomas A1 - Lippitz, Andreas A1 - Min, H. A1 - Wirth, Thomas A1 - Castelli, R. A1 - Seeberger, P. H. A1 - Unger, Wolfgang T1 - Carbohydrate-functionalized surfaces: Analysis by a multi-method approach T2 - 6. Senftenberger Innovationsforum: Multiparameteranalytik mit zellulären Assays CY - Senftenberg, Germany DA - 2012-03-16 PY - 2012 AN - OPUS4-25683 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Dietrich, Paul A1 - Funk, Ch. A1 - Gross, Thomas A1 - Weigel, W. A1 - Unger, Wolfgang T1 - Epoxy-functionalized Surfaces: Surface chemical analysis and fluorescence labeling of surface species T2 - 6. Senftenberger Innovationsforum: Multiparameteranalytik mit zellulären Assays CY - Senftenberg, Germany DA - 2012-03-16 PY - 2012 AN - OPUS4-25684 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Hertwig, Andreas A1 - Beck, Uwe T1 - Standardisation in the analysis of complex thin film systems with ellipsometry T2 - Workshop Ellipsometry 2012 CY - Leipzig, Germany DA - 2012-03-05 PY - 2012 AN - OPUS4-25685 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Hertwig, Andreas A1 - Beck, Uwe T1 - Standardisation in the analysis of complex thin film systems with ellipsometry T2 - Workshop Ellipsometry 2012 CY - Leipzig, Germany DA - 2012-03-05 PY - 2012 AN - OPUS4-25686 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Kühn, Julius A1 - Wasserroth, S. A1 - Wirth, Thomas A1 - Linke, S. A1 - Moritz, W. A1 - Unger, Wolfgang T1 - A comprehensive Auger electron spectroscopy study on a PdxNiyCo1-x-y-/LaF3/SiO2/Si multi-layer system for H2 detection T2 - 2. Berliner Chemie Symposium CY - Berlin, Germany DA - 2012-04-03 PY - 2012 AN - OPUS4-25687 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Kostiucenko, Oksana A1 - Fiutowski, J. A1 - Maibohm, Ch. A1 - Kjelstrup-Hansen, J. A1 - Rubahn, H.-G. A1 - Sturm, Heinz T1 - Mapping of gold nanostructure-induced near-field enhancement T2 - Frühjahrstagung der DPG 2012 CY - Berlin, Germany DA - 2012-03-25 PY - 2012 AN - OPUS4-25689 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Tölle, Florian A1 - Gumenyuk, Andrey A1 - Rethmeier, Michael T1 - Reduction of residual stresses in laser beam welds by means of defocused laser beams N2 - Longitudinal residual stresses in beam welds ranging at the value of the local yield strength can diminish the lifespan of components. To extend the service life of welds special methods of welding residual stress reduction were developed earlier which are however not effective for beam welds in complex component geometries. Application of beam welding sources for postwelding heat treatment of components has become a flexible tool for reducing longitudinal stresses in beam welds. Such heat treatment in a specific transversal distance to the weld by a defocused beam results in huge stress reductions depending on the used process parameters. Experimental results for ferritic and austenitic steels reveal weld stress reductions to up to compressive stresses. For different materials and diverse material thicknesses special process parameter regions have to be used in this procedure. At a transmission component this procedure shows a stress reduction by >300 MPa. KW - Post-welding heat treatment KW - Stress reduction KW - Residual stress KW - Beam welding PY - 2012 U6 - https://doi.org/10.1179/1362171812Y.0000000019 SN - 1362-1718 SN - 1743-2936 VL - 17 IS - 5 SP - 381 EP - 385 PB - Maney CY - London AN - OPUS4-26000 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Chen, Ji A1 - Schwenk, Christopher A1 - Wu, Chuan Song A1 - Rethmeier, Michael T1 - Predicting the influence of groove angle on heat transfer and fluid flow for new gas metal arc welding processes N2 - This article studies the three dimensional transient weld pool dynamics and the influence of groove angle on welding of low carbon structural steel plates using the ForceArc® process. The deformation of the weld bead is also calculated with an accurate coupling of the heat transfer with fluid flow through continuity, momentum and the energy equations combined with the effect of droplet impingement, gravity, electromagnetic force, buoyancy, drag forces and surface tension force (Marangoni effect). Different angles of V groove are employed under the same welding parameters and their influence on the weld pool behavior and weld bead geometry is calculated and analyzed, which is needed for subsequent calculations of residual stress and distortion of the workpiece. Such a simulation is an effective way to study welding processes because the influence of all welding parameters can be analyzed separately with respect to heat transfer, weld pool dynamic, and microstructure of the weld. Good agreement is found between the predicted and experimentally determined weld bead cross-section and temperature cycles. It is found that the main flow pattern is more or less the same although the groove angle increases, but it will evoke larger amount of fluid to flow downward to get deeper penetration. KW - Numerical simulation KW - Gas metal arc welding KW - Weld pool dynamics KW - Fluid flow KW - V groove PY - 2012 U6 - https://doi.org/10.1016/j.ijheatmasstransfer.2011.08.046 SN - 0017-9310 VL - 55 IS - 1-3 SP - 102 EP - 111 PB - Elsevier CY - Amsterdam AN - OPUS4-26001 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Hennig, Andreas A1 - Borcherding, H. A1 - Jäger, Christian A1 - Hatami, Soheil A1 - Würth, Christian A1 - Hoffmann, Angelika A1 - Hoffmann, Katrin A1 - Thiele, T. A1 - Schedler, U. A1 - Resch-Genger, Ute T1 - Scope and limitations of surface functional quantification methods: exploratory study with poly(acrylic acid)-grafted micro- and nanoparticles N2 - The amount of grafted poly(acrylic acid) on poly(methyl methacrylate) micro- and nanoparticles was quantified by conductometry, 13C solid-state NMR, fluorophore labeling, a supramolecular assay based on high-affinity binding of cucurbit[7]uril, and two colorimetric assays based on toluidine blue and nickel complexation by pyrocatechol violet. The methods were thoroughly validated and compared with respect to reproducibility, sensitivity, and ease of use. The results demonstrate that only a small but constant fraction of the surface functional groups is accessible to covalent surface derivatization independently of the total number of surface functional groups, and different contributing factors are discussed that determine the number of probe molecules which can be bound to the polymer surface. The fluorophore labeling approach was modified to exclude artifacts due to fluorescence quenching, but absolute quantum yield measurements still indicate a major uncertainty in routine fluorescence-based surface group quantifications, which is directly relevant for biochemical assays and medical diagnostics. Comparison with results from protein labeling with streptavidin suggests a porous network of poly(acrylic acid) chains on the particle surface, which allows diffusion of small molecules (cutoff between 1.6 and 6.5 nm) into the network. KW - Polymers KW - Surface groups KW - Quantification KW - Fluorescence PY - 2012 U6 - https://doi.org/10.1021/ja302649g SN - 0002-7863 SN - 1520-5126 VL - 134 IS - 19 SP - 8268 EP - 8276 PB - American Chemical Society CY - Washington, DC AN - OPUS4-26002 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Hartelt, Manfred A1 - Wäsche, Rolf T1 - Verschleißuntersuchungen an Dental-Implantat-Werkstoffen unter partial slip Bedingungen KW - Modellsystem KW - Partial slip KW - Fretting regime KW - Implantat KW - Titan PY - 2012 SN - 0724-3472 VL - 59 IS - 3 SP - 18 EP - 23 PB - Expert Verlag CY - Renningen AN - OPUS4-26003 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Neumann, Patrick P. A1 - Bennetts, V.H. A1 - Bartholmai, Matthias T1 - Adaptive gas source localization strategies and gas distribution mapping using a gas-sensitive micro-drone T2 - 16. GMA/ITG-Fachtagung 'Sensoren und Messsysteme' CY - Nürnberg, Germany DA - 2012-05-22 KW - Anemotaxis KW - Chemotaxis KW - Micro UAV KW - Bio-inspired KW - Chemical sensing KW - Gas distribution modeling KW - Gas source localization KW - Gas sensors KW - Mobile sensing system KW - Odor localization KW - Olfaction KW - Plume tracking KW - Quadrocopter PY - 2012 SN - 978-3-9813484-0-8 U6 - https://doi.org/10.5162/sensoren2012/P5.4 SP - 800 EP - 809 CY - Wunstorf AN - OPUS4-26004 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Petzet, S. A1 - Peplinski, Burkhard A1 - Cornel, P. T1 - On wet chemical phosphorus recovery from sewage sludge ash by acidic or alkaline leaching and an optimized combination of both N2 - The advantages and drawbacks of existing wet chemical phosphorus (P) recovery technologies, their applicability to different types of sewage sludge ash (SSA) and the role of the decay products of detergent zeolites as a source of reactive Al in SSA are analyzed. Since neither a purely acidic nor a purely alkaline treatment are able to provide satisfactory technical solutions a wet chemical phosphorus (P) recovery process for sewage sludge ashes (SSAs) is investigated in detail that is based on a sequential treatment of SSA with an acid and a base. As a result of an acidic pre-treatment, the P fraction of the raw SSA that was bound as – alkaline-insoluble – calcium phosphate (Ca–P) is converted into aluminum phosphate (Al–P). This newly formed Al–P can be easily dissolved via alkaline treatment and then easily separated from the alkaline leachate via precipitation of Ca–P. The Al-component can be reused as precipitant for P-removal in waste water treatment plants (WWTPs). The investigated process requires fewer chemicals than the direct acidic dissolution of all P-compounds contained in the SSA. This is due to the described rearrangement of the P component from Ca–P to Al–P. That such a rearrangement of P occurs indeed was confirmed through a combination of XRD, ICP and XRF analyses together with mass balance calculations. The present investigation proves that the process works for very different types of SSAs: For Al-rich SSAs that come from WWTPs where Al-salt is used for chemical P-removal the described sequential treatment process works best and yields P-recovery rates as high as 70–77%. But even for SSAs from WWTPs where only iron salt is used for chemical P-removal, a considerable amount of the reactive Al necessary for the described P-rearrangement is supplied by decay products of detergent zeolites, a hidden Al-source present in most SSAs produced in Europe. KW - Phosphorus recovery KW - Sewage sludge ash KW - Alkaline and acidic leaching KW - Calcium phosphate KW - Aluminum phosphate KW - Detergent zeolites KW - XRD analysis PY - 2012 U6 - https://doi.org/10.1016/j.watres.2012.03.068 SN - 0043-1354 VL - 46 IS - 12 SP - 3769 EP - 3780 PB - Elsevier CY - Amsterdam AN - OPUS4-26005 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Erhard, Anton A1 - Otremba, Frank A1 - Mohr, F. A1 - Kilian, R. T1 - Alloy 800 steam generator tube stress corrosion cracks - detection and root cause KW - Tube inspection PY - 2012 SN - 0007-1137 VL - 54 IS - 6 SP - 1 EP - 5 PB - British Institute of Non-Destructive Testing CY - Northampton AN - OPUS4-26006 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Koch, Matthias A1 - Bremser, Wolfram A1 - Köppen, Robert T1 - Novel reference materials for mycotoxins in food T2 - BERM-13 CY - Vienna, Austria DA - 2012-06-25 PY - 2012 AN - OPUS4-26007 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Prager, Jens A1 - Köppe, Enrico A1 - Bartholmai, Matthias T1 - Früherkennung von Strukturschäden mittels geführter Lamb-Wellen N2 - Eine Reihe von Prüfproblemen in der chemischen Industrie, in Kraftwerksanlagen und in Transportsystemen ist aufgrund schwieriger Zugangsmöglichkeiten nur begrenzt technisch bzw. wirtschaftlich effizient durchführbar. Das hier vorgestellte Projekt beinhaltet die Entwicklung eines Verfahrens der zerstörungsfreien Prüfung über weite Entfernungen (bis zu 100 m), das zum Einsatz in automatisierten Messsystemen bzw. zur Integration in Langzeitüberwachungssysteme geeignet ist. Grundlage des Verfahrens ist die gezielte Anregung und Auswertung von Lamb-Wellenmoden, wodurch eine effektive Unterscheidung von Fehler- und Formanzeigen sowie eine Klassifizierung unterschiedlicher Fehlertypen möglich werden. Der Vorteil der Nutzung geführter Wellen für die zerstörungsfreie Prüfung liegt in ihrer vergleichsweise guten Ausbreitungsfähigkeit über weite Entfernungen. Die sich daraus ergebenden Möglichkeiten der Untersuchung großer bzw. schwer zugänglicher Bereiche einer Struktur bieten innovative Ansätze für die Entwicklung robuster Structural-Health-Monitoring-Systeme (SHM). Erst durch die Verfügbarkeit leistungsfähiger Rechentechnik wird ein breiter Einsatz derartiger Verfahren möglich. Die Technik kann zur Materialcharakterisierung an ebenen bzw. zylindrischen, dünnwandigen Flächen aus Metall oder auch CFK genutzt werden. Adressierte Anwendungsfelder sind z.B. die Untersuchung von Flugzeugtragflächen oder Pipelines. Des Weiteren wird der Einsatz solcher Verfahren zur Überwachung sicherheitsrelevanter Bauteile z.B. aus Laminaten angestrebt, wie sie verstärkt in der Luft- und Raumfahrt Anwendung finden. Im Rahmen des Projekts wurde auf Grundlage vorhandener Technik (Wellenanregung mittels Ultraschall-Gruppenstrahlprüfköpfen) ein umfassendes Verständnis für die Technologie und anwendungsrelevante Parameter (Probenmaterial und -dimensionen, Welleneigenschaften, Anregungs-, Transmissions-, Reflektionscharakteristika) gewonnen und Algorithmen zur Erkennung von Schädigungsbildern (z.B. Riss, Loch, Verdünnung) entwickelt. Neben der Algorithmusentwicklung zur Detektion und Analyse von Schadstellen, lag ein Projektschwerpunkt in der Entwicklung einer geeigneten Gerätetechnik. Als sensorisches Elemente wurde Ultraschall-Gruppenstrahlertechnik eingesetzt. Besondere Anforderungen werden an die Technik zur Anregung der Wellenmoden unter Verwendung geeigneter Piezoaktoren gestellt. In diesem Bereich existiert bislang keine kommerziell erhältliche Gerätelösung, weshalb eine Neuentwicklug der Anregetechnik realisiert wurde. Speziell für die hohe Anzahl an Aktorkanälen, die benötigt wird, um unterschiedliche Moden und Wellenformen anzuregen, wurde eine äußerst leistungsfähige Anregeeinheit entwickelt. T2 - 16. GMA/ITG-Fachtagung 'Sensoren und Messsysteme' CY - Nürnberg, Germany DA - 22.05.2012 KW - Lamb-waves KW - Ultrasound KW - Non-destructive evaluation KW - Early-damage-detection KW - Structural health monitoring PY - 2012 SN - 978-3-9813484-0-8 U6 - https://doi.org/10.5162/sensoren2012/5.2.1 SP - 531 EP - 540 CY - Wunstorf AN - OPUS4-26008 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Köppe, Tabea A1 - Werner, Klaus-Dieter A1 - Kammermeier, Michael A1 - Bartholmai, Matthias T1 - Temperaturabhängige hochdynamische Untersuchungen des Systems Dehnungsmessstreifen/Klebstoff N2 - Dehnungsmessstreifen (DMS) gehören zu den Standardsensoren beim Messen mechanischer Größen. Sie finden Ihre Anwendung auf unterschiedlichen Gebieten, als sensorische Komponente in Messaufnehmern (z.B. Wägezelle, Kraftaufnehmer) oder für Dehnungsmessungen im Bereich der Strukturüberwachung unter anderem an Brücken oder Bauwerken. Sie werden in verschiedenen Größen geliefert und mit entsprechenden Klebstoffen auf der Objektoberfläche des Messobjekts an der jeweiligen Messstelle angebracht und an das Messsystem angeschlossen. Dieser Aufbau wird bei den verschiedenen Anwendungen unterschiedlichen Temperaturen und Umwelteinflüssen ausgesetzt. Dabei wird das System DMS/Klebstoff in seinen Eigenschaften verändert und das Ergebnis der Dehnungsmessung beeinflusst. Beispielsweise kann es zu einer Verfälschung der Messergebnisse kommen, wenn der Klebstoff die Dehnung des Messobjekts nicht vollständig auf den DMS überträgt, oder es kann eine Nullpunktverschiebung der Dehnungsmessung auftreten. An der Bundesanstalt für Materialforschung und -prüfung werden Fallversuche von Lager- und Transportbehältern durchgeführt. Für diese werden Dehnungsmessstreifen auf den Behälter angebracht um die Dehnung bzw. Verformung zu messen. Bei den Versuchen werden verschiedene Parameter berücksichtigt: Neben unterschiedlichen Fallhöhen (u.a. 9 m und 1 m) wird auch der Temperatureinfluss auf den Fallversuch z.B. bei -40 °C oder +100 °C untersucht. Zur Applizierung von DMS auf Objektoberflächen gibt es für verschiedene Anwendungsbedingungen (DMS-Typ, Objektoberflächenbeschaffenheit, Einsatztemperatur) von den DMS-Herstellern jeweils empfohlene Klebstoffe. Insbesondere für Anwendungsfälle mit hochdynamischer Belastung (Fallversuche, Crash-Tests) und großem Temperaturbereich ist es erforderlich, dass die Dehnungsmessstreifen zuverlässige Werte ausgeben. Dies ist nur gegeben, wenn der Klebstoff eine gute Verbindung zwischen Messobjekt und Dehnungsmessstreifen herstellt. T2 - 16. GMA/ITG-Fachtagung 'Sensoren und Messsysteme' CY - Nürnberg, Germany DA - 2012-05-22 KW - Hopkinson-Stab KW - Dehnungsmessstreifen KW - Temperaturabhängige Prüfung KW - Klebstoffe KW - Hochdynamische Untersuchungen PY - 2012 SN - 978-3-9813484-0-8 U6 - https://doi.org/10.5162/sensoren2012/4.1.4 N1 - Geburtsname von Köppe, Tabea: Wilk, T. - Birth name of Köppe, Tabea: Wilk, T. SP - 435 EP - 442 CY - Wunstorf AN - OPUS4-26009 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Klapper, H.S. A1 - Bäßler, Ralph A1 - Weidauer, K. A1 - Stürzbecher, Dieter T1 - Evaluation of suitability of high-alloyed materials for geothermal applications in the north German basin N2 - In the last years geothermal power has become a reliable and significant energy source. Because service conditions in geothermal facilities from deeply located aquifers are critical in terms of corrosion, materials selection is a very important issue. Preliminary evaluation of the materials suitability represents therefore a valuable strategy to ensure a secure and reliable operation of the facilities. In geothermal applications, the use of high-alloyed materials such as superaustenitic stainless steels, and nickel-based alloys has been considered as a good alternative because of their remarkable corrosion resistance and appropriate mechanical properties. Nevertheless, the corrosion behavior of those metallic materials in geothermal fluids at service conditions has not been determined in many cases. In this work, laboratory tests including electrochemical investigations and exposure tests at 100 °C and 150 °C (1,500 kPa) showed the limits of suitability concerning localized corrosion of three different, corrosion-resistant alloys in the highly saline fluid of the North German Basin. KW - Duplex steel KW - Geothermal KW - Localized corrosion KW - Nickel-based alloys KW - Stainless steel PY - 2012 U6 - https://doi.org/10.5006/1.3676631 SN - 0010-9312 SN - 1938-159X VL - 68 IS - 1 SP - 016001-1 EP - 016001-9 PB - National Association of Corrosion Engineers CY - Houston, Tex. AN - OPUS4-25980 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - GEN A1 - Griesche, Axel A1 - Beyer, Katrin A1 - Kannengießer, Thomas A1 - Calzada, E. T1 - Hydrogen diffusion measurements in steels using neutron imaging N2 - Revealing hydrogen embrittlement mechanisms in steels is of great interest to scientists and engineers. Neutron radiography makes it possible to measure in-situ hydrogen diffusion with high spatial and temporal resolution at concentrations as low as 20 ppm. We compare hydrogen-charged specimens with hydrogen-free reference specimens and use calibration standards to normalize the hydrogen concentrations. This allows quantitative tracking of the hydrogen concentration evolution as a function of time, space and temperature. Furthermore, a view into the material with 'neutron eyes' facilitates the detection of cavities that contain molecular hydrogen. KW - Hydrogen KW - Diffusion KW - Steel KW - Neutron radiography PY - 2012 UR - http://cdn.frm2.tum.de/fileadmin/stuff/information/documents/annualReports/Annual_Report_2011_online_version.pdf SP - 50 EP - 51 AN - OPUS4-25981 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Müller, Larissa A1 - Jakubowski, Norbert A1 - Hösl, Simone A1 - Roos, P. H. A1 - Scheler, Ch. T1 - Development of multiplex immunoassays for protein detection by LA-ICP-MS T2 - Winter Conference on Plasma Spectrochemistry 2012 CY - Tucson, AZ, USA DA - 2012-01-09 PY - 2012 N1 - Geburtsname von Müller, Larissa: Wäntig, L. - Birth name of Müller, Larissa: Wäntig, L. N1 - Geburtsname von Hösl, Simone: Hardt, S. - Birth name of Hösl, Simone: Hardt, S. AN - OPUS4-25983 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Schlegel, Moritz-Caspar A1 - Panne, Ulrich A1 - Emmerling, Franziska A1 - Müller, Urs T1 - Combining High Resolution X-ray Diffraction with Acoustic Levitation T2 - Seminar HZB CY - Berlin, Germany DA - 2012-05-30 PY - 2012 AN - OPUS4-25984 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Müller, Larissa A1 - Jakubowski, Norbert A1 - Hösl, Simone A1 - Roos, P. H. A1 - Scheler, Ch. T1 - Development of multiplex immunoassays for protein detection by LA-ICP-MA T2 - Winter Conference on Plasma Spectrochemistry 2012 CY - Tucson, AZ, USA DA - 2012-01-09 PY - 2012 N1 - Geburtsname von Müller, Larissa: Wäntig, L. - Birth name of Müller, Larissa: Wäntig, L. N1 - Geburtsname von Hösl, Simone: Hardt, S. - Birth name of Hösl, Simone: Hardt, S. AN - OPUS4-25985 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Meyer-Plath, Asmus A1 - Orts Gil, Guillermo A1 - Petrov, Sergej A1 - Oleszak, Franz A1 - Maneck, Heinz-Eberhard A1 - Dörfel, Ilona A1 - Haase, Oskar A1 - Richter, Silke A1 - Mach, Reinhard T1 - Plasma-thermal purification and annealing of carbon nanotubes N2 - We have developed a very fast and entirely gas-phase based purification technique for carbon nanotubes (CNT) that allows removing metal and metal oxide impurities with high effectiveness. CNT agglomerates from chemical vapor deposition (CVD) synthesis which contained carbon encapsulated catalysts were injected into an atmospheric plasma torch. Very high heating rates allow for quasi-instantaneous vaporization of catalyst particles. This way, metal vapors are hyposized to break mechanically instable encapsulations and effuse from incomplete ones faster than thermally induced graphitization stabilizes such particle encapsulations. The ash content of multi-walled (MW) CNT samples was reduced to less than 15% of the initial value within a few milliseconds. Also the metal content of single-walled (SW) CNT agglomerates was significantly reduced. Repeated injection of CNT agglomerates into the plasma torch resulted in higher-purity products of improved structural integrity and increased oxidation resistance. PY - 2012 U6 - https://doi.org/10.1016/j.carbon.2012.04.049 SN - 0008-6223 SN - 1873-3891 VL - 50 IS - 10 SP - 3934 EP - 3942 PB - Pergamon Press CY - New York, NY AN - OPUS4-25986 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - GEN A1 - Holm, Olaf A1 - Trapp, S. A1 - Dési, R. A1 - Rotard, W. A1 - Ihle, T. T1 - Phytoscreening - Probenahme und chemische Untersuchung von Bohrkernen aus Bäumen zur Erkundung von Grundwasserschäden und Bodenbelastungen KW - Phytoscreening KW - Leichtflüchtige chlorierte Kohlenwasserstoffe (LCKW) KW - Erkundung KW - Monitoring KW - Bäume PY - 2012 SN - 978-3-8114-9700-9 SP - 3751-1 - 3751-24 PB - C.F. Müller ET - 65. Ergänzungslieferung / 3. Auflage AN - OPUS4-25987 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Klobes, Peter T1 - BAM-Referenzmaterialien als Beitrag zur Qualitätssicherung in der Analytik: Historie, aktueller Stand und neue Entwicklungen T2 - Workshop "Neueste Methoden der Analytik und deren industriell nutzbares Anwendungsmaterial", Materials Valley e.V., c/o Heraeus Holding GmbH CY - Hanau, Germany DA - 2012-04-19 PY - 2012 AN - OPUS4-25989 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Drzymala, Sarah A1 - Koch, Matthias A1 - Marten, Silvia A1 - Risch, Stefan T1 - Highly Efficient Extraction and Clean-up of Zearalenone from Edible Oil T2 - 34. Mykotoxin-Workshop der Gesellschaft für Mykotoxinforschung e. V. CY - Braunschweig, Germany DA - 2012-05-14 PY - 2012 AN - OPUS4-25990 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Schlick-Hasper, Eva T1 - Experimentelle Untersuchungen zur Empfindlichkeit des Bubble Tests T2 - Ausschuss Gefahrgutbeförderung (AGGB-Verpackungen) CY - Bonn, Germany DA - 2012-06-05 PY - 2012 AN - OPUS4-25992 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Burkert, Andreas A1 - Lehmann, Jens T1 - Bedingungen für den schadensfreien Einsatz von nichtrostenden Stählen T2 - Nichtrostende Stähle - Eigenschaften und Anwendungen CY - Düsseldorf, Germany DA - 2012-05-30 PY - 2012 AN - OPUS4-25993 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Burkert, Andreas A1 - Fischer, Joachim T1 - Untersuchungen zur Bimetallkorrosion an Befestigungselementen für PV-Anlagen T2 - Korrosionsschutzseminar Bimetallkorrosion CY - Dresden, Germany DA - 2012-06-06 PY - 2012 AN - OPUS4-25994 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Gravenkamp, Hauke T1 - The simultion of ultrasonic guided waves using the Scaled Boundary Finite Element Method T2 - Forum Braunschweiger Akustiker CY - Helmstedt, Germany DA - 2012-05-31 PY - 2012 AN - OPUS4-25995 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Quercetti, Thomas A1 - Ballheimer, Viktor A1 - Droste, Bernhard A1 - Müller, Karsten T1 - Internal Cask-Content-Collisions During Drop Test of Transport Casks for Radioactive Materials T2 - Radioactive Materials Transport and Storage Conference and Exhibition 2012, Royal Geographical Society CY - London, England DA - 2012-05-23 PY - 2012 AN - OPUS4-25996 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Ewert, Uwe A1 - Redmer, Bernhard A1 - Rädel, Christoph A1 - Schnars, U. A1 - Henrich, R. A1 - Bavendiek, K. A1 - Jahn, M. T1 - Mobile computed tomography for inspection of large stationary components in nuclear and aerospace industries N2 - Mobile Tomographic Computer Aided Radiometry (TomoCAR) is based on the mechanical position control of an X-ray tube in front of an object and the application of a Digital Detector Array (DDA) behind it. Several hundred radiometric projections in small angle steps are acquired during the controlled movement of the X-ray tube along a preselected way. The tomographic or laminographic reconstruction allows the three-dimensional (3D) representation of flaws. A specially designed radiometric detector array with small internal unsharpness and high image contrast was used for visualization and sizing of planar and volumetric defects in austenitic welds in nuclear power plants. A German pilot study was successfully performed on the basis of the European network of inspection and qualification (ENIQ) guidelines. This was the precondition for several applications of TomoCAR in nuclear power stations in Germany and Switzerland. A versatile computed tomography (CT) system was developed on basis of the TomoCAR design for in situ inspection of large aircraft components under production conditions. A gate based planar computed tomograph was constructed and tested for inspection of the integrity of CFRP stringers, embedded in aircraft fibre composite shells. A probability of crack visibility >90% could be determined. KW - Computed tomography KW - X-ray KW - Welding KW - Fibre composites KW - Austenite KW - Nuclear KW - Aerospace PY - 2012 U6 - https://doi.org/10.2320/matertrans.I-M2011848 SN - 1345-9678 SN - 1347-5320 VL - 53 IS - 2 SP - 308 EP - 310 PB - Japan Institute of Metals CY - Sendai AN - OPUS4-25997 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Rahman, Mehbub-Ur A1 - Prager, Jens T1 - Simulation of lamb wave propagation with elastodynamic finite integration technique (EFIT) N2 - This paper presents the numerical modeling of the Lamb wave propagation in plate like structures with the Elastodynamic Finite Integration Technique (EFIT) and its validation with the measured results. In general, Lamb waves offer an attractive method to detect the defects inside long plate like structures efficiently. However, such a nondestructive testing (NDT) requires profound understanding of the Lamb wave propagation in the plates, generation of the symmetric and anti-symmetric modes of different orders and their interaction with the defects of the materials. Modern simulation tools based on numerical methods can be used to model this complex NDT situation. EFIT is an effective tool to model such problems in an efficient way. With the help of the simulation results obtained from the EFIT tool the propagation of different symmetric and antisymmetric Lamb wave modes is analyzed and thus a proper technique is developed to excite different modes and to separate them from each other precisely. A validation of the numerical results with the measured results is also presented. T2 - DAGA 2012 - 38. Jahrestagung für Akustik - Fortschritte der Akustik CY - Darmstadt, Deutschland DA - 2012-03-19 PY - 2012 SP - 953 EP - 954 PB - Deutsche Gesellschaft für Akustik e.V. AN - OPUS4-25999 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Hodoroaba, Vasile-Dan T1 - Silizium-Drift-Detektoren kontra ISO 15632:2002 T2 - Kolloquium 30 Jahre EDS-Analytik in Berlin CY - Berlin, Germany DA - 2012-05-22 PY - 2012 AN - OPUS4-25970 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Hertwig, Andreas A1 - Beck, Uwe A1 - Nooke, Alida A1 - Krause, Andreas A1 - Lohse, Volkmar A1 - Pavlik, J. A1 - Schröder, Volkmar A1 - Steinbach, J. T1 - On the use of plasma-deposited thin films for gas sensors with read-out based on the SPR effect T2 - PSE 2012, 13th International Conference on Plasma Surface Engineering CY - Garmisch-Partenkirchen, Germany DA - 2012-09-10 PY - 2012 AN - OPUS4-25971 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Teteris, Gundars A1 - Braun, Ulrike A1 - Stark, Wolfgang A1 - Brademann-Jock, Kerstin T1 - Monitoring of the curing of Epoxy Resins with different methods T2 - 17th International Conference Mechanics of Composite Materials CY - Riga, Latvia DA - 2012-05-28 PY - 2012 AN - OPUS4-25972 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Rolle, Annette A1 - Neumeyer, Tino A1 - Droste, Bernhard T1 - Leakage testing of sealed sources T2 - 13th International Congress of the International Radiation Protektion Association CY - Glasgow, Scotland DA - 2012-05-13 PY - 2012 AN - OPUS4-25974 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Rolle, Annette A1 - Probst, Ulrich A1 - Ballheimer, Viktor A1 - Müller, Karsten A1 - Winkler, H. P. T1 - Transport Condition effectis on the sealing system and activity release within spent fuel transport casks T2 - Radioactive Materials Transport and Storage Conference CY - London, England DA - 2012-05-22 PY - 2012 AN - OPUS4-25975 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Grothausmann, R. A1 - Zehl, G. A1 - Manke, I. A1 - Fiechter, S. A1 - Bogdanoff, P. A1 - Dorbandt, I. A1 - Kupsch, Andreas A1 - Lange, Axel A1 - Hentschel, Manfred P. A1 - Schumacher, G. A1 - Banhart, J. T1 - Dreidimensionale Charakterisierung von Katalysatornanopartikeln N2 - We present transmission electron microscope (TEM) tomography investigations of ruthenium-based fuel cell catalyst materials as employed in direct methanol fuel cells (DMFC). The digital three-dimensional representation of the samples not only enables detailed studies on number, size, and shape but also on the local orientation of the ruthenium particles to their support and their freely accessible surface area. The shape analysis shows the ruthenium particles deviate significantly from spherical symmetry which increases their surface to volume ratio. The morphological studies help to understand the structure formation mechanisms during the fabrication as well as the high effectiveness of these catalysts in the oxygen reduction reaction at the cathode side of fuel cells. KW - Radiography KW - Tomography KW - Neutrons KW - Polymer electrolyte membrane fuel cell (PEMFC) KW - Fuel cell stack PY - 2012 SN - 1862-5282 VL - 103 IS - 1 SP - 135 EP - 136 PB - Carl Hanser CY - München AN - OPUS4-25976 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Höhne, Christian A1 - Boehm, Rainer A1 - Prager, Jens T1 - Anwendung multidimensionaler analytischer Signale mit Single-Orthant-Spektren zur Aufbereitung von SAFT-Daten in der Ultraschallprüfung N2 - Die Rekonstruktion von Materialfehlern aus gemessenen HF-Bildern mit Hilfe der Synthetic Aperture Focussing Technique (SAFT) ist ein bildgebendes Verfahren der zerstörungsfreien Werkstoffprüfung. Die Auswertbarkeit der gewonnenen Ergebnisse wird dabei maßgeblich durch die Darstellung der mittels SAFT-Rekonstruktion zusammengestellten Daten bestimmt, welche zunächst nur in Form positiver und negativer Amplitudenwerte vorliegen. Die Aufbereitung dieser Daten erfolgt durch Bildung der Einhüllenden der Amplituden aus dem zugehörigen analytischen Signal. Die Erweiterung dieses, nur im eindimensionalen Fall eindeutig definierten, Konzepts auf zweidimensionale Signalverläufe erfolgt dabei in Form einer Mittelung über die Betragsquadrate aller möglichen mit Single-Orthant-Spektren (SO-Spektren) zu bildenden analytischen Signale. Es wird gezeigt dass dies der Verwendung einer Approximation als separables Signal entspricht und für den zweidimensionalen Fall eine Möglichkeit vorgeschlagen Signale anhand ihrer partiellen und totalen Hilberttransformationen auf Separabilität und damit Anwendbarkeit dieser Näherung zu testen. Die Ergebnisse der so durchgeführten Bildverbesserung werden am Beispiel einer zweidimensionalen SAFT-Rekonstruktion an verschiedenen Reflektorarten dargestellt. T2 - DAGA 2012 - 38. Jahrestagung für Akustik - Fortschritte der Akustik CY - Darmstadt, Deutschland DA - 2012-03-19 PY - 2012 VL - II SP - 957 EP - 958 PB - Deutsche Gesellschaft für Akustik e.V. AN - OPUS4-25977 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Gravenkamp, Hauke A1 - Song, C. A1 - Prager, Jens T1 - Numerische Berechnung der Dispersionseigenschaften von Lambwellen in Platten mit beliebiger Materialzusammensetzung N2 - Für alle Anwendungen geführter Wellen, beispielsweise in der zerstörungsfreien Materialprüfung, ist die exakte und effiziente Berechnung von Dispersionseigenschaften erforderlich. Dabei müssen für eine gegebene Frequenz die Anzahl der ausbreitungsfähigen Moden und deren Wellenzahlen sowie Phasen- und Gruppengeschwindigkeiten berechnet werden. Für den Fall von Lambwellen in homogenen isotropen Platten existieren analytische Gleichungen für die Wellenzahlen, die sich mit numerischen Nullstellensuchverfahren lösen lassen. Für komplexere Strukturen oder dreidimensionale, nicht rotationssymmetrische Wellenleiter ist die Entwicklung numerischer Methoden erforderlich. In der vorliegenden Arbeit wird ein numerisches Verfahren, basierend auf der Scaled Boundary Finite Element Method (SBFEM) [1] vorgestellt. Mit diesem lassen sich Dispersionseigenschaften von beliebigen Wellenleitern sehr effizient berechnen. Ergebnisse werden für den Fall von Wellen in Platten mit komplexer Materialzusammensetzung präsentiert. T2 - DAGA 2012 - 38. Jahrestagung für Akustik - Fortschritte der Akustik CY - Darmstadt, Deutschland DA - 2012-03-19 KW - Ultraschall KW - Lambwellen KW - Dispersion KW - Scaled boundary finite element method PY - 2012 SP - 1 EP - 2 PB - Deutsche Gesellschaft für Akustik e.V. AN - OPUS4-25978 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Bäßler, Ralph A1 - Weltschev, Margit T1 - UNS S44400 - A low cost and corrosion-resistant alternative to the austenite containing nickel for tank applications N2 - In Germany the “BAM-List - Requirements for Tanks for the Transport of Dangerous Goods” is the basis for substance-related prototype approvals for tank Containers undertaken by the BAM1 - Federal Institute for Materials Research and Testing. Compatibility evaluations of selected metallic materials as well as of polymeric gasket and lining materials under the influence of approximately 7200 dangerous goods have been published in the BAM-List since 1989. The ferritic Steel UNS S44400 (X2CrMoTil8-10, 1.4521) was originally developed as alternative for the austenitic grade AISI316L (X2CrNiMo 17-12-2, 1.4404). Due to its characteristic profile this Steel was qualified for applications requiring high strength values at concomitant adequate corrosion resistance. Because of the lack of Nickel this Steel is a cost-efficient alternative to the Ni-containing austenites. No corrosion test results of UNS S44400 under the influence of dangerous goods were published in the BAM-List so far. Only data on the behavior of AISI 316L are listed. Therefore test specimens of this Steel were exposed to selected corrosive substances in order to compare both steels. Due to the reduced alloy content a reduced corrosion resistance of the Steel UNS S44400 in acidic substances, such as formic acid, acetic acid and sulfuric acid, in comparison to the austenitic CrNiMosteels was expected but not observed. Tests in an alkaline medium showed sufficient resistance. T2 - NACE International Corrosion Conference 2012 CY - Salt Lake City, USA DA - 01.03.2012 KW - Steel KW - Dangerous goods KW - Transport tanks KW - Duplex steel KW - Corrosion KW - 1.4362 KW - X2CrNiN23-4 PY - 2012 SP - 1-7 (C2012-0001290) AN - OPUS4-25979 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Behnke, Thomas A1 - Würth, Christian A1 - Napp, J. A1 - Fischer, L. A1 - Alves, F. A1 - Schäferling, M. A1 - Resch-Genger, Ute T1 - Targeted ratiometric Nanosensors for the in Vivo Imaging of Tumor Hypoxia in the NIR spectral region T2 - Tag der Chemie CY - Regensburg, Germany DA - 2012-06-28 PY - 2012 AN - OPUS4-26020 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Behnke, Thomas A1 - Würth, Christian A1 - Hoffmann, Katrin A1 - Resch-Genger, Ute T1 - Rational Design and Absolute Quantum yields of NIR-Fluorescent Nanoparticls for Bioanalytical Applications T2 - Innovationsforum "Funktionelle Farbstoffe" CY - Bitterfeld-Wolfen, Germany DA - 2012-05-31 PY - 2012 AN - OPUS4-26021 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Behnke, Thomas A1 - Würth, Christian A1 - Mathejczyk, J. A1 - Napp, J. A1 - Hoffmann, Katrin A1 - Alves, F. A1 - Schäferling, M. A1 - Resch-Genger, Ute T1 - NIR-Fluorescent Polystyrene Nanoparticles: Design, Optical Characterization and Bioanalytical Applications T2 - Abteilungsseminar BfR CY - Berlin, Germany DA - 2012-06-15 PY - 2012 AN - OPUS4-26022 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Trela, Christiane A1 - Kind, Thomas A1 - Schubert, M. T1 - Positioning accuracy of an automatic scanning system for GPR measurement on concrete structures T2 - The 14th International Conference on Ground Penetrating Radar (GPR) CY - Shanghai, China DA - 2012-06-04 PY - 2012 AN - OPUS4-26023 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Berger, Wolfgang A1 - Kalbe, Ute A1 - Krüger, Oliver T1 - Validation of batch tests for the examination of leaching behaviour of organic pollutants from contaminated soils T2 - Eurosoil 2012 CY - Bari, Italy DA - 2012-07-02 PY - 2012 AN - OPUS4-26024 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Erhard, Anton A1 - Schuler, X. A1 - Otremba, Frank T1 - A new concept for steam generator tube integrity assessment N2 - Steam generator (SG) tubes are part of the primary circuit of pressurised water reactors and therefore also part of the pressure retaining boundary components. Furthermore, steam generator tubes are the components which guarantee the separation between the primary and secondary circuits. Therefore the knowledge of the loss of tube integrity as soon as possible is an essential. Optimised nondestructive testing methods based on the eddy current array technique are used to find material degradation, especially intergranular stress corrosion cracks during the periodical in-service inspection. These methods are supported by the measurement of the leakage rate during operation based on radioactivity and Tritium measurement regarding a high crack grows. Shutdown criteria depending on leakage rates which are described in the operation procedures but there are no specifications about the conditions for the measured leakage. Is the leakage coming from a single crack or are there multiple cracks or is this the leakage of a critical crack. With the help of FE calculations answer about the uncertainties of leakage rate versus critical crack grows were found. Shutdown criteria must guarantee to avoid critical crack sizes, i.e. between the measured tritium activity and the critical crack size must be a safety gap. KW - Steam generator tubes KW - Crack detection KW - Non destructive testing KW - Axial cracks KW - Critical crack sizes KW - Crack opening area KW - Leakage PY - 2012 U6 - https://doi.org/10.1016/j.nucengdes.2012.04.014 SN - 0029-5493 SN - 1872-759X VL - 249 SP - 297 EP - 303 PB - North-Holland Publ. Co. CY - Amsterdam AN - OPUS4-26025 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Zhao, J. A1 - Schlaad, H. A1 - Weidner, Steffen A1 - Antonietti, M. T1 - Synthesis of terpene-poly(ethylene oxide)s by t-BuP4-promoted anionic ring-opening polymerization N2 - Terpene alcohols (menthol, retinol, cholesterol, and betulin) together with the phosphazene base t-BuP4 were used as initiating systems for anionic ring-opening polymerization of ethylene oxide. The polymerizations were conducted in a controlled manner with the initial molar ratio of t-BuP4 to hydroxyl groups of 0.01–0.2, yielding a series of biohybrid polymers comprising terpene entities and poly(ethylene oxide) (PEO) chains with low polydispersities and tunable compositions (57–87 wt% of PEO). Samples were characterized by NMR and UV/visible spectroscopy, MALDI-TOF mass spectrometry, and size exclusion chromatography; thermal properties were studied by differential scanning calorimetry. The concept of this study opens a new toolbox of terpene-based biohybrid polymers with variable properties and functions. KW - ROMP KW - MALDI KW - Amphiphilic polymers KW - Polyethylene oxide PY - 2012 U6 - https://doi.org/10.1039/c1py00388g SN - 1759-9954 SN - 1759-9962 VL - 3 IS - 7 SP - 1763 EP - 1768 AN - OPUS4-26026 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Köppe, Tabea A1 - Werner, Klaus-Dieter A1 - Kammermeier, Michael A1 - Bartholmai, Matthias ED - Jirousek, O. ED - Kytýr, D. T1 - Temperature-dependent dynamic analysis of the system strain gauge/adhesive T2 - XIIIth Bilateral Czech/German symposium - Experimental methods and numerical simulation in engineering sciences CY - Telc, Czech Republic DA - 2012-06-05 KW - Hopkinson pressure bar KW - Temperature dependent and high dynamic load tests KW - System adhesive/ strain gauge PY - 2012 SN - 978-80-01-05062-0 N1 - Geburtsname von Köppe, Tabea: Wilk, T. - Birth name of Köppe, Tabea: Wilk, T. IS - 1 SP - 99 EP - 102 PB - CTU AN - OPUS4-26027 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Köppe, Enrico A1 - Bartholmai, Matthias A1 - Liers, A. A1 - Schiller, J. T1 - Radio-based multi-sensor system for person tracking and indoor positioning N2 - Sensor based person tracking is a challenging topic. The main objective is positioning in areas without GPS connection, i.e. indoors. A research project is carried out at BAM, Federal Institute for Materials Research and Testing, to develop and to validate a multi-sensor system for 3D localization. It combines body motion sensing and a guard system for the tracking and recording of the status of persons. The so named BodyGuard system was designed for sensor-based monitoring and radio-based transmission of the movement of a person. Algorithms were developed to transform the sensor data into a spatial coordinate. This paper describes how the BodyGuard system operates, which main components were used in the system, how the individual sensor data are converted into 3D motion data, with which algorithms the individual sensors are processed, how individual errors are compensated and how the sensor data are merged into a 3D Model. Final objective of the BodyGuard system is to determine the exact location of a person in a building, e.g. during fire-fighting operations. T2 - WPNC '12 - 9th Workshop on positioning, navigation and communication 2012 CY - Dresden, Germany DA - 2012-03-15 KW - Wireless sensor network (WSN) KW - Embedded systems KW - Sensor calibration and validation KW - Person tracking KW - Inertial navigation system KW - Inertial measurement unit PY - 2012 IS - PS 11 SP - 1 EP - 7 CY - Dresden AN - OPUS4-26028 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Huismann, Sven A1 - Weise, Frank A1 - Meng, Birgit A1 - Schneider, U. T1 - Transient strain of high strength concrete at elevated temperatures and the impact of polypropylene fibers N2 - This paper presents the results of an experimental study on the transient strain of high strength concrete (HSC) under heating up to 750 °C and the impact of polypropylene (PP) fibers. Concerning this topic only few results are available in the literature and systematic investigations are missing. However, basic knowledge is necessary for the understanding of the internal damage processes in the material as well as for heated structures. The transient strain during heating can be separated in two basic components: the free thermal strain and the mechanical strain. They were experimentally determined exemplarily for one HSC. For the determination of the mechanisms of transient strain and particularly the influence of PP fibers different techniques were applied. In this context the monitoring of the microcracking was done for the first time with acoustic emission analysis in combination with ultrasonic measurements. This new approach helps fundamentally to explain the impact of PP fibers on free thermal strain and mechanical strain during heating up. Furthermore weight loss measurements were carried out to characterize the moisture transport. It was shown that the PP fibers cause an acceleration of the moisture transport in the temperature range from 200 to 250 °C which leads to drying shrinkage in opposite direction to the free thermal strain. Hence this paper is a contribution to the general understanding of the impact of PP fibers in HSC at high temperatures and emphasizes the important influence of PP fibers on the thermal and mechanical induced strain of HSC. KW - High strength concrete KW - Polypropylene fibers KW - Elevated temperatures KW - Transient strain KW - Acoustic emission KW - Ultrasound PY - 2012 U6 - https://doi.org/10.1617/s11527-011-9798-6 SN - 1359-5997 SN - 1871-6873 VL - 45 IS - 5 SP - 793 EP - 801 PB - Springer CY - Dordrecht AN - OPUS4-26029 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CHAP A1 - Schönhals, Andreas A1 - Kremer, F. ED - Matyjaszewski, K. ED - Möller, M. T1 - Amorphous polymers N2 - The nature of the amorphous state in polymers is a classical topic in soft matter science with an immediate impact on modern technology. The chapter introduces the central concepts in this field and reviews a wealth of experimental information obtained by structural and dynamic techniques, such as neutron and X-ray scattering, broadband dielectric spectroscopy (BDS), nuclear magnetic resonance (NMR), and mechanical and specific heat spectroscopy, among others, covering dimensions between atomic (0.1 nm) to macroscopic (100 nm) length scales and timescales spanning more than 12 orders of magnitude, from picoseconds to seconds and longer. The theoretical models to describe the experimental findings are discussed in detail. Special attention is given to polymers having different architectures such as rings, stars, and block copolymers, and to the dynamics in nanometer thin layers. KW - Block copolymers KW - Chain dynamics KW - Dynamic glass transition KW - Glass transition temperature KW - Long-range order KW - Nanometric thin polymer layers KW - Ring polymers KW - Segmental dynamics KW - Short-range order KW - Star polymers PY - 2012 SN - 978-0-444-53349-4 U6 - https://doi.org/10.1016/B978-0-444-53349-4.00010-8 VL - 1 IS - Chapter 1.08 SP - 201 EP - 226 PB - Elsevier CY - Amsterdam AN - OPUS4-26010 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Manier, Charles-Alix A1 - Theiler, Geraldine A1 - Woydt, Mathias A1 - Ziegele, H. ED - Richard, C. ED - Bigerelle, M. ED - Mazeran, P.-E. ED - Bonis, M. T1 - Couches minces pour contacts lubrifies sous sollicitation en slip-rolling (glissement-roulement) et haute pression hertzienne initiale de contact T2 - Conception, fabrication et durabilité (JIFT 2009) CY - Compiègne, France DA - 2009-05-05 KW - Thin film coatings KW - DLC KW - Zr(CN) KW - ta-C KW - Slip-rolling KW - Mixed lubrication PY - 2012 SN - 978-2-911256-80-6 SP - 211 EP - 223 PB - TRANSVALOR - Presses des Mines AN - OPUS4-26011 LA - fra AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Schälike, Stefan A1 - Wehrstedt, Klaus-Dieter A1 - Schönbucher, A. ED - Rademaeker, E. D. T1 - Flame heights of di-tert-butyl peroxide pool fires - experimental study and modelling T2 - CISAP5 - 5th International Conference on Safety and Environment in Process and Power Industry CY - Milan, Italy DA - 2012-06-03 KW - Pool fire KW - Di-tert-butyl peroxide KW - Flame height KW - Froude number correlation PY - 2012 SN - 978-88-95608-17-4 SN - 1974-9791 N1 - Serientitel: Chemical engineering transactions – Series title: Chemical engineering transactions IS - 26 SP - 363 EP - 368 PB - Assoziatione Italiana di Ingegneria Chimica CY - Milano AN - OPUS4-26012 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Braun, Ulrike T1 - Beständigkeit von Medizinprodukten T2 - Life Science Day 2012 CY - Berlin, Germany DA - 2012-06-08 PY - 2012 AN - OPUS4-26013 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Wäsche, Rolf A1 - Czichholz, G. A1 - Steinborn, Gabriele T1 - Wear behaviour of yttrium titanate ceramics under gross slip fretting conditions T2 - Int. Conf. Nordic Countries (NordTrib 2012) CY - Trondheim, Norway DA - 2012-06-12 PY - 2012 AN - OPUS4-26014 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Pecher, Heike Susanne A1 - Weller, Michael G. T1 - Development of an epoxide-based monolith for affinity chromatography T2 - MSS 2012 5th Monolith Summer School and Symposium CY - Portorož-Ajdovšcina, Slovenia DA - 2012-06-01 PY - 2012 AN - OPUS4-26018 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Grandke, Julia A1 - Oberleitner, Lidia A1 - Schneider, Rudolf A1 - Mallwitz, F. A1 - Garbe, L.-A. T1 - Immonoassays for Caffeine T2 - Analytica 2012 CY - Munich, Germany DA - 2012-04-17 PY - 2012 AN - OPUS4-26019 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Burkert, Andreas A1 - Lehmann, Jens A1 - Gümpel, P. A1 - Wilbert, Hans-Peter T1 - Edelstahl Rostfrei - Alternativen zu den Standardausteniten N2 - Die Rohstoffpreise sind seit einigen Jahren starken Schwankungen unterworfen und weisen insgesamt eine steigende Tendenz auf. Dies kommt gerade bei den weit ver-breiteten Standardausteniten durch äußerst volatile Legierungszuschläge zum Ausdruck, für die in erster Linie das Legierungselement Nickel (Ni) entscheidend ist. Die-ser Umstand führt bei immer mehr Verarbeitern von Edelstahl Rostfrei in Deutschland zur Suche nach alternativen Edelstahlgüten, um die Wettbewerbsfähigkeit auch zukünftig sicherzustellen. KW - Nichtrostender Stahl KW - Austenit KW - Ferrit KW - Lean Duplex KW - Korrosionsverhalten PY - 2012 SN - 0178-6571 VL - 06 SP - 52 EP - 55 PB - Montan- u. Wirtschaftsverlag GmbH CY - Düsseldorf AN - OPUS4-26030 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Woydt, Mathias T1 - Nullverschleiß T2 - Tribologie-Kolloquium (TU Chemnitz) CY - Chemnitz, Germany DA - 2012-06-21 PY - 2012 AN - OPUS4-26031 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Mente, Tobias A1 - Böllinghaus, Thomas T1 - Stand der Technik des Schweißens hoch- und ultrahochfester Feinkornbaustähle T2 - 1st Alform Welding Day CY - Linz, Austria DA - 2012-06-05 PY - 2012 AN - OPUS4-26032 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Böllinghaus, Thomas A1 - Mente, Tobias T1 - Vermeidung von Rissen beim Schweißen von Rohrleitungen T2 - DVM-Tag 2011 "Bauteilzuverlässigkeit - Schäden und ihre Vermeidung" CY - Berlin, Germany DA - 2012-05-04 PY - 2012 AN - OPUS4-26033 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Gumenyuk, Andrey T1 - Anwendung des Laser-Hybridverfahrens zum Schweißen von Rohrkonstuktionen T2 - BAM-Kolloquium CY - Berlin, Germany DA - 2012-06-06 PY - 2012 AN - OPUS4-26035 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Gumenyuk, Andrey A1 - Rethmeier, Michael T1 - Laser-MSG-Hybridschweißen T2 - 10. Cottbuser Leichtbauworkshop 2012 CY - Cottbus, Germany DA - 2012-05-22 PY - 2012 AN - OPUS4-26036 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Schwarz, G. A1 - Weller, Michael G. A1 - Benda, D. A1 - Linscheid, M. T1 - MeCAT – Analysis of labeled proteins by HighMass-Q-TOF-MS T2 - Joint Conference of PMSS and DGMS CY - Poznan, Poland DA - 2012-03-04 PY - 2012 AN - OPUS4-26037 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Schwarz, G. A1 - Weller, Michael G. A1 - Benda, D. A1 - Linscheid, M. T1 - MeCAT – Fragmentation behavior of labeled peptides and relative quantification T2 - Joint Conference of PMSS and DGMS CY - Poznan, Poland DA - 2012-03-04 PY - 2012 AN - OPUS4-26038 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Müller, Karsten A1 - Musolff, André A1 - Grünewald, Heike A1 - Quercetti, Thomas T1 - Quality Assurance within Drop Testing of Containers for Radioactive Material T2 - RamTransport 2012, 9th International Conference on Radidoactive Material Transport and Storage CY - London, England DA - 2012-05-22 PY - 2012 AN - OPUS4-25960 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Weber, Mike A1 - Völzke, Holger A1 - Zencker, Uwe T1 - Influence of dense near-surface reinforcement layers in concrete slabs of test stand foundatins T2 - RAMTRANSPORT 2012 CY - London, England DA - 2012-05-22 PY - 2012 AN - OPUS4-25961 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - von der Ehe, Kerstin A1 - Wolff, Dietmar A1 - Böhning, Martin T1 - Investigation of Properties of (U)HMW-PE under the Influence of Gamma Irradiation T2 - Jahrestagung Kerntechnik 2012 CY - Stuttgart, Germany DA - 2012-05-22 PY - 2012 AN - OPUS4-25963 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Eisenacher, Germar A1 - Neumann, Martin A1 - Nitz, Thilo A1 - Wille, Frank T1 - Moisture content of wood - influence on mechanical ehavior of wood filed impact limiter and importance for quality surveillance during manufacturing T2 - Rdioactive Materials Transport and Storage 2012 Conference (Ramtransport 2012) CY - London, England DA - 2012-05-22 PY - 2012 AN - OPUS4-25964 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Kalbe, Ute A1 - Krüger, Oliver A1 - Berger, Wolfgang A1 - Wachtendorf, Volker A1 - Hally, St. T1 - Development of leaching procedures for synthetic turf systems T2 - WASCON 2012 CY - Gothenburg, Sweden DA - 2012-05-29 PY - 2012 AN - OPUS4-25965 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Symietz, Christian A1 - Lehmann, Erhard A1 - Gildenhaar, Renate A1 - Berger, Georg A1 - Krüger, Jörg T1 - Femtosecond laser induced fixation of bioactive ceramic powder on Ti6Al4V bone implantat material T2 - 2nd International Symposium on Materials Processing Science with Lasers as Energy Sources CY - Clausthal-Zellerfeld, Germany DA - 2012-04-24 PY - 2012 AN - OPUS4-25966 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Unger, Wolfgang T1 - Metrology in Surface and Micro/Nano Analysis T2 - CCQM Plenary Meeting 2012 CY - Paris, France DA - 2012-04-19 PY - 2012 AN - OPUS4-25967 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Dietrich, Paul A1 - Unger, Wolfgang T1 - How successful is surface chemical analysis in the characterization of (model) diagnostic devices exploiting probe-target interaction? T2 - 65th IUVSTA Workshop "Measuring molecular adsorption at the solid liquid interface" CY - Peckforton, England DA - 2012-05-14 PY - 2012 AN - OPUS4-25968 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Böhning, Martin T1 - Gas transport in glassy polymers and PNCs - experiment, analysis, modeling of diffusion, sorption and dilation T2 - Workshop: Polymers, University of Zagreb, Faculty of Mechanical Engineering and Naval Architecture, Laboratory for Non-Metals CY - Zagreb, Croatia DA - 2012-05-23 PY - 2012 AN - OPUS4-25969 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Jakubowski, Norbert T1 - Novel challenges for elemental analysis T2 - Bruker European Sales meeting CY - Berlin, Germany DA - 2012-04-25 PY - 2012 AN - OPUS4-25950 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Balski, Matthias A1 - Svatko, Zhanna A1 - Richter, Silke A1 - Kipphardt, Heinrich A1 - Jakubowski, Norbert A1 - Panne, Ulrich T1 - Silicium-Analytik mit direkten Feststofftechniken, Möglichkeiten und Grenzen T2 - 4. Anwenderseminar direkte Feststofftechniken CY - Berlin, Germany DA - 2012-05-10 PY - 2012 AN - OPUS4-25951 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Weidner, Steffen A1 - Breßler, Ingo A1 - Falkenhagen, Jana T1 - MassChrom2D - a software that combines chromatographic separation and mass spectrometric identification to analyze the composition of copolymers T2 - 60th ASMS Conference on Mass Spectrometry and Allied Topics CY - Vancouver, Canada DA - 2012-05-20 PY - 2012 AN - OPUS4-25954 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Hoskins, Jessica A1 - Weidner, Steffen A1 - Falkenhagen, Jana T1 - Liquid Chromatographic Separation and Mass Spectral Characterization of Randomly Branched Aliphatic Polyesters T2 - 60th ASMS Conference on Mass Spectrometry and Allied Topics CY - Vancouver, Canada DA - 2012-05-20 PY - 2012 AN - OPUS4-25956 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Marotzke, Christian T1 - Interfacial failure in composites under off-axis loading T2 - MCM 2012 Conference CY - Riga, Latvia DA - 2012-05-29 PY - 2012 AN - OPUS4-25957 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Lehmann, Jens A1 - Burkert, Andreas T1 - Oberfläche oder Legierungsgehalt - was bestimmt die Beständigkeit nichtrostender Stähle? T2 - ISC 2012 (Internationale Sales Conference) CY - Hanover, Germany DA - 2012-05-30 PY - 2012 AN - OPUS4-25958 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Beck, Uwe A1 - Hönig, D. A1 - Schneider, S. A1 - Domnick, R. A1 - Belzner, M. A1 - Hertwig, Andreas A1 - Stephanowitz, Ralph A1 - Sahre, Mario A1 - Weise, Matthias T1 - Fabry-Perot-based layer stacks for ellipsometric encoding - Embedded public, hidden, and forensic information for product authentication N2 - Public, hidden, and forensic features either encoded or directly legible are used for authentication. Fabry-Perot layer stacks as information carriers in combination with imaging ellipsometry as optical read-out system provide all-in-one anti-counterfeiting capability that may establish the new security level 'encoded forensic'. Different layer designs are described with regard to all three security levels: public features (e.g. color and tilt effect) perceptible by the human eye, hidden features (e.g. spectroscopic response in the UV or IR), and forensic features (ellipsometric quantities Ψ and Δ as a function of wavelength λ and angle of incidence AOI). Physically uncloneable functions (PUF) could be realized as a result of a multi-material and a multi-parameter deposition approach as well as by means of specific design features of the Fabry-Perot layer stack. Hence, they are not subject to any reverse engineering strategies. Examples of stratified, micro-structured, and laser-modified Fabry-Perot layer systems are considered that may be used at all perception levels (e.g. human eye, bar code reader, and imaging ellipsometry) for authentication against product counterfeiting and related areas. -------------------------------------------------------------------------------------------------------------------- Zur Authentifizierung werden offene, versteckte und forensische Merkmale entweder codiert oder direkt auslesbar verwendet. Mit Fabry-Perot Schichtsystemen als Informationsträger in Kombination mit der abbildenden Ellipsometrie als optischem Auslesesystem steht ein 'all-in-one' Fälschungsschutz-System zur Verfügung, das ein neues Sicherheitsniveau 'kodiert-forensisch' darstellt. Es werden unterschiedliche Schichtdesigns beschrieben, mit denen alle drei Sicherheitsniveaus realisiert werden können: offene Merkmale (z.B. Farbe und Kippeffekt), die mit dem menschlichen Auge wahrnehmbar sind, versteckte Merkmale (z.B. die spektrale Antwort im Sichtbaren oder im IR) sowie forensische Merkmale (ellipsometrische Größen Ψ und Δ als Funktion der Wellenlänge λ und des Einfallswinkels AOI). Physikalisch nicht klonbare Funktionen (PUF) können im Ergebnis einer Multi-Material- und Multi-Parameter Beschichtungsstrategie sowie durch spezifische Design-Merkmale des Fabry-Perot Schichtsystems realisiert werden. Folglich sind solche Schichtsysteme dem 'reverse engineering' nicht zugänglich. Es werden Beispiele für lateral ausgedehnte, mikrostrukturierte und Laser modifizierte Schichtsysteme auf verschiedenen Ausleseniveaus (menschliches Auge, Barcode-Lesegerät, abbildendes Ellipsometer) vorgestellt, die zur Authentifizierung von Produkten und verwandte Gebiete geeignet sind. KW - Fabry-Perot Schichten KW - Ellipsometrie KW - Produkt- und Markenschutz PY - 2012 U6 - https://doi.org/10.1002/vipr.201200494 SN - 0947-076X SN - 1522-2454 VL - 24 IS - 4 SP - 6 EP - 11 PB - Wiley-VCH Verl. CY - Weinheim AN - OPUS4-26180 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Thöns, Sebastian A1 - Döhler, M. ED - Del Grosso, A.E. ED - Basso, P. T1 - Structural reliability updating with stochastic subspace damage detection information T2 - EACS 2012 - Smart structures - 5th European conference on structural control CY - Genoa, Italy DA - 2012-06-18 KW - Stochastic subspace KW - Structural reliability KW - Bayesian updating KW - Probability od detection PY - 2012 SN - 978-88-95023-13-7 IS - Paper #008 SP - 1 EP - 12 PB - Erredi Grafiche Editoriali AN - OPUS4-26181 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Paul, Andrea A1 - Dziallas, C. A1 - Zwirnmann, E. A1 - Gjessing, E.T. A1 - Grossart, H.-P. T1 - UV irradiation of natural organic matter (NOM): impact on organic carbon and bacteria N2 - UV-induced transformation of dissolved organic matter (DOC) is often accompanied by reduction of molecular weight and aromaticity and an increase of low-molecular weight (LMW) matter that can be utilized as a substrate by heterotrophic bacteria. Moreover, the generation of reactive transients and mineralization of DOC occurs. For a better understanding of the modification that starts after irradiation and to distinguish between possible chemical and biological modifications, we selected different natural organic matter (NOM) from Norway and Germany. The aqueous solutions were treated by UV irradiation and divided into two aliquot samples. NaN3 anti-bacterial treatment was applied to one sample, and high-pressure size-exclusion chromatography (HPSEC) analysis was used for both. In all samples, we found typical modifications of NOM after UV irradiation. Incubation (>7 days) of UV-irradiated NOM samples resulted in lower levels of LMW matter and increased aromaticity. Parallel to these changes of carbon fractions, an increase in bacterial cell numbers was observed. Addition of NaN3 to NOM, however, inhibited the reduction of LMW matter, indicating that microbial activity accounted for the observed changes in NOM. Analysis of the bacterial community composition by denaturing gradient gel electrophoresis (DGGE) of the amplified 16S rRNA genes revealed that bacterial communities of non-irradiated and UV-irradiated NOM were different and that UV selected for specific members of α-proteobacteria, β-proteobacteria, and Bacteriodetes. Our results imply that after UV-irradiation of NOM, specific bacterial members are well adapted to low pH, high LMW DOC concentrations, and oxidative stress, and therefore thrive well on UV-irradiated humic matter. KW - Humic matter KW - Bacteria KW - High-pressure size-exclusion chromatography (HPSEC) KW - UVC KW - Denaturing gradient gel electrophoresis (DGGE) KW - Sequencing PY - 2012 U6 - https://doi.org/10.1007/s00027-011-0239-y SN - 1015-1621 SN - 0036-7842 VL - 74 IS - 3 SP - 443 EP - 454 PB - Springer CY - Basel ; Heidelberg AN - OPUS4-26182 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Drescher, Daniela A1 - Kneipp, Janina T1 - Nanomaterials in complex biological systems: insights from Raman spectroscopy N2 - The interaction of nanomaterials with biomolecules, cells, and organisms plays an important role in cell biology, toxicology, and nanotechnology. Spontaneous Raman scattering can be used to probe biomolecules, cells, whole animals, and nanomaterials alike, opening interesting avenues to study the interaction of nanoparticles with complex biological systems. In this review we discuss work in biomedical Raman spectroscopy that has either been concerned directly with nanostructures and biosystems, or that indicates important directions for successful future studies on processes associated with nano-bio-interactions. KW - Cells KW - Nanomaterials KW - Raman PY - 2012 U6 - https://doi.org/10.1039/c2cs35127g SN - 0306-0012 SN - 1460-4744 VL - 41 IS - 17 SP - 5780 EP - 5799 PB - Royal Society of Chemistry CY - London AN - OPUS4-26184 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Gross, Thomas A1 - Dietrich, Paul A1 - Unger, Wolfgang T1 - Analytik an Microarrays mittels physikalischer Methoden der chemischen Oberflächenanalytik T2 - Workshop "Funktionalisierung von Oberflächen für bioananlytische Anwendungen" CY - Berlin, Germany DA - 2012-07-24 PY - 2012 AN - OPUS4-26185 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Mishra, Kirti Bhushan A1 - Wehrstedt, Klaus-Dieter A1 - Krebs, Holger T1 - Lessons learned from recent fuel storage fires N2 - Industrial fire and explosion hazards due to accidents in fuel storage units have gained a considerable attention in the recent times. Both the regulatory bodies and scientific communities are heavily concerned about the proper safety measures to avoid such calamities in future. This paper aims to bring some essentials related to the hazards arose from the recent fuel storage fire accident occurred in Buncefield, UK (2005), Puerto Rico, USA (2009) and Sitapura, India (2009). The potential similarities behind occurrence of these accidents are studied. The applicability of various methods (models) and also computer simulations to estimate the safety distances according to the international standards for both explosion and fire hazard are verified. The overpressures caused by the Vapor Cloud Explosion (VCE) and radiation flux emitted by the fire are considered for respective explosion and fire hazard estimations. The prime focus is placed on the regulations laid down by the National Fire Protection Agency of the United States and the European Norms. T2 - ICCEU 2012 - 11th International conference on combustion and energy utilization CY - Coimbra, Portugal DA - 2012-05-09 KW - Industrial fires KW - Storage units KW - Safety measures KW - Explosion KW - Overpressure KW - CFD simulation PY - 2012 SP - 1 EP - 10(?) AN - OPUS4-26186 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Bahlmann, Arnold A1 - Carvalho, José Joao A1 - Weller, Michael G. A1 - Panne, Ulrich A1 - Schneider, Rudolf T1 - Immunoassays as high-throughput tools: monitoring spatial and temporal variations of carbamazepine, caffeine and cetirizine in surface and wastewaters N2 - Carbamazepine (CBZ), caffeine and cetirizine were monitored by enzyme-linked immunosorbent assays (ELISAs) in surface and wastewaters from Berlin, Germany. This fast and cost-efficient method enabled to assess the spatial and temporal variation of these anthropogenic markers in a high-throughput screening. CBZ and cetirizine were detected by the same antibody, which selectively discriminates between both compounds depending on the pH value used in the incubation step. To our best knowledge, this is the first dual-analyte immunoassay working with a single antibody. The frequent sampling with 487 samples being processed allowed for the repeated detection of unusually high concentrations of CBZ and caffeine. ELISA results correlate well with the ones obtained by liquid chromatography tandem mass spectrometry (LC-MS/MS). Caffeine concentrations found in surface waters were elevated by combined sewer overflows after stormwater events. During the hay fever season, the concentrations of the antihistamine drug cetirizine increased in both surface and wastewaters. Caffeine was almost completely removed during wastewater treatment, while CBZ and cetirizine were found to be more persistent. The maximum concentrations of caffeine, CBZ and cetirizine found in influent wastewater by LC–MS/MS were 470, 5.0 and 0.49 µg L-1, while in effluent wastewater the concentrations were 0.22, 4.5 and 0.51 µg L-1, respectively. For surface waters, concentrations up to 3.3, 4.5 and 0.72 µg L-1 were found, respectively. KW - ELISA KW - Carbamazepine KW - Caffeine KW - Cetirizine KW - Environmental monitoring KW - Anthropogenic markers PY - 2012 U6 - https://doi.org/10.1016/j.chemosphere.2012.05.020 SN - 0045-6535 SN - 0366-7111 VL - 89 IS - 11 SP - 1278 EP - 1286 PB - Elsevier Science CY - Kidlington, Oxford AN - OPUS4-26187 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Scholz, Christian A1 - Spaltmann, Dirk A1 - Woydt, Mathias T1 - Highly stressed and low friction slip-rolling contacts through environmental friendly thin film coatings T2 - 6. Int. Conf. Technological Advances of Thin Films & Surface Coatings (ThinFilms 2012) CY - Singapore DA - 2012-07-14 PY - 2012 AN - OPUS4-26188 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Burbank, John Theodore A1 - Scholz, Christian A1 - Woydt, Mathias T1 - Reactive boundary layers in metallic rolling contacts N2 - The running-in phase of mechanical systems is critical from a tribological standpoint, because microcracks, a cause of material failure, can appear during this phase of heightened friction and wear. The ultimate goal of this current work is to transfer the running-in phase into the finishing process through the preconditioning of novel, high toughness steel bearings and compare these to conventionally used steels. This has been achieved both through the generation of tribo-reactive films and cold work hardening of the steel surface substrates. Determination of the presence of reactive tribofilms was achieved via SEM-EDX with Element-Mapping, whereas the effects of cold work hardening on the samples were observed through measurement of localized hardness and residual stresses. Both tribofilm-protected samples and cold work hardened samples were then subjected to long term slip-rolling testing (10,000,000 cycles, approximately 19 days) to determine any changes in friction behaviour or wear performance. T2 - Gordon Research Conf.: Tribology CY - Waterville, ME, USA DA - 2012-07-08 PY - 2012 AN - OPUS4-26189 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Jaunich, Matthias A1 - Stark, Wolfgang A1 - Wolff, Dietmar T1 - Low temperature - For a seal this depends on the applied material T2 - DKT 2012 - German Rubber Conference CY - Nuremberg, Germany DA - 2012-07-02 PY - 2012 IS - 10-2330_5-L-1530 SP - 1 EP - 4 PB - Deutsche Kautschuk-Gesellschaft CY - Frankfurt am Main AN - OPUS4-26190 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Schendler, Thomas T1 - Ereignisauswertung der KAS - Beispiele und Konsequenzen T2 - Sicherheitstechnischer Erfahrungsaustausch, LUBW Baden Würtemberg CY - Karlsruhe, Germany DA - 2012-04-17 PY - 2012 AN - OPUS4-26191 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Schendler, Thomas A1 - Balke, Christian T1 - Ereignisauswertung der KAS - ausgewählte Schadenbeispiele und Konsequenzen T2 - VdS-Seminar, 13. Meinungs- und Erfahrungasaustausch für Sachverständige nach § 29a Abs.1 BlmSchG, Immissionsschutz- und Störfallbeauftragte CY - Cologne, Germany DA - 2012-06-21 PY - 2012 AN - OPUS4-26192 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Wendt, Mario A1 - Krebber, Katerina A1 - Glötzl, R. ED - Boller, C. T1 - Development of a PMMA-POF based fiber optic inclinometer with smart transport and installation characteristics T2 - EWSHM'12 - 6th European workshop on structural health monitoring 2012 CY - Dresden, Germany DA - 2012-07-03 PY - 2012 SN - 978-3-940283-41-2 IS - Chapt. Optical Sensors SP - 411 EP - 416 CY - Berlin AN - OPUS4-26193 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Schröder, Volkmar A1 - Schendler, Thomas T1 - Aerosols - Hazards and Safe Handling T2 - IVSS-Workshop "Gases under Pressure" CY - Frankfurt am Main, Germany DA - 2012-06-21 PY - 2012 AN - OPUS4-26194 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Kasper, J. A1 - Hermanns, M.I. A1 - Bantz, C. A1 - Koshkina, Olga A1 - Lang, Thomas A1 - Maskos, Michael A1 - Pohl, C. A1 - Unger, R. E. A1 - Kirkpatrick, C.J. T1 - Interactions of silica nanoparticles with lung epithelial cells and the association to flotillins N2 - Amorphous silica nanoparticles (aSNPs) gain increasing popularity for industrial and therapeutic claims. The lung with its surface area of 1006#8211;140 m² displays an ideal target for therapeutic approaches, but it represents also a serious area of attack for harmful nanomaterials. The exact nature of the cytotoxic effects of NPs is still unknown. Furthermore, cellular pathways and the destiny of internalized NPs are still poorly understood. Therefore, we examined the cytotoxicity (MTS, LDH) and inflammatory responses (IL-8) for different-sized aSNPs (30, 70, 300 nm) on our lung epithelial cells line NCI H441 and endothelial cell line ISO-HAS-1. Additionally, colocalization studies have been conducted via immunofluorescence staining for flotillin-1- and flotillin-2-bearing endocytic vesicles. Subsequently, the relevance of flotillins concerning the viability of aSNP-exposed epithelial cells has been evaluated using flotillin-1/2 depleted cells (siRNA). This study reveals the relevance of the nanoparticle size regarding cytotoxicity (MTS, LDH) and inflammatory responses (IL-8), whereat the smaller the size of the nanoparticle is, the more harmful are the effects. All different aSNP sizes have been incorporated in flotillin-1- and flotillin-2-labelled vesicles in lung epithelial and endothelial cells, which display a marker for late endosomal or lysosomal structures and appear to exhibit a clathrin- or caveolae-independent mode of endocytosis. Flotillin-depleted H441 showed a clearly decreased uptake of aSNPs. Additionally, the viability of aSNP-exposed cells was reduced in these cells. These findings indicate a contribution of flotillins in as yet unknown (clathrin or caveolae-independent) endocytosis mechanisms and (or) endosomal storage. KW - Silica nanoparticles KW - Alveolar-capillary barrier KW - Lung epithelial cells KW - Endothelial cells KW - Endocytosis KW - Flotillin-1 KW - Flotillin-2 KW - Cytotoxicity KW - Inflammatory response PY - 2012 UR - http://link.springer.com/content/pdf/10.1007%2Fs00204-012-0876-5 U6 - https://doi.org/10.1007/s00204-012-0876-5 SN - 0340-5761 SN - 1432-0738 SP - 1 EP - 13(?) PB - Springer CY - Berlin ; Heidelberg [u.a.] AN - OPUS4-26195 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Bonse, Jörn A1 - Krüger, Jörg A1 - Höhm, S. A1 - Rosenfeld, A. T1 - Femtosecond laser-induced periodic surface structures N2 - The formation of laser-induced periodic surface structures (LIPSS) in different materials (metals, semiconductors, and dielectrics) upon irradiation with linearly polarized fs-laser pulses (τ~30–150 fs, λ~800 nm) in air environment is studied experimentally and theoretically. In metals, predominantly low-spatial-frequency-LIPSS with periods close to the laser wavelength λ are observed perpendicular to the polarization. Under specific irradiation conditions, high-spatial-frequency-LIPSS with sub-100-nm spatial periods (~λ/10) can be generated. For semiconductors, the impact of transient changes of the optical properties to the LIPSS periods is analyzed theoretically and experimentally. In dielectrics, the importance of transient excitation stages in the LIPSS formation is demonstrated experimentally using (multiple) double-fs-laser-pulse irradiation sequences. A characteristic decrease of the LIPSS periods is observed for double-pulse delays of less than 2 ps. KW - Laser-induced periodic surface structures (LIPSS) KW - Femtosecond laser ablation KW - Ultrafast optical techniques KW - Silicon KW - Titanium KW - Silica PY - 2012 U6 - https://doi.org/10.2351/1.4712658 SN - 1042-346X SN - 1938-1387 VL - 24 IS - 4 SP - 042006-1 EP - 042006-7 PB - Laser Institute of America CY - Orlando, Fla., USA AN - OPUS4-26198 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Schalau, Bernd T1 - AUSTAL2000 die neue VDI 3783 Blatt 1? T2 - AA "Auswirkungen von Stoff- und Energiefreisetzungen", ProcessNet CY - Frankfurt am Main, Germany DA - 2012-05-09 PY - 2012 AN - OPUS4-26170 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Wille, Frank A1 - Ballheimer, Viktor A1 - Rolle, Annette A1 - Droste, Bernhard T1 - Mechanical Behaviour of High Burn-Up SNF under Normal and Accident Transport Conditions - Present Approaches and Perspectives T2 - PSAM 11 CY - Helsinki, Finland DA - 2012-06-25 PY - 2012 AN - OPUS4-26171 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Wille, Frank A1 - Ballheimer, Viktor A1 - Sterthaus, Jens T1 - Regelwerksentwicklung für die Auslegung von lastanschlagpunkten T2 - 3. RAM-Behältersicherheitstage 2012, BAM CY - Berlin, Germany DA - 2012-03-22 PY - 2012 AN - OPUS4-26172 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Pistol, Klaus A1 - Weise, Frank A1 - Meng, Birgit T1 - Polypropylen-Fasern in Hochleistungsbetonen - Wirkungsmechanismen im Brandfall N2 - Bauteile bzw. Tragwerke aus Hochleistungsbetonen müssen in der Regel gegen brandinduzierte Abplatzungen mit geeigneten Maßnahmen geschützt werden, um einen ausreichenden Feuerwiderstand im Brandfall zu gewährleisten. Die bisher wirtschaftlich und technologisch sinnvollste Methode zur Verhinderung von explosionsartigen Betonabplatzungen im Brandfall ist die Zugabe von Polypropylen-Fasern. Die Wirksamkeit der Fasern konnte zwar empirisch gezeigt werden, es stellt sich allerdings die Frage, welche Mechanismen zur Verhinderung der Abplatzungen führen. Der vorliegende Beitrag fasst bisherige Theorien zur Wirkungsweise von Polypropylen-Fasern in brandbeanspruchten Hochleistungsbetonen zusammen und stellt eine innovative Methodologie zur Erforschung der mikrostrukturellen Prozesse vor. Die Ergebnisse zeigen, dass die nach dem Schmelzen und Zersetzen der Polypropylen-Fasern frei werdenden Mikrokanäle durch eine gleichzeitig einsetzende Mikrorissbildung netzartig verbunden werden. Die Mikrorissbildung ermöglicht somit den Abbau von Eigen- und Zwangsspannungen im Beton (mechanischer Effekt) und die Entstehung eines Transportwegesystems für den ausströmenden Wasserdampf (Permeationseffekt).--------------------------------------------------------------------------- Structural members and bearing structures of high performance concrete generally have to be protected against explosive spalling due to fire exposure to guarantee a sufficient fire resistance. Up to now, the economically and technologically most worthwhile method to prevent explosive spalling is the addition of polypropylene fibres. Though the effectiveness of the fibres could be shown empirically, the mechanisms preventing explosive spalling are still debatable. The present article summarizes the existing theories concerning the mode of action of polypropylene fibres in fire exposed high performance concretes and presents an innovative methodology for analysing the micro structural processes. The results show that due to the thermal decomposition of the polypropylene fibres micro channels are created and simultaneously connected due to a netlike micro crack formation. This enables the relief of internal stresses (mechanical effect) and the formation of a permeable transport system for the escaping water vapour (permeation effect). KW - Polypropylen-Fasern KW - Brandschutz KW - Structural fire protection KW - Computertomographie KW - Computed tomography KW - Hochleistungsbeton KW - High performance concrete KW - Messtechnik KW - Mikrorisse KW - Micro cracks KW - Polypropylen-Fasern KW - Polypropylene fibres KW - PP-Fasern KW - Prüfmethoden KW - Rasterelektronenmikroskopie KW - Scanning electron microscopy KW - Risse KW - Schallemissionsanalyse KW - Acoustic emission KW - UHPC KW - Baustoffe KW - Brandschutz KW - Versuche PY - 2012 U6 - https://doi.org/10.1002/best.201200024 SN - 0005-9900 SN - 1437-1006 VL - 107 IS - 7 SP - 476 EP - 483 PB - Ernst CY - Berlin AN - OPUS4-26174 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Wolff, Dietmar A1 - von der Ehe, Kerstin A1 - Jaunich, Matthias A1 - Böhning, Martin T1 - Performance of neutron radiation shielding material (U)HMW-PE influenced by gamma radiation T2 - PSAM 11 ESREL 2012 - 11th International probabilistic safety assessment and management conference & The annual european safety and reliability conference CY - Helsinki, Finland DA - 2012-06-25 KW - (U)HMW-PE KW - Gamma irradiation KW - Shielding material KW - Cask for storage and transport of radioactive materials PY - 2012 SP - 1 EP - 8(?) AN - OPUS4-26176 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Gerlitzke, A.-K. A1 - Nörthemann, K. A1 - Lang, M. A1 - Milstrey, M. A1 - Kaufer, R. A1 - Woratz, M. A1 - Banach, Ulrich A1 - Hübert, Thomas A1 - Moritz, W. T1 - Long-term stability of the low energy hydrogen sensor N2 - A silicon MIS-structure prepared with thin layers of the super-ionic conductor LaF3 and Pd is used to detect hydrogen. The sensor is able to detect hydrogen in a concentration range from below one ppm to the lower flammable limit in air which is 4 vol.-%. The chip operates at room temperature which results in an extremely low energy consumption compared to other hydrogen sensors. Only once per day a short heating pulse is necessary to reactivate the sensor chip. In cooperation with the BAM, a long-term experiment was carried out. The duration of the measurement was about three months, with a hydrogen exposure every two weeks. The sensor signal remained stable over the measured period. T2 - IMCS 2012 - 14th International meeting on chemical sensors CY - Nuremberg, Germany DA - 20.05.2012 KW - Hydrogen detection KW - Long-term measurement KW - MIS-structure KW - Low energy sensor PY - 2012 SN - 978-3-9813484-2-2 U6 - https://doi.org/10.5162/IMCS2012/P2.5.1 SP - 1571 EP - 1574 PB - AMA Service GmbH CY - Wunstorf AN - OPUS4-26177 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CHAP A1 - Schmidt, Birgit A1 - Koch, W. A1 - Pentzien, Simone A1 - Krüger, Jörg ED - Gabsch, T. T1 - Der Einsatz von Lasertechnik an Modellsystemen zentralasiatischer Wandmalereifragmente KW - Laserreinigung KW - Wandmalerei KW - Verrußung KW - Kunststoffschicht KW - Probekörper PY - 2012 SN - 978-3-7338-0385-8 IS - Kap. 10 SP - 152 EP - 157 PB - Koehler & Amelang GmbH AN - OPUS4-26178 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Dabah, Eitan A1 - Kannengießer, Thomas A1 - Eliezer, D. A1 - Böllinghaus, Thomas T1 - In situ synchrotron X-ray radiation analysis of hydrogen behavior in stainless steel subjected to continuous heating N2 - Hydrogen generally causes lattice distortions and phase transformations when introduced into a metallic crystal lattice. For the investigations reported in this contribution, hydrogen thermal desorption analysis has been carried out to observe the influence of hydrogen desorption on the lattice of super martensitic stainless steel during continuous heating. The lattice expansion parameter and the phase transformations have been monitored during the thermal desorption process, and the influence of hydrogen on such characteristics has been evaluated. It was found that hydrogen has a significant influence on both the lattice parameter and on the thermal expansion. However, hydrogen has no influence on phase transformation during thermal desorption. The hydrogen's desorption behavior in this process was also observed and it turned out that hydrogen desorbs in two stages, i.e., firstly diffusible hydrogen and trapped hydrogen afterward. KW - Synchrotron radiation KW - In situ KW - Hydrogen PY - 2012 U6 - https://doi.org/10.1007/s10853-012-6489-9 SN - 0022-2461 SN - 1573-4803 VL - 47 IS - 15 SP - 5879 EP - 5885 PB - Springer Science + Business Media B.V. CY - Norwell, Mass. AN - OPUS4-26179 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Symietz, Christian A1 - Lehmann, Erhard A1 - Gildenhaar, Renate A1 - Hackbarth, Andreas A1 - Berger, Georg A1 - Krüger, Jörg T1 - Mechanical stability of Ti6Al4V implant material after femtosecond laser irradiation N2 - The surface of a titanium alloy (Ti6Al4V) implant material was covered with a bioactive calcium alkali phosphate ceramic with the aim to accelerate the healing and to form a stronger bond to living bone tissue. To fix the ceramic powder we used a femtosecond laser, which causes a thin surface melting of the metal. It is a requirement to prove that the laser irradiation would not reduce the lifetime of implants. Here we present the results of mechanical stability tests, determined by the rotating bending fatigue strength of sample rods. After describing the sample surfaces and their modifications caused by the laser treatment we give evidence for an unchanged mechanical stability. This applies not only to the ceramic fixation but also to a comparatively strong laser ablation. KW - Aluminium alloys KW - Bending strength KW - Bioceramics KW - Bone KW - Calcium compounds KW - Fatigue KW - Fatigue testing KW - High-speed optical techniques KW - Laser ablation KW - Melting KW - Orthopaedics KW - Prosthetics KW - Rods (structures) KW - Surface treatment KW - Titanium alloys KW - Vanadium alloys PY - 2012 U6 - https://doi.org/10.1063/1.4737576 SN - 0021-8979 SN - 1089-7550 VL - 112 IS - 2 SP - 023103-1 - 023103-5 PB - American Institute of Physics CY - Melville, NY AN - OPUS4-26200 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Höhm, S. A1 - Rosenfeld, A. A1 - Krüger, Jörg A1 - Bonse, Jörn T1 - Femtosecond laser-induced periodic surface structures on silica N2 - The formation of laser-induced periodic surface structures (LIPSS) on two different silica polymorphs (single-crystalline synthetic quartz and commercial fused silica glass) upon irradiation in air with multiple linearly polarized single- and double-fs-laser pulse sequences (τ = 150 fs pulse duration, λ = 800nm center wavelength, temporal pulse separation Δt < 40 ps) is studied experimentally and theoretically. Two distinct types of fs-LIPSS [so-called low-spatial-frequency LIPSS (LSFL) and high-spatial-frequency LIPSS (HSFL)] with different spatial periods and orientations were identified. Their appearance was characterized with respect to the experimental parameters peak laser fluence and number of laser pulses per spot. Additionally, the 'dynamics' of the LIPSS formation was addressed in complementary double-fs-pulse experiments with varying delays, revealing a characteristic change of the LSFL periods. The experimental results are interpreted on the basis of a Sipe-Drude model considering the carrier dependence of the optical properties of fs-laser excited silica. This new approach provides an explanation of the LSFL orientation parallel to the laser beam polarisation in silica—as opposed to the behaviour of most other materials. KW - High-speed optical techniques KW - Laser beam effects KW - Refractive index KW - Silicon compounds KW - Surface structure PY - 2012 U6 - https://doi.org/10.1063/1.4730902 SN - 0021-8979 SN - 1089-7550 VL - 112 IS - 1 SP - 014901-1 - 014901-9 PB - American Institute of Physics CY - Melville, NY AN - OPUS4-26201 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Rahman, Mehbub-Ur A1 - Prager, Jens ED - Linde, B. B. J. ED - Paczkowski, J. ED - Ponikwicki, N. T1 - Modeling of lamb wave propagation with elastodynamic finite integration technique N2 - This paper presents the numerical modeling of the Lamb wave propagation in thin plates with the elastodynamic finite integration technique (EFIT) and its validation with the measured results. In general, Lamb waves offer an attractive method to detect the defects inside long plate like structures efficiently. However, such a nondestructive testing (NDT) requires profound understanding of the Lamb wave propagation in the plates, generation of the symmetric and anti-symmetric modes of different orders and their interaction with the defects of the materials. Modern simulation tools based on numerical methods such as the finite integration technique (FIT), the finite element method (FEM) and the boundary element method (BEM) can be used to model this NDT situation. The elastodynamic finite integration technique (EFIT) is an effective tool to model Lamb wave propagation in plates over long distances in an efficient way. With the help of the simulation results obtained from the EFIT tool the propagation of different symmetric and anti-symmetric modes is analyzed and thus a proper technique is developed to excite different modes and to separate them from each other precisely. A validation of the numerical results with the analytical results is also presented. T2 - International congress on ultrasonics CY - Gdansk, Poland DA - 2011-09-05 KW - NDT KW - EFIT KW - Lamb wave KW - Symmetric and anti-symmetric modes PY - 2012 SN - 978-0-7354-1019-0 U6 - https://doi.org/10.1063/1.3703226 SN - 0094-243X N1 - Serientitel: AIP conference proceedings – Series title: AIP conference proceedings IS - 1433 SP - 455 EP - 458 PB - American Institute of Physics CY - Melville, NY AN - OPUS4-26202 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Gravenkamp, Hauke A1 - Saputra, A. A. A1 - Song, C. A1 - Prager, Jens ED - Linde, B. B. J. ED - Paczkowski, J. ED - Ponikwicki, N. T1 - Detection of defects in thin-walled structures by means of lamb waves N2 - In this paper the Scaled Boundary Finite Element Method (SBFEM) is applied for the simulation of Lamb waves in cracked plates. This method is highly advantageous to study the interaction of different Lamb wave modes with cracks as the crack is not discretized and no refinement is required around the crack tip. Numerical examples are presented for the reflection of the fundamental symmetric and antisymmetric modes from cracks of different depth. The spatial Fourier transformation is employed to calculate the amplitudes of reflected Lamb wave modes. The results reveal possibilities to obtain details of the crack geometry in non-destructive testing and structural health monitoring applications. T2 - International congress on ultrasonics CY - Gdansk, Poland DA - 05.09.2011 KW - Lamb waves KW - Scaled boundary finite element method KW - Simulation KW - Crack detection PY - 2012 SN - 978-0-7354-1019-0 U6 - https://doi.org/10.1063/1.3703223 SN - 0094-243X N1 - Serientitel: AIP conference proceedings – Series title: AIP conference proceedings IS - 1433 SP - 443 EP - 446 PB - American Institute of Physics CY - Melville, NY AN - OPUS4-26203 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Kolkoori, Sanjeevareddy A1 - Rahman, Mehbub-Ur A1 - Prager, Jens T1 - 3D ray tracing model for ultrasound field evaluation in inhomogeneous anisotropic materials: model and experimental validation N2 - In this contribution a 3D ray tracing model for ultrasonic field evaluation in inhomogeneous anisotropic materials such as austenitic welds is presented. The inhomogenity of austenitic weld material is represented as several homogeneous layers. The general problem of energy reflection and transmission at the boundaries of the layers are solved resulting 3D amplitude and energy reflection and transmission coefficients. The directivity factor for the ray in general arbitrary oriented austenitic weld material (including lay back orientation) is determined based on Lamb’s reciprocity theorem. The transducer excited ultrasonic fields are accurately evaluated by employing ray directivity factor, transmission coefficients, divergence of the ray bundle and density of rays. Finally, the comparison between theoretical and experimental results will be described. T2 - DAGA 2012 - 38. Jahrestagung für Akustik - Fortschritte der Akustik CY - Darmstadt, Deutschland DA - 2012-03-19 KW - Ultrasonic field KW - 3D ray tracing KW - Inhomogeneous KW - Austenitic weld PY - 2012 SP - 959 EP - 960 PB - Deutsche Gesellschaft für Akustik e.V. AN - OPUS4-26204 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Kolkoori, Sanjeevareddy A1 - Rahman, Mehbub-Ur A1 - Chinta, P.K. A1 - Kreutzbruck, Marc A1 - Prager, Jens ED - Thompson, D. O. ED - Chimenti, D. E. T1 - Quantitative evaluation of ultrasonic sound fields in anisotropic austenitic welds using 2D ray tracing model N2 - Ultrasonic investigation of inhomogeneous anisotropic materials such as austenitic welds is complicated because its columnar grain structure leads to curved energy paths, beam splitting and asymmetrical beam profiles. A ray tracing model has potential advantage in analyzing the ultrasonic sound field propagation and there with optimizing the inspection parameters. In this contribution we present a 2D ray tracing model to predict energy ray paths, ray amplitudes and travel times for the three wave modes quasi longitudinal, quasi shear vertical, and shear horizontal waves in austenitic weld materials. Inhomogenity in the austenitic weld material is represented by discretizing the inhomogeneous region into several homogeneous layers. At each interface between the layers the reflection and transmission problem is computed and yields energy direction, amplitude and energy coefficients. The ray amplitudes are computed accurately by taking into account directivity, divergence and density of rays, phase relations as well as transmission coefficients. Ultrasonic sound fields obtained from the ray tracing model are compared quantitatively with the 2D Elastodynamic Finite Integration Technique (EFIT). The excellent agreement between both models confirms the validity of the presented ray tracing results. Experiments are conducted on austenitic weld samples with longitudinal beam transducer as transmitting probe and amplitudes at the rear surface are scanned by means of electrodynamical probes. Finally, the ray tracing model results are also validated through the experiments. T2 - 38th Annual Review of Progress in Quantitative Nondestructive Evaluation CY - Burlington, VT, USA DA - 2011-07-17 KW - Ultrasonic sound field KW - Ray tracing KW - Ray directivity KW - Austenitic weld PY - 2012 SN - 978-0-7354-1013-8 U6 - https://doi.org/10.1063/1.4716359 SN - 0743-0760 SN - 0094-243X N1 - Serientitel: AIP conference proceedings – Series title: AIP conference proceedings IS - 1430 SP - 1227 EP - 1234 PB - American Institute of Physics CY - Melville, NY AN - OPUS4-26205 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Prager, Jens A1 - Gravenkamp, Hauke A1 - Rahman, Mehbub-Ur A1 - Köppe, Enrico T1 - Einsatz geführter Wellen für die Ultraschallprüfung N2 - Der Einsatz geführter Wellen für die zerstörungsfreie Prüfung mit Ultraschall eröffnet neue Möglichkeiten, räumlich ausgedehnte Bauteile mit begrenzter Zugänglichkeit auf ihre Integrität zu prüfen und gewinnt daher zunehmend an Bedeutung. Dieser Artikel behandelt die physikalischen Grundlagen der Schallausbreitung. Deren Verständnis bildet die Grundlage für die Entwicklung geeigneter Prüfsysteme. An Beispielen werden verschiedene Möglichkeiten zur Simulation der Schallausbereitung vorgestellt. Aktuelle Lösungsansätze zur Prüfung von plattenförmigen Strukturen und von Rohrleitungen werden beschrieben, wobei besonders auf die Sensortechnik und die speziellen Anforderungen an die Prüfhardware eingegangen wird. ----------------------------------------------------------------------------------------------------------------------------------- Guided waves are widely used for non-destructive testing using ultrasound. Recently, the method has become increasingly important for integrity tests of spatially extended components with limited accessibility. This article discusses the basic physics of the sound propagation of guided waves. Their understanding forms the basis for the successful development of adapted inspection systems. Examples for simulating the wave propagation using different methods are presented. Current approaches for the inspection of plate-like structures and pipelines are described with focus on sensor technology and the specific requirement on the test hardware. KW - Zerstörungsfreie Prüfung KW - Geführte Wellen KW - Ultraschallprüfung KW - Non-destructive evaluation KW - Guided waves KW - Ultrasound PY - 2012 U6 - https://doi.org/10.1524/teme.2012.0168 SN - 0340-837X SN - 0178-2312 SN - 0171-8096 VL - 79 IS - 5 SP - 251 EP - 261 PB - Oldenbourg CY - München AN - OPUS4-26206 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Kolkoori, Sanjeevareddy A1 - Rahman, Mehbub-Ur A1 - Chinta, P.K. A1 - Boehm, Rainer A1 - Prager, Jens ED - Linde, B. B. J. ED - Paczkowski, J. ED - Ponikwicki, N. T1 - Simulation of ultrasonic fields in anisotropic materials using 2D ray tracing method N2 - Ultrasound propagation in inhomogeneous anisotropic materials is difficult to examine because of the directional dependency of elastic properties. Simulation tools play an important role in developing advanced reliable ultrasonic testing techniques for the inspection of anisotropic materials particularly austenitic cladded materials and dissimilar welds. A 2-D Ray tracing method is developed for evaluating ray path, amplitude and travel time for three wave modes namely quasi longitudinal wave (qP), quasi shear vertical wave (qSV) and shear horizontal waves (SH) in anisotropic materials such as austenitic cladded materials. The inhomogenity in the anisotropic material is represented by discretizing the anisotropic region into several homogeneous layers. The ray paths are traced during its propagation through the various interfaces between those layers. At each interface the problem of reflection and refraction is solved. The ray amplitudes are computed by taking into account the directivity and phase relations. Ray divergence variation and ray transmission coefficients at each refraction boundary are considered. The Ray tracing results for ultrasonic field profiles in austenitic cladded materials are validated quantitatively by 2-D Elastodynamic Finite Integration Technique (EFIT) results and by the experiments. T2 - International congress on ultrasonics CY - Gdansk, Poland DA - 2011-09-05 KW - Ray path KW - Energy vector KW - Austenitic cladded material KW - Ultrasonic beam profile PY - 2012 SN - 978-0-7354-1019-0 U6 - https://doi.org/10.1063/1.3703288 SN - 0094-243X N1 - Serientitel: AIP conference proceedings – Series title: AIP conference proceedings IS - 1433 SP - 743 EP - 746 PB - American Institute of Physics CY - Melville, NY AN - OPUS4-26207 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Ferraioli, M. A1 - Mandara, A. A1 - Abruzzese, D. A1 - Miccoli, Lorenzo ED - Ferrari, A. T1 - Seismic assessment of two masonry medieval bell towers T2 - 5th International congress on science and technology for the safeguard of cultural heritage in the Mediterranean basin CY - Istanbul, Turkey DA - 2011-11-22 KW - Masonry towers KW - Environmental vibration tests KW - Dynamic identification KW - Seismic assessment PY - 2012 SN - 978-88-905639-8-0 VL - II SP - 220 EP - 226 PB - CNR AN - OPUS4-26208 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Simon, Franz-Georg A1 - Adam, Christian T1 - Ressourcen aus Abfall N2 - Die Beseitigung unbehandelter Abfälle auf Deponien gehört der Vergangenheit an, nicht nur weil Verordnungen diese Praxis verbieten, sondern auch, weil wegen steigender Preise für Rohstoffe und sinkender Gehalte in Erzen auch in Abfällen nach Alternativen gesucht wird. In den Aschen aus Hausmüllverbrennungsanlagen können mit einfachen Verfahren Metalle zurückgewonnen werden. Mit dem Phosphor aus Klärschlammaschen können Düngemittel hergestellt und so natürliche Ressourcen geschont werden. In beiden Fällen ist die Anreicherung der Wertstoffe durch den Verbrennungsprozess vorteilhaft, da die Effizienz von Recyclingprozessen stark von der Konzentration im Ausgangsgut abhängig ist.-------------------------------------------------------------------------------------------------------------------------------- Disposal of untreated waste has come to end due to new legislation in this field. Furthermore as a response to increasing prices for primary raw materials and decreasing ore concentrations products from waste treatment display a source for secondary raw materials. Elemental metals can be easily separated from municipal solid waste incineration bottom ash. Fertilizers can be produced using phosphate from sewage sludge ashes thus preserving natural resources. In both cases the enrichment taking place in the incineration process facilitates the resource recovery, because the efficiency of recycling processes is dependent on the concentration of the input material. KW - Klärschlammaschen KW - NE-Metalle KW - Phosphor KW - Rostaschen KW - Bottom ash KW - Nonferrous metals KW - Phosphorus KW - Sewage sludge ash PY - 2012 U6 - https://doi.org/10.1002/cite.201100189 SN - 0009-286X SN - 1522-2640 VL - 84 IS - 7 SP - 999 EP - 1004 PB - Wiley-VCH Verl. CY - Weinheim AN - OPUS4-26209 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Simon, Franz-Georg A1 - Keldenich, K. T1 - Abfallwirtschaft im Spannungsfeld zwischen thermischer Behandlung und Recycling N2 - Die Abfallwirtschaft in Deutschland behandelt eine Menge von 359 Mio. Tonnen. Den größten Anteil haben Bau- und Abbruchabfälle mit 54%. Die Behandlungsverfahren dafür unterscheiden sich stark von denen für Siedlungsabfälle. Gemäß Europäischer Abfallrichtlinie ist Recycling gegenüber einer energetischen Verwertung in der Hierarchie der Abfallbehandlungsverfahren höher bewertet. Bei der thermischen Behandlung entscheidet die Energieeffizienz des Verfahrens, ob eine Behandlung als Verwertung oder Beseitigung gilt. Nach dieser Richtlinie erfolgt die Berechnung der Energieeffizienz stark vereinfacht mit der sogenannten R1-Formel. Veröffentlichte Daten zu Wärme- und Stromproduktion verschiedener thermischer Abfallbehandlungsanlagen werden mit der R1-Formel und Daten aus der Literatur verglichen. Mengen und Entsorgungswege sowie Möglichkeiten zur Bewertung von Abfallbehandlungsverfahren werden diskutiert. --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Waste management in Germany covers an amount of 359 million tons. The largest fraction is construction and demolition waste (C&D waste) with some 54%. The treatment processes for C&D waste differ from those for municipal solid waste. According to the European Directive on Waste a waste hierarchy shall apply where recycling has a higher priority than energy recovery. A thermal treatment is regarded as recovery operation only if the energy efficiency is above a certain limit. Under the terms of the directive a simplified calculation of the energy efficiency is perfomed using the so-called R1 formula. Published data on heat and power production of several thermal waste treatment plants are compared to the R1 formula and data from literature. Amount and waste management options for different waste fractions and how to evaluate different waste management processes are discussed. KW - Abfall KW - Energieeffizienz KW - Ersatzbrennstoffe KW - Kunststoffabfälle KW - Recycling(RC)-Baustoffe KW - Energy efficiency KW - Plastic waste KW - Recycled aggregates KW - Refuse derived fuels KW - Waste PY - 2012 U6 - https://doi.org/10.1002/cite.201200005 SN - 0009-286X SN - 1522-2640 VL - 84 IS - 7 SP - 985 EP - 990 PB - Wiley-VCH Verl. CY - Weinheim AN - OPUS4-26210 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Weimann, Karin A1 - Müller, A. A1 - Linß, E. A1 - Schulz, T. A1 - Adamczyk, Burkart ED - Jones, M.R. ED - Newlands, M.D. ED - Halliday, J.E. ED - Csetenyi, L.J. ED - Li, Z. ED - McCarthy, M.J. ED - Dyer, T.D. T1 - Reducing sulphates in crushed concrete: improving the building material properties of recycled concrete aggregates N2 - The material properties of recycled concrete aggregates (RCA) are correlated to the sorting accuracy of the former demolition waste. Impurities like wood, clay bricks or gypsum can lead to inferior building material properties. Harmful substances like heavy metals or organic pollutants should be minimised as well. Hence the non-concrete materials have to be separated from the concrete material stream. This can be done during the demolition process by using selective dismantling techniques. Alternatively a variety sorting and classifying techniques to purify the crushed concrete can be utilized. A research project, funded by the Federal Ministry for the Environment, Nature Conservation and Nuclear Safety, investigated the possibilities of gaining recycled concrete aggregates of a high quality for the reuse in the production of concrete. The work focuses especially on how gypsum respectively sulphates in the crushed concrete can be reduced. Sulphates can impair the setting behaviour of concrete and also damage set concrete by causing expansion. Therefore the content of sulphates in RCA is restricted by guidelines and standards in Germany. Generally, gypsum in construction waste originates from interior fittings like gypsum walls, floor screeds, plaster boards and also plaster. Most of these materials can be reconstructed using selective dismantling techniques. This can be achieved either by manual labour or by using mechanical equipment e.g. to remove floor screeds by milling. Depending on the specific deconstruction site it can be more effective and/or more environmentally compatible to remove sulphates by treating the crushed concrete. Applicable treatments for sulphate reduction include dry processes like manual sorting of gypsum wall blocks as well as wet treatments e.g. jigging. In addition this research project an environmental performance evaluation was undertaken to assess different techniques for reducing sulphates in recycled concrete aggregates. T2 - Tagung 'Cocrete in the low carbon era' CY - Dundee, Great Britain DA - 2012-07-09 KW - Building material properties KW - Environmental performance evaluation KW - Gypsum KW - Recycled concrete aggregates KW - Sulphates PY - 2012 SN - 978-0-9573263-0-9 SP - 687 EP - 698 AN - OPUS4-26211 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Krankenhagen, Rainer A1 - Maierhofer, Christiane T1 - Determination of the spatial energy distribution generated by means of a flash lamp - a simple approach T2 - QIRT 2012 CY - Naples, Italy DA - 2012-06-11 PY - 2012 AN - OPUS4-26212 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Richter, Regina A1 - Maierhofer, Christiane A1 - Kreutzbruck, Marc T1 - Numerical method of active thermography for the reconstruction of back wall T2 - QIRT 2012 11th International Conference on Quantitative InfraRed Thermography CY - Naples, Italy DA - 2012-06-11 PY - 2012 AN - OPUS4-26214 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Richter, Regina A1 - Maierhofer, Christiane A1 - Götschel, S. A1 - Weiser, M. T1 - Data Enhancement for Active Thermography T2 - QIRT 2012 11th International Conference on Quantitative InfraRed Termography CY - Naples, Italy DA - 2012-06-11 PY - 2012 AN - OPUS4-26215 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Höhne, Christian A1 - Boehm, Rainer A1 - Prager, Jens T1 - Anwendung multidimensionaler analytischer Signale mit Single-Orthant-Spektren zur Aufbereitung von SAFT-Daten in der Ultraschallprüfung T2 - DAGA 2012 - 38. Jahrestagung für Akustik CY - Darmstadt, Germany DA - 2012-03-19 PY - 2012 AN - OPUS4-26216 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Völz, Uwe A1 - Boehm, Rainer A1 - Heckel, Thomas A1 - Spruch, W. T1 - Ultraschallprüfung an Hohlwellen mit einem Gruppenstrahler-Kegelarray T2 - Fachtagung ZfP im Eisenbahnwesen 2012 CY - Wittenberge, Germany DA - 2012-03-21 PY - 2012 AN - OPUS4-26217 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Völz, Uwe A1 - Boehm, Rainer A1 - Heckel, Thomas A1 - Spruch, W. T1 - Ultrasonic Testing of Hollow Axles with a Conical Rotation Scanner Phased Array Probe T2 - Railways 2012 CY - Las Palmas, Spain DA - 2012-04-18 PY - 2012 AN - OPUS4-26218 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Hönig, D. A1 - Schneider, S. A1 - Domnick, R. A1 - Belzner, M. A1 - Beck, Uwe A1 - Hertwig, Andreas A1 - Stephanowitz, Ralph A1 - Weise, Matthias T1 - Optical Layer Systems for Product Authentication: Interference, Scattering, Light Diffusion and Ellipsometric Encoding as Public, Hidden and Forensic Security Features T2 - PSE 2012, 13 th International Conference on Plasma Surface Engineering CY - Garmisch-Partenkirchen, Germany DA - 2012-09-10 PY - 2012 AN - OPUS4-26140 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Bonse, Jörn A1 - Krüger, Jörg A1 - Höhm, S. A1 - Rosenfeld, A. T1 - Generation, Control and Mechanisms of the Formation of Periodic Surface Structures on the Nanometer Scale Induced by Femtosecond Laser Pulse Irradiation of Solids T2 - Julius Springer Forum for Applied Physics 2012 CY - Berlin, Germany DA - 2012-06-20 PY - 2012 AN - OPUS4-26141 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Schultz, C. A1 - Dombkewitz, F. A1 - Schüle, M. A1 - Bonse, Jörn A1 - Rau, B. A1 - Schlattmann, R. A1 - Quaschning, V. A1 - Stegemann, B. A1 - Fink, F. T1 - Influence on the Mechanical Properties of Sputtered Mo Solar Cell Back Contacts on Laser Scribing T2 - Proceedings of the 27th European Photovoltaic Solar Energy Conference CY - Frankfurt am Main, Germany DA - 2012-09-24 PY - 2012 AN - OPUS4-26142 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Hodoroaba, Vasile-Dan A1 - Rackwitz, Vanessa T1 - Reference Materials for the Performance Check and Specification of Energy Dispersive X-Ray Spectrometers in Electron Probe Microanalysis T2 - European Conference on X-Ray Spectrometry EXRS 2012 CY - Vienna, Austria DA - 2012-06-18 PY - 2012 AN - OPUS4-26143 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Bonse, Jörn A1 - Krüger, Jörg A1 - Höhm, S. A1 - Rosenfeld, A. T1 - Femtosecond laser-induced periodic nanostructures T2 - 8th International Conference on Photo-Excited Processes and Processes and Applications (ICPEPA-8) CY - Rochester, NY, USA DA - 2012-08-12 PY - 2012 AN - OPUS4-26144 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Rackwitz, Vanessa A1 - Hodoroaba, Vasile-Dan T1 - An Attempt of Exploiting the Compton-to-Rayleigh Intensity Ratio for Improved Analysis with mu-XRF at a SEM T2 - European Conference on X-Ray Spectrometry EXRS 2012 CY - Vienna, Austria DA - 2012-06-18 PY - 2012 AN - OPUS4-26145 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Rackwitz, Vanessa A1 - Ostermann, Markus A1 - Hodoroaba, Vasile-Dan T1 - Limits of detection of mu-XRF with the SEM/EDS for RoHS relevant elements T2 - European Conference on X-Ray Spectrometry EXRS 2012 CY - Vienna, Austria DA - 2012-06-18 PY - 2012 AN - OPUS4-26146 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Hertwig, Andreas T1 - Charakterisierung von Oberflächen und dünnen Schichten mit Ellipsometrie T2 - BLiX-Seminar, TU Berlin CY - Berlin, Germany DA - 2012-07-10 PY - 2012 AN - OPUS4-26147 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Taffe, Alexander A1 - Kind, Thomas T1 - Zerstörungsfreie Prüfverfahren (ZfP) zur Ermittlung der tatsächlichen Konstruktion von Spannbetonbauteilen T2 - 2. Jahreskonferenz Brücken D-A-C-H CY - Munich, Germany DA - 2012-07-09 PY - 2012 AN - OPUS4-26148 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Sporkert, F. A1 - Becker, Roland A1 - Lo, I. T1 - Results of the 2011 Ethyl Glucuronide and FAEE Proficiency Test T2 - 17th Meeting of the Society of Hair Testing CY - Toronto, Canada DA - 2012-06-25 PY - 2012 AN - OPUS4-26149 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Reinholz, Uwe A1 - Bjeomikov, A. A1 - Buzanich, Günter A1 - Langhoff, N. A1 - Ordavo, I. A1 - Radtke, Martin A1 - Riesemeier, Heinrich A1 - Scharf, O. A1 - Wedell, R. T1 - The SLcam: A full-field energy dispersive X-ray camera T2 - 14th International Workshop on Radiation Imaging Detectors CY - Figueira da Foz, Portugal DA - 2012-07-01 PY - 2012 AN - OPUS4-26130 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Hedrich, Martina T1 - Interpretation of PT Results - What is the Message? T2 - EURL Annual Meeting of NRL for PAHs and Mycotoxins CY - Geel, Belgium DA - 2012-04-26 PY - 2012 AN - OPUS4-26131 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Golze, Manfred T1 - Accreditation and Notification Views and experiences of EUROLAB members T2 - EUROLAB Workshop "Accreditation and market surveillance" CY - Prague, Czech Republic DA - 2012-04-20 PY - 2012 AN - OPUS4-26132 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Golze, Manfred T1 - Current discussion within EA and ILAC on accreditors' policy on traceability T2 - EURACHEM Workshop "Validation / Traceability / Measurement Uncertainty" CY - Berlin, Germany DA - 2012-05-22 PY - 2012 AN - OPUS4-26133 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Weidner, Steffen A1 - Falkenhagen, Jana A1 - Breßler, Ingo T1 - MassChrom2D zur Bestimmung der Zusammensetzung von Copolymeren aus MALDI und LC Daten T2 - 16. Kolloquium MALDI und Synthetische Polymere CY - Berlin, Germany DA - 2012-05-08 PY - 2012 AN - OPUS4-26135 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Gabriel, Stefan A1 - Mishra, Kirti Bhushan A1 - Weidner, Steffen T1 - Molmassenabhängige Verteilung einer Dried Droplet Probe in Abhängigkeit von Lösungsmitteln und Polymeren T2 - 16. Kolloquium MALDI und Synthetische Polymere CY - Berlin, Germany DA - 2012-05-08 PY - 2012 AN - OPUS4-26136 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Päpke, O. A1 - Becker, Roland A1 - Schröter-Kermani, C. A1 - Stegemann, D. A1 - Neugebauer, F. T1 - Observation of time trends for HBCD enantiomers and PBDEs in herring gull eggs from german coastal regions T2 - 13th Workshop on Brominated and other Flame Retardants CY - Winnipeg, Canada DA - 2012-06-04 PY - 2012 AN - OPUS4-26137 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Burkert, Andreas A1 - Lehmann, Jens A1 - Burkert, Annette T1 - Edelstahl Rostfrei - Alternativen zu den Standardausteniten T2 - ISER-Mitgliederversammlung 2012 CY - Witten, Germany DA - 2012-07-03 PY - 2012 AN - OPUS4-26150 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Schneider, S. A1 - Herbst, Tristan A1 - Beck, T. A1 - Wittstock, B. T1 - Sustainability assessment for the recycling of masonry T2 - 6th Society & Materials International Conference SAM-6 CY - Leuven, Belgium DA - 2012-05-30 PY - 2012 AN - OPUS4-26151 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Meyer-Plath, Asmus A1 - Hanelt, Sven A1 - Friedrich, Jörg F. T1 - UV-spectroscopic indirekt quantification of functional groups on MWCNTs T2 - Annual World Conference on Carbon 2012 CY - Kraków, Poland DA - 2012-06-17 PY - 2012 AN - OPUS4-26152 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Guderian, Matthias A1 - Daschewski, Maxim A1 - Prager, Jens A1 - Kreutzbruck, Marc A1 - Meyer-Plath, Asmus T1 - Optimized nanostructured carbon materials for airborne ultrasound generation T2 - Annual World Conference on Carbon 2012 CY - Kraków, Poland DA - 2012-06-17 PY - 2012 AN - OPUS4-26153 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Kalbe, Ute A1 - Berger, Wolfgang A1 - Krüger, Oliver A1 - Bredow, Andrea A1 - Mathies, Helena A1 - Piechotta, Christian A1 - Riedel, Maren T1 - Column leaching tests on soils containing less investigated organic pollutants T2 - EUROSOIL 2012 CY - Bari, Italy DA - 2012-07-02 PY - 2012 N1 - Geburtsname von Riedel, Maren: Kolepki, M. - Birth name of Riedel, Maren: Kolepki, M. AN - OPUS4-26154 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Kalbe, Ute T1 - Stand der Entwicklung von Elutionsverfahren für Bauprodukte, Boden und Abfälle im europäischen und nationalen Maßstab T2 - 21. Chemisches Kolloquium "Baumaterialien und Oberflächengewässer" CY - Koblenz, Germany DA - 2012-06-19 PY - 2012 AN - OPUS4-26155 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Weimann, Karin A1 - Müller, A. A1 - Linß, E. A1 - Schulz, T. A1 - Adamczyk, Burkart T1 - Reducing Sulphates in crushed concrete - improving the building material properties of Recycled Concrete Aggregates T2 - Concrete in the low carbon Era CY - Dundee, Scotland DA - 2012-07-08 PY - 2012 AN - OPUS4-26156 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Gnutzmann, Tanja A1 - Klimakow, Maria A1 - Rademann, K. A1 - Emmerling, Franziska T1 - Investigation of crystallization processes using synchrotron X-ray diffraction and Raman spectroscopy T2 - 3rd Workshop on Simultaneous Combination of Spectroscopies with x-ray Absorbtion CY - Zurich, Switzerland DA - 2012-07-04 PY - 2012 AN - OPUS4-26157 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Aichner, Bernhard A1 - Lehnik-Habrink, Petra A1 - Hein, Sebastian A1 - Bussian, B T1 - Forest soil monitoring of organic pollutants in Germany T2 - EUROSOIL CY - Bari, Italy DA - 2012-07-02 PY - 2012 AN - OPUS4-26158 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Thöns, Sebastian A1 - Döhler, M. T1 - Structural Reliability Updating with Stochastic Subspace Damage Detection Information T2 - EACS 2012: 5th European Conference on Structural Control CY - Genoa, Italy DA - 2012-06-17 PY - 2012 AN - OPUS4-26159 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Thöns, Sebastian A1 - Rücker, Werner A1 - Straub, D. A1 - Fischer, J. T1 - Intelligente Bauwerke - Zuverlässigkeitsbasierte Bewertung von Brückenbauwerken unter Berücksichtigung von Inspektions- und Überwachungsergebnissen T2 - Workshop Intelligente Bauwerke CY - Bergisch Gladbach, Germany DA - 2012-06-26 PY - 2012 AN - OPUS4-26160 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Cuéllar, Pablo A1 - Baeßler, Matthias A1 - Rücker, Werner T1 - Pore-Pressure Accumulation and Soil Softening around Pile Foundations for Offshore Wind Turbines T2 - OMAE-2012 ASME Conference, Symposium 10 Offshore Geotechnics, Session 10-6 Piled Foundations CY - Rio de Janeiro, Brazil DA - 2012-07-01 PY - 2012 AN - OPUS4-26161 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Kannengießer, Thomas A1 - Böllinghaus, Thomas T1 - Cold Cracking Tests - An Overview of Present Technologies and Applications T2 - IIW Annual Assembly CY - Denver, CO, USA DA - 2012-07-09 PY - 2012 AN - OPUS4-26162 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Gollnow, Christian A1 - Kannengießer, Thomas T1 - Hot Cracking Analysis using in-situ Digital Image Correlation Technique T2 - IIW Annual Assembly CY - Denver, CO, USA DA - 2012-07-09 PY - 2012 AN - OPUS4-26163 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Mente, Tobias A1 - Steppan, Enrico A1 - Böllinghaus, Thomas T1 - Numerical simulation of hydrogen assisted cold cracking in welded joints of High strength structural steels T2 - IIW Annual Assembly CY - Denver, CO, USA DA - 2012-07-09 PY - 2012 AN - OPUS4-26164 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Mente, Tobias A1 - Böllinghaus, Thomas T1 - Mesoscale Crack Model for Duplex Stainless Steels Microstructures T2 - IIW Annual Assembly CY - Denver, CO, USA DA - 2012-07-09 PY - 2012 AN - OPUS4-26165 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Kannengießer, Thomas A1 - Dabah, Eitan A1 - Beyer, K. A1 - Brauser, St. A1 - Mente, Tobias T1 - Quantification of hydrogen diffusion Coefficients and Effusion Behaviour in Duplex Steel Weld Metals T2 - IIW Annual Assembly CY - Denver, CO, USA DA - 2012-07-09 PY - 2012 AN - OPUS4-26167 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Binder, Christian T1 - Testing of Components and nonmetallic materials for oxygen service T2 - ISSA Workshop "Gases under pressure" CY - Frankfurt am Main, Germany DA - 2012-06-20 PY - 2012 AN - OPUS4-26168 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Schalau, Bernd T1 - Statuspapier: Quelltermberechnung bei störungsbedingten Stoff- und Energiefreisetzungen in der Prozessindustrie - Methodenübersicht und industrielle Anwendung T2 - AA "Risikomangement", ProcessNet CY - Frankfurt am Main, Germany DA - 2012-05-31 PY - 2012 AN - OPUS4-26169 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Wosniok, Aleksander A1 - Krebber, Katerina A1 - Glötzl, R. ED - Boller, C. T1 - Temperature-corrected determination of mechanical deformations in geotechnical structures using Brillouin-based fiber optic sensors T2 - EWSHM'12 - 6th European workshop on structural health monitoring 2012 CY - Dresden, Germany DA - 2012-07-03 KW - Structural health monitoring KW - Brillouin scattering KW - Distributed sensor PY - 2012 SN - 978-3-940283-41-2 VL - 1 SP - 417 EP - 422 CY - Berlin AN - OPUS4-26311 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Gorbushina, Anna T1 - Zahlreiche Widerspenstige: Steinlaus, Steinpilz, Steinbiofilm, Steinalge, Steinbakterium… T2 - Lange Nacht der Wissenschaften 2012 CY - Berlin, Germany DA - 2012-06-02 PY - 2012 AN - OPUS4-26312 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Thöns, Sebastian A1 - Faber, M.H. A1 - Rücker, Werner T1 - Optimierung des Managements der Tragwerksintegrität für Offshore-Windenergieanlagen N2 - Dieser Artikel enthält aktuelle Forschungsergebnisse im Bereich des überwachungsgestützten Managements der Tragwerksintegrität. Das Management der Tragwerksintegrität hat zum Ziel, die Funktionalität eines Tragwerks während des gesamten Lebenszyklus durch Einhaltung der Zielzuverlässigkeiten sicherzustellen. Ausgehend von Forschungsergebnissen über die Charakteristik von Überwachungsverfahren und -daten im Rahmen von Zuverlässigkeitsanalysen, wird ein Ansatz vorgestellt, wie die erwarteten Kosten für das Management der Tragwerksintegrität durch Überwachungsverfahren optimiert werden können. Dazu wird eine Kosten-Nutzen-Analyse für den Lebenszyklus einer Gründungstruktur von Offshore-Windenergieanlagen durchgeführt. Im Rahmen der Bayes'schen Entscheidungstheorie werden durch eine Prä-posteriori-Entscheidungsanalyse die optimalen Entscheidungsparameter für den Entwurf eines Überwachungssystems bestimmt. Als Fallstudie wird ein Überwachungssystem für die Gründungsstruktur eines Multibrid-M5000-Prototyps konzipiert und die mögliche Reduktion der Risiken und erwarteten Betriebskosten quantifiziert. -------------------------------------------------------------------------------------------------------------------------------------------------------------------- This paper contains recent research results in the field of monitoring supported structural integrity management. The structural integrity management aims at ensuring the functioning of a structure throughout the life cycle by compliance with the target reliabilities. Building upon research results concerning the characteristics of monitoring techniques and data within the framework of reliability analyses, an approach is introduced for the optimisation of the expected structural integrity management costs by monitoring information. For this aim, a life cycle cost benefit analysis for offshore wind turbine support structures is formulated. The optimal monitoring decision parameters are then assessed utilizing the Bayesian pre-posterior decision theory. As a case study a monitoring system for a Multibrid M5000 offshore wind turbine prototype support structure is designed and possible reductions of the risks and expected costs are quantified. KW - Management der Tragwerksintegrität KW - Messunsicherheit KW - Tragwerkszuverlässigkeit KW - Bayes'sche Aktualisierung KW - Kosten-Nutzen-Analyse KW - Lebenszyklus KW - Structural integrity management KW - Measurement uncertainty KW - Structural reliability KW - Bayesian updating KW - Cost-benefit analysis KW - Life cycle KW - Bauwerkserhaltung/Sanierung - Maintenance and Repair KW - Meerestechnik - Offshore engineering KW - Stahlbau - Steel construction PY - 2012 U6 - https://doi.org/10.1002/bate.201200021 SN - 0932-8351 SN - 1437-0999 SN - 0005-6820 SN - 0341-1052 SN - 0932-6359 SN - 0932-8351 VL - 89 IS - 8 SP - 525 EP - 532 PB - Ernst & Sohn CY - Berlin AN - OPUS4-26313 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Nehrig, Marko A1 - Bletzer, Claus Wilhelm A1 - Wille, Frank T1 - Safety assessment aspects of type B(U) packages containing wet intermediate level waste T2 - RAMTRANSPORT 2012 - 9th International Conference on the Radioactive Materials Transport and Storage CY - London, UK DA - 2012-05-22 KW - Radioactive materials KW - Safety assessment KW - Pressure build-up KW - Wet intermediate level waste PY - 2012 SP - 1 EP - 7(?) AN - OPUS4-26314 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Herbst, Tristan A1 - Rübner, Katrin A1 - Meng, Birgit A1 - Hauer, B. ED - Bager, D. H. ED - Silfwerbrand, J. T1 - Sustainable evaluation - concept to assess the applicability of secondary aggregates in concrete T2 - fib Symposium Stockholm 2012 'Concrete structures for a sustainable community' CY - Stockholm, Sweden DA - 2012-06-11 KW - Sustainability KW - Sustainable evaluation KW - Secondary aggregates KW - Concrete PY - 2012 SN - 978-91-980098-1-1 SP - 441 EP - 444 PB - Royal Institute of Technology CY - Stockholm AN - OPUS4-26316 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Markötter, H. A1 - Manke, I. A1 - Kuhn, R. A1 - Arlt, Tobias A1 - Kardjilov, N. A1 - Hentschel, Manfred P. A1 - Kupsch, Andreas A1 - Lange, Axel A1 - Hartnig, C. A1 - Scholta, J. A1 - Banhart, J. T1 - Neutron tomographic investigations of water distributions in polymer electrolyte membrane fuel cell stacks N2 - Neutron tomography was applied to study the 3D water distribution in full polymer electrolyte membrane fuel cell (PEMFC) stacks. The water distribution after switch-off of the fuel cell was analyzed over a period of 36 h. We found a slowly increasing water amount in the fuel cell, but only few changes within a time period of 5 h, which is about the time necessary for neutron tomography. In this way, the requirement for successful tomography was obtained. It is demonstrated how the quasi in-situ tomography technique enables us to study the water content in individual flow field channels of three-fold stacks. Flow field as well as stack design issues are addressed by this visualization method showing weak points due to a non-uniform water distribution that can be identified by means of neutron imaging. KW - Radiography KW - Tomography KW - Neutron imaging KW - Polymer electrolyte membrane fuel cell (PEMFC) KW - Manifold stack KW - Water management PY - 2012 U6 - https://doi.org/10.1016/j.jpowsour.2012.07.043 SN - 0378-7753 VL - 219 SP - 120 EP - 125 PB - Elsevier CY - Amsterdam [u.a.] AN - OPUS4-26317 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Grehn, M. A1 - Tsai, W.J. A1 - Höfner, M. A1 - Seuthe, T. A1 - Bonse, Jörn A1 - Mermillod-Blondin, A. A1 - Rosenfeld, A. A1 - Hennig, J. A1 - Achtstein, A. W. A1 - Theiss, C. A1 - Woggon, U. A1 - Eberstein, M. A1 - Eichler, H.J. T1 - Nonlinear optical properties of binary and ternary silicate glasses upon near-infrared femtosecond pulse laser irradiation N2 - Some nonlinear optical properties such as the nonlinear refractive index and the nonlinear effective absorption, as well as the laser-induced single-pulse ablation threshold are characterized for a series of binary and ternary silicate glasses upon irradiation with near-infrared femtosecond laser pulses (800 nm, 130 fs). The laser-induced ablation threshold varies from 2.3 J/cm² in case of potassium silicate glass up to 4.3 J/cm² in case of Fused Silica. Nonlinear refractive indices are qualitatively similar within the range 1.7-2.7×10-16 cm²/W. Complementary optical and physico-chemical properties like band gap energy and the glass transformation temperature have been measured for all the glasses. T2 - International symposium on high power laser ablation 2012 CY - Santa Fe, NM, USA DA - 30.04.2012 KW - Laser-induced damage threshold KW - Laser ablation KW - Nonlinear refractive index KW - Silicate glass systems KW - Glass transformation temperature KW - Coefficient of thermal expansion PY - 2012 SN - 978-0-7354-1068-8 U6 - https://doi.org/10.1063/1.4739918 N1 - Serientitel: AIP conference proceedings – Series title: AIP conference proceedings VL - 1464 SP - 660 EP - 670 AN - OPUS4-26318 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Mizuno, Y. A1 - Lenke, Philipp A1 - Krebber, Katerina A1 - Nakamura, K. T1 - Characterization of Brillouin gain spectra in polymer optical fibers fabricated by different manufacturers at 1.32 and 1.55 µm N2 - We characterize the Brillouin gain spectra (BGS) in perfluorinated graded-index polymer optical fibers (PFGI-POFs) at 1.32 µm and 1.55 µm. Three kinds of PFGI-POFs with the same core diameter, but which are fabricated by different manufacturers, are tested. For all the PFGI-POFs, the Stokes power measured at 1.32 µm is higher than that at 1.55 µm due to the lower propagation loss, but significant differences in Stokes power are observed among the three. Based on the measurement obtained by the optical time-domain reflectometry, we show that the actual propagation loss of the PFGI-POFs plays a crucial role in observing BGS. KW - Brillouin gain spectrum (BGS) KW - Brillouin scattering KW - Nonlinear optics KW - Polymer optical fiber (POF) PY - 2012 U6 - https://doi.org/10.1109/LPT.2012.2206803 SN - 1041-1135 VL - 24 IS - 17 SP - 1496 EP - 1498 PB - IEEE CY - New York, NY, USA AN - OPUS4-26319 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Hörold, Andreas A1 - Schartel, Bernhard A1 - Trappe, Volker A1 - Korzen, Manfred A1 - Naumann, Maurice T1 - Structural integrity in fire: an intermediate-scale approach T2 - ECCM15 - 15th European conference on composite materials CY - Venice, Italy DA - 2012-06-24 KW - Intermediate-scale test method KW - Structural integrity investigation KW - Fully developed fire KW - Carbon fibre reinforced plastics CFRP PY - 2012 SN - 978-88-88785-33-2 SP - 1 EP - 8(?) AN - OPUS4-26380 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Schartel, Bernhard T1 - Towards evidence-based development of flame retarded polymers T2 - 243rd National ACS meeting - Spring 2012 CY - San Diego, CA, USA DA - 2012-03-25 KW - Flame retardancy KW - Halogen-free KW - Flame retardancy mechanism KW - Fire property assessment PY - 2012 SN - 978-0-8412-2727-9 SN - 1550-6703 N1 - Serientitel: PMSE Preprints – Series title: PMSE Preprints VL - 243 SP - 38-PMSE PB - Amer Chemical SOC CY - Washington, USA AN - OPUS4-26381 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Kempel, Florian A1 - Schartel, Bernhard A1 - Linteris, G.T. A1 - Stoliarov, S.I. A1 - Lyon, R.E. A1 - Walters, R.N. A1 - Hofmann-Böllinghaus, Anja T1 - Prediction of the mass loss rate of polymer materials: Impact of residue formation N2 - Two different numerical simulation tools, Fire Dynamic Simulator (FDS) and ThermaKin, are investigated with respect to their capability to predict the mass loss rate of polymer materials exposed to different fires. For validation, gasification apparatus and cone calorimeter tests are conducted. The main focus is on the influence of residue formation. Therefore, poly (butylene terephthalate) (PBT) and PBT reinforced with glass fibres (PBT-GF) are investigated and compared. PBT decomposes almost completely, while PBT-GF forms residue. The materials are characterised in order to provide suitable input parameters. Additionally the total incident heat flux to the sample is measured. With accurate input parameters, FDS and ThermaKin predicted the pyrolysis behaviour of PBT very well. Only some limitations are identified regarding the residue-forming PBT-GF. Both numerical simulation tools demonstrate a high value regarding the assessment of parameters' relative impacts and thus the evaluation of optimisation routes in polymer and composite development. KW - Polymer KW - Pyrolysis simulation KW - Residue formation KW - Fire dynamics simulator (FDS) KW - ThermKin PY - 2012 U6 - https://doi.org/10.1016/j.combustflame.2012.03.012 SN - 0010-2180 SN - 1556-2921 VL - 159 IS - 9 SP - 2974 EP - 2984 PB - Elsevier CY - New York, NY AN - OPUS4-26382 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Weber, Gert A1 - Rethmeier, Michael T1 - Spot welding and weldbonding of high strength steels for lightweight auto body manufacturing T2 - EUROJOIN 8 - 8th European conference CY - Pula, Croatia DA - 2012-05-24 KW - Spot welding KW - Weldbonding KW - High strength steels KW - Process reliability KW - Mechanical properties of joints PY - 2012 SP - 633 EP - 643 AN - OPUS4-26383 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Brice, H. A1 - Theiler, Geraldine A1 - Gradt, Thomas T1 - Frictional behavior of material couples in superconducting MRI magnet systems at 4.2 K N2 - Windings in superconducting magnets operating at 4.2 K are highly susceptible to quenching caused by small frictional heat inputs. Small movements in the magnet system are inevitable during ramping due to the increasing electromagnetic forces. Friction pairs of polymer based materials have been investigated at 4.2 K to gain an understanding of their sliding behavior in conditions representative of superconducting MRI systems. The results indicate that polymer-polymer pairs experience unstable sliding behavior with repeated stick-slip whereas polymer-aluminum couples have stable sliding behavior up to high contact pressures of 20 MPa. KW - Cryotribology KW - Friction KW - MRI magnets KW - Stick-slip PY - 2012 U6 - https://doi.org/10.1109/TASC.2011.2175683 SN - 1051-8223 VL - 22 IS - 3 SP - 4400204-1 - 4400204-4 PB - Inst. CY - New York, NY, USA AN - OPUS4-26384 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Brandes, K. A1 - Neitzel, F. A1 - Weisbrich, S. A1 - Daum, Werner T1 - Lagrange-Multiplikatoren (LM) der Ausgleichsrechnung als Indikator für Strukturschäden N2 - Die ständige Überwachung von Bauwerken gewinnt zunehmend an Bedeutung. Mit Blick auf die Nachhaltigkeit ist die Verlängerung der Nutzungsdauer bestehender baulicher Konstruktionen von unschätzbarem Wert, sowohl aus finanziellen Gründen als auch unter Denkmalaspekten. Eine neue Methode zur Detektion von Strukturschädigungen basiert auf einer integrierten Auswertung von Messwerten verschiedener Sensoren nach der Methode der kleinsten Quadrate sowie der Interpretation der dabei auftretenden Langrange-Multiplikatoren. Diese Methode der Schädigungsanalyse wird anhand eines numerischen Beispiels aus einem Vier-Punkt-Biegeversuch mit einem Verbundträger näher erläutert. --------------------------------------------------------------------------------------------------------- Structural health monitoring of structures is gaining increasingly importance. With regard to sustainability it is of great value for both financial reasons (to extend the useful life of existing architectural structures) and the aspects of listed buildings. A new method for the detection of structural damage is based on an integrated analysis of measurements of different sensors according to the method of least squares and the interpretation of the occurring Lagrange Multipliers. This method of damage analysis is illustrated by a numerical example of a four-point bending test with a composite beam. KW - Bauwerk KW - Schädigung KW - Zustandsüberwachung KW - Schadensfrüherkennung KW - Ausgleichsrechnung KW - Lagrange-Multiplikator KW - Construction KW - Damage KW - Structural health monitoring KW - Damage detection KW - Curve fitting KW - Lagrange multiplier PY - 2012 U6 - https://doi.org/10.1524/teme.2012.0239 SN - 0340-837X SN - 0178-2312 SN - 0171-8096 VL - 79 IS - 7-8 SP - 348 EP - 358 PB - Oldenbourg CY - München AN - OPUS4-26385 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Daum, Werner A1 - Werthschützky, R. T1 - Strukturintegrierte Sensorik PY - 2012 U6 - https://doi.org/10.1524/teme.2012.9026 SN - 0340-837X SN - 0178-2312 SN - 0171-8096 VL - 79 IS - 7-8 SP - 335 EP - 336 PB - Oldenbourg CY - München AN - OPUS4-26386 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Krebber, Katerina A1 - Lenke, Philipp A1 - Liehr, Sascha A1 - Nöther, N. A1 - Wendt, Mario A1 - Wosniok, Aleksander A1 - Daum, Werner T1 - Structural health monitoring by distributed fiber optic sensors embedded into technical textiles N2 - Technical textiles with embedded distributed fiber optic sensors have been developed for the purposes of structural health monitoring in geotechnical and civil engineering. The distributed fiber optic sensors are based on Brillouin scattering in silica optical fibers and OTDR in polymer optical fibers. Such 'smart' technical textiles are used for reinforcement of geotechnical and masonry structures. The embedded fiber optic sensors provide online information about the condition of the structure and about the occurrence and location of any damage or degradation.-------------------------------------------------------------------------------------------------------------------------------------------------------- Technische Textilien mit integrierten faseroptischen Sensoren eröffnen neue Möglichkeiten der Zustandsüberwachung (structural health monitoring) in Geotechnik und Ingenieurbau. Die verteilt messenden Sensoren basieren auf der Brillouin-Streuung in Glasfasern und auf der OTDR in polymeroptischen Fasern. Derartige 'intelligente' technische Textilien werden in erster Line zur Verstärkung von geotechnischen Bauwerken und von Gebäuden genutzt. Die integrierten Sensoren liefern eine zeitnahe Information über den bestimmungsgemäßen Zustand des Bauwerks sowie über die Entstehung und den Ort von lokalen Bauwerksschäden. KW - Fiber optic sensor KW - Distributed sensor KW - Brillouin scattering KW - Polymer optical fiber KW - Strain sensor KW - Smart geotextiles KW - Faseroptischer Sensor KW - Verteilter Sensor KW - Brillouin-Streuung KW - Polymeroptische Faser KW - Dehnungssensor KW - Intelligentes Geotextil PY - 2012 U6 - https://doi.org/10.1524/teme.2012.0238 SN - 0340-837X SN - 0178-2312 SN - 0171-8096 VL - 79 IS - 7-8 SP - 337 EP - 347 PB - Oldenbourg CY - München AN - OPUS4-26387 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Pecher, Heike Susanne T1 - 5th Monolith summer school and symposium N2 - Beim Stichwort Monolith denkt sicherlich (noch) nicht jedermann unmittelbar an eine poröse stationäre Phase, die mittlerweile zunehmend in sämtlichen chromatographischen Techniken Anwendung findet. Doch bereits zum fünften Mal fand speziell zu diesem Thema die international besuchte und familiäre MSS in Slowenien statt, die in der Kleinstadt Ajdovscina mit einer dreitägigen Sommerschule begann und in der Küstenstadt Portoroz mit einem ebenfalls dreitägigen Symposium fortgesetzt wurde. Ajdovscina ist seit November letzten Jahres der Sitz des Entwicklungs- und Produktionszentrums der Firma BIA Separations, die Monolithe auf Basis von Polymethacrylat vertreibt und die Konferenz ausgerichtet hat. T2 - MSS 2012 - 5th Monolith summer school and symposium CY - Ajdovscina / Portoroz, Slovenia DA - 2012-06-01 KW - Chromatographie KW - Monolithische Materialien KW - DNA KW - Proteine PY - 2012 SN - 0939-0065 IS - 4 SP - 13 EP - 14 PB - Gesellschaft Deutscher Chemiker CY - Frankfurt, M. AN - OPUS4-26388 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Tölle, Florian A1 - Gumenyuk, Andrey A1 - Rethmeier, Michael A1 - Backhaus, A. A1 - Olschok, S. A1 - Reisgen, U. T1 - Mechanische Entlastung zur Eigenspannungsreduzierung in Strahlschweißnähten durch Anwendung eines defokussierten Strahls - Teil 1: Spannungsabbaumechanismus an linearen Strahlschweißnähten N2 - Schweißzugeigenspannungen in Strahlschweißnähten auf Höhe der lokalen Werkstoffstreckgrenze können die Bauteileigenschaften sowie deren Lebensdauer beeinflussen. Die Nutzung der Schweißquelle für eine nachträgliche Behandlung der geschweißten Bauteile bietet eine kostengünstige und flexible Methode zur Reduzierung dieser Spannungen. Dabei wird durch einen oszillierenden defokussierten Elektronen- bzw. Laserstrahl der Werkstoff beidseitig der Schweißnaht auf mehrere hundert Grad Celsius erwärmt, um dort zusätzliche Zugspannungsbereiche hervorzurufen. Die so erzeugten Längszugspannungszonen führen zu einer mechanischen Entlastung der Schweißnaht. Experimentelle Messungen zeigen, dass die Längseigenspannungen in der Schweißnaht mit diesem Verfahren um bis zu 70% reduziert werden können. Hierbei wurde neben der experimentellen Untersuchung dieses Verfahrens an Linearnähten an 5 mm dicken Blechen des Werkstoffs S355J2+N auch eine umfassende Analyse der Einflüsse der Verfahrensparameter auf die Spannungsreduktion mittels FEMSimulation durchgeführt. Anhand der Ergebnisse wird der Entlastungsmechanismus diskutiert. ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ Residual tensile welding stresses in beam welds at the level of the local yield strength of the material may influence the properties of components as well as their service lives. The utilisation of the welding source for the subsequent treatment of the welded components offers a cost-favourable and flexible method of reducing these stresses. In this respect, an oscillating defocused electron or laser beam serves to heat the material on both sides of the weld up to several hundred degrees Celsius in order to induce additional tensile stress regions there. The longitudinal tensile stress zones produced in this way lead to the mechanical relief of the weld. Experimental measurements show that the longitudinal residual stresses in the weld can be reduced by up to 70% with this process. In this case, not only was the experimental investigation into this process conducted on linear welds on 5 mm thick sheets made of the S355J2+N material but a comprehensive analysis of the influences of the process parameters on the stress reduction was also made by means of FEM simulation. The relief mechanism is discussed on the basis of the results. KW - Elektronenstrahlschweißen KW - Laserstrahlschweißen KW - Simulation und Berechnung KW - Spannungen KW - Wärmebehandlung KW - Electron beam welding KW - Laser welding KW - Simulation and calculation KW - Stresses KW - Heat treatment PY - 2012 SN - 0036-7184 VL - 64 IS - 6 SP - 332 EP - 340 PB - Verl. für Schweißen u. Verwandte Verfahren, DVS-Verl. CY - Düsseldorf AN - OPUS4-26340 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Woydt, Mathias T1 - Application des données tribologiques des matériaux PY - 2012 SN - 2114-2300 VL - 6 IS - BM 7 006v2 SP - 1 EP - 14 CY - Paris, France AN - OPUS4-26341 LA - fra AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Funk, C. A1 - Dietrich, Paul A1 - Gross, Thomas A1 - Min, Hyegeun A1 - Unger, Wolfgang A1 - Weigel, W. T1 - Epoxy-functionalized surfaces for microarray applications: surface chemical analysis and fluorescence labeling of surface species N2 - Methods for characterization of epoxy-functionalized substrates used for microarray applications, prepared by silanization with 3-glycidoxypropyltrimethoxysilane, have been developed. Contact angle measurements, X-ray photoelectron spectroscopy, time of flight secondary ion mass spectrometry and fluorescence based methods have been applied to investigate these epoxy-functionalized microarray substrates. The surface density of epoxy-functionalized glass slides was investigated by fluorescence labeling of surface species utilizing Rhodamine 110 as fluorescence probe. KW - Epoxy silane KW - Microarrays KW - Fluorescence KW - XPS KW - ToF-SIMS KW - Surface analysis PY - 2012 U6 - https://doi.org/10.1002/sia.3856 SN - 0142-2421 SN - 1096-9918 VL - 44 IS - 8 SP - 890 EP - 894 PB - Wiley CY - Chichester AN - OPUS4-26342 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Schwarz, Silke A1 - von Oertzen, Alexander T1 - Explosivstoffprüfung - Ringversuche der benannten Stellen KW - Explosivstoffe KW - Schwadenprüfung KW - Benannte Stelle KW - Richtlinie 93/15/EWG PY - 2012 SN - 0941-4584 VL - 34 IS - 2 SP - 5 EP - 7 PB - Deutscher Sprengverband CY - Siegen AN - OPUS4-26343 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Neumann, Martin A1 - Günther, U. A1 - Ballheimer, Viktor A1 - Linnemann, Konrad A1 - Wille, Frank A1 - Droste, Bernhard T1 - Experiences by German authority with safety case approach for welding seams as part of SNF transport package containments N2 - Federal Institute for Materials Research and Testing (BAM) is the responsible authority for the assessment of mechanical and thermal safety as well as quality issues within the licensing procedure for transport casks for radioactive materials. The assessment includes a brittle fracture analysis of all relevant cask components. For cask bodies where a steel bottom is welded to a steel shell, specimens for testing of sufficient fracture resistance can normally not be extracted directly from the welding seam area of the cask. Therefore, a methodology has to be developed to ensure compliance with the safety analysis considerations and the approved design specification. This paper describes such a methodology including brittle fracture analysis and de-termination of required material properties as well as aspects of quality assurance during manufacturing. T2 - RAMTRANSPORT 2012 - 9th International Conference on the Radioactive Materials Transport and Storage CY - London, UK DA - 2012-05-22 PY - 2012 IS - Session 4.2 RAM 18 SP - 1 EP - 6 AN - OPUS4-26344 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Pagenkopf, Marion A1 - Heming, Frank T1 - Numerische und experimentelle Untersuchungen am hinteren Anfahrschutz von Gefahrguttankfahrzeugen N2 - Bei der Beförderung von gefährlichen Gütern auf der Straße treten als zweithäufigste Unfallursache (nach dem Abkommen von der Fahrbahn) Auffahrunfälle auf. Im Falle von Tankfahrzeugen haben diese teilweise verheerende Auswirkungen bei einer Penetration des Transporttanks. Deshalb werden Bedingungen für die Beförderung von gefährlichen Gütern in Tankfahrzeugen in verkehrsträgerspezifischen Vorschriften (ADR) vorgegeben, um solche Ereignisse zu unterbinden bzw. deren Auswirkungen zu minimieren. Die dem Beitrag zugrunde liegenden Untersuchungen fokussieren auf das Bauteil 'hinterer Anfahrschutz', bei dem im ADR keine verbindlichen Angaben zu technischen Anforderungen wie Festigkeitseigenschaften und vertikaler Position am Fahrzeug gemacht oder Prüfungen gefordert werden. Im Sinne notwendigen Erkenntnisgewinns wurden sowohl analytische wie auch praktische Versuche an realen Schutzprofilen durchgeführt, die zum Ziel hatten, die technische Belastungsgrenze bzw. das Arbeitsaufnahmevermögen zu ermitteln. PY - 2012 SN - 2191-0073 N1 - Geburtsname von Pagenkopf, Marion: Nitsche, M. - Birth name of Pagenkopf, Marion: Nitsche, M. VL - 2 IS - 7/8 SP - 26 EP - 29 PB - Springer-VDI-Verl. CY - Düsseldorf AN - OPUS4-26345 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Brauser, Stephan A1 - Schwenk, Christopher A1 - Rethmeier, Michael A1 - Noack, T. A1 - Jüttner, S. T1 - Influence of welding-induced cracks on the fatigue strength of resistance-spot-welded joints made of high-strength austenitic steel N2 - In the rough conditions in the fabrication of automobile bodies, it is not always possible to avoid welding-induced imperfections such as cracks during the resistance spot welding of high-strength steels. In this respect, the influence of such cracks on the fatigue strength particularly of modern high-strength austenitic steels is not sufficiently well-known at present. The influence of welding cracks with various positions and formations was therefore investigated within the framework of this paper. In this case, the analysis of the standardised stiffness courses of specimens and the comparison of the numbers of failure stress cycles served to prove that the surface cracks produced without any spatter in the centre, interfacial region and peripheral region of the weld nugget do not have any negative influence on the fatigue strength of the high-strength austenitic material investigated here. Specimens which were manufactured with welding spatter and exhibit cracks in the peripheral region show considerably higher numbers of failure stress cycles than crack-free reference specimens. PY - 2012 SN - 1612-3433 VL - 11 IS - 4 SP - 232 EP - 235 PB - DVS - German Welding Society CY - Düsseldorf AN - OPUS4-26346 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Kahlau, R. A1 - Gnutzmann, Tanja A1 - Emmerling, Franziska A1 - Rademann, K. A1 - Rössler, E.A. T1 - Quinaldine: Accessing two crystalline polymorphs via the supercooled liquid N2 - Quinaldine (2-methyl quinoline) is a liquid at room temperature, which can be supercooled to reach finally the glassy state. By heating the glass above the glass transition temperature Tg = 180 K the sample performs two subsequent transitions into, likewise, dielectrically active phases. Thus, the reorientational relaxations of these phases as well as the kinetics of the phase transitions can be tracked in a highly resolved way by dielectric spectroscopy. X-ray diffraction analysis clearly shows two structurally different crystalline phases in addition to the supercooled liquid. Calorimetric measurements support the notion of first order phase transitions, occurring irreversibly in the supercooled regime, and suggest that the intermediate crystalline phase is metastable, too. Analyzing the quite distinct dielectric relaxation strengths, we discuss the possible nature of the two crystalline phases. Additionally, a very similar behavior to quinaldine is observed for 3-methyl quinoline, indicating a broad field of polymorphism among the quinoline derivatives. KW - Calorimetry KW - Dielectric liquids KW - Dielectric relaxation KW - Glass transition KW - Liquid structure KW - Organic compounds KW - Polymorphism KW - Supercooling KW - X-ray diffraction PY - 2012 U6 - https://doi.org/10.1063/1.4738583 SN - 0021-9606 SN - 1089-7690 VL - 137 IS - 5 SP - 054505-1 - 054505-10 PB - American Institute of Physics CY - Melville, NY AN - OPUS4-26347 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Grothausmann, R. A1 - Zehl, G. A1 - Manke, I. A1 - Fiechter, S. A1 - Bogdanoff, P. A1 - Dorbandt, I. A1 - Kupsch, Andreas A1 - Lange, Axel A1 - Hentschel, Manfred P. A1 - Schumacher, G. A1 - Banhart, J. T1 - Nanometer-Tomographie: kleinste Katalysatorteilchen erblicken - Mit Elektronen und Computern die mobile Brennstoffzelle erforschen KW - Electron tomography KW - Polymer electrolyte membrane fuel cell (PEMFC) KW - Reconstruction algorithm KW - DIRECTT PY - 2012 U6 - https://doi.org/10.1002/maco.201290007 SN - 0947-5117 SN - 1521-4176 VL - 63 IS - 2 SP - 1 PB - Wiley-VCH Verl. CY - Weinheim AN - OPUS4-26348 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Yin, Huajie A1 - Schönhals, Andreas T1 - Glass transition and segmental dynamics of ultrathin poly(bisphenol A carbonate) films N2 - Broadband dielectric spectroscopy (BDS), capacitive scanning dilatometry (CSD) and differential ac-chip calorimetry (DACC) were used to examine the glass transition and segmental dynamics of ultrathin poly(bisphenol A carbonate) (PBAC) films. An increase of Vogel temperature (T0) as well as glass transition temperature (Tg) with decreasing film thickness was observed when the thickness is less than 20 nm. Moreover, the segmental relaxation time at a fixed temperature was found to increase for the aluminium (Al) capped PBAC films (<20 nm) in the BDS measurements, whereas in the DACC measurements no thickness dependency of the segmental dynamics was detected within the experimental error limit for the supported PBAC films (10-55 nm). These properties are discussed in terms of the thin film geometry and the relevant interfacial interaction between the polymer and the substrate. T2 - 6th International conference on times of polymers (TOP) and composites CY - Ischia, Italy DA - 2012-06-10 KW - Ultrathin film KW - Poly(bisphenol A carbonate) KW - Glass transition KW - Aluminium KW - Dielectric thin films KW - Differential scanning calorimetry KW - Permittivity KW - Polymer films PY - 2012 SN - 978-0-7354-1061-9 U6 - https://doi.org/10.1063/1.4738399 N1 - Serientitel: AIP conference proceedings – Series title: AIP conference proceedings IS - 1459 SP - 64 EP - 67 AN - OPUS4-26349 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Ballheimer, Viktor A1 - Wille, Frank A1 - Rolle, Annette A1 - Droste, Bernhard T1 - Mechanical behaviour of high burn-up SNF under normal and accident transport conditions - present approaches and perspectives N2 - Transport packages for spent fuel have to meet the International Atomic Energy Agency requirements for different transport conditions. Physical state of spent fuel and fuel rod cladding as well as geometric configuration of fuel assemblies are important inputs for the evaluation of package capabilities under these conditions. In this paper, the mechanical behaviour of high burn-up spent fuel assemblies under transport conditions is analysed with regard to assumptions to be used in the activity release and criticality safety analysis. In particular the different failure modes of the fuel rods (fine cracks or complete breakage), which can cause release of gas, volatiles, fuel particles or fragments have to be properly considered in these assumptions. In view of the complexity of interactions between the fuel rods as well as between fuel assemblies, basket, and cask containment, the exact mechanical analysis of such phenomena is nearly impossible. The gaps in information concerning the material properties of cladding and pellets, especially for the high burn-up fuel, make the analysis more complicated additionally. In this context some practical approaches based on experiences of BAM Federal Institute for Material Research and Testing within safety assessment of packages for transport of spent fuel are discussed. T2 - ASME 2012 Pressure vessels & piping division conference CY - Toronto, Ontario, Canada DA - 15.07.2012 KW - Fuel rods KW - High burn-up KW - Mechanical behaviour KW - Transport conditions PY - 2012 SP - PVP2012-78302, 1-7 PB - American Society of Mechanical Engineers CY - New York AN - OPUS4-26320 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Nehrig, Marko A1 - Bletzer, Claus Wilhelm A1 - Wille, Frank T1 - Pressure build-up inside packages containing wet intermediate level radioactive waste due to thermal loads T2 - ASME 2012 Pressure vessels & piping division conference CY - Toronto, Ontario, Canada DA - 2012-07-15 KW - Radioactive material KW - Pressure build-up KW - Wet intermediate level waste PY - 2012 SP - PVP2012-78282, 1-6 PB - American Society of Mechanical Engineers CY - New York AN - OPUS4-26321 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Linnemann, Konrad A1 - Ballheimer, Viktor A1 - Sterthaus, Jens A1 - Wille, Frank T1 - Methodological aspects for finite element modeling of lid systems for Type B(U) transport packages T2 - 'RAMTRASNPORT 2012 CY - London, England DA - 2012-05-22 PY - 2012 AN - OPUS4-26324 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Nehrig, Marko A1 - Bletzer, Claus Wilhelm A1 - Wille, Frank T1 - Safety Assessment Aspects of Type-B(U) Packages Containing Wet Intermediate Level Waste T2 - RAMTRASNPORT 2012 CY - London, England DA - 2012-05-22 PY - 2012 AN - OPUS4-26325 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Ballheimer, Viktor A1 - Rolle, Annette A1 - Droste, Bernhard T1 - Mechanical Behaviour of High burn-Up SNF under Normal and Accident Transport conditions - Present Approaches an Perspectives - T2 - ASME Pressure Vessels & Piping Division Conference 2012 CY - Toronto, Canada DA - 2012-07-15 PY - 2012 AN - OPUS4-26326 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Nehrig, Marko A1 - Bletzer, Claus Wilhelm A1 - Wille, Frank T1 - Pressure build-up Inside Packages Containing Wet Intermediate Level Radioactive Waste due to Thermal Loads T2 - ASME PVP 2012 CY - Toronto, Canada DA - 2012-07-15 PY - 2012 AN - OPUS4-26327 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Neumann, Martin A1 - Ballheimer, Viktor A1 - Sterthaus, Jens A1 - Schubert, Sven A1 - Wille, Frank T1 - Material Characterization and modeling within safety analysis of packages for transport of radioactive material T2 - ASME 2012 Pressure Vessels & Piping Division Conference CY - Toronto, Canada DA - 2012-07-15 PY - 2012 AN - OPUS4-26328 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Droste, Bernhard T1 - Development of an IAEA Guidance for an Integrated Safety Case for Spent Nuclear Fuel Transport and Storage Casks T2 - RAMTRANSPORT 2012 Radioactive Materials Transport and Storage Conference, Royal Geographical Society CY - London, England DA - 2012-05-23 PY - 2012 AN - OPUS4-26329 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Kreutzbruck, Marc A1 - Prager, Jens A1 - Boehm, Rainer A1 - Kitze, Jessica A1 - Brekow, Gerhard T1 - Progress in acoustical defect sizing NDT methods for the inspection of power-plant components N2 - The demand of improved NDT methods with proper visualization and sizing capabilities is a persistent trend in maintenance and manufacturing quality inspection. Especially when dealing with high quality standards in conjunction with safety-critical components in the sector of energy and transportation quantitative NDT techniques are vital to provide reliable quality control systems and a corresponding deeper insight into the component structure for a further fracture-mechanical estimation. The paper thus focuses the progress of the defect sizing capabilities of modern Ultrasonic Testing (UT). In Ultrasonic Testing the SAFT-algorithm (Synthetic Aperture Focusing Technique) currently experiences a renaissance. The method is based on combining the data of different transducer positions with their corresponding varied propagating time and it is currently applied in several industrial applications. SAFT enhances the SNR and the spatial resolution and is thus a valuable tool when it comes to improved defect detection and sizing. A tomographic-like data mapping is illustrated on several examples, where adapted phased array systems were used for the inspection of turbine components and also for a cladded mock-up of a nuclear reactor pressure vessel. In a statistical investigation we also performed a comparison with other defect sizing methods like TOFD (Time of flight diffraction). T2 - 18th WCNDT - World conference on nondestructive testing CY - Durban, South Africa DA - 2012-04-16 KW - SAFT KW - TOFD KW - Cracks KW - Phased Array PY - 2012 SN - 978-0-620-52872-6 SP - 1 EP - 8 (Paper 497) AN - OPUS4-26350 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Kreutzbruck, Marc A1 - Neubauer, Andreas A1 - Pelkner, Matthias A1 - Reimund, Verena T1 - Adapted GMR array used in magnetic flux leakage inspection N2 - GMR sensors are increasingly used for magnetic surface inspection due to their high sensitivity and high spatial resolution. In case of simple planar or cylindrical shaped components, the GMR-based inspection procedure can be automated easily. In order to reduce the inspection time we present a GMR-based NDT-system consisting of a yoke and a coil as a local magnetization unit. This way the global magnetization step and, if necessary, the corresponding demagnetization cycle can be avoided reducing the number of working steps. Using a local probe we measured plates, bearings, and rails, each of which containing real fatigue cracks and reference artificial cracks of different depths and orientations. Cracks with a depth of 40 ìm could be resolved with a signalto- noise ratio of about 20. A reduction of the measuring time can be obtained using a sensor array. We present an optimized sensor array for nondestructive testing application, where gradiometric arranged GMR layers were fabricated on a board with up to 48 GMR sensors. Each sensor detects the vertical field gradient. In our example the baseline was chosen to be 250 ìm which efficiently suppress external background fields without losing sensitivity for the detection of surface breaking defects. T2 - 18th WCNDT - World conference on nondestructive testing CY - Durban, South Africa DA - 2012-04-16 KW - Flux leakage testing KW - GMR-Sensors KW - Sensor arrays PY - 2012 SN - 978-0-620-52872-6 SP - 1 EP - 8 (Paper 498) AN - OPUS4-26351 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Schlichting, Joachim A1 - Ziegler, Mathias A1 - Maierhofer, Christiane A1 - Kreutzbruck, Marc T1 - Flying laser spot thermography for the fast detection of surface breaking cracks N2 - We report on recent developments in the detection of surface breaking cracks using flying laser spot thermography. Application of an infrared camera for mapping the thermal radiation after excitation with a diode laser equipped with an optical scanner allows us to examine a surface containing cracks in an entirely non-destructive, contactless and fast way, without even moving the camera. We developed an efficient and robust algorithm that can be applied directly to the recorded thermal sequences, and that derives a single image containing all crack signatures. For this crack detection technique, no specific synchronisation between laser and camera is required. Hence, our approach is suitable for an upgrade of existing thermographic systems. The feasibility of the proposed procedure is proven by testing an artificial test sample and a piece of rail that comprises roll contact fatigue cracks and by comparing the results with magnetic particle testing. T2 - 18th WCNDT - World conference on nondestructive testing CY - Durban, South Africa DA - 2012-04-16 KW - Thermography KW - Cracks KW - Laser KW - Flying spot PY - 2012 SN - 978-0-620-52872-6 SP - 1 EP - 7 (Paper 499) AN - OPUS4-26352 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Linnemann, Konrad A1 - Ballheimer, Viktor A1 - Sterthaus, Jens A1 - Wille, Frank T1 - Methodological aspects for finite element modeling of lid systems for type B(U) transport packages N2 - The regulatory compliance of the containment system is of essential importance for the assessment process of Type B(U) transport packages. The requirements of the IAEA safety standards for transport conditions implies high loading on the containment system. The integrity of the containment system has to be ensured in mechanical and thermal tests. The containment system of German SNF and HLW transport packages usually includes bolted lids with metal gaskets. The finite element (FE) method is recommended for the analysis of lid systems according to the guideline BAM-GGR 012 for assessment of bolted lid and trunnion systems. FE analyses provide more accurate and detailed information about loading and deformation of such kind of structures. The results allow the strength assessment of the lid and bolts as well as the evaluation of relative displacements between the lid and the cask body in the area of the gasket groove. This paper discusses aspects concerning FE simulation of lid systems for Type B(U) packages for the transport of SNF and HLW. The work is based on the experiences of BAM Federal Institute for Materials Research and Testing as the German competent authority for the mechanical design assessment of such kind of packages. The issues considered include modeling strategies, analysis techniques and the interpretation of results. A particular focus of this paper is on the evaluation of the results with regard to FE accuracy, influence of the FE contact formulation and FE modeling techniques to take the metallic gasket into account. T2 - RAMTRANSPORT 2012 - 9th International Conference on the Radioactive Materials Transport and Storage CY - London, UK DA - 2012-05-22 PY - 2012 IS - Paper 2.2 RAM 27 SP - 1 EP - 8 AN - OPUS4-26353 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Schmidt, Wolfram A1 - Wend, Dirk A1 - Kühne, Hans-Carsten A1 - Meng, Birgit T1 - The influence of superplasticiser modifications on early hydration processes N2 - Self-compacting concrete (SCC) differs substantially from normal concrete as regards the quantity of superplasticiser dosage. The functionality of superplasticisers, based on the polycarboxylate ether (PCE) superplasticiser customary with SCC, is nowadays very well understood at construction material research level. However, knowledge concerning pertinent correlations does not always permeate practice to an equal extent. PCEs are extremely polymorphic as opposed to earlier superplasticiser groups, which still possess a considerable proportion of the superplasticiser market. The geometry of polymers can be adjusted individually to performance characteristics required for certain uses. Yet, in selecting a superplasticiser for its specified rheological properties, a very strong influence can equally be exerted simultaneously on the subsequent hydration process. The charge density of the PCE employed also plays a key role in connection with both rheology and early hydration. KW - Rheology KW - Early cement hydration KW - Polycarboxylate ether vicat KW - Shrinkage PY - 2012 SN - 1437-9023 VL - 4 SP - 64 EP - 69 PB - ad-media-Verl. CY - Köln AN - OPUS4-26355 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Schmidt, Wolfram A1 - Wend, Dirk A1 - Kühne, Hans-Carsten A1 - Meng, Birgit T1 - Einfluss der Fließmittelmdoifikation auf Prozesse während der frühen Hydratation von selbstverdichtenden Bindemitteln KW - Rheologie KW - Frühe Zementhydratation KW - Polycarboxylatether KW - Vicat KW - Schwinden PY - 2012 SN - 1439-7706 VL - 4 SP - 66 EP - 71 PB - ad-media-Verl. CY - Köln AN - OPUS4-26356 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Mandel, K. A1 - Szczerba, Wojciech A1 - Thünemann, Andreas A1 - Riesemeier, Heinrich A1 - Girod, Matthias A1 - Sextl, G. T1 - Nitric acid-stabilized superparamagnetic iron oxide nanoparticles studied with X-rays N2 - Agglomerated superparamagnetic iron oxide nanoparticles can easily and in large scale be precipitated from iron salt solutions. Although the process is well known, it is ambiguously either assumed that magnetite or maghemite is obtained. The first part of our study clarifies this question using X-ray absorption spectroscopy. For further processing of the nanoparticles, i.e., for giving them a surface functionality or incorporating them into composites, it is important to break the agglomerates and individualize the particles at first. This can effectively be done with nitric acid treatment. The influence of this process on the particles chemistry and structure was analyzed in great detail using X-ray diffraction, X-ray absorption, and smallangle X-ray scattering. In contrast to our expectation, no oxidation from magnetite (Fe3O4) to maghemite (γ- Fe2O3) was found; the formal valence of the particles in any case is magnetite (Fe3O4). Instead, an increase in the particles' surface disorder was discovered from X-ray absorption analyses and high-resolution transmission electron microscopy. The acid treatment roughens and distorts the surface of the nanoparticles which is connected with an increased spin disorder. KW - XANES KW - EXAFS KW - SAXS KW - Coprecipitation KW - Iron oxide spectra KW - Ferrofluid PY - 2012 U6 - https://doi.org/10.1007/s11051-012-1066-3 SN - 1388-0764 SN - 1572-896X VL - 14 IS - 8 SP - 1066/1 EP - 9 PB - Kluwer CY - Dordrecht AN - OPUS4-26357 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Thöns, Sebastian A1 - Faber, M.H. A1 - Rücker, Werner T1 - Ultimate limit state model basis for assessment of offshore wind energy converters N2 - This paper establishes the model basis regarding the ultimate limit state consisting of structural, loading, and probabilistic models of the support structure of offshore wind energy converters together with a sensitivity study. The model basis is part of a risk based assessment and monitoring framework and will be applied for establishing the 'as designed and constructed' reliability as prior information for the assessment and as a basis for designing a monitoring system. The model basis is derived considering the constitutive physical equations and the methodology of solving these which then in combination with the ultimate limit state requirements leads to the specific constitutive relations. As a result finite element models based on shell elements incorporating a structural and a loading model are introduced and described in detail. Applying these models the ultimate capacity of the support structure and the tripod structure are determined with a geometrically and materially nonlinear finite element analysis. The observed failure mechanisms are the basis for the definition of the ultimate limit state responses. A probabilistic model accounting for the uncertainties involved is derived on the basis of literature review and measurement data from a prototype Multibrid M5000 support structure. In combination with the developed structural and loading models, sensitivity analyses in regard to the responses are performed to enhance the understanding and to refine the developed models. To this end, as the developed models necessitate substantial numerical efforts for the probabilistic response analysis predetermined designs of numerical experiments are applied for the calculation of the sensitivities using the Spearman rank correlation coefficient. With this quantification of the sensitivity of the random variables on the responses including nonlinearity the refinement of the model is performed on a quantitative basis. KW - Condition monitoring KW - Failure analysis KW - Finite element analysis KW - Offshore installations KW - Probability KW - Risk analysis KW - Shells (structures) KW - Structural engineering KW - Wind power KW - Model basis KW - Offshore wind KW - Support structure KW - Sensitivity KW - Ultimate limit state PY - 2012 U6 - https://doi.org/10.1115/1.4004513 SN - 0892-7219 VL - 134 IS - 3 SP - 031904-1 - 031904-9 CY - Fairfield, NJ AN - OPUS4-26358 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - THES A1 - Feistkorn, Sascha T1 - Gütebewertung qualitativer Prüfaufgaben in der zerstörungsfreien Prüfung im Bauwesen am Beispiel des Impulsradarverfahrens KW - GPR KW - POD KW - Detektionswahrscheinlichkeit KW - a90/95 PY - 2012 SN - 978-3-410-65208-3 SN - 0171-7197 IS - 603 SP - 1 EP - 159 PB - Beuth CY - Berlin AN - OPUS4-26359 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Maierhofer, Christiane A1 - Reischel, Mercedes A1 - Steinfurth, Henrik A1 - Röllig, Mathias A1 - Myrach, Philipp A1 - Ziegler, Mathias ED - Cardone, G. T1 - Development of reference test specimens for the standardisation of active thermography with flash excitation T2 - QIRT 11 - 11th International conference on Quantitative InfraRed Thermography CY - Naples, Italy DA - 2012-06-11 KW - Active thermography KW - Flash lamp KW - Standardisation KW - Reference test specimen PY - 2012 SP - 1 EP - 10(?) AN - OPUS4-26360 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Maierhofer, Christiane T1 - Neues aus der Normung zur Thermographie KW - Normung KW - DIN KW - CEN KW - ISO KW - Thermografie KW - Aktive Thermografie PY - 2012 SN - 1616-069X SN - 0948-5112 VL - 129 IS - April SP - 8 EP - 9 PB - Deutsche Gesellschaft für Zerstörungsfreie Prüfung CY - Berlin AN - OPUS4-26361 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Komann, Steffen A1 - Droste, Bernhard A1 - Gröke, Carsten T1 - Verpackungen Bestandsaufnahme - Pflichten und Vorschriften bei schwach radioaktiven Stoffen PY - 2012 SN - 0944-6117 IS - 6 SP - 20 EP - 25 PB - Vogel CY - München AN - OPUS4-26362 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Komann, Steffen A1 - Kiyak, Yusuf A1 - Wille, Frank A1 - Zerbst, Uwe A1 - Weber, Mike A1 - Klingbeil, Dietmar T1 - Assessment of ductile cast iron fracture mechanics analysis within licensing of German transport packages T2 - ASME 2012 Pressure vessels & piping division conference CY - Toronto, Ontario, Canada DA - 2012-07-15 PY - 2012 SP - PVP2012-78213, 1-7 PB - American Society of Mechanical Engineers CY - New York AN - OPUS4-26363 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Schempp, Philipp A1 - Cross, C.E. A1 - Häcker, Ralf A1 - Pittner, Andreas A1 - Rethmeier, Michael T1 - Influence of Grain Size on Mechanical Properties of Aluminium GTA Weld Metal T2 - 65th Annual Assembly & International Conference of the International Institute of Welding CY - Denver, CO, USA DA - 2012-07-08 PY - 2012 AN - OPUS4-26365 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Weber, Gert A1 - Rethmeier, Michael T1 - Spot Welding and Weldbonding of High Strength for Leightweight Auto Body Manufacturing T2 - EUROJOIN 8 CY - Pula, Croatia DA - 2012-05-24 PY - 2012 AN - OPUS4-26366 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Krause, U. A1 - Schmidt, Martin A1 - Wanke, Ch. T1 - Determination of measurement uncertainties in adiabatic hot storage experiments for flammable dusts T2 - 9th International Seminar on Hazars, Pevention and Mitigation of Industrial CY - Kraków, Poland DA - 2012-07-22 PY - 2012 AN - OPUS4-26367 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Mishra, Kirti Bhushan A1 - Wehrstedt, Klaus-Dieter T1 - CFD analysis of peroxy-fuel combustion T2 - 34th International Symposium on Combustion CY - Warsaw, Poland DA - 2012-07-29 PY - 2012 AN - OPUS4-26368 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Knorr, Annett A1 - Fritzsche, Lutz T1 - Transformation of the 2nd step of a perester synthesis from semi-batch to continuous mode T2 - 12th International Conference on Microreaction Chemistry CY - Lyon, France DA - 2012-02-20 PY - 2012 AN - OPUS4-26369 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Droste, Bernhard T1 - Überblick über das BAM-Testgelände Technische Sicherheit T2 - 3. RAM-Behältersicherheitstage, BAM/TTS CY - Baruth, Germany DA - 2012-03-22 PY - 2012 AN - OPUS4-26330 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Droste, Bernhard T1 - Transport nach langer Zwischenlagerung; Regelwerksentwicklung bei der IAEA T2 - 3. RAM-Behältersicherheitstage, BAM CY - Berlin, Germany DA - 2012-03-22 PY - 2012 AN - OPUS4-26331 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Neumann, Martin A1 - Günther, Uve A1 - Ballheimer, Viktor A1 - Wille, Frank T1 - Experiences by german authority with safety case approach for welding seams as part of SNF transport package containments T2 - RAMTRANSPORT 2012 CY - London, England DA - 2012-05-22 PY - 2012 AN - OPUS4-26332 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Komann, Steffen A1 - Kiyak, Yusuf A1 - Wille, Frank A1 - Zerbst, Uwe A1 - Weber, Mike A1 - Klingbeil, Dietmar T1 - Assessment of ductile Cast Iron Fracture Mechanics Analysis within Licensing of German Transport Packages T2 - ASME-Conference 2012 CY - Toronto, Canada DA - 2012-07-15 PY - 2012 AN - OPUS4-26333 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Komann, Steffen A1 - Kiyak, Yusuf A1 - Wille, Frank A1 - Zerbst, Uwe A1 - Weber, Mike A1 - Klingbeil, Dietmar T1 - Assessment of Ductile Cast Iron Fracture Mechanics Analysis within Licensing of German Transport Packages T2 - RAMTRANSPORT 2012, Royal Geographical Society CY - London, England DA - 2012-05-23 PY - 2012 AN - OPUS4-26334 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Komann, Steffen A1 - Gröke, Carsten A1 - Droste, Bernhard T1 - Prüfung der qualitätssichernden Maßnahmen an Verpackungen püfpflichtiger Versandstücke durch die BAM T2 - 3. RAM-Behältersicherheitstage, BAM CY - Berlin, Germany DA - 2012-03-22 PY - 2012 AN - OPUS4-26335 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Komann, Steffen A1 - Droste, Bernhard A1 - Wille, Frank A1 - Linnemann, Konrad T1 - Transport of Large Nucklear Power Plant Components - Experiences in Mechanical Desig Assessment - T2 - 3. RAM-Behältersicherheitstage, BAM CY - Berlin, Germany DA - 2012-03-22 PY - 2012 AN - OPUS4-26336 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Herbst, Tristan A1 - Meng, Birgit A1 - Rübner, Katrin T1 - Ganzheitliche Eignungsbewertung von Sekundärrohstoffen für den Einsatz in Beton N2 - Der Einsatz von Sekundärrohstoffen im Betonbau kann einen wesentlichen Beitrag zu einer nachhaltigen Ressourcenwirtschaft im Bauwesen leisten. Sekundärrohstoffe (Recycling-Baustoffe, RC-Baustoffe) finden bereits Anwendung als Roh- bzw. Brennstoffe in der Portlandzementklinkerherstellung, als Zementbestandteile, als Betonzusatzstoffe sowie als sekundäre Gesteinskörnungen in Beton. In einem Teilprojekt des DAfStb/BMBF-Verbundforschungsvorhabens 'Nachhaltig Bauen mit Beton' wurde das Einsatzpotenzial von Sekundärrohstoffen in Beton untersucht. Hierbei spielen sowohl technische als auch ökologische und ökonomische Fragestellungen eine wichtige Rolle. Vor diesem Hintergrund wurde eine Bewertungsgrundlage mit ganzheitlicher Betrachtung von Nachhaltigkeitsaspekten (Technik, Ökologie, Ökonomie) ausgearbeitet. Dieses Bewertungskonzept umfasst die vier Bewertungsschritte: I. Grundsätzliche Überlegungen, II. Vorteile für das nachhaltige Bauen, III. Alternative Bewertungswege und IV. Sensitivitätsanalysen. Das Bewertungskonzept wurde am Beispiel der bereits im Betonbau eingesetzten rezyklierten Gesteinskörnungen entwickelt.---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Nowadays there are several applications of secondary mineral materials and residues. In the framework of the German research project 'Sustainable Building with Concrete', a concept to assess the applicability of already used and new secondary materials in concrete has been developed. It considers sustainability aspects and includes the following four assessment steps: I. Basic considerations, II. Advantages for sustainable construction, III. Alternative paths of application, and IV. Sensitivity analysis. Depending on changing technical, ecological and economic aspects, the assessment has to be performed for changed technical, ecological and economic conditions as necessity arises. KW - Nachhaltigkeit KW - Baustoffe KW - Betontechnologie KW - Sustainability KW - Sustainable evaluation KW - Holistic concept KW - Secondary materials KW - Secondary aggregates KW - Concrete KW - Allgemeines PY - 2012 U6 - https://doi.org/10.1002/best.201200025 SN - 0005-9900 SN - 1437-1006 VL - 107 IS - 8 SP - 533 EP - 539 PB - Ernst CY - Berlin AN - OPUS4-26337 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Heinze, Christoph A1 - Michael, Thomas A1 - Pittner, Andreas A1 - Rethmeier, Michael T1 - Schwierigkeiten bei der Anwendung der aktuellen Normung in Bezug auf Mikrorisse in Schweißverbindungen hochfester vergüteter Feinkornbaustähle N2 - Die aktuelle Normung bezüglich mikroskopischer Untersuchungen von Schweißverbindungen und die Zulässigkeit von Mikrorissen sowie deren Definition ist nicht eindeutig. Nach der Darstellung derzeit gültiger Normen im Bereich der Bewertung von Schweißnähten, Qualifizierung von Schweißverfahren und Ausführung von Schweißverbindungen, wird auf Grundlage aktueller Schweißversuche an hochfesten vergüteten Feinkornbaustählen die Problematik von Mikrorissen diskutiert. Offene Punkte und Fragen bzw. Verbesserungsmöglichkeiten werden aufgezeigt und zur Diskussion gestellt. Schließlich wird auf die Klärung des Einflusses von Mikrorissen auf die mechanisch- technologischen Werkstoffkennwerte der Schweißverbindung unter statischer sowie zyklischer Beanspruchung hingewiesen. --------------------------------------------------------------------------------------------------------------------------------------------------------------- Neither the latest standardisation with regard to microscopic investigations on welded joints nor the permissibility of microcracks and their definition are unambiguous. According to the representation of currently applicable standards in the fields of the assessment of welds, the qualification of welding processes and the execution of welded joints, the problems associated with microcracks are discussed on the basis of the latest welding tests on high-strength quenched-and-tempered fine-grained structural steels. Not only outstanding points and questions but also improvement possibilities are indicated and opened for discussion. Finally, attention is drawn to the clarification of the influence of microcracks on the mechanical- technological material parameters of the welded joint subjected to both static and cyclic stresses. KW - Festigkeit KW - Hochfester Stahl KW - Normen KW - Rissbildung KW - Schweißnahtfehler KW - Werkstofffragen KW - Strength KW - High-strength steel KW - Standards KW - Crack formation KW - Weld defects KW - Material questions PY - 2012 SN - 0036-7184 VL - 64 IS - 7 SP - 412 EP - 416 PB - Verl. für Schweißen u. Verwandte Verfahren, DVS-Verl. CY - Düsseldorf AN - OPUS4-26338 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Tölle, Florian A1 - Gumenyuk, Andrey A1 - Rethmeier, Michael A1 - Backhaus, A. A1 - Olschok, S. A1 - Reisgen, U. T1 - Mechanische Entlastung zur Eigenspannungsreduzierung in Strahlschweißnähten durch Anwendung eines defokussierten Strahls - Teil 2: Qualifizierung für komplexe Nahtgeometrien N2 - Schweißzugeigenspannungen in Strahlschweißnähten auf Höhe der lokalen Werkstoffstreckgrenze können die Bauteileigenschaften sowie deren Lebensdauer negativ beeinflussen. Die Nutzung der Schweißquelle für eine nachträgliche Behandlung der geschweißten Bauteile bietet eine kostengünstige und flexible Methode zur Reduzierung dieser Spannungen. Dabei wird durch einen oszillierenden defokussierten Elektronen- bzw. Laserstrahl, der Werkstoff beidseitig der Schweißnaht auf mehrere hundert Grad Celsius erwärmt, um dort zusätzliche Zugspannungsbereiche hervorzurufen. Die so erzeugten Längszugspannungszonen führen zu einer mechanischen Entlastung der Schweißnaht. Experimentelle Messungen der Längseigenspannungen an linearen Elektronen- und Laserstrahlschweißnähten im ersten Teil des Beitrags zeigten, dass die Spannungen mit diesem Verfahren um bis zu 70% reduziert werden können. In weiteren experimentellen Untersuchungen wird dieses Verfahren für kompliziertere Schweißnahtgeometrien getestet. An axialen sowie radialen Rundnähten an ferritischen Werkstoffen konnten ebenfalls hohe Spannungsreduktionen von über 50% erzielt werden. Zudem wurde dieses Verfahren mit einer für das Schweißen üblichen Laserstrahlschweißoptik ohne Scan-Funktion geprüft. Hierbei zeigte das Wärmebehandeln in zwei Arbeitsschritten noch größere Spannungsreduktionen im Vergleich zur Anwendung einer Laserstrahlscanneroptik zur quasisimultanen Wärmebehandlung auf beiden Seiten der Schweißnaht. ------------------------------------------------------------------------------------------------------------------------------------------- Residual tensile welding stresses in beam welds at the level of the local yield strength of the material may influence the properties of components as well as their service lives. The utilisation of the welding source for the subsequent treatment of the welded components offers a cost-favourable and flexible method of reducing these stresses. In this respect, an oscillating defocused electron or laser beam serves to heat the material on both sides of the weld up to several hundred degrees Celsius in order to induce additional tensile stress regions there. The longitudinal tensile stress zones produced in this way lead to the mechanical relief of the weld. Experimental measurements of the longitudinal residual stresses on linear electron and laser beam welds in the first part of the article showed that the stresses can be reduced by up to 70% with this process. In further experimental investigations, this process is tested for more complicated weld geometries. It was also possible to achieve great reductions in the stresses (over 50%) on both axial and radial circular welds on ferritic materials. Moreover, this process was tested with laser beam welding optics which are customary for welding and do not perform a scanning function. In this respect, the heat treatment in two work steps showed even greater reductions in the stresses in comparison with the application of laser beam scanner optics for quasi-simultaneous heat treatment on both sides of the weld. KW - Elektronenstrahlschweißen KW - Laserstrahlschweißen KW - Simulation und Berechnung KW - Spannungen KW - Wärmebehandlung KW - Electron beam welding KW - Laser welding KW - Simulation and calculation KW - Stresses KW - Heat treatment PY - 2012 SN - 0036-7184 VL - 64 IS - 7 SP - 406 EP - 411 PB - Verl. für Schweißen u. Verwandte Verfahren, DVS-Verl. CY - Düsseldorf AN - OPUS4-26339 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Malow, Marcus A1 - Clemens, J. T1 - Impact of Particle Size on the Oxidising Potential of Solids T2 - IGUS EOS Meeting CY - Berlin, Germany DA - 2012-05-07 PY - 2012 AN - OPUS4-26370 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Malow, Marcus A1 - Romahn, Tim-Michael A1 - Michael-Schulz, Heike T1 - Test results with different types of cellulose as reference material for the UN-Test O.1 T2 - IGUS EOS Meeting CY - Berlin, Germany DA - 2012-05-07 PY - 2012 AN - OPUS4-26371 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Malow, Marcus A1 - Michael-Schulz, Heike T1 - New validation results on the UN-Test N.5 T2 - IGUS EOS Meeting CY - Berlin, Germany DA - 2012-05-07 PY - 2012 AN - OPUS4-26372 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Resch-Genger, Ute A1 - Hennig, Andreas A1 - Würth, Christian A1 - Hatami, Soheil A1 - Hoffmann, Angelika A1 - Jäger, Christian A1 - Borcherding, H. A1 - Schedler, U. A1 - Huber, A. T1 - Characterization of the application-relevant properties of fluorescent particles using simple spectroscopic procedures T2 - Characterization and Bioanalytic Applications of Luminescent (Nano)Probes Chebana – UpCore Joint Seminar CY - Regensburg, Germany DA - 2012-08-30 PY - 2012 AN - OPUS4-26374 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Resch-Genger, Ute A1 - Behnke, Thomas A1 - Würth, Christian A1 - Hennig, Andreas A1 - Pauli, Jutta A1 - Hoffmann, Katrin A1 - Hatami, Soheil A1 - Grabolle, Markus A1 - Spieles, Monika A1 - Hoffmann, Angelika T1 - Functional Dye Systems for Applications in the Life Sciences and for Biosensing T2 - Heiligenstädter Kolloquium CY - Heilbad Heiligenstadt, Germany DA - 2012-09-24 PY - 2012 AN - OPUS4-26375 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Deresch, Andreas A1 - Gollwitzer, Christian A1 - Bellon, Carsten A1 - Jaenisch, Gerd-Rüdiger A1 - Baron, H.-U. A1 - Ewert, Uwe T1 - Reliability Investigations of Radiografic Testing Using aRTist as a Simulation Tool T2 - 18th WCNDT - World conference on nondestructive testing (2012) CY - Durban, South Africa DA - 2012-04-16 PY - 2012 AN - OPUS4-26376 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Kardjilov, N. A1 - Kupsch, Andreas A1 - Hentschel, Manfred P. A1 - Lange, Axel A1 - Manke, I. A1 - Hilger, A. A1 - Strobl, M. A1 - Penumadu, D. A1 - Banhart, J. T1 - Recent developments at the CONRAD instrument at the Helmholtz Centre Berlin T2 - 7th International Topical Meeting on Neutron Radiography (ITMNR-7) CY - Kingston (Ontario), Canada DA - 2012-06-16 PY - 2012 AN - OPUS4-26377 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Krankenhagen, Rainer A1 - Maierhofer, Christiane ED - Cardone, G. T1 - Determination of the spatial energy distribution generated by means of a flash lamp T2 - QIRT 11 - 11th International conference on Quantitative InfraRed Thermography CY - Naples, Italy DA - 2012-06-11 KW - Thermography KW - Flash lamp KW - Heat pulse KW - Calorimetric sensor KW - Energy meter KW - Energy distribution PY - 2012 SP - 1 EP - 10(?) AN - OPUS4-26378 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Yin, Huajie A1 - Schönhals, Andreas T1 - Calorimetric glass transition of ultrathin poly(bisphenol A carbonate) films N2 - Specific heat spectroscopy in the frequency range from 1 Hz to 10³ Hz with a sensitivity of pJ K-1 was employed to study the glass transition behavior of ultrathin poly(bisphenol A carbonate) (PBAC) films with thicknesses ranging from 192 nm down to 10 nm. The amplitude and the phase angle of the complex differential voltage as a measure of the complex heat capacity were obtained as a function of temperature at a given frequency simultaneously. Both spectra are used to determine the dynamic glass transition temperature as a function of both the frequency and the film thickness. As the main result no thickness dependence of the dynamic glass transition temperature was observed down to a film thickness of 10 nm within the experimental uncertainty of ±3 K. The obtained data were compared with literature results in detail. PY - 2012 U6 - https://doi.org/10.1039/c2sm26174j SN - 1744-683X VL - 8 IS - 35 SP - 9132 EP - 9139 PB - RSC Publ. CY - Cambridge AN - OPUS4-26379 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Hahn, Oliver T1 - Tuschen und Tinten - Analyse schwarzer Schreib- und Zeichenmaterialien T2 - Wiener Archäographisches Forum CY - Vienna, Austria DA - 2012-06-14 PY - 2012 AN - OPUS4-26390 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Krug, Sonja A1 - Hahn, Oliver T1 - Reference Samples for XRF Investigation of Museum Objects T2 - Indoor Air Quality 2012 CY - London, England DA - 2012-06-17 PY - 2012 AN - OPUS4-26391 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Krug, Sonja T1 - Digital Image Analysis T2 - Beyond Galileo´s O CY - Berlin, Germany DA - 2012-03-19 PY - 2012 AN - OPUS4-26392 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Rabe, Torsten T1 - Keramik in der Mikrosystemtechnik T2 - Microsystems Summer School CY - Berlin, Germany DA - 2012-08-27 PY - 2012 AN - OPUS4-26393 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - GEN ED - Barner-Kowollik, C. ED - Gründling, T. ED - Falkenhagen, Jana ED - Weidner, Steffen T1 - Mass spectrometry in polymer chemistry KW - Mass spectrometry KW - Polymers PY - 2012 SN - 978-3-527-32924-3 SP - 1 EP - 483 PB - Wiley-VCH Verlag GmbH & Co. KGaA CY - Weinheim AN - OPUS4-26394 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - GEN A1 - Falkenhagen, Jana A1 - Weidner, Steffen ED - Barner-Kowollik, C. ED - Gründling, T. ED - Falkenhagen, J. ED - Weidner, S. T1 - Hyphenated techniques KW - MALDI KW - Chromatography KW - Coupling techniques PY - 2012 SN - 978-3-527-32924-3 SP - 209 EP - 235 PB - Wiley-VCH Verlag GmbH & Co. KGaA AN - OPUS4-26395 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - GEN A1 - Mahoney, C.M. A1 - Weidner, Steffen ED - Barner-Kowollik, C. ED - Gründling, T. ED - Falkenhagen, J. ED - Weidner, S. T1 - Surface analysis and imaging techniques KW - Surface analysis KW - Imaging techniques PY - 2012 SN - 978-3-527-32924-3 SP - 149 EP - 207 PB - Wiley-VCH Verlag GmbH & Co. KGaA AN - OPUS4-26396 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Ungureanu, F. A1 - Manea, A.S. A1 - Frunza, L. A1 - Frunza, S. A1 - Ganea, C.P. A1 - Cotorobai, F. A1 - Diamandescu, L. A1 - Schönhals, Andreas T1 - Pentylcyanobiphenyl as test molecule for the acid sites of powdered titanium(IV) oxides: sensitivity of core levels to the local structure N2 - Pentylcyanobiphenyl was used successfully as a test molecule to show the acid sites upon some commercial nanoscaled titanium dioxide materials. The surface interactions were investigated in detail using methods sensitive to the surface or to the bulk material, e.g., X-ray photoelectron spectroscopy (XPS), infrared spectroscopy, and thermal analysis. Different oxidation states of surface Ti ions were revealed. Several species were found: the majority were bonded through the nitrogen lone pair of the cyano group, but bonding to the surface OH groups by benzene π electrons might also appear. The N 1s lines of adsorbed 5CB were able to distinguish between Lewis acid and relatively weak Brønsted acid sites. KW - Infrared spectra KW - Pentylcyanobiphenyl KW - Size dependence KW - Titanium dioxide KW - XPS PY - 2012 U6 - https://doi.org/10.1080/15421406.2012.697416 SN - 1542-1406 SN - 0026-8941 VL - 562 IS - 1 SP - 200 EP - 217 PB - Taylor & Francis CY - Philadelphia, PA, USA AN - OPUS4-26397 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Mieller, Björn A1 - Rabe, Torsten T1 - Tailoring the surface properties of glass-ceramic-composite substrates by advanced pressure-assisted sintering T2 - Junior Euromat 2012 CY - Lausanne, Switzerland DA - 2012-07-23 PY - 2012 N1 - Geburtsname von Mieller, Björn: Brandt, B. - Birth name of Mieller, Björn: Brandt, B. AN - OPUS4-26398 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Schmidt, Wolfram A1 - Gluth, Gregor T1 - Importance of Cement Proficiency Testing T2 - SPIN Meeting and Cement and Concrete Workshop CY - Dar Es Salaam, Tanzania DA - 2012-07-01 PY - 2012 AN - OPUS4-26399 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Niederleithinger, Ernst T1 - Improvement and extension of the parallel seismic method for foundation depth measurement KW - Parallel seismic KW - Length KW - Piles KW - Interpretation KW - Foundations PY - 2012 U6 - https://doi.org/10.1016/j.sandf.2012.11.023 SN - 0038-0806 VL - 52 IS - 6 SP - 1093 EP - 1101 PB - Soc. CY - Tokyo AN - OPUS4-27908 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Quiroz Penaranda, Vanessa A1 - Gumenyuk, Andrey A1 - Rethmeier, Michael T1 - Comparison between CO2- and Nd: YAG-laser beam welding of high-strength CrMnNi steels for the automotive industry N2 - IIW-2326 Austenitic and austenitic-ferritic CrMnNi-stainless steels are suitable materials in the transport and automotive industry due to their high corrosion resistance and high strength that allows weight and cost savings. This study focuses on the laser weldability of a commercial lean duplex and an austenitic high manganese stainless steel. The impact of different laser sources, i.e. a 5 kW CO2- and a 4 kW Nd:YAG-laser, and of the main process parameters on the resulting weld quality will be investigated. One important aspect will concern the appearance of weld defects such as pores and hot cracks. The factors causing such internal imperfections will be analysed in order to find effective methods for preventing them. Weld microstructure and the associated corrosion and mechanical properties will be assessed with different techniques and adequate process parameters for high quality welds will be determined. The advantages and limitations of the applied welding processes will be evaluated for future applications. KW - Laser beam welding KW - Stainless steel KW - Austenitic KW - Duplex KW - Weld microstructure KW - Pores KW - Cracks KW - Corrosion KW - Tensile strength PY - 2012 SN - 0043-2288 SN - 1878-6669 VL - 56 IS - 11/12 SP - 129 EP - 142 PB - Springer CY - Oxford AN - OPUS4-27911 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Löhnert, Andrea A1 - Rabe, Frederik A1 - Knaust, Christian A1 - Krause, U. T1 - Numerical and experimental investigation of fire smoke toxicity T2 - International congress ' Fire computer modeling' CY - Cantabria, Spain DA - 2012-10-18 PY - 2012 SN - 978-84-86116-69-9 SP - 171 EP - 188 AN - OPUS4-27893 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Knaust, Christian A1 - Rogge, Andreas T1 - CFD modeling of a tunnel fire by thermal coupling of fluid flow and structure T2 - International congress ' Fire computer modeling' CY - Cantabria, Spain DA - 2012-10-18 PY - 2012 SN - 978-84-86116-69-9 SP - 201 EP - 213 AN - OPUS4-27900 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Ruhl, Aki Sebastian A1 - Göbel, Artur A1 - Kranzmann, Axel T1 - Corrosion behavior of various steels for compression, transport and injection for carbon capture and storage N2 - Steels used within the process chain of carbon capture and storage (CCS) are exposed to conditions that are currently not fully tested. In the present work a number of steels were selected as possible construction materials: Alloyed steels for application in the compression and injection sections and low alloyed carbon steels for use as pipelines. Exposure tests were conducted over 600 hours at ambient pressure in a continuous flow of a simulated gas stream consisting of carbon dioxide with low contents of the relevant flue gas components nitrogen dioxide, sulfur dioxide, carbon monoxide, oxygen and water. Temperatures were adjusted to 5, 60 and 170 centigrade. KW - CCS KW - Material selection KW - Gas corrosion KW - Dew point corrosion KW - Compression KW - Pipeline KW - Injection PY - 2012 U6 - https://doi.org/10.1016/j.egypro.2012.06.074 SN - 1876-6102 VL - 23 SP - 216 EP - 225 PB - Elsevier CY - Amsterdam AN - OPUS4-27913 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Nolze, Gert A1 - Winkelmann, Aimo T1 - Dynamical simulation of electron backscatter diffraction (EBSD) patterns of imperfect crystals KW - EBSD KW - Rasterelektronenmikroskopie KW - Kristall KW - Rückstreukoeffizient KW - Beugungsmuster-Simulation KW - Realstruktur PY - 2012 U6 - https://doi.org/10.1017/S1431927612008082 SN - 1431-9276 SN - 1435-8115 VL - 18 IS - Suppl. S2 SP - 1246 EP - 1247 PB - Cambridge University Press CY - New York, NY AN - OPUS4-27920 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - RPRT A1 - Block, S. A1 - Boß, K.-H. A1 - Frobese, D.-H. A1 - Pape, H. A1 - Gösslinghoff, L. A1 - Grossepieper, T. A1 - Kasper, R. A1 - Kirchner, W. A1 - Kollmann, P. A1 - Kröger, P. A1 - Ringlstetter, P. A1 - Kuska, T. A1 - Mattejat, K. A1 - Niehüser, H. A1 - Pfeiffer, F. A1 - Pötzsch, Klaus-Michael A1 - Jochems, Frank A1 - Schäfer, H. A1 - Vogt, W. A1 - Zankl, C. A1 - Ludzay, J. T1 - Empfehlungen zur Vermeidung von Überdrücken an Tankfahrzeugen bei Untenbefüllung KW - Untenbefüllung KW - Tankfahrzeuge KW - Überdruck KW - Mineralöl KW - Sicherheitsventile PY - 2012 VL - 727 IS - 3 SP - 1-4, Anl. 1-3 AN - OPUS4-27921 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Bienert, Ralf A1 - Emmerling, Franziska A1 - Rolf, Simone T1 - Characterization of Nanoparticles T2 - Fachtagung Nano-Additive CY - Berlin, Germany DA - 2012-11-19 PY - 2012 AN - OPUS4-27883 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Ecker, Melanie A1 - Pretsch, Thorsten T1 - Durability of QR code carriers based on shape memory polymer N2 - The surface of a shape memory poly(ester urethane) (PEU) was either black- or blue-colored to obtain switchable quick response (QR) codes after laser engraving and thermomechanical functionalization (programming). The investigation of dye and functional stability against UVA and hydrolytic aging (at 23 and 60 °C) gave that contrast decline due to dye decolorization (in case of UVA aging) or distinct dye diffusion (in case of hydrolytic aging) finally inhibited the QR code readability. By contrast, PEU as marked base material could be adequately fixed and recovered even when the Michelson contrast in the QR code region was falling in course of aging below a crucial value of 0.1, whereupon the QR code was no longer readable. Hence, we concluded that under the given experimental conditions the decisive parameter for tag applicability was the surface contrast. T2 - SMASIS2012 - ASME 2012 Conference on smart materials, adaptive structures and intelligent systems CY - Stone Mountain, Georgia, USA DA - 2012-09-19 KW - Shape memory polymer KW - Durability KW - QR code KW - Poly(ester urethane) KW - Product and brand protection applications KW - Counterfeit-proof labels KW - Tags KW - QR code carriers KW - Switchable information carriers KW - Functionalization KW - Surface-specific dyeing PY - 2012 IS - SMASIS2012-8038 SP - 1 EP - 8 PB - ASME AN - OPUS4-27884 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Mirtschin, Nikolaus A1 - Pretsch, Thorsten T1 - Miniturization of QR code carriers based on shape memory polymer N2 - Here we present a suitable tag prototype with phasesegregated poly(ester urethane) (PEU) as base material for effectively switching a quick response (QR) code in its surface from non-readable to readable. In comparison with recently introduced tags (different geometry) we minimized the thickness from plaque (2 mm) to foil size (0.5 mm) and reduced the lateral QR code length from 15 to 5 mm. Subsequent to surface-dyeing by means of guest diffusion, the QR code was laser-engraved. The implementation of thermo-mechanical functionalization via tensile deformation and cooling resulted in the formation of stable shapes, which exceeded the barrier of QR code readability at an elongation of 20%. Once functionalized, tags were switched on demand by heating. As such the recovery of the PEU was accomplished and the QR code could again be read out. QR code carriers based on shape memory polymer can be used in product and brand protection applications. T2 - SMASIS2012 - ASME 2012 Conference on smart materials, adaptive structures and intelligent systems CY - Stone Mountain, Georgia, USA DA - 2012-09-19 KW - Shape memory polymer KW - QR code KW - Poly(ester urethane) KW - Product and brand protection applications KW - Counterfeit-proof labels KW - Tags KW - Switchable information carriers KW - Functionalization KW - Miniaturization KW - Surface-specific dyeing KW - Victoria Blue B PY - 2012 N1 - Geburtsname von Mirtschin, Nikolaus: Fritzsche, N. - Birth name of Mirtschin, Nikolaus: Fritzsche, N. IS - SMASIS2012-8036 SP - 1 EP - 8 PB - ASME AN - OPUS4-27886 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Ecker, Melanie A1 - Pretsch, Thorsten T1 - Freely configurable functionalization tool for switchable information carriers N2 - The selective compression of quick response (QR) and Data Matrix code carriers based on shape memory polymer (SMP) with a freely configurable steel ball type indenter and adjacent thermo-mechanical shape fixing gave notched, room temperature (23 °C) stable, temporary shapes with non-decipherable codes. The microscopic investigation of cryomicrotome sections unveiled indentation-related shape fixities of about 90%. Independent of the selected two-dimensional code, the triggering of the SM effect resulted in sufficient shape recoveries to restore the code readability so that a maximum number of characters including 122 for a QR code (version 7) and 112 in case of a Data Matrix code (version 12) could be read with a scanning and decoding device. Due to the large number of difficult to copy shapes with on demand releasable information, SMPs may serve as viable information carriers for product and brand protection applications. T2 - 3rd WMRIF Workshop for young materials scientists CY - Pathumthani, Thailand DA - 2012-08-28 KW - Shape memory polymer KW - QR code KW - Data matrix code KW - Poly(ester urethane) KW - Product and brand protection applications KW - Tags KW - Switchable information carriers KW - Freely configurable functionalization KW - Selective deformation KW - Steel ball type indenter KW - Spherical indentation KW - Cryomicrotome sections KW - Surface-specific dyeing PY - 2012 SP - 1 EP - 10(?) AN - OPUS4-27887 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Staude, Andreas A1 - Riesemeier, Heinrich A1 - Reiche, I. A1 - Zizak, I. A1 - Fratzl, P. T1 - Evidencing the hierachical structure of archaeological ivory at micro and nanoscale and its evolution over time by means of combined µ-SAXS/WAXS, µPIXE and µ-CT T2 - Gordon Research Conference: Scientific Methods in Cultural Heritage CY - Mount Snow Resort, West Dover, VT, USA DA - 2012-07-29 PY - 2012 AN - OPUS4-27877 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Pfennig, Anja A1 - Linke, Barbara A1 - Schulz, Sabrina A1 - Kranzmann, Axel T1 - Supercritical CO2-corrosion in pipe steels during carbon capture and storage CCS T2 - 4th International Conference on Sustainable Energy and Environment CY - Bangkok, Thailand DA - 2012-02-23 PY - 2012 AN - OPUS4-27935 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Pfennig, Anja A1 - Schulz, Sabrina A1 - Kranzmann, Axel T1 - Influence of pressure, CO2 and cromium-content of injection pipe steels on the reliability of a saline aquifer water CCS-site in the Northern German Basin T2 - Green House Gase Emission Reduction Technologies Conference (GHGT11) CY - Kyoto, Japan DA - 2012-11-18 PY - 2012 AN - OPUS4-27936 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Pfennig, Anja A1 - Wiegand, Reiner A1 - Wolf, Marcus A1 - Kranzmann, Axel A1 - Bork, Claus-Peter T1 - Corrosion fatigue behavior and S-N-curve of AiSi 420 exposed to CCS-environment obtained from laboratory in-situ-experiments T2 - Green House Gase Emission Reduction Technologies Conference (GHGT11) CY - Kyoto, Japan DA - 2012-11-18 PY - 2012 AN - OPUS4-27937 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Pfennig, Anja A1 - Zastrow, Philip A1 - Kranzmann, Axel T1 - Supercritical CO2-corrosion in heat treated pipe steels during carbon capture and storage CCS T2 - Sustainable Future Energy 2012 and 10th SEE Forum CY - Brunei Darussalam DA - 2012-11-21 PY - 2012 AN - OPUS4-27938 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Pfennig, Anja A1 - Zastrow, Philip A1 - Wiegand, Reiner A1 - Wolf, Marcus A1 - Kranzmann, Axel T1 - Determining Corrosion behaviour of steels from experiments in CCS-conditions T2 - 9th International Congress "Machines, Technologies, Materials" CY - Varna, Bulgaria DA - 2012-09-19 PY - 2012 AN - OPUS4-27939 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Pfennig, Anja A1 - Zastrow, Philip A1 - Kranzmann, Axel T1 - Influence of heat treatment on the corrosion behaviour of stainless steels exposed to CO2-saturated saline aquifer water T2 - EUROCORR 2012 CY - Istanbul, Turkey DA - 2012-09-09 PY - 2012 AN - OPUS4-27940 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Pfennig, Anja A1 - Schulz, Sabrina A1 - Werlitz, T. A1 - Bülow, E. A1 - Wetzlich, S. A1 - Tietböhl, J. A1 - Frieslich, C. A1 - Kranzmann, Axel T1 - Predicting the life time of steels in CCS environment from long term local corrosion experiments T2 - 20th International Confernece on Modelling, Monitoring and Management of Air Pollution (Air Pollution XX) CY - A Coruna, Spain DA - 2012-05-16 PY - 2012 AN - OPUS4-27941 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Wirth, Cynthia A1 - Zocca, Andrea A1 - Günster, Jens T1 - Resorbable ceramic scaffolds generated by 3D printing T2 - BIT's 1st Annual World Congress of Advanced Materials 2012 CY - Beijing, China DA - 2012-06-06 PY - 2012 N1 - Geburtsname von Wirth, Cynthia: Gomes, C. M. - Birth name of Wirth, Cynthia: Gomes, C. M. AN - OPUS4-27843 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Monreal, Nils A1 - Hofmann-Böllinghaus, Anja T1 - Numerische und experimentelle Untersuchung von Brandrauch und -gasen T2 - Doktorandentag am Lehrstuhl AT/AS CY - Magdeburg, Germany DA - 14.12.2012 PY - 2012 AN - OPUS4-27822 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Nolze, Gert A1 - Saliwan Neumann, Romeo A1 - Buchheim, Michaela T1 - Microstructure investigations of iron meteorites by EBSD and EDS analyses T2 - EMC 2012 - 15th European Microscopy Congress CY - Manchester, UK DA - 2012-09-16 KW - Orientation relationship KW - Weathering KW - Hibbingite PY - 2012 UR - http://www.emc2012.org.uk//documents/Abstracts/Abstracts/EMC2012_0090.pdf SP - 1 EP - 2(?) AN - OPUS4-27922 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Mishra, Kirti Bhushan A1 - Wehrstedt, Klaus-Dieter T1 - CFD modeling of spill characteristics of flammable liquids T2 - 22nd Journées d´Etudes of the Belgian section of the combustion institute CY - Heverlee, Belgium DA - 2012-09-11 KW - Flammable liquids KW - Spill characteristics KW - CFD modeling KW - Overflow Reynolds number KW - Jet A KW - DTBP KW - Vapor cloud PY - 2012 SP - 18 EP - 19 AN - OPUS4-27924 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Linke, S. A1 - Kühn, Julius A1 - Nörthemann, K. A1 - Unger, Wolfgang A1 - Moritz, W. T1 - Sensor high throughput screening using photocurrent measurements in silicon N2 - A new high throughput screening method to characterise alloys used as gate metal of Metal/solid Electrolyte/Insulator/Semiconductor (MEIS) gas-sensors was developed. Samples with continuous gradients in alloy concentration for the system Pd1-x-yNiyCoy were analysed regarding H2 sensitivity. First results showed reduced poisoning effects of H2S for Ni concentrations between 4-11 at-% in Pd. T2 - Eurosensors XXVI CY - Kraków, Poland DA - 2012-09-09 KW - LAPS KW - Ternary alloy KW - MEIS sensor KW - H2 sensor KW - High throughput screening PY - 2012 U6 - https://doi.org/10.1016/j.proeng.2012.09.366 SN - 1877-7058 VL - 47 SP - 1195 EP - 1198 PB - Elsevier CY - Amsterdam [u.a.] AN - OPUS4-27926 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Weihnacht, V. A1 - Makowski, S. A1 - Brückner, A. A1 - Theiler, Geraldine A1 - Gradt, Thomas T1 - Tribologie und Anwendung trocken laufender ta-C-Schichten KW - Tribologie KW - Verschleißschutzschichten KW - ta-C KW - DLC KW - Reibung KW - Verschleiß KW - Trockenreibung KW - Vakuumtribologie KW - Friction KW - Wear KW - Dry-running condition KW - Vacuum tribology PY - 2012 SN - 0724-3472 VL - 59 IS - 6 SP - 41 EP - 44 PB - Expert Verlag CY - Renningen AN - OPUS4-28004 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Krasnorutskyi, S. A1 - Keil, D. A1 - Schmigalla, S. A1 - Zinke, M. A1 - Heyn, Andreas A1 - Pries, H. T1 - Metallurgical investigations on electron beam welded duplex stainless steels N2 - Thick-walled components made of duplex stainless steels are used in the semi-finished products as well as in machinery, apparatus and plant construction. Electron beam welding (EBW) of these components may be recommended for economic and quality reasons. To guarantee the necessary mechanical and technological properties and the corrosion resistance, the duplex stainless steels are welded with filler material and afterwards undergo a post-weld heat treatment. The present work shows interim results of investigations concerning the development of an electron beam multi-process technology for welding these steels without filler material and post-weld heat treatment. The studies were performed on standard duplex stainless steel of type 1.4462 (X2CrNiMoN22-5-3). When welding duplex stainless steels, the cooling rate and the chemical composition have a crucial influence on the final result. Based on fundamental investigations relating to the influence of the process parameters on the effusion of nitrogen and the cooling rates, the resulting austenite formation, mechanical properties and the corrosion resistance were taken into account to develop appropriate electron beam multi-process techniques. The ferrite content was measured metallographically and by magnetic induction, the impact toughness was measured at –40 °C and the determination of critical pitting temperatures was performed using electrochemical noise measurements. KW - Nichtrostender Stahl KW - Duplex KW - Schweißen KW - Lochkorrosion KW - Mikrostruktur KW - Stickstoff KW - Ferrit KW - Schweißwerkstoff KW - Duplex stainless steels KW - EB-welding KW - Pitting corrosion KW - Microstructure KW - Fracture toughness KW - Nitrogen KW - Ferrite KW - Weld metal KW - Welding without filler PY - 2012 U6 - https://doi.org/10.1007/BF03321393 SN - 0043-2288 SN - 1878-6669 VL - 56 IS - 11/12 SP - 34 EP - 40 PB - Springer CY - Oxford AN - OPUS4-28005 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Pfennig, Anja A1 - Schulz, S. A1 - Werlitz, T. A1 - Bülow, E. A1 - Wetzlich, S. A1 - Tietböhl, J. A1 - Frieslich, C. A1 - Kranzmann, Axel T1 - Influence of heat treatment on the corrosion of steels in CCS environment T2 - TMS 2012 - 141st Annual Meeting & Exhibition CY - Orlando, FL, USA DA - 2012-03-11 KW - CCS KW - Carbon capture and storage KW - Corrosion KW - Steel KW - Pipeline KW - Carbon KW - Heat treatment KW - CO2-storage PY - 2012 SN - 978-1-11829-607-3 VL - 1 IS - Supplemental Proceedings SP - 103 EP - 110 PB - John Wiley & Sons CY - Hoboken, NJ, USA AN - OPUS4-28007 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Pfennig, Anja A1 - Schulz, Sabrina A1 - Kranzmann, Axel A1 - Werlitz, T. A1 - Bülow, E. A1 - Wetzlich, S. A1 - Frieslich, C. A1 - Tietböhl, J. T1 - Influence of heat treatment on the corrosion of steels in CCS Environment T2 - TMS 2012, 141st Annual Meeting and Exhibition CY - Orlando, FL, USA DA - 2012-03-11 PY - 2012 AN - OPUS4-27942 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Pelkner, Matthias A1 - Neubauer, Andreas A1 - Kreutzbruck, Marc T1 - Automatisierte Streuflussprüfung und Bewertung von Zylinderlagerringen unter Anwendung von GMR-Sensorarrays T2 - DACH-Tagung (DGZfP-Jahrestagung) CY - Graz, Austria DA - 2012-09-17 PY - 2012 AN - OPUS4-27943 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - GEN A1 - Trappe, Volker A1 - Günzel, Stephan A1 - Jaunich, Matthias ED - Yao, W. ED - Renard, J. ED - Himmel, N.A. T1 - Correlation between crack propagation rate and cure process of epoxy resins KW - Fracture toughness KW - Crack resistance KW - Fracture mechanics KW - Plastics KW - Crack propagation PY - 2012 SN - 978-1-60595-091-4 SP - 277 EP - 290 PB - DEStech Publications, Inc. CY - Lancaster, PA, USA AN - OPUS4-27947 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Pelkner, Matthias A1 - Neubauer, Andreas A1 - Reimund, Verena A1 - Erthner, Thomas A1 - Panke, Nicolai A1 - Kreutzbruck, Marc T1 - Automatisierte Streuflussprüfung und Bewertung von Zylilnderlagerringen unter Anwendung von GMR-Sensorarrays T2 - DACH-Jahrestagung 2012 CY - Graz, Austria DA - 2012-09-17 KW - Streufluss KW - GMR KW - Sensorarrays PY - 2012 SN - 978-3-940283-44-3 IS - DGZfP-BB 136 SP - Mo.2.A.2, 1 EP - 8 AN - OPUS4-27949 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Godehardt, M. A1 - Krebs, Holger A1 - Ohser, J. A1 - Staude, Andreas T1 - Analyse der Porengrößenverteilung in einer myCT-Aufnahme eines Sprengstoffes PY - 2012 SN - 0941-4584 VL - 34 IS - 1 SP - 3 EP - 4 PB - Deutscher Sprengverband CY - Siegen AN - OPUS4-27976 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CHAP A1 - Czichos, Horst A1 - Hennecke, Manfred A1 - Simon, Franz-Georg ED - Czichos, Horst ED - Hennecke, Manfred T1 - Werkstoffe KW - Werkstoffe KW - Metalle KW - Kunststoffe KW - Keramik KW - Ashby-Diagramme PY - 2012 SN - 978-3-642-22849-0 U6 - https://doi.org/10.1007/978-3-642-22850-6_4 IS - Kap. D SP - 589 EP - 698 PB - Springer-Vieweg CY - Berlin Heidelberg ET - 34. Aufl. AN - OPUS4-27980 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - THES A1 - Thöns, Sebastian T1 - Monitoring based condition assessment of offshore wind turbine support structures KW - Structural condition assessment KW - Monitoring KW - Offshore wind turbine KW - Measurement uncertainty KW - Cost benefit analysis KW - Structural integrity management PY - 2012 UR - http://e-collection.library.ethz.ch/eserv/eth:6828/eth-6828-01.pdf U6 - https://doi.org/10.3929/ethz-a-009753058 SN - 0257-6821 IS - 345 SP - 1 EP - 149 PB - vdf Hochschulverlag AG, Zürich CY - Basel AN - OPUS4-28280 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Mix, Renate A1 - Hielscher, Stefan A1 - Beck, Uwe A1 - Friedrich, Jörg Florian T1 - Plasma meets chemistry: Combined methods for tailored interface design in metal-polymer composites by selective chemical reactions on plasma modified surfaces N2 - The applicability of polymer-metal composites is mainly determined by the durability of the adhesive strength between both components. Aluminium (Al) deposited on polypropylene (PP) exemplifies different options of interface design. By deposition of plasma polymers on PP the effect of the type of the functionality was investigated. Spacer insertion was accomplished to position the functional group away from the topmost surface. A further kind of interface design involved a partial condensation of functional groups. Hydroxyl and carboxyl groups were most effective to improve adhesion in Al-PP systems. Approximately 7-10 carboxyl or 25-27 hydroxyl groups per 100 C atoms were necessary to increase the peel strength up to ~700 N/m. In this range, the failure of the composite propagated along the interface Al-tape (no peeling of the metal). Spacer molecules between surface and functional groups provoked the effect that the number of needed functional groups for maximum adhesion was strongly reduced. Linking of the functional groups resulted in non-peelable Al-PP laminates. Two adhesion tests were applied - the peel test and the centrifuge technology. For PP foils modified with chemically bonded and additionally linked silanol groups (no peeling) an adhesive strength of (2.5 ± 0.2) N/mm² was determined by centrifuge technology. XPS inspection of both fracture surfaces indicated a sub-surface failure in the polymer. T2 - HTPP-12 - 12th High-tech plasma processes conference CY - Bologna, Italy DA - 2012-06-24 KW - Adhesion PP-Al KW - Modified surfaces KW - Interface design PY - 2012 U6 - https://doi.org/10.1088/1742-6596/406/1/012004 SN - 1742-6588 SN - 1742-6596 VL - 406 SP - 012004-1 - 012004-11 PB - IOP Publ. CY - Bristol, UK AN - OPUS4-28658 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Schneider, S. A1 - Beck, T. A1 - Wittstock, B. A1 - Herbst, Tristan T1 - Sustainability assessment for the recycling of masonry T2 - SAM-6 - 6th International conference on society & materials CY - Leuven, Belgium DA - 2012-05-30 PY - 2012 SN - 1958-2897 SP - 1 EP - 7(?) AN - OPUS4-28644 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Taffe, Alexander T1 - Einsatz von zerstörungsfreien Prüfverfahren (ZfP) bei der Bestandsaufnahme von Bauwerken T2 - Brücken- und Ingenieurbautagung 2012 CY - München, Germany DA - 2012-04-25 KW - Zerstörungsfreie Prüfung im Bauwesen KW - ZfPBau KW - Bestandsaufnahme KW - Brückenprüfung KW - Bauwerkscanner KW - Ultraschall KW - Wirbelstrom KW - Radar KW - Statik KW - Statische Nachrechnung PY - 2012 SP - 51 EP - 55 AN - OPUS4-28594 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Pfennig, Anja A1 - Wolf, Marcus A1 - Bork, Claus-Peter T1 - Corrosion fatigue of X46Cr13 at 60 °C exposed to CO2-saturated geothermal brine N2 - In geothermal power plants the materials used in pumps are loaded cyclically and exposed constantly to the highly corrosive hot thermal water. The lifetime reduction of AISI 420C (X46Cr13, 1.4034) is demonstrated in in-situ-laboratory experiments (T=60 °C, geothermal brine: Stuttgart Aquifer flow rate: 9 l/h, CO2). S-N plots, micrographic-, phase-, fractographic- and surface analysis were applied to obtain sustainable information on the corrosion fatigue behavior. Maximum number of cycles (here 12.5 x 106 cycles to failure) is reached at σa =173 MPa. No typical fatigue strength exists and passive corrosion fatigue may be identified as failure cause. T2 - EUROCORR 2012 - The European corrosion congress CY - Istanbul, Turkey DA - 2012-09-09 KW - Steel KW - Corrosion fatigue KW - Corrosion chamber KW - CCS KW - CO2-storage PY - 2012 SP - 1 EP - 11 AN - OPUS4-28586 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Taffe, Alexander A1 - Spies, M. A1 - Recknagel, J. T1 - Schulung zur zuverlässigen Ortung von Bewehrung in Stahlbetonbauteilen von Kraftwerken T2 - Fachtagung Bauwerksdiagnose 2012 - Praktische Anwendungen zerstörungsfreier Prüfungen und Zukunftsaufgaben CY - Berlin, Deutschland DA - 2012-02-23 KW - Zerstörungsfreie Prüfung im Bauwesen KW - ZfPBau KW - Ausbildung KW - Bewehrungsortung KW - Bauwerksdiagnose KW - Kernkraftwerk KW - Bauwerksprüfung PY - 2012 SN - 978-3-940283-40-5 IS - DGZfP-BB 134 (Vortrag 04) SP - 1 EP - 7 CY - Berlin AN - OPUS4-28590 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Nöller, Renate A1 - Helman-Wazny, A. T1 - Manuscripts from the Silk Roads: Records of Paper and Ink T2 - East Asian and Archaeology Research Seminars CY - London, England DA - 2012-02-10 PY - 2012 AN - OPUS4-28787 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Kim, K.J. A1 - Unger, Wolfgang A1 - Kim, J.W. A1 - Moon, D.W. A1 - Gross, Thomas A1 - Hodoroaba, Vasile-Dan A1 - Schmidt, Dieter A1 - Wirth, Thomas A1 - Jordaan, W. A1 - van Staden, M. A1 - Prins, S. A1 - Zhang, L. A1 - Fujimoto, T. A1 - Song, X.P. A1 - Wang, H. T1 - Inter-laboratory comparison: quantitative surface analysis of thin Fe-Ni alloy films N2 - An international interlaboratory comparison of the measurement capabilities of four National Metrology Institutes (NMIs) and one Designated Institute (DI) in the determination of the chemical composition of thin Fe-Ni alloy films was conducted via a key comparison (K-67) of the Surface Analysis Working Group of the Consultative Committee for Amount of Substance. This comparison was made using XPS (four laboratories) and AES (one laboratory) measurements. The uncertainty budget of the measured chemical composition of a thin alloy film was dominated by the uncertainty of the certified composition of a reference specimen which had been determined by inductively coupled plasma mass spectrometry using the isotope dilution method. Pilot study P-98 showed that the quantification using relative sensitivity factors (RSFs) of Fe and Ni derived from an alloy reference sample results in much more accurate result in comparison to an approach using RSFs derived from pure Fe and Ni films. The individual expanded uncertainties of the participants in the K-67 comparison were found to be between 2.88 and 3.40 atomic %. The uncertainty of the key comparison reference value (KCRV) calculated from individual standard deviations and a coverage factor (k) of 2 was 1.23 atomic %. KW - Quantification KW - Fe-Ni alloy KW - Uncertainty KW - Key comparison KW - Traceability PY - 2012 U6 - https://doi.org/10.1002/sia.3795 SN - 0142-2421 SN - 1096-9918 VL - 44 IS - 2 SP - 192 EP - 199 PB - Wiley CY - Chichester AN - OPUS4-24505 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Ramge, Peter A1 - Kühne, Hans-Carsten A1 - Meng, Birgit ED - Grantham, M. ED - Mechtcherine, V. ED - Schneck, U. T1 - Influence of selected aspects of the mixture proportioning on the performance of repair mortars T2 - Concrete solutions 2011 - 4th International conference on concrete repair CY - Dresden, Germany DA - 2011-09-26 KW - Repair mortar KW - Concrete rehabilitation KW - Repair systems KW - Polymer cement concrete (PCC) KW - Sprayed polymer cement concrete (SPCC) PY - 2012 SN - 978-0-415-61-622-5 SP - 451 EP - 459 PB - Taylor & Francis CY - London AN - OPUS4-24567 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Hanelt, Sven A1 - Friedrich, Jörg Florian A1 - Orts Gil, Guillermo A1 - Meyer-Plath, Asmus T1 - Study of Lewis acid catalyzed chemical bromination and bromoalkylation of multi-walled carbon nanotubes N2 - Chemical functionalization of carbon nanotubes (CNT) with nucleophiles requires introduction of electrophilic reactive sites on the CNTs. This can, for instance, be accomplished by the chemical bromination procedure with elemental bromine and a set of Lewis acids (BBr3, BF3 × Et2O, AlBr3, FeBr3, ZnBr2, TiBr4, SiBr4, SnBr4, VBr3) or a radical starter like dibenzoylperoxide (DBPO) in appropriate solvents at varied temperature. The present approach to electrophilic sites relies on the well-known electrophilic aromatic substitution or addition of bromine with aromatic structural units. In addition to the use of bromine, the introduction of haloalkyl groups was also investigated here using bis-electrophiles or haloalcohols and Brønsted acids. The advantages and drawbacks of the studied reaction conditions, the obtained degree of bromination as analyzed by X-ray photoelectron spectroscopy (XPS) and the amount of introduced bromine that can be substituted by a nucleophile are presented and discussed. KW - Carbon nanotubes KW - Bromierung KW - Lewis Säure KW - Bromalkylierung KW - CNT PY - 2012 U6 - https://doi.org/10.1016/j.carbon.2011.11.009 SN - 0008-6223 SN - 1873-3891 VL - 50 IS - 3 SP - 1373 EP - 1385 PB - Pergamon Press CY - New York, NY AN - OPUS4-25207 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Bender, S. A1 - Goellner, J. A1 - Heyn, Andreas A1 - Schmigalla, S. T1 - A new theory for the negative difference effect in magnesium corrosion N2 - An unusual feature known as the negative difference effect (NDE) can be observed in magnesium when recording corrosion current density–potential curves. More hydrogen is evolved at a more positive potential which does not occur in conventional metals. Several models have been proposed in the literature in order to explain the phenomenon of NDE. They succeed in explaining some effects, and fail to deal with others. A new model, which explains the NDE by two electron consuming processes, is presented in this paper. By potentiostatic investigations of magnesium in a chloride electrolyte, measurements of hydrogen evolution and chemical analysis of the electrolyte the new model was experimentally verified. KW - Magnesium KW - Negativer Differenzeffekt KW - Korrosion KW - Korrosionsmechanismus KW - Current density-potential-curve KW - Magnesium alloys KW - Magnesium corrosion KW - Negative difference effect KW - Polarization measurements PY - 2012 U6 - https://doi.org/10.1002/maco.201106225 SN - 0947-5117 SN - 1521-4176 VL - 63 IS - 8 SP - 707 EP - 712 PB - Wiley-VCH Verl. CY - Weinheim AN - OPUS4-25162 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Bäßler, Ralph A1 - Weltschev, Margit T1 - S44400 - A low cost and corrosion-resistant alternative to the austenite containing nickel for tank applications T2 - NACE International Corrosion Conference 2012 CY - Salt Lake City, UT, USA DA - 2012-03-11 PY - 2012 AN - OPUS4-25223 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Weißhaupt, Petra A1 - Pritzkow, Wolfgang A1 - Noll, Matthias T1 - Nitrogen sources of oligoporus placenta and trametes versicolor evaluated in a 2³ experimental plan N2 - Four full-factorial 2³ experimental plans were applied to evaluate the nitrogen (N) sources of Oligoporus placenta and Trametes versicolor and their interaction with the atmospheric N2-assimilating bacterium Beijerinckia acida. The effects of N from peptone, of sapwood and of N from gaseous N2 on fungal, bacterial and fungal–bacterial activity were investigated. The activities were determined by quantification of biomass, formation of CO2, consumption of O2 and laccase activity. The significance of each effect was tested according to t-test recommendation. The activity of both fungi was enhanced by peptone rather than sapwood or gaseous N2. Nevertheless, comparative studies under an N2-free gas mixture as well as under air revealed that the presence of N2 affected bacterial growth and bacterial–fungal cocultivations. Elemental analysis isotope ratio mass spectrometry (IRMS) of the bacterial and fungal biomass enabled estimation of N transfer and underlined gaseous N2 as requisite for fungal–bacterial interactions. Combining full-factorial experimental plans with an analytical set-up comprising gas chromatography, IRMS and enzymatic activity allowed synergistic effects to be revealed, fungal N sources to be traced, and symbiotic fungal–bacterial interactions to be investigated. KW - Basidiomycetes KW - Diazotroph KW - Full-factorial experimental plan KW - Fungal–bacterial interaction KW - Nitrogen KW - Wood decomposition PY - 2012 U6 - https://doi.org/10.1016/j.funbio.2011.10.002 SN - 1878-6146 SN - 1878-6162 VL - 116 IS - 1 SP - 81 EP - 89 PB - Elsevier Science CY - Amsterdam [u.a.] AN - OPUS4-25211 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Bonse, Jörn A1 - Höhm, S. A1 - Rohloff, M. A1 - Rosenfeld, A. A1 - Krüger, Jörg T1 - Femtosecond laser-induced periodic surface structures T2 - International High-Power Laser Ablation Conference (HPLA 2012) CY - Santa Fe, NM, USA DA - 2012-04-30 PY - 2012 AN - OPUS4-24442 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Jaunich, Matthias A1 - Stark, Wolfgang A1 - Wolff, Dietmar T1 - Low Temperature - For a seal this depends on the applied material T2 - Deutsche Kautschuk-Tagung 2012 CY - Nuremberg, Germany DA - 2012-07-02 PY - 2012 AN - OPUS4-24421 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Resch-Genger, Ute A1 - Hennig, Andreas A1 - Behnke, Thomas A1 - Würth, Christian A1 - Hoffmann, Katrin A1 - Borcherding, H. A1 - Hoffmann, Angelika A1 - Jäger, Christian A1 - Schedler, U. T1 - Simple Spectroscopic Procedures for the Charcterization of the Application-Relevant Properties of Fluorescent Particles T2 - ANALYTICA 2012 CY - Munich, Germany DA - 2012-04-17 PY - 2012 AN - OPUS4-24694 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Ferrero, Fabio A1 - Kluge, Martin A1 - Kreißig, Michael A1 - Hensel, Christina A1 - Schmidtchen, Ulrich A1 - Holtappels, Kai T1 - Preventing the explosion of acetylene cylinders involved in fire with help of numerical modeling N2 - The current paper describes a mathematical model, which was developed to simulate the heat transfer in acetylene cylinders during exposure to a fire. The cases of a direct engulfment of the cylinder in the flames and of exposure to a distant fire were considered. Furthermore, the model was also applied to the prediction of the heat transfer during the cooling with water of heated acetylene cylinders, in order to assess the effectiveness of this procedure as a measure to prevent the burst of the cylinder. To provide data for the definition and validation of the model a total of 13 bonfire tests with 8.9-, 10- and 50-dm³-cylinders were performed, where pressure and temperature measurements in the samples were performed. During 5 experiments the fire was extinguished before the expected cylinder burst and a cooling with water was applied. In the paper a short description of the experimental set-up and of the test results is given. Finally, a comparison with the model predictions is provided, showing reasonable agreement. KW - Acetylene cylinders KW - Fire KW - Explosion KW - Cooling KW - Numerical model PY - 2012 U6 - https://doi.org/10.1016/j.jlp.2011.10.006 SN - 0950-4230 SN - 1873-3352 N1 - Geburtsname von Kluge, Martin: Beckmann-Kluge, M. - Birth name of Kluge, Martin: Beckmann-Kluge, M. VL - 25 IS - 2 SP - 364 EP - 372 PB - Butterworth CY - Guildford, Surrey AN - OPUS4-25137 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Ferrero, Fabio A1 - Kluge, Martin A1 - Spoormaker, T. A1 - Schröder, Volkmar T1 - On the minimum ignition temperature for the explosive decomposition of tetrafluoroethylene on hot walls: Experiments and calculations N2 - The Minimum Ignition Temperature of Decomposition (MITD) of tetrafluoroethylene in a partially heated pipe was analyzed for different initial pressures (5, 10 and 15 bara). The pipe used had an internal length of 1 m, an internal diameter of 30 mm with a volume of about 0.7 dm³ and was vertically oriented. Pressure at the pipe top and temperature at four different locations along the pipe axis were measured. Tetrafluoroethylene was found to decompose at lower temperatures for increasing initial pressures, in agreement with previous tests with reactors with fully heated walls. A complete passive quenching in the non-heated part of the pipe was observed only for an initial pressure of 5 bara, while for higher initial pressures, the decomposition propagated completely along the test pipe. Moreover, the test results on the MITD were compared with data from previous experiments in fully heated 0.2 and 3 dm³ cylindrical reactors and showed a decrease of the MITD with the heated volume through heated surface ratio of the vessel. Furthermore, the prediction of the MITD of tetrafluoroethylene by simplified calculation methods was attempted, showing a good agreement with the experimental results. KW - Tetrafluoroethylene KW - Decomposition KW - Self-ignition PY - 2012 U6 - https://doi.org/10.1016/j.jlp.2011.11.005 SN - 0950-4230 SN - 1873-3352 N1 - Geburtsname von Kluge, Martin: Beckmann-Kluge, M. - Birth name of Kluge, Martin: Beckmann-Kluge, M. VL - 25 IS - 2 SP - 293 EP - 301 PB - Butterworth CY - Guildford, Surrey AN - OPUS4-25138 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Ortel, Erik A1 - Fischer, A. A1 - Chuenchom, L. A1 - Polte, Jörg A1 - Smarsly, B. A1 - Krähnert, R. A1 - Emmerling, Franziska T1 - Mesoporous metal oxide films with controlled pore size, wall thickness and pore hierarchy templated by PEO-b-PB-b-PEO triblock copolymers T2 - 24. Deutsche Zeolith- Tagung CY - Magdeburg, Germany DA - 2012-03-07 PY - 2012 AN - OPUS4-25122 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Wäsche, Rolf A1 - Woydt, Mathias A1 - Tato, W. T1 - Alumina and zirconia as tribomaterials - a review T2 - The Fourth International Conference on The Characterization and Control of Interfaces for High Quality Advanced Materials (ICCCI 2012) CY - Kurashiki, Japan DA - 2012-09-02 PY - 2012 AN - OPUS4-24612 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Stoppel, Markus A1 - Taffe, Alexander A1 - Wiggenhauser, Herbert A1 - Kurz, J.H. A1 - Boller, C. ED - Grantham, M. ED - Mechtcherine, V. ED - Schneck, U. T1 - Automated multi-sensor systems in civil engineering for condition assessment of concrete structures T2 - Concrete solutions 2011 - 4th International conference on concrete repair CY - Dresden, Germany DA - 2011-09-26 KW - Multi sensor KW - Data aquisition KW - Assessment of concrete structures KW - Scanner KW - NDT PY - 2012 SN - 978-0-415-61-622-5 SP - 397 EP - 403 PB - Taylor & Francis CY - London AN - OPUS4-24659 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Panne, Ulrich A1 - Weller, Michael G. A1 - Rurack, Knut T1 - Process Sensing and Chemical Sensor Development at BAM T2 - Sitzung des fms/ProcessNet-Gemeinschafts-Ausschusses „Sensoren und Sensorsysteme“ CY - Frankfurt am Main, Germany DA - 2012-01-26 PY - 2012 AN - OPUS4-24645 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Poppenberg, J. A1 - Richter, S. A1 - Darlatt, Erik A1 - Traulsen, C.H.-H. A1 - Min, Hyegeun A1 - Unger, Wolfgang A1 - Schalley, C.A. T1 - Successive coordination of palladium(II)-ions and terpyridine-ligands to a pyridyl-terminated self-assembled monolayer on gold N2 - The deposition of palladium on a novel, reversibly protonatable, pyridyl-terminated self-assembled monolayer on gold substrates has been studied by X-ray photoelectron spectroscopy (XPS), near-edge X-ray absorption fine structure spectroscopy (NEXAFS spectroscopy) and time of flight-secondary ion mass spectrometry (ToF-SIMS). For this purpose, 12-(pyridin-4-yl)dodecane-1-thiol, consisting of a surface-active head group, an unfunctionalized hydrocarbon backbone and a terminal pyridyl group, has been synthesized and deposited on gold surfaces. Coordination of Pd(II) ions to the pyridyl group was examined. Furthermore, a reversible protonation/deprotonation cycle has been applied, and the relation between protonation and the amount of complexed palladium was studied. Investigation of the SAM by angle-resolved NEXAFS spectroscopy revealed the aliphatic backbone to be preferentially upright oriented with the aromatic head group being not preferentially oriented. The palladium layer was further coordinated with a CF3-labeled terpyridine ligand in order to prove the accessibility of the Pd(II) ions to further complexation and the platform useful for deposition of further layers toward a multi-layered system. KW - Supramolecular surface chemistry KW - Pyridine terminated monolayer KW - NEXAFS spectroscopy KW - ToF-SIMS KW - Pyridine-metal coordination PY - 2012 U6 - https://doi.org/10.1016/j.susc.2011.10.020 SN - 0039-6028 VL - 606 IS - 3-4 SP - 367 EP - 377 PB - Elsevier CY - Amsterdam AN - OPUS4-25282 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Carvalho, José Joao A1 - Walter, Astrid A1 - Baermann, Yvonne A1 - Weller, Michael G. A1 - Panne, Ulrich A1 - Schenk, J.A. A1 - Schneider, Rudolf T1 - Non-invasive monitoring of immunization progress in mice via IgG from feces N2 - A non-invasive method to monitor the humoral immune response in mice after immunization is described. From fecal pellets of an individual mouse, a sufficient amount of active immunoglobulins or their fragments can be extracted to perform a regular examination of the status of the immune response by immunoassay. Hapten-specific antibodies from the feces of mice from three immunization trials showed very similar characteristics to those obtained from serum at a given date. Therefore, it can be suspected that some serum IgG enters the intestinal lumen and ends up in the feces, where they appear to be considerably stable. Hapten-specific IgAs were not found in the feces. Being able to analyze antibody titers in feces could be an interesting animal welfare refinement to standard practice that does not entail repeated blood sampling. KW - Immunization monitoring KW - IgG KW - Coproantibodies KW - Feces KW - Animal welfare KW - 3R concept PY - 2012 UR - http://iv.iiarjournals.org/content/26/1/63.full.pdf+html SN - 0258-851x VL - 26 IS - 1 SP - 63 EP - 70 PB - In vivo CY - Athens AN - OPUS4-25283 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Bachmann, Marcel A1 - Avilov, Vjaceslav A1 - Gumenyuk, Andrey A1 - Rethmeier, Michael T1 - Numerical simulation of full-penetration laser beam welding of thick aluminium plates with inductive support N2 - A three-dimensional laminar steady-state numerical model was developed to investigate the influence of an alternating current (ac) magnetic field during high-power full-penetration laser welding on the weld pool dynamics and weld cross section of a 20 mm thick aluminium plate in flat position. Three-dimensional heat transfer, fluid dynamics including phase transition and electromagnetic field partial differential equations were solved iteratively with the commercial finite element software COMSOL Multiphysics using temperature-dependent material properties up to evaporation temperature. Thermocapillary convection at the weld pool surfaces, natural convection and latent heat of solid–liquid phase transition were taken into account in this model. Solidification was modelled by the Carman–Kozeny equation for porous media morphology. The ac magnet was mounted on the root side of the weld specimen. The magnetic field was aligned perpendicular to the welding direction. The flow pattern in the melt and thus also the temperature distribution were significantly changed by the application of oscillating magnetic fields. It was shown that the application of an ac magnetic field to laser beam welding allows for a prevention of the gravity drop-out. The simulation results are in good qualitative agreement with the experimental observations. KW - Electromagnetic weld pool support KW - Laser beam welding KW - Lorentz force KW - Marangoni stresses KW - Natural convection PY - 2012 U6 - https://doi.org/10.1088/0022-3727/45/3/035201 SN - 0022-3727 SN - 1361-6463 VL - 45 IS - 3 SP - 035201-1 - EP - 035201-13 PB - IOP Publ. CY - Bristol AN - OPUS4-25286 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Dorgerloh, Ute A1 - Becker, Roland A1 - Lutz, A. A1 - Bremser, Wolfram A1 - Hilbert, S. A1 - Nehls, Irene T1 - How to improve reliability in groundwater analysis: over a decade of experience with external quality control in field campaigns on volatile halogenated compounds N2 - The reliability in measurement results obtained during environmental monitoring is crucial for the assessment and further planning of remediation efforts on the respective contaminated sites by the responsible authorities. A case study concerned with groundwater contaminated with perchloroethylene, trichloroethylene and 1,1,2-trichlorotrifluoroethane including their degradation products which involves private contract laboratories and an independent provider of quality assurance (QA) is presented. The experience gained with biannual monitoring campaigns over 14 years indicates that the selection of contractors on basis of accreditation status and successful performance in interlaboratory comparisons are not sufficient. Rather the auditing of the contractors by the QA provider prior to each campaign and the crosschecking of selected monitoring samples by the QA provider led to a lasting improvement of reliability in the contractors' measurement results. A mean deviation of 20% from the reference value determined by the QA provider for the crosschecked samples was reached. KW - Groundwater monitoring KW - External quality management KW - QM KW - VOC PY - 2012 U6 - https://doi.org/10.1039/c1em10460h SN - 1464-0325 SN - 1464-0333 VL - 14 IS - 1 SP - 217 EP - 223 PB - Royal Society of Chemistry CY - Cambridge AN - OPUS4-25288 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Martin, Tina T1 - Complex resistivity measurements on oak N2 - In this paper complex electrical resistivity measurements on oak samples are described. They were performed to study the effect of anisotropy, moisture content and fungi-infection. The laboratory results indicate that anisotropy of wood affects not only the electrical resistivity but also the phase shift. The results can be explained by the macro- and microstructure of wood. The moisture experiment showed that resistivity and phase behave differently. As expected, resistivity decreases with increasing moisture. In contrast, phase and the imaginary part of conductivity first increase with rising moisture content but then start to decrease again at higher moisture level. The experiment involving fungi-infected wood proved particularly important. Its results suggest that phase can be used as an indicator for the structural damage of wood cells.-----------------------------------------------------------------------------------------------------------------------------------------------------------In diesem Artikel werden die Ergebnisse von Messungen des komplexen elektrischen Widerstands an Eichenholz gezeigt. Mit dem Verfahren der Spektral Induzierten Polarisation (SIP) wurden Untersuchungen zur Anisotropie, zum Wassersättigungsverhalten und zum Pilzbefall an Eichenkernholzproben durchgeführt. Diese Laborergebnisse zeigen, dass die Anisotropie des Holzes nicht nur Einfluss auf den elektrischen spezifischen Widerstand hat, sondern auch auf die Phasenverschiebung zwischen Strom- und Spannungssignal. Beim hier gezeigten Sättigungsversuch zeigte sich auch, dass sich Phase und spezifischer Widerstand verschieden verhalten. Während der Widerstand mit zunehmender Holzfeuchte kontinuierlich abnimmt, steigt die Phase bis zu einem bestimmten Holzfeuchtegehalt an und nimmt danach erst ab. Weitreichende Konsequenzen hatten die Experimente, bei denen gesundes Eichenkernholz mit dem braunfäuleerregenden Pilz Daedalea Quercina infiziert wurde. Aus diesen Ergebnissen lässt sich schließen, dass sich der komplexe elektrische Widerstand als Diagnosemethode für Pilzbefall eignen kann. KW - Spectral induced polarisation (SIP) KW - Anisotropy KW - Moisture KW - Daedalea Quercina KW - Electrical measurements PY - 2012 U6 - https://doi.org/10.1007/s00107-010-0493-z SN - 0018-3768 VL - 70 IS - 1-3 SP - 45 EP - 53 PB - Springer CY - Berlin ; Heidelberg AN - OPUS4-25272 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Ullner, Christian A1 - Brauser, Stephan A1 - Subaric-Leitis, Andreas A1 - Weber, Gert A1 - Rethmeier, Michael T1 - Determination of local stress-strain properties of resistance spot-welded joints of advanced high-strength steels using the instrumented indentation test N2 - For spot-welded joints, the resistance to mechanical stress depends on the local strength properties and gradients in the weld area. The commonly used methods for investigating the stress–strain behaviour across the weld area are connected with a high level of sample preparation and with considerable limitations in local resolution. A promising method for determining locally resolved stress–strain curves is the instrumented indentation test in connection with the method of representative stress and strain (RS) and the method of artificial neural networks (NNs). The stress–strain properties of the weld nugget and the base metal determined by these two methods are compared and discussed, additionally in relation to the stress–strain curves obtained from the tensile test. The measured Vickers hardness across the weld area is compared with the evaluated local stress–strain properties. Three steels used in automobile manufacturing are investigated: mild steel DC04 and two advanced high-strength steels (TRIP steel HCT690T and martensitic steel HDT 1200M). The results of the two methods (RS and NN) show good correspondence for the base metal area but some significant differences for the weld nugget. Comparing the data across the weld area, no evidence of the presence of residual stress (which would influence the results) was found. KW - Ortsaufgelöst KW - Lokale Spannungs-Dehnungskurven KW - Punktschweißverbindung KW - Instrumentierte Eindringprüfung PY - 2012 U6 - https://doi.org/10.1007/s10853-011-5936-3 SN - 0022-2461 SN - 1573-4803 VL - 47 IS - 3 SP - 1504 EP - 1513 PB - Springer Science + Business Media B.V. CY - Norwell, Mass. AN - OPUS4-25276 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Skrotzki, Birgit A1 - Brookes, S. A1 - Kühn, Hans-Joachim A1 - Sievert, Rainer A1 - Klingelhöffer, Hellmuth A1 - Pfetzing, J. A1 - Peter, D. A1 - Eggeler, G. T1 - Axial-Torsional Thermo-Mechanical Fatigue of a Near-Gamma TiAl-Alloy T2 - Plasticity 2012 CY - San Juan, Puerto Rico DA - 2012-01-03 PY - 2012 AN - OPUS4-25294 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Beck, Uwe T1 - Plasmabeschichtungsverfahren - eine Übersicht T2 - Innovationsforum Schutz und Veredelungsschichten, eingeladener Übersichtsvortrag CY - Wildau, Germany DA - 2012-02-28 PY - 2012 AN - OPUS4-25241 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Beck, Uwe T1 - Charakterisierung idealer, realer und modifizierter Oberflächen für den sterilen Behälterbau T2 - Innovationsforum Schutz- und Veredelungsschichten, eingeladener Übersichtsvortrag CY - Wildau, Germany DA - 2012-02-28 PY - 2012 AN - OPUS4-25242 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Bothe, Martin A1 - Mya, K.Y. A1 - Lin, E.M.J. A1 - Yeo, C. C. A1 - Lu, X. A1 - He, C. A1 - Pretsch, Thorsten T1 - Triple-shape properties of star-shaped POSS-polycaprolactone polyurethane networks N2 - Here, we present an investigation of the triple-shape properties of star-shaped polyhedral oligomeric silsesquioxane-poly(ε-caprolactone) polyurethanes (SPOSS-PUs), which have three-dimensional network structures. In a typical 'triple-shape functionalization process', mostly consisting of two tensile deformations at different temperatures, chain immobilization of the polymer network component poly(ε-caprolactone) (PCL) was successfully realized first through crystallization and then through vitrification. Subsequently, large parts of the respective strains were released under stress-free recovery conditions. The two-fold fixed ('programmed') specimens responded to heating with two independent length contractions (switching steps); the first shape change was associated with PCL devitrification and the second one with the melting of hitherto crystalline PCL. It was revealed that the triple-shape properties of SPOSS-PU networks considerably depend on PCL network chain length. When applying exactly the same 'triple-shape creation procedure', larger strain releases were detected in the first transition for polymers with a higher PCL network chain length, whereas the second transition was more accentuated for SPOSS-PU networks with a shorter PCL chain length. In the course of thermo-mechanical cycling, the formation of a neck during the second tensile deformation was repeatedly detected for SPOSS-PUs with higher PCL network chain length; in the subsequent recovery process the specimens even exhibited the highest total strain recoverability. Finally, gradual strain release could be achieved at temperatures below the PCL melting transition through the selection of up to four temperature holding steps, at which every time stable shapes were formed. KW - Shape memory polymer KW - Active polymer KW - Triple-shape polymer KW - Hybrid star-shaped polymer KW - POSS-polycaprolactone polyurethanes KW - Thermo-mechanical properties PY - 2012 U6 - https://doi.org/10.1039/c1sm06474f SN - 1744-683X VL - 8 IS - 4 SP - 965 EP - 972 PB - RSC Publ. CY - Cambridge AN - OPUS4-25260 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Köppl, T. A1 - Brehme, Sven A1 - Wolff-Fabris, F. A1 - Altstädt, V. A1 - Schartel, Bernhard A1 - Döring, M. T1 - Structure-property relationships of halogen-free flame-retarded poly(butylene terephthalate) and glass fiber reinforced PBT N2 - Flame retardancy for thermoplastics is a challenging task where chemists and engineers work together to find solutions to improve the burning behavior without strongly influencing other key properties of the material. In this work, the halogen-free additives aluminum diethylphosphinate (AlPi-Et) and a mixture of aluminum phosphinate (AlPi) and resorcinol-bis(di-2,6-xylyl phosphate) (AlPi-H + RXP) are employed in neat and reinforced poly(butylene terephthalate) (PBT), and the morphology, mechanical performance, rheological behavior, and flammability of these materials are compared. Both additives show submicron dimensions but differ in terms of particle and agglomerate sizes und shapes. The overall mechanical performance of the PBT flame-retarded with AlPi-Et is lower than that with AlPi-H-RXP, due to the presence of larger agglomerates. Moreover, the flow behavior of the AlPi-Et/PBT materials is dramatically changed as the larger rod-like primary particles build a percolation threshold. In terms of flammability, both additives perform similar in the UL 94 test and under forced-flaming combustion. Nevertheless, AlPi-Et performs better than AlPi-H + RXP in the LOI test. The concentration required to achieve acceptable flame retardancy ranges above 15 wt %. KW - Polyesters KW - Fibers KW - Morphology KW - Structure–property relations KW - Flame retardance PY - 2012 U6 - https://doi.org/10.1002/app.34910 SN - 0021-8995 SN - 1097-4628 VL - 124 IS - 1 SP - 9 EP - 18 PB - Wiley InterScience CY - Hoboken, NJ AN - OPUS4-25253 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Mönch, Bettina T1 - GC-MS-Verfahren zur Homogenitätsprüfung - Ethylglucuronid in Haaren T2 - 22. Doktorandenseminar des AK Separations Science CY - Hohenroda, Germany DA - 2012-01-08 PY - 2012 AN - OPUS4-25259 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Grehn, M. A1 - Bonse, Jörn A1 - Mermillod-Blondin, A. A1 - Höfner, M. A1 - Seuthe, T. A1 - Theiss, C. A1 - Rosenfeld, A. A1 - Eberstein, M. A1 - Eichler, H. J. T1 - Influence of the chemical composition on the femtosecond laser damage of binary and ternary silicate glasses T2 - International High-Power Laser Ablation Conference (HPLA 2012) CY - Santa Fe, NM, USA DA - 2012-04-30 PY - 2012 AN - OPUS4-24360 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Lerche, D. A1 - Rietz, U. A1 - Hielscher, Stefan A1 - Beck, Uwe T1 - A new centrifuge technology for efficient and reliable testing of composite strength of bonded joints and coated surfaces T2 - ACHEMA 2012 CY - Frankfurt am Main, Germany DA - 2012-06-18 PY - 2012 AN - OPUS4-24265 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Dombrowski, Felix A1 - Marx, Heidi A1 - Ploska, Ute A1 - Nicolaides, Dagmar A1 - Stiller, M. A1 - Knabe, C. A1 - Berger, Georg T1 - Solubility and ingrowth behaviour of degradable and figuline calcium alkaline phosphate cements N2 - The thrust of the investigations presented here is to point out the degradation behaviour in vitro and the ingrowth behaviour in vivo of four different calcium alkaline phosphate cements. Two of the figuline and mouldable composites consist of the crystalline phase Ca2KNa(PO4)2 and two of the crystalline phase Ca10[K/Na](PO4)2 each containing 2wt% medium gel strength porcine gelatin. Furthermore A-TCP was added to both Ca10[K/Na](PO4)2 cements as a hardening supporting reactant. The testing material groups differ in small amorphous portions containing either silica phosphate (GB9), magnesium potassium phosphate (GB14) or diphosphates (401545 and 401545(70)). The respective composites show a monomodal particle size distribution (d50~7µm; span~4) and an average total porosity around 28vol%.For the solubility studies cylindrical samples (d=6mm; h=12mm) were stored in a 0.1mol TRIS buffer solution and incubated at 37°C for maximum 50 weeks. The storage solution was analysed and renewed every week. The results are plotted cumulative. For the in vivo studies critical size defects were dissected to mandibles in a sheep model in which a 1cm³ area of the bottom of the mandibles was surgically resected and replaced with the figuline cements whereas the mouldability allows the reconstruction of the original outer contour without draining off even when replacing upside down. KW - Calcium alkaline phosphate cement KW - Gelatin KW - Figuline KW - Solubility KW - Ingrowth behavior PY - 2012 U6 - https://doi.org/10.4028/www.scientific.net/KEM.493-494.387 SN - 1013-9826 VL - 493-494 SP - 387 EP - 390 PB - Trans Tech Publ. CY - Aedermannsdorf AN - OPUS4-24924 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Dombrowski, Felix A1 - Hoffmann, Rita A1 - Ploska, Ute A1 - Marx, Heidi A1 - Berger, Georg T1 - Investigations on degradable and figuline calcium alkaline phosphate cements with multimodal particle size distribution N2 - The paper presented here deals with rheological and hardening properties during the setting reaction, and density and compressive strength after the final setting of a figuline composite consisting of Ca2KNa(PO4)2 and 2wt% medium gel strength gelatin. Compared to the composite with monomodal particle size distribution (d50=7.18µm; span=3.9) and its properties during and after setting reaction, the goal of this work is to increase the resulting product compressive strength by mixing different particle sizes in order to obtain bi- and trimodal distributions. For the bimodal powder mixtures the ratio in diameter (dcourse/dsmall) was chosen with 7/1 and volume ratio dcourse/dsmall was 70/30%. For the trimodal powder mixtures the ratio in diameter (dcourse/dmedium/dsmall) was chosen with 70/7/1 and volume ratio dcourse/dmedium/dsmall was set to 44/28/28%.After establishing an adequate crushing and sieving process the tap density and powder density of each fraction was determined. Subsequently, the different particle sizes were mixed and the densities and the Hausner ratio were determined again. The mixtures show an increase in both densities especially the tap density increased significantly. Rheological investigations show that the graphs of storage and loss moduli of the multimodal powder mixtures respectively are similar. The characteristic setting times show a slight decrease compared with the monomodal composite but not significantly different data. When comparing the resulting compressive strength of cylindrical samples, which were stored direct after reaching the initial setting time under physiological conditions, the studies illustrated in all cases for the multimodal mixtures a significant increase in compressive strength and a higher density. KW - Calcium alkaline phosphate cement KW - Gelatin KW - Compressive strength KW - Figuline KW - Particle size PY - 2012 U6 - https://doi.org/10.4028/www.scientific.net/KEM.493-494.355 SN - 1013-9826 VL - 493-494 SP - 355 EP - 360 PB - Trans Tech Publ. CY - Aedermannsdorf AN - OPUS4-24925 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Schlichting, Joachim A1 - Maierhofer, Christiane A1 - Kreutzbruck, Marc T1 - Crack sizing by laser excited thermography N2 - Active thermography is a nowadays widely used NDT method making use of thermal material properties for defect detection. Basically, the sample is heated and the resulting surface temperature is recorded by an IR camera. For laser thermography a laser is used to heat the sample locally. The resulting spherical heat flow allows the detection of voids in arbitrary orientation. In this work, a method is presented which is suitable for the quantitative characterization of depth and angle of surface cracks. The main idea is to evaluate the crack-caused asymmetries of the laser's thermal footprint. The heat is introduced at fixed reference positions relative to the crack. In this paper a data analysis procedure is presented which allows the crack depth and angle to be described by only two characteristic scalar parameters. By investigating artificial test specimens with spark eroded notches, the feasibility of this method is validated. Furthermore, the behavior of the characteristic parameters with variations of crack angle, depth and experimental conditions is studied systematically by FEM simulations, showing that these parameters are well behaved. KW - Thermography KW - Laser excitation KW - FEM modeling KW - Crack sizing PY - 2012 U6 - https://doi.org/10.1016/j.ndteint.2011.09.014 SN - 0963-8695 VL - 45 IS - 1 SP - 133 EP - 140 PB - Butterworth-Heinemann CY - Oxford AN - OPUS4-24873 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Beck, Uwe A1 - Hertwig, Andreas T1 - Ellipsometry - Practical Aspects of Measurement and Data Evaluation T2 - 7. Workshop Ellipsometry, March 5-7, 2012; Review Tutorial invited CY - Leipzig, Germany DA - 2012-03-05 PY - 2012 AN - OPUS4-24894 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Quillard, S. A1 - Mellier, C. A1 - Gildenhaar, Renate A1 - Hervelin, J. A1 - Deniard, P. A1 - Berger, Georg A1 - Bouler, J.-M. T1 - Raman and infrared studies of substituted ß-TCP N2 - Several substituted β-tricalcium phosphates have been prepared with different cations (monovalent, divalent and trivalent) and at various levels of substitution. Structural investigations have proved that fewer than ~10% wt substitution, the substituted compounds are isostructural to β-TCP, leading to solid solutions. These samples have been characterized by infrared and Raman spectroscopies. The vibrational spectra show mainly the bands related to the vibrations of PO43- tetrahedrons present in the structure. As Raman scattering and infrared absorption are local probes, the bands are sensitive to the local environment of the distinct tetrahedrons, related to the site of substitution and to the nature of the cations. KW - Tricalcium phosphates KW - Ionic substitution KW - Vibrational spectroscopies PY - 2012 U6 - https://doi.org/10.4028/www.scientific.net/KEM.493-494.225 SN - 1013-9826 VL - 493-494 SP - 225 EP - 230 PB - Trans Tech Publ. CY - Aedermannsdorf AN - OPUS4-24954 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Woydt, Mathias A1 - Merryweather, St. A1 - Zweifel, D. T1 - Fuel economy through engine oils based on polyalkylene glycols T2 - 18. Int. Colloq. Tribology - Industrial and Automotive Lubrication CY - Ostfildern, Germany DA - 2012-01-10 PY - 2012 AN - OPUS4-25342 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Wäsche, Rolf A1 - Hartelt, Manfred A1 - Kaltzakorta, O. A1 - Tato, W. T1 - Tribological behaviour of polyurethane under oscillating sliding conditions against cast iron T2 - 18. Int. Colloq. Tribology - Industrial and Automotive Lubrication CY - Ostfildern, Germany DA - 2012-01-10 PY - 2012 AN - OPUS4-25343 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Ramge, Peter ED - Kusterle, W. T1 - Entwicklung und Modifikation von PCC- und SPCC-Mörteln für die Betoninstandsetzung T2 - Spritzbeton - Tagung 2012 CY - Alpbach, Tirol, Österreich DA - 2012-01-12 PY - 2012 SP - 1 EP - 18(?) AN - OPUS4-25389 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Schalau, Bernd A1 - Habib, Abdel Karim T1 - Gasausbreitungsmodellierung T2 - Vortragsveranstaltung "Auswirkung einer Freisetzung von toxischen Schwergasen mit terroristichem Hintergrund" beim Bundeskriminalamt CY - Meckenheim, Germany DA - 2012-01-19 PY - 2012 AN - OPUS4-25370 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Sugiyama, Kaori A1 - Müller, Larissa A1 - Jakubowski, Norbert T1 - Application of new sample introduction systems for single cells based on direct injection and laser ablation T2 - 2012 Winter Conference on Plasma Spectrochemistry CY - Tucson, AZ, USA DA - 2012-01-09 PY - 2012 N1 - Geburtsname von Sugiyama, Kaori: Shigeta, K. - Birth name of Sugiyama, Kaori: Shigeta, K. N1 - Geburtsname von Müller, Larissa: Wäntig, L. - Birth name of Müller, Larissa: Wäntig, L. AN - OPUS4-25371 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - El Malah, T. A1 - Ciesielski, A. A1 - Piot, L. A1 - Troyanov, S.I. A1 - Mueller, U. A1 - Weidner, Steffen A1 - Samorì, P. A1 - Hecht, S. T1 - Conformationally pre-organized and pH-responsive flat dendrons: synthesis and self-assembly at the liquid-solid interface N2 - Efficient Cu-catalyzed 1,3-dipolar cycloaddition reactions have been used to prepare two series of three regioisomers of G-1 and G-2 poly(triazole-pyridine) dendrons. The G-1 and G-2 dendrons consist of branched yet conformationally pre-organized 2,6-bis(phenyl/pyridyl-1,2,3-triazol-4-yl)pyridine (BPTP) monomeric and trimeric cores, respectively, carrying one focal and either two or four peripheral alkyl side chains. In the solid state, the conformation and supramolecular organization were studied by means of a single crystal X-ray structure analysis of one derivative. At the liquid–solid interface, the self-assembly behavior was investigated by scanning tunneling microscopy (STM) on graphite surfaces. Based on the observed supramolecular organization, it appears that the subtle balance between conformational preferences inherent in the dendritic backbone on the one side and the adsorption and packing of the alkyl side chains on the graphite substrate on the other side dictate the overall structure formation in 2D. KW - Dendrons KW - MALDI Massenspektrometrie PY - 2012 U6 - https://doi.org/10.1039/c1nr11434d SN - 2040-3364 SN - 2040-3372 VL - 4 SP - 467 EP - 472 PB - RSC Publ. CY - Cambridge AN - OPUS4-25378 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Jakubowski, Norbert T1 - Short Course: ICP-MS with Sector Field Devices T2 - 2012 Winter Conference on Plasma Spectrochemistry CY - Tucson, AZ, USA DA - 2012-01-09 PY - 2012 AN - OPUS4-25367 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Jakubowski, Norbert T1 - Thermo Fisher Scientific Award in Plasma Spectrochemistry T2 - 2012 Winter Conference on Plasma Spectrochemistry CY - Tucson, AZ, USA DA - 2012-01-09 PY - 2012 AN - OPUS4-25368 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Schröder, Volkmar A1 - Rauchegger, Christian A1 - Schalau, Bernd T1 - Freisetzung und Ausbreitung toxischer Schwergase in Verbindung mit unkonventionellen Spreng- und Branvorrichtungen T2 - Vortragsveranstaltung des Bundeskriminalamtes "Auswirkung einer Freisetzung von toxischen Schwergasen mit terroristischem Hintergrund" CY - Meckenheim, Germany DA - 2012-01-19 PY - 2012 AN - OPUS4-25369 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Bartholmai, Matthias A1 - Goedecke, Thomas T1 - Ständig überwacht N2 - Mit dem Projekt SIGRID will die BAM Transpondertechnik für Gefahrguttransporte nutzbar machen. KW - Gefahrgut KW - RFID KW - BAM Datenbank Gefahrgut KW - Monitoring KW - Ladungssicherung PY - 2012 SN - 0944-6117 VL - 1 SP - 18 EP - 19 PB - Vogel CY - München AN - OPUS4-25324 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Skrotzki, Birgit A1 - Brookes, Stephen-Peter A1 - Kühn, Hans-Joachim A1 - Sievert, Rainer A1 - Klingelhöffer, Hellmuth A1 - Pfetzing, J. A1 - Peter, D. A1 - Eggeler, G. ED - Khan, A.S. ED - Kabirian, F. ED - Liu, J. T1 - Axial-torsional thermo-mechanical fatigue of a near-gamma tial-alloy T2 - Plasticity '12 - 18th International symposium on plasticity and its current applications CY - San Juan, PR, USA DA - 2012-01-03 KW - TMF KW - Multiaxial fatigue KW - Titanium aluminides PY - 2012 SN - 0-9659463-0-4 SP - 187 EP - 189 PB - NEAT Press CY - Fulton, Maryland, USA AN - OPUS4-25325 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - BOOK A1 - Fahmy, A. A1 - Friedrich, Jörg Florian T1 - Structure property relationship of plasma polymer films - Plasma polymerization, plasma treatment and characterization methods PY - 2012 SN - 978-3-8443-2096-1 SP - 1 EP - 160 PB - Lambert academic publishing AN - OPUS4-25390 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Toepfer, I. A1 - Favet, J. A1 - Schulte, A. A1 - Schmölling, M. A1 - Butte, W. A1 - Triplett, E.W. A1 - Broughton, W.J. A1 - Gorbushina, Anna T1 - Pathogens as potential hitchhikers on intercontinental dust N2 - Desert dust seeds distant lands and waters with minerals as well as micro-organisms raising the question of whether this ancient phenomenon also spreads pathogens across the globe. Severe dust storms require strong winds blowing over land-masses that are largely devoid of vegetation, effectively limiting the scope for winds to raise pathogens into the air. Nevertheless, changing patterns of land-use, often driven by belligerency, result in refugees spreading to areas that were previously deemed barely habitable. With the help of the International Committee of the Red Cross, a number of sand/dust samples were collected from the Republic of Chad, some near refugee camps, others further removed from human influence. In parallel studies, we documented the micro-organisms present in these samples and used a number of the isolates here to test the effect of environmental constraints on their ability to survive intercontinental flight. We also added traditional pathogens to the palette of microbes and tested the effects of UV irradiation, desiccation and temperature on survival of both bacteria and fungi. A clear trend was obvious—those microbes that are coloured or able to form conidia or spores (in other words, those that are native to deserts) were well able to resist the imposed stresses. On the other hand, most pathogens were more sensitive to stresses than the environmental isolates. Toxin production in two species of Aspergillus was also investigated. Short-term desiccation (simulating environmental conditions during intercontinental travel) of sand amended with fungal spores containing sterigmatocystin leads to increased mycotoxin contents, but significant mycotoxin production was only possible under growth-permissive conditions, e.g. at higher humidity. It thus seems likely that an ever-decreasing fraction of the initial pathogen load survives as the dust recedes from its desert source and that those organisms that land on other continents are highly enriched in desert dwellers. KW - Chad KW - Desert sand KW - Sterigmatocystin KW - Aspergillus sydowii KW - A. versicolor PY - 2012 U6 - https://doi.org/10.1007/s10453-011-9230-2 SN - 0393-5965 SN - 1573-3025 VL - 28 IS - 2 SP - 221 EP - 231 PB - Springer Science + Business Media B.V. CY - Dordrecht [u.a.] AN - OPUS4-24814 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Tölle, Florian A1 - Gumenyuk, Andrey A1 - Backhaus, A. A1 - Olschok, S. A1 - Rethmeier, Michael A1 - Reisgen, U. T1 - Welding residual stress reduction by scanning of a defocused beam N2 - The residual stresses in narrow electron or laser beam welds with high stress gradients are decreased without any contact surfaces or additional equipment by applying the welding beam after welding in a defocused mode for heating the material regions in a certain distance from the weld on both sides. In case of electron beam application, the beam is positioned and focused by the electromagnetic coil with high frequency. In case of laser beam application a laser scanner optics enables fast positioning by an optomechanic beam deflection, while defocusing of the laser beam is obtained by increasing the distance between scanner optics and workpiece. Dependent on the component geometry and on the beam power different process parameters are used. The adjustable process parameters are the radius and the power of the defocused beam and the transversal and longitudinal distances between the welding and the defocused beam. The mechanism and the influence of the process parameters are investigated by FEM-simulation and a number of experiments on a ferritic steel S355J2+N with 5 mm thickness. FEM-simulation is used to reduce the matrix of process parameters for the experiments. The best experimental result shows a stress reduction of about 70%. KW - Residual stresses KW - Stress reduction KW - High energy beam welding KW - Post-weld heat treatment KW - Laser scanner optics PY - 2012 U6 - https://doi.org/10.1016/j.jmatprotec.2011.07.019 SN - 0924-0136 SN - 1873-4774 VL - 212 IS - 1 SP - 19 EP - 26 PB - Elsevier CY - Amsterdam AN - OPUS4-24787 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Heinze, Christoph A1 - Schwenk, Christopher A1 - Rethmeier, Michael T1 - The effect of tack welding on numerically calculated welding-induced distortion N2 - A single-layer pulsed gas metal arc weld of structural steel S355J2+N with a thickness of 5 mm is experimentally and numerically investigated. Two tack welds are considered in the numerical simulation into two different ways. First, the tack welds are represented by elements belonging to the initial material. This implies that the 'tack weld material' was not exposed to any thermal load or phase transformation before actual welding was performed. The weld seam is shortened and there is an influence on the stiffness of the whole structure affecting the calculation result. Secondly, the tack welds were simulated as conducted in the experimental welding procedure. The cases considering tack welding are compared to a simulation neglecting tack welding and to the experimental results. The influence of tack welds on the calculated welding-induced distortion is clarified and a contribution to an improved simulation-based prediction of welding-induced distortion is possible by modeling tack welding according to the realistic fabrication procedure. KW - Welding simulation KW - Welding-induced distortion KW - Gas metal arc welding KW - Tack welding PY - 2012 U6 - https://doi.org/10.1016/j.jmatprotec.2011.09.016 SN - 0924-0136 SN - 1873-4774 VL - 212 IS - 1 SP - 308 EP - 314 PB - Elsevier CY - Amsterdam AN - OPUS4-24820 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Mishra, Kirti Bhushan A1 - Wehrstedt, Klaus-Dieter T1 - Decomposition effects on the mass burning rate of organic peroxide pool fires N2 - The mass burning rate of pool fires of organic peroxides do not vary appreciably with the pool size as have been observed for the hydrocarbons. Instead the decomposition temperature largely controls the same. The dependence of mass burning rate on the decomposition temperatures namely self-accelerating decomposition temperature (SADT) and extrapolated onset temperature measured by differential scanning calorimetry (DSC) for organic peroxide pool fires are identified and correlations are developed. KW - Decomposition KW - SADT KW - Pool fire KW - Mass burning rate KW - Organic peroxides KW - DSC PY - 2012 U6 - https://doi.org/10.1016/j.jlp.2011.06.014 SN - 0950-4230 SN - 1873-3352 VL - 25 IS - 1 SP - 224 EP - 226 PB - Butterworth CY - Guildford, Surrey AN - OPUS4-25020 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Gildenhaar, Renate A1 - Knabe, C. A1 - Wirth, Cynthia A1 - Linow, Ulf A1 - Houshmand, A. A1 - Berger, Georg T1 - Calcium alkaline phosphate scaffolds for bone regeneration 3D-fabricated by additive manufacturing N2 - Calcium alkaline phosphate granulates can be used for substitution of several bone defects but for the reconstruction of large skeletal parts in the maxillofacial and orthopaedic fields fitted scaffolds are preferable. Within the additive manufacturing methods, the 3D printing process offers exciting opportunities to generate defined porous scaffolds. We used a R1 printer from ProMetal Company, USA, for producing scaffolds directly from a ceramic powder. For this direct free form fabrication technology the powder has to possess a lot of specific properties both for the generation of a stable green body and also for the subsequent sintering preparation. For this printing process we prepared different granules in a fluidized bed process containing Ca2KNa(PO4)2 as main crystalline phase. Granules were characterized by different methods and several sieve fractions were used for preparing disc like and cylindrical parts. The suitability of granules for this printing process was determined by porosity and strength of produced bodies. Next to granules' performance both of these properties can be directly influenced by 3D printing process parameters. With knowledge of suitable process parameters scaffolds with different porosity in a respective desired design can be created. In this study, cylindrical scaffolds with graded porosity were produced for bone regeneration of segmental defects in maxillofacial surgery and dental implantology by tissue engineering. KW - 3D printing KW - Calcium alkaline phosphates KW - Ceramic scaffolds KW - Oral surgery PY - 2012 U6 - https://doi.org/10.4028/www.scientific.net/KEM.493-494.849 SN - 1013-9826 N1 - Geburtsname von Wirth, Cynthia: Gomes, C. M. - Birth name of Wirth, Cynthia: Gomes, C. M. VL - 493-494 SP - 849 EP - 854 PB - Trans Tech Publ. CY - Aedermannsdorf AN - OPUS4-24989 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - RPRT A1 - Isecke, Bernd A1 - Beck, Matthias A1 - Burkert, Andreas A1 - Lehmann, Jens A1 - Faulhaber, Armin T1 - Dauerhaftigkeitsbemessung von Stahlbetonbauteilen auf Bewehrungskorrosion - Teil 1: Systemparameter der Bewehrungskorrosion - Ermittlung der Systemparameter und quantitative Bewertung der Eigenkorrosion auf den Korrosionsfortschritt an depassiviertem Bewehrungsstahl PY - 2012 SN - 978-3-410-65221-2 SN - 0171-7197 IS - 601 / Beitrag 2 SP - 19 EP - 57 PB - Beuth CY - Berlin AN - OPUS4-27571 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Maierhofer, Christiane A1 - Röllig, Mathias A1 - Steinfurth, Henrik A1 - Ziegler, Mathias A1 - Kreutzbruck, Marc A1 - Scheuerlein, C. A1 - Heck, S. T1 - Non-destructive testing of Cu solder connections using active thermography N2 - Impulse and lock-in thermography have been applied to detect delaminations of prototype solder joints, similar to those to be produced between Cu shunts and Cu busbar stabilisers at the Large Hadron Collider (LHC) at CERN. Two infrared cameras with different detector materials and with different spectral ranges and two excitation techniques have been tested and compared for their ability to detect delaminations behind 2 and 3 mm thick Cu shunts. We have analyzed the signal to noise ratio (SNR) for each detected defect and are able to detect defects down to a nominal edge length of 4 mm behind 2 mm thick Cu shunts by using fast impulse thermography and a camera with a microbolometer array. For the 3 mm thick Cu shunt, on the other hand, the nominal 4 mm defect is only visible in the lock-in thermography phase images and the highest SNR has been achieved with a cooled InSb-based camera. In addition, numerical simulations show the influence of the minimum detectable defect size on the shunt thickness and that the developed on-site testing technique is sufficient to find all defects that are detectable theoretically. KW - Active thermography KW - Solder joint KW - Copper KW - FFT KW - Signal-to-noise-ratio PY - 2012 U6 - https://doi.org/10.1016/j.ndteint.2012.07.010 SN - 0963-8695 VL - 52 SP - 103 EP - 111 PB - Butterworth-Heinemann CY - Oxford AN - OPUS4-27575 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Akkerman, Floris T1 - Marktüberwachung für Ökodesign - Herausforderungen bei Industrieprodukten N2 - Die Ökodesignrichtlinie setzt einen Rahmen für vielfältige Anforderungen an Produkte. Ziel ist die Verringerung der Umweltauswirkungen über den gesamten Produktlebenszyklus. Dazu werden die vorgeschlagenen Produkte in Gruppen eingeteilt, Markt, Technik, Nutzerverhalten und bestehende Regelungen werden nach einer festen Methode ermittelt und Verbesserungspotenziale werfen identifiziert. Anhand von Szenarien, die das Vorgehen „weiter wie bisher" (BAU, business as usual) mit den Auswirkungen einer möglichen gesetzlichen Regelung vergleichen, wird eingeschätzt, ob eine solche Anforderung sinnvoll und lohnend ist. Die Entscheidung darüber, welche Regeln letztendlich gelten, trifft die EU-Kommission zusammen mit den Mitgliedsstaaten (Komitologieverfahren). Am Ende des Prozesses steht eine Verordnung der Kommission mit bindenden Mindestanforderungen für eine Produktkategorie. T2 - 11. Technischer Tag VEM CY - Wernigerode, Germany DA - 25.09.2012 KW - Energieeffizienz KW - Investitionsgüter KW - Marktüberwachung KW - Ökodesign PY - 2012 SP - 1 EP - 2 AN - OPUS4-27576 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Müller, Christina A1 - Bertovic, Marija A1 - Pavlovic, Mato A1 - Kanzler, Daniel A1 - Ewert, Uwe A1 - Pitkänen, J. A1 - Ronneteg, U. T1 - Holistically evaluating the reliability of NDE systems - paradigm shift N2 - New methodologies for evaluating the reliability of NDE systems are discussed in accordance with the specific requirements of industrial application. After a review of the substantive issues from the previous decades, the go forward guidance is concluded. For high safety demands a quantitative probability of detection (POD) created from hit miss experiments or signal response analysis and ROC (Receiver Operating Characteristics) are typically created. The modular model distinguishes between the influence of pure physics and technique, industrial application factors and the human factor and helps to learn what factors are covered by modelling, open or blind trials. A new paradigm is offered to consider the POD or reliability of the system as a function of the configuration of input variables and use it for optimisation rather than for a final judgement. New approaches are considered dealing with real defects in a realistic environment, affordable but precisely like the Bayesian approach or model assisted methods. Among the influencing parameters, the human factor is of high importance. A systematic psychological approach helps to find out where the bottlenecks are and shows possibilities for improvement. T2 - 18th WCNDT - World conference on nondestructive testing CY - Durban, South Africa DA - 2012-04-16 KW - Reliability of NDE KW - POD KW - ROC KW - Modular Model KW - Multiparameter-POD KW - Bayesian Approach KW - Human Factor PY - 2012 SN - 978-0-620-52872-6 SP - 1 EP - 14 (Paper 591) AN - OPUS4-27579 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Pavlovic, Mato A1 - Takahashi, Kazunori A1 - Müller, Christina T1 - Probability of detection as a function of multiple influencing parameters N2 - It is not always only the size of the flaw that determines the severity of the flaw for the structure. In such cases, it is important to express the capability of the non-destructive testing (NDT) system to detect a flaw with respect to exactly those parameters that determine flaw severity. The multi-parameter reliability model presented in this article shows a way of calculating and expressing the probability of detection (POD) as a function of different influencing parameters, using numerically simulated NDT system responses and experimentally measured responses. A successful application of the model is demonstrated on the data from a transmit-receive longitudinal (TRL) ultrasonic inspection of a cast iron component. The POD of the surface-breaking semi-elliptical crack-like flaw is expressed as a function of its depth and length. In a direct comparison with the conventional signal response analysis, where the POD is expressed as a function of only the flaw size, the method provides a more comprehensive estimation of the reliability of the NDT system. PY - 2012 U6 - https://doi.org/10.1784/insi.2012.54.11.606 SN - 0007-1137 VL - 54 IS - 11 SP - 606 EP - 611 PB - British Institute of Non-Destructive Testing CY - Northampton AN - OPUS4-27580 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Lang, Thomas A1 - Eslahian, Kyriakos-Alexandros A1 - Maskos, Michael T1 - Ion effects in field-flow fractionation of aqueous colloidal polystyrene N2 - We discuss the effect of electrolytes on retention of aqueous colloidal polystyrene particles in asymmetrical flow (AF-FFF) and thermal field-flow fractionation (ThFFF). In both FFF subtechniques, interparticle interaction leads to non-ideal fractionation behavior, which can result in a sample load dependency. Electrostatic repulsion is reduced with increasing electrolyte concentration, resulting in a pronounced increase of retention. At higher salinities, hydrophobic interactions dominate, thus applications of AF-FFF under physiological conditions are limited. In ThFFF, also the separation mechanism of thermophoresis is affected by ionic shielding and experimental data are in accordance with recent theoretical models of thermophoresis. KW - Asymmetrical flow field-flow fractionation KW - Colloids KW - Interfaces KW - Ion effects KW - Thermal field-flow fractionation PY - 2012 U6 - https://doi.org/10.1002/macp.201200132 SN - 1022-1352 SN - 1521-3935 VL - 213 IS - 22 SP - 2353 EP - 2361 PB - Wiley-VCH Verl. CY - Weinheim AN - OPUS4-27431 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Eslahian, Kyriakos-Alexandros A1 - Maskos, Michael T1 - Hofmeister effect in thermal field-flow fractionation of colloidal aqueous dispersions N2 - In this study, the retention of colloidal polystyrene beads in aqueous dispersion in thermal field-flow fractionation (ThFFF) is investigated as function of various types and concentrations of electrolytes in the carrier liquid. A specific ion effect is observed and can be interpreted in terms of Hofmeister series. Addition of salt composed of chaotropic anions to the carrier liquid increases particle retention with increasing ionic strength up to several mM. This effect is less pronounced the more kosmotropic the anions are, up to a decrease of retention by increasing concentration of sulphate and citrate. It is demonstrated that the effect of varying cations is minor as compared to the one of anions with this model system. KW - Thermal field-flow fractionation KW - Hofmeister series KW - Specific ion effects KW - Thermophoresis KW - Soret coefficient PY - 2012 U6 - https://doi.org/10.1016/j.colsurfa.2012.02.003 SN - 0927-7757 SN - 1873-4359 VL - 413 SP - 65 EP - 70 PB - Elsevier CY - Amsterdam AN - OPUS4-27432 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Grunewald, Thomas A1 - Dr. Blum, Carsten T1 - Mechanischer Explosionsschutz - mechanisch erzeugte Funken als Zündquelle T2 - Ausbildung zum Explosionsschutzbeauftragten (Veranst.-Nr.: E-H050-12-263-2 CY - Essen, Germany DA - 2012-12-11 PY - 2012 AN - OPUS4-27434 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Ferrero, Fabio A1 - Zeps, Robert A1 - Kluge, Martin T1 - Experimental investigation on the self-heating and decomposition of tetrafluoroethylene in a 100-dm3-reactor T2 - HAZARDS XXIII CY - Southport, England DA - 2012-12-12 PY - 2012 N1 - Geburtsname von Kluge, Martin: Beckmann-Kluge, M. - Birth name of Kluge, Martin: Beckmann-Kluge, M. AN - OPUS4-27435 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Schwarz, G. A1 - Beck, S. A1 - Weller, Michael G. A1 - Linscheid, M.W. T1 - Comparison of the fragmentation behavior of differentially metal-coded affinity tag (MeCAT)-labeled peptides PY - 2012 U6 - https://doi.org/10.1002/jms.3036 SN - 1076-5174 SN - 1096-9888 VL - 47 IS - 7 SP - 885 EP - 889 PB - Wiley CY - Chichester AN - OPUS4-27436 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Kuhne, Maren A1 - Flemig, Sabine A1 - Hoffmann, Katrin A1 - Kunte, Hans-Jörg A1 - Resch-Genger, Ute A1 - Schneider, Rudolf A1 - Schenk, J. A. T1 - Flow Cytometry (FACS) for characterization and sorting of murine hybridoma cells in order to select for mab production T2 - Potsdam Days on Bioanalysis 2012 CY - Potsdam, Germany DA - 2012-11-07 PY - 2012 AN - OPUS4-27437 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Gornushkin, Igor B. A1 - Merk, Sven A1 - Demidov, Alexandr A1 - Panne, Ulrich A1 - Shabanov, Sergej V. A1 - Smith, B.W. A1 - Omenetto, N. T1 - Tomography of single and double pulse laser-induced plasma using Radon transform technique N2 - The Radon transform tomography is used for reconstruction of the emissivity distribution in single- (SP) and double-pulse (DP) laser induced plasmas in orthogonal geometry. The orthogonal DP plasma is intrinsically asymmetric and thus suitable for the Radon reconstruction. The DP plasma consists of two plasmas separated by a short time interval of ~ 1 µs. The first plasma is created in air near the surface of a Si wafer and is followed (pre-ablation mode) or preceded (post-ablation mode) by the second plasma induced on this surface. A spectrometer moves in a semi-circular path around the plasma keeping the plasma in the rotation center. The optical detection is arranged so that a thin plasma layer parallel to the target surface is monitored. The axial symmetry of the SP plasma is investigated by comparing data from the Abel inversion taken at different angles and Radon reconstruction. The multi-angle measurements are used to estimate errors of the Abel reconstruction due to asymmetries of the plasma. Time-resolved Radon reconstruction in white light is performed for the DP plasma in both pre- and post-ablation modes. In the former case, the effect of ablated aerosol on the formation of the air plasma is monitored. In the latter case, a formation of an asymmetric compression shock created by the target plasma inside the air plasma is visualized. This observation is supported by computer simulations. An interaction of the two plasmas is studied by spectrally resolved Radon reconstruction revealing a complex distribution of target and ambient species inside the plasma at all studied delay times. Overall, it is demonstrated that Radon-based tomography is an informative tool to study transient asymmetric laser induced plasmas. KW - Radon transform tomography of SP KW - DP laser induced plasma KW - LIBS KW - Orthogonal double pulse plasma PY - 2012 U6 - https://doi.org/10.1016/j.sab.2012.06.033 SN - 0584-8547 SN - 0038-6987 VL - 76 SP - 203 EP - 213 PB - Elsevier CY - Amsterdam AN - OPUS4-27438 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Drescher, Daniela A1 - Giesen, Charlotte A1 - Traub, Heike A1 - Panne, Ulrich A1 - Kneipp, Janina A1 - Jakubowski, Norbert T1 - Quantitative imaging of gold and silver nanoparticles in single eukaryotic cells by laser ablation ICP-MS N2 - Laser ablation inductively coupled plasma mass spectrometry (LA-ICP-MS) was utilized for spatially resolved bioimaging of the distribution of silver and gold nanoparticles in individual fibroblast cells upon different incubation experiments. High spatial resolution was achieved by optimization of scan speed, ablation frequency, and laser energy. Nanoparticles are visualized with respect to cellular substructures and are found to accumulate in the perinuclear region with increasing incubation time. On the basis of matrix-matched calibration, we developed a method for quantification of the number of metal nanoparticles at the single-cell level. The results provide insight into nanoparticle/cell interactions and have implications for the development of analytical methods in tissue diagnostics and therapeutics. KW - Imaging KW - Cell KW - Nanoparticles KW - Laser ablation KW - ICP-MS PY - 2012 U6 - https://doi.org/10.1021/ac302639c SN - 0003-2700 SN - 1520-6882 VL - 84 IS - 22 SP - 9684 EP - 9688 PB - American Chemical Society CY - Washington, DC AN - OPUS4-27440 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Müller, Ralf T1 - Glas und Keramik für Schlüsseltechnologien - Prozessbegleitende Prüfverfahren und Simulation T2 - Sommerkolloquium 2012 des Instituts für Gesteinshüttenkunde des RWTH Aachen CY - Aachen, Germany DA - 2012-06-21 PY - 2012 AN - OPUS4-27421 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Schulz, Wencke A1 - Dörfel, Ilona A1 - Dressler, M. A1 - Feigl, M. A1 - Nofz, Marianne A1 - Kranzmann, Axel T1 - Overview of protective action of sol-gel alumina coatings on Ni-base alloys and steels in steam-containing atmospheres T2 - Particoat Workshop CY - Costa Teguise, Spain DA - 2012-10-15 PY - 2012 AN - OPUS4-27422 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Müller, Ralf A1 - Reinsch, Stefan A1 - Eberstein, Markus A1 - Deubener, J. T1 - Sintering kinetcs of GMC with small rigid inclusions T2 - 10th. Int. Symp. Ceram. Mat. and Components for Energy and Environmental Applications CY - Dresden, Germany DA - 2012-05-20 PY - 2012 AN - OPUS4-27423 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Schulz, Wencke A1 - Dörfel, Ilona A1 - Saliwan Neumann, Romeo A1 - Nofz, Marianne A1 - Kranzmann, Axel A1 - Schorr, S. T1 - Sol-Gel Alumina Coatings for Power Plant Applications T2 - CMCEE 2012 CY - Dresden, Germany DA - 2012-05-22 PY - 2012 AN - OPUS4-27424 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Rücker, Werner A1 - Lüddecke, Falk A1 - Thöns, Sebastian T1 - Tragverhalten von Offshore Gründungskonstruktionen - Rechnerische und messtechnische Untersuchungen N2 - Dieser Artikel enthält eine Zusammenfassung von Ergebnissen des Forschungsverbundvorhabens 'OGOWIN: Optimierung aufgelöster Gründungsstrukturen für Offshore-Windenergieanlagen hinsichtlich Materialeinsatz, Montageablauf und neuer Fertigungsverfahren'. Die Ergebnisse umfassen (1) eine Untersuchung des dynamischen Verhaltens der verschiedenen Gründungsvarianten Monopile, Tripod und Jacket, (2) die Ermittlung einer Wöhlerlinie für den Grundwerkstoff eines Stahlgussknotens, (3) die Ermittlung der Traglast eines Stahlgussknotens in einem 1:1-Versuch sowie (4) Berechnungen zur Form- und Materialoptimierung. Zur Überwachung der Gebrauchstauglichkeit während des Betriebes wurden relevante Parameter hinsichtlich ihres Einflusses auf die ersten Eigenfrequenzen der o. g. Gründungskonstruktionen rechnerisch untersucht. Untersuchungen der Ermüdungsfestigkeit und die erstmalige experimentelle Ermittlung der Traglast eines Gussknotens tragen zu einem optimierten Entwurf durch genaue Kenntnis des Materialverhaltens und der höchstbeanspruchten Bereiche bei. Darüber hinaus konnte gezeigt werden, dass eine geometrische Optimierung des Stahlgussknotens unter konstruktiven Randbedingungen zu einer Verringerung des Materialaufwandes bzw. zu einer Erhöhung der Traglast führen kann. -------------------------------------------------------------------------------------------------------------------------------------- This paper contains a summary of the joint research project 'OGOWIN: Optimisation of support structures for offshore wind turbines regarding the material consumption, the construction and production sequence as well as new production methodologies'. The results comprise (1) a modal analyses of various types of offshore wind turbine support structures, (2) the fatigue strength testing of the cast steel material, (3) a large scale ultimate capacity test of a cast steel tube connection and (4) an optimisation of the tube connection aiming at material and stress reduction. The sensitivity of the relevant parameters on the first natural frequencies was quantified and the most influencing parameters were identified. The analyses of the fatigue strength and of the ultimate capacity of the cast steel tube connection support an optimised design by precise knowledge of the failure mechanisms and material behaviour. Moreover, it is shown that optimising the cast steel node can reduce the material use and stress concentration. KW - Gussknoten KW - Ermüdung KW - Traglast KW - Optimierung KW - Cast steel tube connection KW - Fatigue KW - Ultimate capacity KW - Optimisation KW - Meerestechnik KW - Offshore engineering KW - Stahlbau KW - Steel construction KW - Neue Verfahren/Versuchstechnik KW - New Processes/Experimental Techniques PY - 2012 U6 - https://doi.org/10.1002/bate.201200022 SN - 0932-8351 SN - 1437-0999 SN - 0005-6820 SN - 0341-1052 SN - 0932-6359 SN - 0932-8351 VL - 89 IS - 12 SP - 821 EP - 830 PB - Ernst & Sohn CY - Berlin AN - OPUS4-27426 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Schenk, Jonas A1 - Panne, Ulrich A1 - Buurman, Merwe T1 - Interaction of levitated ionic liquid droplets with water N2 - The influence of a humid or dry atmosphere on acoustically levitated ionic liquid droplets was studied by volumetric analysis and vibrational spectroscopy. Imidazolium-based ionic liquids with two types of anions, fluorinated (BF4 and PF6) and alkylsulfate anions, were investigated. The amount of absorbed water was correlated with structural differences of the ionic liquids and analyzed in terms of equilibrium mole fraction as well as absorption rate. The type of anion had the most significant influence on the amount of adsorbed water from the atmosphere. Furthermore, spectral changes in the in situ Raman spectra due to absorbed water were studied for all investigated ionic liquids. For 1-ethyl-3-methylimidazolium ethylsulfate, an exemplary detailed analysis of the intermolecular interactions between cations, anions and water was carried out based on the spectroscopic data. The observed band shifts were explained with a hydrogen bond between the anion and water. KW - Ionic liquids KW - Levitated droplets KW - Raman spectroscopy PY - 2012 U6 - https://doi.org/10.1021/jp309661p SN - 1520-6106 SN - 1520-5207 SN - 1089-5647 N1 - Geburtsname von Buurman, Merwe: Albrecht, M. - Birth name of Buurman, Merwe: Albrecht, M. VL - 116 IS - 48 SP - 14171 EP - 14177 PB - Soc. CY - Washington, DC AN - OPUS4-27427 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Diwakar, P.K. A1 - Loper, K.H. A1 - Matiaske, Anna-Maria A1 - Hahn, D.W. T1 - Laser-induced breakdown spectroscopy for analysis of micro and nanoparticles N2 - The use of laser-induced breakdown spectroscopy (LIBS) for analysis of micro- and nanoparticles is explored, including a brief review of the recent research, both fundamentals and applications, along with new experimental work regarding aerosol particle sampling statistics, analysis of laser ablation particles via aerosol LIBS for matrix effect minimization for bulk solids analysis, and a novel aerosol particle concentration scheme that is suited for near real-time analysis of aerosol nanoparticles. The statistical analysis reveals that the LIBS particle sampling physics are well modeled using Poisson sampling statistics, as based on analysis of calcium-rich ambient air particles. The laser-ablation LIBS (LA-LIBS) methodology was explored for a range of disparate metallic and non-metallic bulk samples, revealing a linear calibration curve for all six samples over the range of relative Mn/Fe mass concentrations. Finally, the microneedle concentration technique for aerosol nanoparticle analysis was successfully demonstrated with linear mass calibration curves for copper-rich nanoparticles. Overall, a fundamental understanding of the plasma–particle physics has enabled the formulation of robust LIBS-based nanoparticle schemes. PY - 2012 U6 - https://doi.org/10.1039/c2ja30012e SN - 0267-9477 SN - 1364-5544 VL - 27 IS - 7 SP - 1110 EP - 1119 PB - Royal Society of Chemistry CY - London AN - OPUS4-27428 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Stindt, Arne A1 - Buurman, Merwe A1 - Panne, Ulrich A1 - Riedel, Jens T1 - CO2 laser ionization of acoustically levitated droplets N2 - For many analytical purposes, direct laser ionization of liquids is desirable. Several studies on supported droplets, free liquid jets, and ballistically dispensed microdroplets have been conducted, yet detailed knowledge of the underlying mechanistics in ion formation is still missing. This contribution introduces a simple combination of IR-MALDI mass spectrometry and an acoustical levitation device for contactless confinement of the liquid sample. The homebuilt ultrasonic levitator supports droplets of several millimeters in diameter. These droplets are vaporized by a carbon dioxide laser in the vicinity of the atmospheric pressure interface of a time of flight mass spectrometer. The evaporation process is studied by high repetition rate shadowgraphy experiments elucidating the ballistic evaporation of the sample and revealing strong confinement of the vapor by the ultrasonic field of the trap. Finally, typical mass spectra for pure glycerol/water matrix and lysine as an analyte are presented with and without the addition of trifluoracetic acid, and the ionization mechanism is briefly discussed. The technique is a promising candidate for a reproducible mass spectrometric detection scheme for the field of microfluidics. KW - Ambient mass spectrometry KW - Levitated droplets KW - IR-MALDI PY - 2012 UR - http://link.springer.com/content/pdf/10.1007%2Fs00216-012-6500-y U6 - https://doi.org/10.1007/s00216-012-6500-y SN - 1618-2642 SN - 1618-2650 N1 - Geburtsname von Buurman, Merwe: Albrecht, M. - Birth name of Buurman, Merwe: Albrecht, M. SP - 1 EP - 6(?) PB - Springer CY - Berlin AN - OPUS4-27429 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Konersmann, Rainer T1 - Risiken des Transports von Gefahrgut durch Tunnel, über Brücken und auf offenen Binnenfährschiffen N2 - Eine hoch entwickelte Industriegesellschaft benötigt ein leistungsfähiges Transportnetz. Der Warentransport ist jedoch nicht beliebig gestaltbar. In besonderem Maße betrifft dies den Transport von Gefahrgütern. Viele Transportwege dürfen aus Gründen des Umweltschutzes nicht benutzt werden, da die Risiken im Falle eines Unfalls mit Gefahrgutfreisetzung als zu hoch bewertet werden. Darüber hinaus gibt es Fälle, bei denen eine sorgfältige Abwägung getroffen werden muss, z. B. bei der Benutzung von sensiblen Straßenbauwerken, von Tunneln und Brücken. Einige schwere Unfallereignisse zeigten, dass bei einer Gefahrgutfreisetzung mit der Nichtverfügbarkeit des Verkehrswegs gerechnet werden muss und deshalb längere und mitunter risikoreiche Ersatzrouten befahren werden mussten. Ein spezielles Problem ist der Transport von Gefahrgütern über Binnenwasserstraßen mit einem Fährschiff. Wie dieser hinsichtlich des Transportrisikos zu bewerten ist, versucht der Beitrag zu beantworten. KW - Risikovergleich KW - Tunnel KW - Brücken KW - Binnenfährschiffe PY - 2012 SN - 2191-0073 VL - 2 IS - 11/12 SP - 51 EP - 57 PB - Springer-VDI-Verl. CY - Düsseldorf AN - OPUS4-27430 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Traub, Heike A1 - Jakubowski, Norbert A1 - Tempez, A. T1 - Evaluation of solution doped powder pellets for the analysis of pure copper using PP-TOFMS T2 - 6th International GD Day CY - Paris, France DA - 2012-09-21 PY - 2012 AN - OPUS4-27481 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Kromm, Arne T1 - Exploring the interaction of phase transformation and residual stress during welding by synchrotron diffraction N2 - Controlling the level of mostly detrimental residual stresses already during the welding process would be highly attractive as time and cost consuming post processing may be prevented. Therefore, in this study, the approach using suitable alloy concepts with reduced phase transformation temperatures has been evaluated concerning the interactions between transformation temperature, transformation kinetics and resulting residual stresses. Ideal tools for observing these phenomena in-situ are diffraction techniques. For that purpose, a special setup was developed allowing for localized observation of phase transformation kinetics during a real welding process by energy dispersive synchrotron diffraction (EDXRD). In the present work, this setup was successfully applied for the first time in order to characterize a selection of alloys especially designed for residual stress control. The results demonstrate that in-process observation is highly suitable for characterizing and discussing phase transformation sensitive phenomena like residual stress formation. Furthermore, it was proven that residual stresses can be effectively controlled by means of an adjusted alloy design. KW - Austenite KW - Diffraction KW - Martensite KW - Residual stresses KW - Transformation KW - X-rays PY - 2012 SN - 0043-2288 SN - 1878-6669 VL - 56 IS - 09/10 SP - 2 EP - 11 PB - Springer CY - Oxford AN - OPUS4-27482 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Mente, Tobias A1 - Böllinghaus, Thomas T1 - kModeling of hydrogen distribution in a duplex stainless steel N2 - Quite a number of models for hydrogen distribution in steels and welds have been developed in the past 20 years. They reach from simple analytical models to more complex two and three dimensional finite element simulations. So far, these models have been used to simulate hydrogen distribution in homogeneous microstructure. This paper contributes to numerical simulation of hydrogen distribution in heterogeneous microstructure, e. g. in a duplex stainless steel microstructure consisting of two phase fractions. Under appropriate conditions, such as cathodic protection, it is possible that hydrogen is absorbed leading to material embrittlement and possibly initiating hydrogen assisted cracking. In order to avoid hydrogen assisted cracking in duplex stainless steels, it is of great interest to know more about the diffusion behavior of the ferrite and austenite phase. A numerical model has been developed that operates on the mesoscale and enables simulation of hydrogen transport in the various phases of a metallic material. As a first application of this model, hydrogen distribution in a duplex stainless steel 1.4462, consisting of approximately equal portions of ferrite and austenite, was simulated using the finite element program package ANSYS. The results reflect the dependency of hydrogen distribution on the microstructural alignment of the ferrite and austenite phase fractions. Crack-critical areas can thus be identified, provided the critical strain-hydrogen combination is known for the respective microstructural phase. KW - Finite element KW - Simulation KW - Duplex stainless steel KW - Hydrogen KW - Diffusion KW - Weld metal KW - Microstructure PY - 2012 SN - 0043-2288 SN - 1878-6669 VL - 56 IS - 11/12 SP - 66 EP - 78 PB - Springer CY - Oxford AN - OPUS4-27483 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Rohwetter, Philipp A1 - Lothongkam, Chaiyaporn A1 - Siebler, Daniel T1 - Faseroptische Sensoren zur akustischen Detektion von Teilentladungen in hochspannungstechnischen Anlagen und Betriebsmitteln T2 - VDE-ETG-Tagung Diagnostik Elektrischer Betriebsmittel CY - Fulda, Germany DA - 2012-11-15 PY - 2012 AN - OPUS4-27484 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Rohwetter, Philipp A1 - Kielau, T. A1 - Lothongkam, Chaiyaporn A1 - Heidmann, G. A1 - Habel, Wolfgang T1 - All fibre-optic simultaneous detection of optical and acoustic emission from partial discharges in silicone elastomer T2 - 22nd International Conference on Optical Fiber Sensors OFS 2012 CY - Beijing, China DA - 2012-10-15 PY - 2012 AN - OPUS4-27485 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Gnutzmann, Tanja A1 - Batzdorf, Lisa A1 - Emmerling, Franziska T1 - Crystallization studies utilzing levitated droplets T2 - Fourth Joint BER II and BESSY Users Meeting CY - Berlin, Germany DA - 2012-12-12 PY - 2012 N1 - Geburtsname von Batzdorf, Lisa: Tröbs, L. - Birth name of Batzdorf, Lisa: Tröbs, L. AN - OPUS4-27486 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Wesling, V. A1 - Reiter, R. A1 - Echtermeyer, P. A1 - Heyn, Andreas A1 - Schmigalla, S. ED - Wielage, B. T1 - Untersuchungen zur Herstellung von aufmischungsarmen Plattierungen aus NiCrMo-Legierungen und deren spezifischen Korrosionseigenschaften T2 - 15. Werkstofftechnisches Kolloquium CY - Chemnitz, Germany DA - 2012-09-20 KW - Plattierung KW - Schweißplattierung KW - Nickellegierung KW - CMT KW - Korrosionsschutz KW - Korrosionsprüfung PY - 2012 SN - 978-3-00-039358-7 SN - 1439-1597 N1 - Serientitel: Werkstoffe und werkstofftechnische Anwendungen – Series title: Werkstoffe und werkstofftechnische Anwendungen VL - 47 SP - 235 EP - 245 AN - OPUS4-27487 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Xu, H.-J. A1 - Mack, J. A1 - Wu, D. A1 - Xue, Z.-L. A1 - Descalzo López, Ana Belén A1 - Rurack, Knut A1 - Kobayashi, N. A1 - Shen, Z. T1 - Synthesis and properties of fused-ring-expanded porphyrins that were core-modified with group 16 heteroatoms N2 - The synthesis of a series of novel core-modified and fused-ring-expanded tetraphenylporphyrins is reported. Theoretical calculations and magnetic circular dichroism (MCD) and fluorescence spectroscopic measurements were used to analyze the effect of core modification with Group 16 oxygen, sulfur, selenium, and tellurium atoms on the optical properties and electronic structures of the porphyrins. Marked redshifts of the Q and B bands and accelerated intersystem-crossing rates were observed, thus making these compounds potentially suitable for use in a variety of applications. The scope for further fine-tuning of these optical properties based on additional structural modifications, such as the incorporation of fused benzene rings to form ABAB structures by using a thiophene precursor with a fused bicyclo[2.2.2]octadiene ring and the introduction of various substituents onto the meso-phenyl rings, is also examined. KW - Density functional calculations KW - Fluorescence KW - MCD spectroscopy KW - Porphyrinoids KW - Ring expansion PY - 2012 U6 - https://doi.org/10.1002/chem.201200956 SN - 0947-6539 SN - 1521-3765 VL - 18 IS - 52 SP - 16844 EP - 16867 PB - Wiley-VCH Verl. CY - Weinheim AN - OPUS4-27488 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Seefeldt, Henrik A1 - Braun, Ulrike A1 - Wagner, M.H. T1 - Residue stabilization in the fire retardancy of wood-plastic composites: combination of ammonium polyphosphate, expandable graphite, and red phosphorus N2 - Combinations of different common flame retardants in wood–plastic composites (WPCs) are tested to identify synergistic or antagonistic effects with the goal of improving the fire performance of WPCs. Flame retardants investigated are expandable graphite (EG), ammonium polyphosphate (APP), and red phosphorus (RP) and combinations of two of them are used. The fire behavior is studied by cone calorimetric measurements. Additional thermogravimetry is used for further investigations. The fire tests show that EG has the highest potential for flame retardancy, but due to its expansion it cracks the formed residue layer. Combinations of EG with RP or with high amounts of APP are able to suppress this cracking. KW - Flame retardance KW - Halogen free KW - Renewable resources KW - Wood-plastic composites KW - WPC PY - 2012 U6 - https://doi.org/10.1002/macp.201200119 SN - 1022-1352 SN - 1521-3935 VL - 213 IS - 22 SP - 2370 EP - 2377 PB - Wiley-VCH Verl. CY - Weinheim AN - OPUS4-27489 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Niederleithinger, Ernst A1 - Weller, Andreas A1 - Lewis, R. T1 - Evaluation of geophysical techniques for dike inspection N2 - After some river embankment failures during recent floods in Germany, major investigation and improvement programs for river embankments have been implemented. Presently, the investigation mainly relies on existing documentation, visual inspection, and drilling and sampling. Geophysical techniques, which are applied non-destructively from the surface, have the potential to cover the gaps between sampling points and to enhance the reliability of subsurface information. This paper describes the evaluation results for resistivity, electromagnetic, seismic and GPR techniques acquired at a test site along the Mulde River in eastern Germany. The work was carried out under the government funded project DEISTRUKT. Each geophysical method has its own specific advantages and limitations. Keeping the requirements posed by current German guidelines for river embankments in mind, 2–D electrical resistivity tomography (ERT) is the method of first choice. However, all geophysical results have to be calibrated carefully using information, such as material properties and depth of structures, determined from boreholes. Although some recommendations are provided here, a set of detailed recommendations have been compiled in a handbook. KW - Dikes KW - Embankments KW - Flood KW - Geophysics KW - Geotechnics KW - Evaluation PY - 2012 U6 - https://doi.org/10.2113/JEEG17.4.185 SN - 1083-1363 VL - 17 IS - 4 SP - 185 EP - 195 PB - EEGS CY - Denver, Colo., USA AN - OPUS4-27490 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Rabe, Torsten T1 - Technische Keramik als Innovationstreiber T2 - Sitzung der Fachgruppe Integrierte Schichtschaltungen des Zentralverbandes Elektrotechnik- und Elektronikindustrie CY - Berlin, Germany DA - 2012-11-29 PY - 2012 AN - OPUS4-27442 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Koepsel, D. A1 - Bukket, J. A1 - Chopnet, M.-H. A1 - Klouzek, J. A1 - Maurina, S. A1 - Nemec, L. A1 - Oran, M. A1 - Yoshida, N. A1 - Gaber, Martin T1 - Activities of ICG-TC14 in last years T2 - 11th ESG Conference CY - Maastricht, Netherlands DA - 2012-06-04 PY - 2012 AN - OPUS4-27443 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - THES A1 - Eichler, Thorsten T1 - Zu den sekundären Schutzmechanismen beim kathodischen Korrosionsschutz von Stahl in alkalischen Medien N2 - Die vorliegende Arbeit behandelt die Auswirkungen der sekundären Schutzmechanismen beim kathodischen Korrosionsschutz von Stahl in alkalischen Medien. Auf der Grundlage von Untersuchungen in künstlichen Betonporenlösungen wird ein Modell zur Wirkungsweise der sekundären Schutzmechanismen entwickelt. Die Ergebnisse belegen die wesentliche Bedeutung des Verhältnisses zwischen Chlorid- und Hydroxidionenkonzentration im Elektrolyten bezüglich der im System verbleibenden Korrosionsrate nach Abschalten des Schutzstroms sowie hinsichtlich der kathodischen Polarisierbarkeit des Schutzobjektes. Es konnte gezeigt werden, dass die Verringerung des Verhältnisses zwischen Chlorid- und Hydroxidionenkonzentration auf einen spezifischen Grenzwert zur nachhaltigen Verringerung der Korrosionsrate, um einen Faktor zwischen 10 und 1000, führend kann. Weiterhin belegen die Ergebnisse, dass durch den kathodischen Korrosionsschutz nur in Ausnahmefällen die Repassivierung des Schutzobjektes zu beobachten ist. Der zweite Teil der Untersuchungen befasst sich mit den messbaren Auswirkungen kathodischer Langzeitpolarisation auf das Korrosionsverhalten von Stahl in chloridhaltigen Mörtelprobekörpern. Hier konnte und praxisnahen Betriebsbedingungen gezeigt werden, dass signifikante Migrationseffekte auch bei verhältnismäßig geringer Feldstärke auftreten können. Weiterhin konnte die kathodische Polarisationskinetik als Funktion der während der Polarisation geflossenen Ladungsmenge dargestellt werden.---------------------------------------------------------------------------------------------------------------------------- The present work discusses the impact of the secondary protection mechanisms during cathodic protection of steel in alkaline media. On the basis of investigations in artificial concrete pore solutions a model was developed concerning the effectiveness of the secondary protection mechanisms. The results support the essential significance of the ratio between chloride and hydroxide ion in the electrolyte concerning the in the system remaining corrosion rate after switching off the protection current as well as regarding the polarisability of the object to be protected. It could be shown, that reducing the ratio between chloride and hydroxide ion concentration to a specific value results in a sustaining reduction of the remaining corrosion rate, of a factor between 10 and 1000. Further on the results prove that repassivation by cathodic protection was only observable in exceptional cases. The second part of the investigations deals with the measurable effects of cathodic long term polarisation on the corrosion behaviour of steel in chloride containing mortar specimens. It was possible to show under nearly practical conditions, that significant migration effects can occur even at comparably low field strengths. Further on the cathodic polarisation kinetics could be presented as function of the charge flown during polarisation. KW - Kathodischer Korrosionsschutz KW - Instandsetzung KW - Instandhaltung KW - Chlorinduzierte Korrosion KW - Stahlbeton KW - Elektrochemische Instandsetzungsverfahren KW - Lochkorrosion KW - Chlorid KW - Beton PY - 2012 SP - 1 EP - 169 CY - Aachen AN - OPUS4-27444 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Nofz, Marianne A1 - Schulz, Wencke A1 - Sojref, Regine A1 - Dörfel, Ilona A1 - Feigl, Michael T1 - Preparation and barrier properties of sol-gel alumina coatings on high temperature alloys T2 - Particoat CY - Costa Teguise, Spain DA - 2012-10-15 PY - 2012 AN - OPUS4-27445 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Nofz, Marianne A1 - Dreßler, Martin A1 - Feigl, Michael A1 - Schulz, Wencke A1 - Sojref, Regine T1 - Preparation and properties of sol-gel alumina coatings on metals for high temperature applications T2 - 10th CMCee CY - Dresden, Germany DA - 2012-05-20 PY - 2012 AN - OPUS4-27446 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Grätz, Rainer T1 - Europäische Richtlinien und Normen auf dem Gebiet des Explosionsschutzes T2 - VDI Wissensforum "Explosionsschutz beim Umgang mit brennbaren Flüssigkeiten und Gasen" CY - Düsseldorf, Germany DA - 2012-12-04 PY - 2012 AN - OPUS4-27447 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Grätz, Rainer T1 - Absichern von Anlagen - Auswirkungsbegrenzung T2 - VDI Wissensforum "Explosionsschutz beim Umgang mit brennbaren Flüssigkeiten und Gasen" CY - Düsseldorf, Germany DA - 2012-12-04 PY - 2012 AN - OPUS4-27448 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Grätz, Rainer T1 - Normung im Bereich des Explosionsschutzes: - nicht-elektrisch - T2 - DECHEMA-Weiterbildungskurs "Grundlagen und rechtliche Anforderungen des Explosionsschutzes" CY - Frankfurt am Main, Germany DA - 2012-11-14 PY - 2012 AN - OPUS4-27450 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Zhukovskiy, M. A1 - Jaenisch, Gerd-Rüdiger A1 - Deresch, Andreas A1 - Podoliako, S.V. T1 - Mathematical modeling of radiography experiments N2 - An approach is presented to construct operators for transforming the characteristics of incident radiation to transmitted radiation, as well as operators for transforming the transmitted radiation to measured values. Simu-lating the radiation transport is based on Monte Carlo modeling of the interaction of X-ray photons and electrons with matter. The proposed method permits to construct, for instance, the operator connecting the initial radiation spectrum with the absorbed photon energy penetrating a given object. The elaborated approach provides the possibility of effective mathematical modeling of radiation techniques such as radiography, treating complex multi-component objects. Moreover, the method can be used to construct the operator equation for solving in-verse problems, e.g. the reconstruction of the initial radiation spectrum using simple experimental measure-ments. Comparison with some experimental measurements is presented. T2 - 18th WCNDT - World conference on nondestructive testing CY - Durban, South Africa DA - 2012-04-16 KW - Radiography KW - Operator of radiation transformation KW - Mathematical modeling KW - Spectrum reconstruction PY - 2012 SN - 978-0-620-52872-6 SP - 1 EP - 7 (Paper 305) AN - OPUS4-27401 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Zhukovskiy, M. A1 - Jaenisch, Gerd-Rüdiger A1 - Deresch, Andreas A1 - Uskov, R.V. T1 - Monte Carlo modeling of electron transport using CUDA technology N2 - Statistical algorithms are presented for modeling the interaction processes between electrons and matter. A software implementation has been developed for hybrid supercomputers making use of NVIDIA© CUDA© technology. Standard Monte Carlo schemes are modified for effectively exploiting the parallel computing capabilities of graphical processors. The model of individual collisions (MIC) is used to describe the interaction of electrons with atoms. This model does not include the approximations assumed in multiple collision theory or the continuous slow down approach with the Landau theory for energy-loss fluctuations. The distributions of electron characteristics are obtained from tabulated electron cross section data. The examples discussed in this paper demonstrate the applicability of the algorithms to investigating the interaction of electrons with X-ray tube targets producing Bremsstrahlung. The proposed technique can be used for mathematical modeling in radiography. T2 - 18th WCNDT - World conference on nondestructive testing CY - Durban, South Africa DA - 2012-04-16 KW - Electron transport KW - Monte-Carlo method KW - Mathematical modeling KW - Graphical Processor PY - 2012 SN - 978-0-620-52872-6 SP - 1 EP - 8 (Paper 89) AN - OPUS4-27402 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Lüth, Peter T1 - Vorstellung und Erläuterung des Fallhammer-Ringversuches - Auswertung T2 - Symposium der AG "Sprengstoff" der Kommission Kriminalwissenschaft und - technik/Erkennungsdienst (KKWT/ED) CY - Berlin, Germany DA - 2012-05-08 PY - 2012 AN - OPUS4-27403 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Heunisch, Andreas A1 - Schulz, Bärbel A1 - Rabe, Torsten T1 - LTCC antenna array with integrated liquid crystal phase shifter for satellite communication T2 - CICMT 2012 - 8th International conference on ceramic interconnect & ceramic microsystems technologies CY - Erfurt, Germany DA - 2012-04-16 KW - LTCC multilayer KW - Liquid crystals KW - Cavities KW - Pressure assisted sintering PY - 2012 SP - 000097 EP - 000102 (Session TP 1 / TP 15) AN - OPUS4-27404 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - RPRT A1 - Völzke, Holger A1 - Wolff, Dietmar T1 - Extended storage collaboration program international subcommittee report: International perspectives on technical data gaps associated with extended storage and transportation of used nuclear fuel PY - 2012 VL - 1026481 IS - Chapter 2.1, 3.1, 4.1 SP - 2-1 - 2-5, 3-1 - 3-4, 4-1 - 4-3 CY - Palo Alto, CA, USA ET - Final report AN - OPUS4-27405 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Drzymala, Sarah A1 - Marten, S. A1 - Risch, St. A1 - Koch, Matthias T1 - Optimized Extraction and Clean-up of Zearalenone from Edible Oils T2 - 4th Potsdam Colloquium on Bioanalysis CY - Potsdam, Germany DA - 2012-11-08 PY - 2012 AN - OPUS4-27406 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Neitsch, Marcel A1 - Stephan, Martina T1 - Revision 3 der BAM-GGR 001 T2 - ERFA-Verpackungen CY - Berlin, Germany DA - 2012-09-12 PY - 2012 AN - OPUS4-27407 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Neitsch, Marcel T1 - Dokumentation von Audits und Überwachungsprüfungen T2 - Informationsaustausch Qualitätssicherung und Überwachung bei der Herstellung von Gefahrgutverpackungen, BAM CY - Berlin, Germany DA - 2012-09-11 PY - 2012 AN - OPUS4-27408 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Neitsch, Marcel T1 - Witness-Audits und Prüfungen an Gefahrgutverpackungen: 4 aktuelle Fälle T2 - Informationsaustausch Qualitätssicherung und Überwachung bei der Herstellung von Gefahrgutverpackungen, BAM CY - Berlin, Germany DA - 2012-09-11 PY - 2012 AN - OPUS4-27409 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Neitsch, Marcel T1 - Forschungsvorhaben: Bewertung der Wirksamkeit der Prüf- und Zulassungsprozeduren für Gefahrgutverpackungen in Deutschland T2 - ERFA-Verpackungen, BAM CY - Berlin, Germany DA - 2012-09-12 PY - 2012 AN - OPUS4-27410 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Bresch, Harald T1 - Technical problems in aerosol generation and monitoring the size distribution for in vito and air-liquid-interface in vito tests T2 - Expert consultation meeting of the OECD-WPMN streering group 7 on alternative test methods in nanotoxicology CY - Paris, France DA - 2012-03-27 PY - 2012 AN - OPUS4-27461 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Bresch, Harald T1 - Production and characterization of nanoscaled aerosols T2 - JRC-Enlargement Workshop on the applications of nanobiotechnologies CY - Ispra, Italy DA - 2012-12-04 PY - 2012 AN - OPUS4-27462 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Bresch, Harald A1 - Reinhardt, F. A1 - Beckhoff, B. A1 - Pollakowski, B. A1 - Kolbe, M. A1 - Osán, J. A1 - Török, S. A1 - Schoengen, M. A1 - Nowak, S. A1 - Dousse, J.-C. A1 - Seeger, Stefan A1 - Waldschläger, U. T1 - Qualification of quantitative grazing incidence X-ray fluorescence for the analysis of nano-particular surface contamination T2 - European Conference on X-Ray Spectrometry CY - Vienna, Austria DA - 2012-06-18 PY - 2012 AN - OPUS4-27463 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Ramge, Peter A1 - Kühne, Hans-Carsten T1 - Natursteinersatzmassen für denkmalgeschütztes Kulturgut T2 - XVI. Workshop über die CHarakterisierung von feinteiligen und porösen Festkörpern CY - Bad Soden, Germany DA - 2012-11-13 PY - 2012 AN - OPUS4-27464 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Ramge, Peter A1 - Kühne, Hans-Carsten T1 - Untersuchungen zur Porenstruktur von Natursteinersatzmassen für Anwendungen im denkmalgeschützten Bereich T2 - XVI. Workshop über die Charakterisierung von feinteiligen und porösen Festkörpern CY - Bad Soden, Germany DA - 2012-11-13 PY - 2012 AN - OPUS4-27465 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Bismarck, A. A1 - Carreyette, Shuijin A1 - Fontana, Quentin P. A1 - Greenhalgh, E. A1 - Jacobsson, P. A1 - Johansson, P. A1 - Kalinka, Gerhard A1 - Wienrich, Malte T1 - Multifunctional Epoxy Resin for Structural Supercapacitors T2 - European Conference on Composite Materials 15 CY - Venice, Italy DA - 2012-06-24 PY - 2012 AN - OPUS4-27466 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Wienrich, Malte A1 - Kalinka, Gerhard A1 - Greenhalgh, E. A1 - Carreyette, Shuijin A1 - Bistritz, Martina A1 - Shirshova, Natasha A1 - Houllé, Matthieu A1 - Bismarck, A. T1 - IMPACT OF IONIC LIQUID ON THE MECHANICAL PERFORMANCE OF MATRIX POLYMER FOR FIBRE REINFORCED MATERIALS FOR ENERGY STORAGE T2 - ECCM 15 - European Conference on Composite Materials CY - Venice, Italy DA - 2012-06-24 PY - 2012 AN - OPUS4-27467 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Habel, Wolfgang T1 - Current and intended activities in development of standards and guidelines for the use of fibre-optic sensors T2 - Jahresmeeting der International SEAFOM Group "Subsea Fiber Optic Monitoring" CY - Amsterdam, Netherlands DA - 2012-12-04 PY - 2012 AN - OPUS4-27468 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Schneider, Rudolf A1 - Carvalho, José Joao A1 - Pereira, P. M. R. A1 - Silva, S. A1 - Cavaleiro, J. A. S. A1 - Fernandes, R. A1 - Tomè, J. P. C. T1 - Albumin and monoclonal antibody conjugated porphyrin: synthesis, characterization and biological potential against human bladder cancer cell line T2 - 3rd National Meeting on Medicinal Chemistry of the Portuguese Chemical Society SPQ CY - Aveiro, Portugal DA - 2012-11-28 PY - 2012 AN - OPUS4-27469 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Schneider, Rudolf A1 - Anschütz, Franziska A1 - Franke, M. A1 - Bräutigam, P. A1 - Ondruschka, B. T1 - Environment Protection with Innovative Cavitation Technologies - Degradation of 17a-Ethynyl Estradiol by Hydrodynamic-Accoustic-Cavitation T2 - International Conference of Environment 2012 (ICENV) - Green Technology for Sustainable Tomorrow CY - Penang, Malaysia DA - 2012-12-11 PY - 2012 AN - OPUS4-27470 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Schneider, Rudolf A1 - Anschütz, Franziska A1 - Franke, M. A1 - Bräutigam, P. A1 - Ondruschka, B. T1 - Degradation of carbamazepine in environmentally relevant concentrations in water by Hydrodynamic-Acoustic-Cavitation (HAC) T2 - 3rd International Conference on Sustainable Pharmacy CY - Osnabrück, Germany DA - 2012-11-19 PY - 2012 AN - OPUS4-27471 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Subaric-Leitis, Andreas T1 - Unsicherheit und Vergleichbarkeit von Prüfergebnissen T2 - 266. PTB-Seminar (gemeinsam mit DAkkS und BAM) "Berechnung der Messunsicherheit - Empfehlungen für die Praxis" CY - Berlin, Germany DA - 2012-03-20 PY - 2012 AN - OPUS4-27473 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Müller, Bernd R. A1 - Lange, Axel A1 - Kupsch, Andreas A1 - Hentschel, Manfred P. T1 - Werkstoffcharacterisierung mittels Röntgen-Refraktions- und Weitwinkel- Topographie T2 - Jubiläumssitzung 50 Jahre DGZfP-Arbeitskreis Berlin CY - Berlin, Germany DA - 2012-12-11 PY - 2012 AN - OPUS4-27474 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Kupsch, Andreas A1 - Lange, Axel A1 - Müller, Bernd R. A1 - Hentschel, Manfred P. T1 - Scanning refraction enhanced X-ray darkfield radiography T2 - 4th Joint BER II and BESSY II User Meeting 2012 CY - Berlin, Germany DA - 2012-12-13 PY - 2012 AN - OPUS4-27475 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Richter, Janine A1 - Fettig, Ina A1 - Philipp, Rosemarie A1 - Jakubowski, Norbert T1 - Determination of Tributyltin (TBT) in whole water samples at a concentration level required by the EU Water Framework Directive (WFD) with GC-ICP-MS T2 - ENV08 progress meeting CY - Berlin, Germany DA - 2012-10-31 PY - 2012 AN - OPUS4-27476 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Balski, Matthias A1 - Gonzàlez-Gago, C. A1 - Svatko, Zhanna A1 - Kipphardt, Heinrich A1 - Jakubowski, Norbert A1 - Panne, Ulrich T1 - Den Verunreinigungen im Silicium auf der Spur T2 - 23. ICPMS Anwendertreffen und 10. Symposium Massenspektrometrische Verfahren der Elementspurenanalyse CY - Tulln an der Donau, Austria DA - 2012-09-10 PY - 2012 AN - OPUS4-27477 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Batzdorf, Lisa A1 - Wenzel, Klaus-Jürgen A1 - Panne, Ulrich A1 - Emmerling, Franziska T1 - Reorganization of a Zn Oxalate Bipyridine Structure at high Temperatures T2 - Fourth Joint BER II and BESSY II Users Meeting CY - Berlin, Germany DA - 2012-12-12 PY - 2012 N1 - Geburtsname von Batzdorf, Lisa: Tröbs, L. - Birth name of Batzdorf, Lisa: Tröbs, L. AN - OPUS4-27478 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Müller, Larissa A1 - Techritz, Sandra A1 - Jakubowski, Norbert A1 - Hösl, Simone A1 - Roos, P.H. T1 - Development and application of new metal-based diagnosis methods T2 - 23. ICPMS Anwendertreffen und 10. Symposium Massenspektrometrische Verfahren der Elementspurenanalyse CY - Tulln an der Donau, Austria DA - 2012-09-10 PY - 2012 N1 - Geburtsname von Müller, Larissa: Wäntig, L. - Birth name of Müller, Larissa: Wäntig, L. N1 - Geburtsname von Hösl, Simone: Hardt, S. - Birth name of Hösl, Simone: Hardt, S. AN - OPUS4-27479 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Traub, Heike A1 - Drescher, Daniela A1 - Giesen, Charlotte A1 - Kneipp, Janina A1 - Jakubowski, Norbert T1 - LA-ICP-MS zur Analyse einzelner Zellen T2 - 23. ICPMS Anwendertreffen und 10. Symposium Massenspektrometrische Verfahren der Elementspurenanalyse CY - Tulln an der Donau, Austria DA - 2012-09-10 PY - 2012 AN - OPUS4-27480 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Hösl, Simone A1 - Jakubowski, Norbert A1 - Scheler, Ch. A1 - Sauter, G. A1 - Linscheid, M. A1 - Scheler, Ch. A1 - Müller, Larissa A1 - Neumann, B. T1 - Development and application of metal-tagged antibodies for efficient diagnostic methods T2 - 11th European Workshop on Lasern Ablation CY - Gijón, Spain DA - 2012-06-18 PY - 2012 N1 - Geburtsname von Hösl, Simone: Hardt, S. - Birth name of Hösl, Simone: Hardt, S. AN - OPUS4-27351 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Lingott, Jana A1 - Jakubowski, Norbert A1 - Panne, Ulrich A1 - Richter, S. T1 - Interaction of gadolinium based MRI contrast agents with plants, analysed with HPLC-IPC-MS T2 - Anwendertreff Plasmaspektrometrie 2012 CY - Berlin, Germany DA - 2012-02-27 PY - 2012 AN - OPUS4-27352 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Jakubowski, Norbert A1 - Giesen, Charlotte A1 - Moreno-Gordaliza, E. A1 - Esteban-Fernández, D. A1 - Lehmann, K. A1 - Canas, B. A1 - Tejedor, A. A1 - Scheler, Ch. A1 - Linscheid, M. A1 - Gómez-Gómez, M. M. A1 - Lázaro-Fernández, A. T1 - Interaction of metals with biomolecules: do we have the proper tools? T2 - "Speciation Seminar" Congress Centre CY - Montpellier, France DA - 2012-05-29 PY - 2012 AN - OPUS4-27353 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Jakubowski, Norbert A1 - Müller, Larissa A1 - Giesen, Charlotte A1 - Hösl, Simone A1 - Techritz, Sandra A1 - Roos, Albrecht A1 - Scheler, Ch. T1 - LA-ICP-MS an new tool for development of methods for imaging of biological and clinical samples T2 - Projektbesprechung Metallproteins CY - Aberdeen, Scotland DA - 2012-11-14 PY - 2012 N1 - Geburtsname von Müller, Larissa: Wäntig, L. - Birth name of Müller, Larissa: Wäntig, L. N1 - Geburtsname von Hösl, Simone: Hardt, S. - Birth name of Hösl, Simone: Hardt, S. AN - OPUS4-27354 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Zerbst, Uwe T1 - Fracture and Crack Propagation in Weldments. A Fracture Mechanics Perspective T2 - ESIS TC 1 Workshop on "Structural Integrity of Weldments" CY - Freiburg, Germany DA - 2012-12-06 PY - 2012 AN - OPUS4-27355 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Zerbst, Uwe A1 - Klinger, Christian T1 - Anmerkungen zur Auslegung und zum sicheren Betrieb von Radsatzwellen aus der Sicht von Betriebsfestigkeit und Bruchmechanik T2 - Schienenfahrzeugtagung 2012 (Rad-Schiene) CY - Dresden, Germany DA - 2012-09-12 PY - 2012 AN - OPUS4-27356 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Scheid, Marc A1 - Snoeys, J. A1 - Bunse, R. T1 - Neues aus den Normenausschüssen zum Staubexplosionsschutz T2 - VDI-Fachtagung "Sichere Handhabung brennbarer Stäube" CY - Nuremberg, Germany DA - 2012-11-06 PY - 2012 AN - OPUS4-27357 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Menrad, Andreas A1 - Goedecke, Thomas T1 - Der Vergleich von unterschiedlichen Werkstoffkennwerten mit der Fallprüfung von Verpackungen aus HDPE nach der Vorlagerung mit Chemikalien T2 - Polymerwissenschaftliches Seminar - TU Berlin CY - Berlin, Germany DA - 2012-12-05 PY - 2012 AN - OPUS4-27358 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Gumenyuk, Andrey A1 - Graf, Benjamin A1 - Rethmeier, Michael T1 - Potential for repair welding technology based on laser metal deposition for chemical industry T2 - Fitness for Service in Chemical Industries CY - Aswan, Egypt DA - 2012-11-25 PY - 2012 AN - OPUS4-27359 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Burkert, Andreas A1 - Wilbert, Hans-Peter T1 - Edelstahl Rostfrei - Alternativen zu den Standardausteniten T2 - VDMA, Fachabteilung sterile Verfahrenstechnik - Technische Sitzung CY - Frankfurt am Main, Germany DA - 2012-12-07 PY - 2012 AN - OPUS4-27360 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Grätz, Rainer T1 - Rechtliche Anforderungen des Explosionsschutzes: Einordnung des Explosionsschutzes im System der gesetzlichen Regelungen T2 - DECHEMA-Weiterbildungskurs "Grundlagen und rechtliche Anforderungen des Explosionsschutzes" CY - Frankfurt am Main, Germany DA - 2012-11-14 PY - 2012 AN - OPUS4-27452 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Eichler, Thorsten A1 - Isecke, Bernd T1 - Kathodischer Korrosionsschutz von Stahl im Beton - Möglichkeiten und Grenzen mit praktischen Beispielen T2 - 23. Baupraktisches Informationsseminar für Auftraggeber, Planer und Ausführende von Instandsetzungsmaßnahmen CY - Bad Nauheim, Germany DA - 2012-11-07 KW - Kathodischer Korrosionsschutz KW - Instandsetzung KW - Instandhaltung KW - Chloridinduzierte Korrosion KW - Stahlbeton PY - 2012 SP - 15 EP - 19 AN - OPUS4-27453 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Bettge, Dirk A1 - Klinger, Christian A1 - Häcker, Ralf A1 - Heckel, Thomas A1 - Gohlke, Dirk T1 - Schadensanalyse an Komponenten von Schienenfahrzeugen T2 - Erfahrungsaustausch der Sachverständigen (Druckbehälteranlagen im Eisenbahnwesen) CY - Kassel, Germany DA - 2012-04-17 PY - 2012 AN - OPUS4-27454 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Torge, Manfred A1 - Brödner, Doris A1 - Feldmann, Ines A1 - Krug, Sonja A1 - Mathies, Helena A1 - Mull, Birte T1 - Analytical methods to determine wood protective agents in a World Heritage site church T2 - 6. N.iKe.-Workshop Segen und Fluch - Biozide CY - Berlin, Germany DA - 2012-11-19 PY - 2012 AN - OPUS4-27455 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Eichler, Thorsten A1 - Isecke, Bernd ED - Gieler-Breßmer, S. T1 - Die DIN EN 15257 und ihre Bedeutung für Bauherren, Planer und Ausführende T2 - 10. Symposium Kathodischer Korrosionsschutz von Stahlbetonbauwerken CY - Esslingen, Germany DA - 2012-11-22 KW - Kathodischer Korrosionsschutz KW - Instandsetzung KW - Chloridinduzierte Korrosion KW - Stahlbeton KW - Normung KW - Regelwerke KW - Zertifizierung KW - Ausbildung PY - 2012 SN - 978-3-943563-02-3 SP - 5 EP - 9 AN - OPUS4-27456 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Bettge, Dirk A1 - Kranzmann, Axel A1 - Pfennig, Anja T1 - Analyse von Korrosionsschichten und Folgerungen an Beispielen aus der Energietechnik T2 - Energietage Cottbus CY - Cottbus, Germany DA - 2012-06-05 PY - 2012 AN - OPUS4-27457 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Mull, Birte T1 - Comparison of diffent air sampling adsorbents for a screening methods for SVOC T2 - Healthy Buildings 2012 10th International Conference CY - Brisbane, Australia DA - 2012-07-08 PY - 2012 AN - OPUS4-27458 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Mull, Birte T1 - Neue Verfahren zur Probenahme von ausgewählten SVOCs aus der Luft T2 - 6. N.i.Ke.-Workshop Segen und Fluch - Biozide: I. Verwendung, Analytik, Bewertung CY - Berlin, Germany DA - 2012-11-19 PY - 2012 AN - OPUS4-27459 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Jann, Oliver T1 - Emission von Bioziden aus Materialien in die Luft T2 - 6. N.i.Ke.-Workshop "Segen und Fluch - Biozide: Verwendung, Analytik, Bewertung" CY - Berlin, Germany DA - 2012-11-19 PY - 2012 AN - OPUS4-27460 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Wilsch, Gerd A1 - Schaurich, Dieter T1 - Laser induced breakdown spectroscopy for fast analysis of ingress profiles of ions on concrete T2 - Structural Faults & Repair 2012 - 14th International Conference and Exhibition CY - Edinburgh, Scotland DA - 2012-07-03 PY - 2012 AN - OPUS4-27411 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Wilsch, Gerd A1 - Schalk, Heike A1 - Bienert, Klaus A1 - Molkenthin, A. A1 - Goldschmidt, Sebastian A1 - Niederleithinger, Ernst T1 - Quality Control of Hydrophobic Coatings with an Integrated Marker Element by laser Induced Breakdown Spectroscopy (LIBS) T2 - 2nd International Conference on Microstructural-related Durability of Cementitious Composites CY - Amsterdam, Netherlands DA - 2012-04-11 PY - 2012 AN - OPUS4-27412 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Steiger, Thomas T1 - Implementation of the ISO Guide 34 into the Quality Management System of BAM T2 - Annual Meeting EURAMET TC-Q CY - Warsaw, Poland DA - 2012-03-08 PY - 2012 AN - OPUS4-27413 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Wiggenhauser, Herbert A1 - Wilsch, Gerd A1 - Schaurich, Dieter T1 - Laser-Induced Breakdown Spectroscopy for Fast Analysis of Ingress Profiles of Ions on Concrete T2 - NDE/NDT for Highways and Bridges: Structural Materials Technology (SMT) CY - New York City, NY, USA DA - 2012-08-21 PY - 2012 AN - OPUS4-27415 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Wilsch, Gerd A1 - Bohling, C. A1 - Molkenthin, A. A1 - Schaurich, Dieter T1 - Mobile LIBS device for the investigation of building materials T2 - 7th International Conference on Laser Induced Breakdown Spectroskopy (LIBS 2012) CY - Luxor, Egypt DA - 2012-09-29 PY - 2012 AN - OPUS4-27416 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Reinsch, Stefan A1 - Müller, Ralf A1 - Erfurt, Darja A1 - Goedecke, Caroline T1 - Processing and sinter-crystallization of alkaline earth silicate glass powders T2 - 11th ESG Conference CY - Maastricht, Netherlands DA - 2012-06-03 PY - 2012 AN - OPUS4-27417 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Meszaros, Robert A1 - Reinsch, Stefan A1 - Winkel, A. A1 - Wondraczek, L. A1 - Fey, T. A1 - Travitzky, N. A1 - Grell, P. A1 - Müller, Ralf T1 - Sinterung 3D-gedruckter "Bioglas"/Hydroxylapatit Kompsoite T2 - DKG-Jahrestagung 2012 CY - Nuremberg, Germany DA - 2012-03-05 PY - 2012 AN - OPUS4-27418 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Müller, Ralf T1 - Glaspulver - Processing, Effekte, Möglichkeiten T2 - 1. Fachtagung "Starkes Glas - Herausforderungen für zukünftige Glasanwendungen" CY - Weimar, Germany DA - 2012-05-07 PY - 2012 AN - OPUS4-27419 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Müller, Ralf T1 - Volatile Concentration and Mobility measured by VHE-MS T2 - International Conference on Materials Science CY - Ulaanbaatar, Mongolia DA - 2012-08-20 PY - 2012 AN - OPUS4-27420 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CHAP A1 - Mangelsdorf, Axel A1 - Portugal-Perez, A. A1 - Wilson, J. S. ED - Cadot, O. ED - Malouche, M. T1 - Do better standards facilitate exports? Evidence from China PY - 2012 SN - 978-1-907142-53-6 IS - Part II / Chapter 7 SP - 141 EP - 154 CY - Washington, DC, USA AN - OPUS4-27551 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Köppe, Enrico A1 - Bartholmai, Matthias A1 - Prager, Jens T1 - Device concept for the generation of guided waves for early damage detection N2 - In this study a method for early damage detection is investigated based on the directed excitation and measuring of Lamb waves (guided waves). The objective is to make a statement about the practicability of a Lamb wave generator (LWG) and about the application relevant parameters (specimen materials and dimensions, wave characteristics, excitation, transmission und reflection). Guided waves enable an effective differentiation of structural and defective indications as well as a classification of different defect types. For the investigations, a LWG was developed which combines the advantages of the single excitation of a piezoelectric actuator and the possibility of a group excitation. Algorithms were developed to identify and analyze damage patterns (cracks, wholes, weakening). T2 - Eurosensors XXVI CY - Kraków, Poland DA - 2012-09-09 KW - Lamb wave KW - Guided wave KW - DDS KW - SHM KW - Early damage detection PY - 2012 U6 - https://doi.org/10.1016/j.proeng.2012.09.363 SN - 1877-7058 VL - 47 SP - 1185 EP - 1188 PB - Elsevier AN - OPUS4-27552 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Krüger, Oliver A1 - Kalbe, Ute A1 - Berger, Wolfgang A1 - Nordhauß, Katja A1 - Christoph, Gabriele A1 - Walzel, Hans-Peter T1 - Comparison of batch and column tests for the elution of artificial turf system components N2 - Synthetic athletic tracks and turf areas for outdoor sporting grounds may release contaminants due to the chemical composition of some components. A primary example is that of zinc from reused scrap tires (main constituent, styrene butadiene rubber, SBR), which might be harmful to the environment. Thus, methods for the risk assessment of those materials are required. Laboratory leaching methods like batch and column tests are widely used to examine the soil–groundwater pathway. We tested several components for artificial sporting grounds with batch tests at a liquid to solid (LS) ratio of 2 L/kg and column tests with an LS up to 26.5 L/kg. We found a higher zinc release in the batch test eluates for all granules, ranging from 15% higher to 687% higher versus data from column tests for SBR granules. Accompanying parameters, especially the very high turbidity of one ethylene propylene diene monomer rubber (EPDM) or thermoplastic elastomer (TPE) eluates, reflect the stronger mechanical stress of batch testing. This indicates that batch test procedures might not be suitable for the risk assessment of synthetic sporting ground components. Column tests, on the other hand, represent field conditions more closely and allow for determination of time-dependent contaminants release. PY - 2012 U6 - https://doi.org/10.1021/es301227y SN - 0013-936X SN - 1520-5851 VL - 46 IS - 24 SP - 13085 EP - 13092 PB - ACS Publ. CY - Washington, DC AN - OPUS4-27555 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Wilke, Olaf A1 - Richter, Matthias A1 - Brödner, Doris T1 - Emission study of furniture boards for the next version of the German eco label 'Blue Angel' for wood and wooden products (RAL-UZ 38) T2 - Healthy Buildings 2012 - 10th International conference CY - Brisbane, Australia DA - 2012-07-08 KW - Certification/labelling KW - Sources/emissions KW - VOC KW - Emission studies KW - Healthy homes and buildings PY - 2012 SN - 978-1-921897-40-5 SP - 1 EP - 2 (1D.8) AN - OPUS4-27559 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Dabah, Eitan A1 - Kannengießer, Thomas A1 - Böllinghaus, Thomas A1 - Eliezer, Dan T1 - The influence of hydrogen on thermal desorption properties in structure materials T2 - International Hydrogen Conference 2012 CY - Jackson, WY, USA DA - 2012-09-09 PY - 2012 AN - OPUS4-27542 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Dabah, Eitan A1 - Brauser, Stephan A1 - Kannengießer, Thomas A1 - Beyer, K. T1 - Hydrogen trapping and dissolution behavior dependent on microstructure of duplex steels T2 - International Hydrogen Conference 2012 CY - Jackson, WY, USA DA - 2012-09-09 PY - 2012 AN - OPUS4-27543 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Vöse, Markus A1 - Fedelich, Bernard ED - Maruyama, K. ED - Abe, F. ED - Igarashi, M. ED - Kishida, K. ED - Suzuki, M. ED - Yoshimi, K. T1 - Grain boundary cavitation under time-varying normal stresses T2 - 12th International conference on creep and fracture of engineering materials and structures CY - Kyoto, Japan DA - 2012-05-27 KW - Creep damage KW - Grain boundary diffusion KW - Cavitation KW - Simulation KW - Evolution equations PY - 2012 SP - 1 EP - 4(?) AN - OPUS4-27544 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Dabah, Eitan A1 - Kannengießer, Thomas A1 - Eliezer, Dan A1 - Böllinghaus, Thomas A1 - Ben-Gurion, S. T1 - In-Situ Examination of Hydrogen behavior in stainless steel by using energy dispersive diffraction synchrotron T2 - International Hydrogen Conference 2012 CY - Jackson, WY, USA DA - 2012-09-09 PY - 2012 AN - OPUS4-27545 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Gollnow, Christian A1 - Kannengießer, Thomas T1 - Optical in-situ measurement system for determination of material behaviour in welds T2 - Visual-JW2012 - International Symposium on Visualization in Joining & Welding Science through Advanced Measurements and Simulation CY - Osaka, Japan DA - 2012-11-28 KW - Digital image correlation KW - In-situ measurement KW - Local weld deformation KW - Hot cracking KW - Local weld displacement KW - Controlled tensile weldability test PY - 2012 VL - 1 IS - JWP-12 SP - 27 EP - 28 AN - OPUS4-27547 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Hothan, Sascha A1 - Häßler, Dustin T1 - Zur Anwendung reaktiver Brandschutzsysteme auf Stahlzuggliedern N2 - Reaktive Brandschutzsysteme werden in zunehmendem Maße zum Schutz von sichtbaren Stahlkonstruktionen eingesetzt, weil mit den relativ geringen Beschichtungsdicken das architektonische Erscheinungsbild der Konstruktionen erhalten bleibt. Die Verwendbarkeit der Systeme wird durch nationale und europäische technische Zulassungen geregelt. Die Zulassungen erlauben eine Anwendung auf zugbeanspruchten Bauteilen nur unter Einschränkungen. Eine Verwendung der Systeme auf Zuggliedern mit Vollquerschnitt ist derzeit nicht abgedeckt. Dieser Beitrag beschreibt die aktuelle Situation zur Anwendung reaktiver Brandschutzsysteme und erläutert die physikalisch-technischen Hintergründe. Ferner wird anhand eines Beispiels außerhalb des Anwendungsbereiches der Zulassungen gezeigt, wie eine Anwendung auf Zuggliedern mit rundem Vollquerschnitt im Rahmen einer Zustimmung im Einzelfall ermöglicht werden kann. In einem weiteren Abschnitt werden die jüngsten Forschungsergebnisse aus einem durch das Deutsche Institut für Bautechnik geförderten und durch die Bundesanstalt für Materialforschung und -prüfung bearbeiteten Vorhabens vorgestellt. Das Forschungsvorhaben verfolgt das Ziel, eine Anwendung reaktiver Brandschutzsysteme auf Zuggliedern mit Vollquerschnitten auf Grundlage von Zulassungen allgemein zu ermöglichen.------------------------------------------------------------------------------------------------------------------------------- The application of intumescent coatings for fire protection of steel constructions is increasing. Thanks to the relative thin thickness of the coatings, the typical visual appearance of the structures can be preserved. The applicability of the systems is regulated by the national German as well as European technical approvals. According to the approvals, the application on steel members in tension is only allowed with limitations. Especially, the application on solid steel rods in tension is currently not yet covered. This contribution first explains the actual state of the art of the application of reactive fire protection systems to steel structures. Technical background information is provided. Furthermore, a case study is presented in order to illustrate the limitations in the scope of the approvals and a possible approach to allow the application of intumescent coatings on solid steel rods via an approval for a specific construction project. After that, the latest scientific results of a research project funded by the German National Institute of Building Technology (DIBt) and conducted by the Federal Institute for Materials Research and Testing (BAM) are described. The objective of the project is to enable the application of intumescent coatings on solid steel rods in tension within the scope of approvals in general. KW - Heißbemessung KW - Stahlkonstruktion KW - Reaktive Brandschutzsysteme KW - Reactive fire protection systems KW - Steel structure KW - Structural fire design KW - Brandschutz KW - Fire protection engineering PY - 2012 U6 - https://doi.org/10.1002/bapi.201200034 SN - 0171-5445 SN - 1437-0980 VL - 34 IS - 6 SP - 275 EP - 285 PB - Ernst CY - Berlin AN - OPUS4-27548 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Osterloh, Kurt T1 - Der EFNDT WG5 Workshop in Berlin Köpenick vom 22. bis 24. Oktober 2012 PY - 2012 UR - http://www.dgzfp.de/Portals/24/Zeitung/Ausgaben/Zeitung132.pdf#page=10 SN - 1616-069X SN - 0948-5112 VL - 132 SP - 12 PB - Deutsche Gesellschaft für Zerstörungsfreie Prüfung CY - Berlin AN - OPUS4-27549 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Osterloh, Kurt A1 - Wrobel, Norma ED - Aschenbruck, N. ED - Martini, P. ED - Meier, M. ED - Tölle, J. T1 - Safety and security, dealing with risks N2 - Reducing risks and confining them to an acceptable level can be regarded as an essential commitment of technical applications for safety purposes and the public security measures. Rating the efficiency of such measures requires an assessment of the risk that is supposed to be reduced. However, approaching this subject means to face a plethora of existing literature and an ongoing discussion if and how this can be achieved. On one hand, it remains a rather uncertain estimate particularly if it comes to rare interrupting events. On the other hand, making a decision responsibly requires a certain rational base. Several approaches exist for assessing risks, from verbal to quantitative, depending on the individual case. The frequently quoted Delphi technique represents the verbal one, others such as the Bayesian statistics a quantitative one or the consequence/probability matrix in-between. A problem remains with understanding probability. Even if an event is highly unlikely it may happen right now. T2 - Future Security 2012 - 7th Security research conference CCIS CY - Bonn, Germany DA - 2012-09-04 KW - Risk definition KW - Risk assessment KW - Public safety and security PY - 2012 UR - http://link.springer.com/chapter/10.1007/978-3-642-33161-9_13 SN - 978-3-642-33160-2 SN - 978-3-642-33161-9 U6 - https://doi.org/10.1007/978-3-642-33161-9 SN - 1865-0929 SN - 1865-0937 VL - 318 SP - 77 EP - 80 PB - Springer AN - OPUS4-27550 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Horn, Wolfgang A1 - Jann, Oliver A1 - Müller, B. A1 - Panaskova, J. A1 - Müller, D. A1 - Plehn, W. T1 - Sensory tests for buildings materials and rooms -Status of the standardisation- T2 - Healthy Buildings 2012, 10th International Conference CY - Brisbane, Australia DA - 2012-07-08 PY - 2012 AN - OPUS4-27493 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Habel, Wolfgang ED - Boller, C. T1 - Advances in developing standards for fibre-optic sensors T2 - EWSHM'12 - 6th European workshop on structural health monitoring 2012 CY - Dresden, Germany DA - 2012-07-03 KW - Standardization KW - Fibre-optic sensors KW - Validation KW - Reliability KW - Calibration PY - 2012 SN - 978-3-940283-41-2 IS - Tu.4.C.2 SP - 1 EP - 9(?) CY - Berlin AN - OPUS4-27495 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Osterloh, Kurt A1 - Wrobel, Norma T1 - Safety and Security, Dealing with Risks T2 - 7th FutureSecurity CY - Bonn, Germany DA - 2012-09-04 PY - 2012 AN - OPUS4-27496 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Osterloh, Kurt A1 - Wrobel, Norma A1 - Pfeil, Norbert A1 - Sudy, Irene T1 - Das Verständnis von Risiko und dessen Einschätzung T2 - DACH-Jahrestagung DGZfP CY - Graz, Austria DA - 2012-09-17 PY - 2012 AN - OPUS4-27497 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Osterloh, Kurt A1 - Zscherpel, Uwe A1 - Ewert, Uwe T1 - Bildbearbeitung; automatische Eigenschaftserkennung versus visuelle Bearbeitung T2 - DACH-Jahrestagung DGZfP CY - Graz, Austria DA - 2012-09-17 PY - 2012 AN - OPUS4-27498 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Osterloh, Kurt A1 - Wrobel, Norma T1 - Approaching an understanding of risk: a subject for the EFNDT Working Group 5 "NDT Technology for Public Security and Safety" T2 - 3rd EFNDT WG5 Workshop "NDT Technology for Public Security and Safety" CY - Berlin, Germany DA - 2012-10-22 PY - 2012 AN - OPUS4-27499 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Osterloh, Kurt A1 - Wrobel, Norma T1 - Risk assessment techniques samples T2 - 3rd EFNDT WG5 Workshop "NDT Technology for Public Security and Safety" CY - Berlin, Germany DA - 2012-10-22 PY - 2012 AN - OPUS4-27500 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CHAP A1 - Schartel, Bernhard A1 - Richter, K. H. A1 - Böhning, Martin ED - Morgan, A. B. ED - Wilkie, C. A. ED - Nelson, G. L. T1 - Synergistic use of talc in halogen-free flame retarded polycarbonate/Acrylonitrile-butadiene-styrene blends N2 - Pyrolysis, flammability, fire behavior, melt viscosity, and gas diffusion of bisphenol A polycarbonate/acrylonitrile-butadiene-styrene (PC/ABS) were investigated, with bisphenol A bis(diphenyl phosphate) (BDP), with 10 wt.% talc and with BDP in combination with 5, 10 and 20 wt.% talc, respectively. Compared to PC/ABS, PC/ABS + BDP results in an increased decomposition temperature of PC, a higher char yield, a significantly increased LOI, a V-0 classification in UL 94, a reduced peak heat release rate (pHRR), and a reduced total heat release (THR) in the cone calorimeter. This efficient flame retardancy is due to mechanisms in both the gas and condensed phases. PC/ABS + 10 wt.% talc shows a decrease in the PC decomposition temperature. The fire behavior is improved in part compared to PC/ABS, with an increased LOI and reduced pHRR. PC/ABS + BDP + 10 wt.% talc shows a strong synergism in LOI, a V-0 classification, and a decrease in pHRR, whereas THR is slightly increased compared to PC/ABS + BDP. Talc decreases the gas diffusion and enhances the flow limit for low shear rates, both of which influence the pyrolysis and flammability results. Further, talc improves the protection properties of the fire residues. Nevertheless it also partly suppresses flame inhibition and the charring effect of BDP. The synergism between BDP and talc in LOI is obtained even for low talc loadings in PC/ABS + BDP + talc, whereas for higher loadings saturation is observed. KW - Flame retardancy KW - PC/ABS KW - Aryl phosphate KW - Talc PY - 2012 SN - 978-0-8412-2780-4 U6 - https://doi.org/10.1021/bk-2012-1118.ch002 N1 - Serientitel: ACS Symposium Series – Series title: ACS Symposium Series VL - 1118 IS - Chapter 2 SP - 15 EP - 36 PB - Oxford University Press AN - OPUS4-27563 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Müller, Werner T1 - Zur inneren Scherfestigkeit von Kunststoff-Dränelementen N2 - Kunststoff-Dränelemente werden auch in Böschungen eingebaut. Da sie in der Regel aus mehreren Komponenten, nämlich mindestens aus einem Dränkern und einem Filtervliesstoff bestehen, hängt die Standsicherheit u. a. von der inneren Scherfestigkeit der Produkte ab. Diese kann entweder durch die reine Reibung der Komponenten untereinander oder durch die mechanische Festigkeit von Fügestellen zwischen den Komponenten bedingt sein, die schon bei der Produktion hergestellt werden. Im letzteren Fall ist nicht klar, wie Ergebnisse von Reibungsversuchen im Rahmenschergerät zu interpretieren sind. Vor diesem Hintergrund wird gezeigt, wie die Druck- und Scherkräfte, die ein Produkt langfristig aushalten kann, aus einem Reibungsversuch im Zusammenhang mit Kriechversuchen abgeleitet werden können. Dieses Vorgehen wird bei der Zulassung nach der Deponieverordnung für den Einsatz in Deponieabdichtungen angewendet.----------------------------------------------------------------------------------------------------- Geocomposite drains (GCD) are used on long and steep slopes. Since they are usually composed of different components, at least a drain core in connection with a nonwoven filter geotextile, the internal shear strength is of significant relevance for the slope stability. The internal shear strength may be due to pure friction forces between the different components or due to the mechanical strength of the bonding between the components achieved in a special production process. In the latter case the interpretation of the results of friction shear box tests is quite unclear. Against this background it is shown how the pressure and shear forces, which are acceptable for a product in the long run, may be derived from such a shear box test in combination with long-term creep tests. The procedure is used within the framework of the certification of the products for landfill cover systems according to the German landfill ordinance. KW - Kunststoff-Dränelement KW - Scherfestigkeit KW - Reibungsversuch KW - Standsicherheit KW - Deponieverordnung KW - Geocomposite drain KW - Shear strength KW - Shear box test KW - Slope stability KW - German landfill ordinance KW - Deponietechnik - Landfills KW - Geokunststoffe - Geosynthetics KW - Laborversuche - Laboratory tests PY - 2012 U6 - https://doi.org/10.1002/gete.201200003 SN - 0172-6145 SN - 1865-7362 SN - 2190-6653 VL - 35 IS - 4 SP - 257 EP - 262 PB - VGE Verl. GmbH CY - Essen AN - OPUS4-27565 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Strassert, J.F.H. A1 - Köhler, T. A1 - Wienemann, T. H. G. A1 - Ikeda-Ohtsubo, W. A1 - Faivre, N. A1 - Franckenberg, S. A1 - Plarre, Rüdiger A1 - Radek, R. A1 - Brune, A. T1 - 'Candidatus ancillula trichonymphae', a novel lineage of endosymbiotic actinobacteria in termite gut flagellates of the genus trichonympha N2 - Termite gut flagellates are colonized by host-specific lineages of ectosymbiotic and endosymbiotic bacteria. Previous studies have shown that flagellates of the genus Trichonympha may harbour more than one type of symbiont. Using a comprehensive approach that combined cloning of SSU rRNA genes with fluorescence in situ hybridization and electron microscopy, we investigated the phylogeny and subcellular locations of the symbionts in a variety of Trichonympha species from different termites. The flagellates in Trichonympha Cluster I were the only species associated with 'Endomicrobia', which were located in the posterior part of the cell, confirming previous results. Trichonympha species of Cluster II from the termite genus Incisitermes (family Kalotermitidae) lacked 'Endomicrobia' and were associated with endosymbiotic Actinobacteria, which is highly unusual. The endosymbionts, for which we suggest the name 'Candidatus Ancillula trichonymphae', represent a novel, deep-branching lineage in the Micrococcineae that consists exclusively of clones from termite guts. They preferentially colonized the anterior part of the flagellate host and were highly abundant in all species of Trichonympha Cluster II except Trichonympha globulosa. Here, they were outnumbered by a Desulfovibrio species associated with the cytoplasmic lamellae at the anterior cell pole. Such symbionts are present in both Trichonympha clusters, but not in all species. Unlike the intracellular location reported for the Desulfovibrio symbionts of Trichonympha agilis (Cluster I), the Desulfovibrio symbionts of T. globulosa (Cluster II) were situated in deep invaginations of the plasma membrane that were clearly connected to the exterior of the host cell. PY - 2012 U6 - https://doi.org/10.1111/1462-2920.12012 SN - 1462-2912 SN - 1462-2920 VL - 14 IS - 12 SP - 3259 EP - 3270 PB - Blackwell Science CY - Oxford AN - OPUS4-27566 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Mieller, Björn A1 - Gemeinert, Marion A1 - Koppert, R. A1 - Bolte, J. A1 - Rabe, Torsten T1 - LTCC substrates for high performance strain gauges N2 - Recent advances in the development of high gauge factor thin-films for strain gauges prompt the research on advanced substrate materials. A glass ceramic composite has been developed in consideration of a high coefficient of thermal expansion and a low modulus of elasticity for the application as support material for thin-film sensors. Constantan foil strain gauges were fabricated from this material by tape casting, pressure-assisted sintering and subsequent lamination of the metal foil on the planar ceramic substrates. The sensors were mounted on a strain gauge beam arrangement and load curves and creep behavior were evaluated. The accuracy of the assembled load cells correspond to accuracy class C6. That qualifies the load cells for the use in automatic packaging units and confirms the applicability of the LTCC substrates for fabrication of accurate strain gauges. To facilitate the deposition of thin film sensor structures onto the LTCC substrates, the pressure-assisted sintering technology has been refined. By the use of smooth setters instead of release tapes substrates with minimal surface roughness were fabricated. Metallic thin films deposited on these substrates exhibit low surface resistances comparable to thin films on commercial alumina thin-film substrates. The presented advances in material design and manufacturing technology are important to promote the development of high performance thin-film strain gauges. T2 - CICMT 2012 - 8th International conference on ceramic interconnect & ceramic microsystems technologies CY - Erfurt, Germany DA - 16.04.2012 KW - LTCC KW - Thin-film substrate KW - Pressure-assisted sintering KW - Strain gauge PY - 2012 N1 - Geburtsname von Mieller, Björn: Brandt, B. - Birth name of Mieller, Björn: Brandt, B. SP - 000175 EP - 000180 (Session TP 4 / TP 43) AN - OPUS4-27567 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Nohr, Michael A1 - Wiegner, Katharina A1 - Richter, Matthias A1 - Horn, Wolfgang T1 - Development of a reference material for the measurement of (S)VOC in emission test chambers T2 - Healthy Buildings 2012 - 10th International conference CY - Brisbane, Australia DA - 2012-07-08 KW - VOC KW - Sources/emissions KW - Measurements KW - Laboratory studies PY - 2012 SN - 978-1-921897-40-5 SP - 1 EP - 2 (5B.10) AN - OPUS4-27568 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Tiebe, Carlo A1 - Hübert, Thomas A1 - Lorek, A. A1 - Wernecke, R. T1 - New planar trace humidity sensor N2 - A new planar sensor element for continuous coulometric trace humidity measurements in industrial gases has been developed. In order to ensure precise measurements a calibration facility including a precision dew point hygrometer as a reference device was developed. The sensor can measure the humidity in the frost point temperature range of -20 °C to -80 °C and has an expanded uncertainty of 2 K, a fast reaction time and a settling time of the entire system from 15 to 30 min. T2 - IMCS 2012 - 14th International meeting on chemical sensors CY - Nuremberg, Germany DA - 2012-05-20 KW - Trace humidity KW - Coulometric principle KW - HUMITRACE sensor KW - Humidity measurement PY - 2012 SN - 978-3-9813484-2-2 U6 - https://doi.org/10.5162/IMCS2012/3.4.2 SP - 294 EP - 297 PB - AMA Service GmbH CY - Wunstorf AN - OPUS4-27570 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Mangelsdorf, Axel A1 - Denkler, Tilman T1 - Exploring Business Benefits Of Internationally Recognized Certifications - Empirical Evidence from a Global Company Survey - T2 - IAF | ILAC Joint Annual Meetings CY - Rio de Janeiro, Brazil DA - 2012-10-22 PY - 2012 AN - OPUS4-27531 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Knothe, Esther A1 - Makris, Ralf A1 - Kretzschmar, Enrico A1 - Rücker, Werner T1 - WP 3 - First Results of laboratory tests for ballasted and slab track mitigation measures T2 - RIVAS - Railway Induced Vibration Abatement Solutions; EU project CY - Berlin, Germany DA - 2012-11-12 PY - 2012 AN - OPUS4-27532 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Baeßler, Matthias A1 - Niederleithinger, Ernst A1 - Georgi, Steven A1 - Herten, M. T1 - Ergebnisse der Prüfung von Bohrpfählen mittels dynamischer Pfahlprobebelastungen T2 - Workshop "Bewertung dynamischer Pfahlprobebelastungen von Bohrpfählen" CY - Karlsruhe, Germany DA - 2012-12-05 PY - 2012 AN - OPUS4-27533 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Wilsch, Gerd A1 - Schaurich, Dieter ED - Forde, M.C. T1 - Laser induced breakdown spectroscopy for fast analysis of ingress profiles of ions on concrete T2 - Structural faults & repair 2012 - 14th International conference and exhibition CY - Edinburgh, Scotland DA - 2012-07-03 KW - Laser Induced Breakdown Spectroscopy (LIBS) KW - Chloride KW - Sulphate KW - Alkali metals KW - Damage KW - Non-destructive testing KW - Concrete KW - On-site PY - 2012 SN - 0-947664-71-7 SP - 1 EP - 8(?) PB - Engineering Technics Press AN - OPUS4-27535 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Simo, A. A1 - Polte, Jörg A1 - Pfänder, N. A1 - Vainio, U. A1 - Emmerling, Franziska A1 - Rademann, K. T1 - Formation mechanism of silver nanoparticles stabilized in glassy matrices N2 - In any given matrix control over the final particle size distribution requires a constitutive understanding of the mechanisms and kinetics of the particle evolution. In this contribution we report on the formation mechanism of silver nanoparticles embedded in a soda-lime silicate glass matrix. For the silver ion-exchanged glass it is shown that at temperatures below 410 °C only molecular clusters (diameter <1 nm) are forming which are most likely silver dimers. These clusters grow to nanoparticles (diameter >1 nm) by annealing above this threshold temperature of 410 °C. It is evidenced that the growth and thus the final silver nanoparticle size are determined by matrix-assisted reduction mechanisms. As a consequence, particle growth proceeds after the initial formation of stable clusters by addition of silver monomers which diffuse from the glass matrix. This is in contrast to the widely accepted concept of particle growth in metal–glass systems, in which it is assumed that the nanoparticle formation is predominantly governed by Ostwald ripening processes. PY - 2012 U6 - https://doi.org/10.1021/ja309034n SN - 0002-7863 SN - 1520-5126 VL - 134 IS - 45 SP - 18824 EP - 18833 PB - American Chemical Society CY - Washington, DC AN - OPUS4-27539 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Rabin, Ira T1 - Ink identification to accompany digitization of the mauscripts T2 - Methods and means for digital analysis of classical and medieval texts and manuscripts CY - Leuven, Belgium DA - 2012-04-02 PY - 2012 AN - OPUS4-27511 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Rabin, Ira T1 - Implications of the material aspects of the DSS for Qumran studies T2 - SBL Anual meeting CY - Chicago, IL, USA DA - 2012-11-17 PY - 2012 AN - OPUS4-27512 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Rabin, Ira T1 - History of the Genesis Apocryphon: 2000 + 65 years T2 - Gordon conference: Scientific Methods in Cultural Heritage Research CY - Dover, VT, USA DA - 2012-07-29 PY - 2012 AN - OPUS4-27513 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Rabin, Ira T1 - Parchment production in Antiquity T2 - ICOM-CC: Leather & Related Marerials Working Group CY - Offenbach am Main, Germany DA - 2012-08-28 PY - 2012 AN - OPUS4-27514 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Krug, Sonja T1 - Folgen der historischen Schädlingsbekämpfung in Archiven und Museen Risikoabschätzung - Gefahr für Menschen und Umwelt T2 - 6. N.i.Ke.-Workshop Segen und Fluch - Biozide: I. Verwendung, Analytik, Bewertung CY - Berlin, Germany DA - 2012-11-19 PY - 2012 AN - OPUS4-27516 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Reischel, Mercedes A1 - Myrach, Philipp A1 - Maierhofer, Christiane T1 - Development of Reference Test CFRP Specimens for the Standardisation of Active Thermography with Flash Excitation N2 - With increasing use of carbon fibre reinforced polymers (CFRP) in civil aviation, the need for nondestructive testing (NDT) techniques has gained significance. One of the very promising methods is active thermography with flashlight excitation (flash thermography). Already exploited to detect faults in CFRP laminates it is yet not recognized as test method for the very reason an international user standard is missing. The authors will present the results of a project involving the development of a testing standard for flash thermography. In addition to the standardization of the selection of appropriate equipment and procedures for testing and data analysis, the new standard will provide suitable reference test specimens for several materials, including CFRP. These test specimens should enable qualification of the equipment as well as the validation of flash thermography. For this purpose, specimens of CFRP prepregs containing various typical flaws have been manufactured. These flaws are similar to those which occur in operation, for example as a result of an impact. The impact specimens have been constructed and damaged according to DIN 65561 with energies ranging from 4 to 24 J. Other specimens contain flaws similar to those which are caused by production processes, for example deviating fiber direction. Systematic measurements and new methods of analysis enhanced the knowledge about best experimental set ups for detecting different flaws. Furthermore the accuracy of the defect size examination with flash thermography had to be judged. For this purpose specimens with well known artificial defects have been investigated. These specimens have been performed as stepbars with inclusions of double layered Polytetrafluorethylen (PTFE) foil platelets in squares sized from 2 to 20 mm². The steps ensure laminate coverings of the defects from 0.5 to 5.5 mm². In combination with new developed data analysis, the measurements on the stepbars demonstrate that this type of specimens might conceivable for adjustment of flash thermography set ups and should be recommended for the future standard. Some of the experimental findings are still debated and further research is needed in order to establish a well prepared user standard for flash thermography. Since the project will end at the beginning of 2013 these questions will be explored, whereby the transferring of conclusions to on-site applications is of particular interest. T2 - 4th International Symposium on NDT in Aerospace CY - Augsburg, Germany DA - 2012-11-13 PY - 2012 AN - OPUS4-27517 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Carvalho, J.J.D. A1 - Bahlmann, Arnold A1 - Schneider, Rudolf T1 - ELISA goes Berlin - Bestimmung von Carbamazepin, Cetrizin und Coffein in Berliner Gewässern KW - ELISA KW - Koffein KW - Immunoassay KW - Oberflächenwasser KW - Wasseranalytik PY - 2012 SN - 0016-3538 VL - 4 SP - 278 EP - 281 PB - GIT-Verlag CY - Darmstadt AN - OPUS4-27518 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Reischel, Mercedes A1 - Myrach, Philipp A1 - Maierhofer, Christiane T1 - Development of reference test CFRP specimens for the standardisation of active thermography with flash excitation N2 - In this contribution, the authors present the results of a project which involves the development of a testing standard for flash thermography. In addition to the standardization of the selection of appropriate equipment and procedures for testing and data analysis, the new standard will provide suitable reference test specimens for several materials, including CFRP as used in aerospace applications with typical flaws. We will particularly consider these test specimens which should enable qualification of the equipment as well as the validation of the flash thermography method for CFRP in general. T2 - 4th International symposium on NDT in aerospace 2012 CY - Augsburg, Germany DA - 2012-11-13 KW - CFRP reference KW - Active thermography KW - Flash excitation PY - 2012 UR - http://2012.ndt-aerospace.com/Portals/aerospace2012/BB/th4a1.pdf SN - 978-3-940283-46-7 IS - DGZfP-BB 138 (Th.4.A.1) SP - 1 EP - 8 AN - OPUS4-27519 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Seeger, Stefan T1 - Untersuchung der Wirksamkeit von Filtern zum Schutz vor Partikelemissionen aus Laserdrucksystemen N2 - Laserdrucksysteme (Laserdrucker, -kopierer, Multifunktionsgeräte) emittieren in sehr unterschiedlichen Mengen Partikel im Größenbereich zwischen 5 und 300 nm, die im Druckbetrieb überwiegend durch Kondensation aus der Gasphase entstehen. Eine präventive Minderung dieser Emissionen ist sinnvoll. Die Filtration der in Laserdruckern entstehenden Aerosole bietet eine Option für eine wirksame Emissionsminderung. Die untersuchten Filter mit verschiedenen Filterkonzepten zeigten in ihrer Wirkung deutliche Unterschiede. Die Ergebnisse unterstreichen die Notwendigkeit der gerätespezifischen Optimierung von Filtern für die Anwendung in Laserdrucksystemen.---------------------------------------------------------------------------------------------------------------------------------------------- Laser printing devices are sources of particle emission in different quantities in the size range between 5 and 300 nm. The particles are predominantly generated by re-condensation from the gas phase. Emission mitigation as a precautionary measure should be considered and exhaust air filtration is one technical option. Two particle filters with different filter concepts were compared and revealed different levels of performance. The result underpins the need for individual filter solutions for laser printing devices. PY - 2012 SN - 0949-8036 SN - 0039-0771 SN - 1436-4891 VL - 72 IS - 5 SP - 198 EP - 202 PB - Springer-VDI-Verl. CY - Düsseldorf AN - OPUS4-27520 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Osterloh, Kurt T1 - EFNDT Working Group 5, from mines to any kind of threats T2 - 3rd EFNDT WG5 Workshop "NDT Technology for Public Security and Safety" CY - Berlin, Germany DA - 2012-10-22 PY - 2012 AN - OPUS4-27501 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Osterloh, Kurt T1 - Security research and expertise at the BAM Federal Institute for Materials Research and Testing T2 - Archimedes first End-User and Operator Driven Roundtable: Towards More Efficient Civil Aviation Security? CY - Berlin-Schönhagen, Germany DA - 2012-12-03 PY - 2012 AN - OPUS4-27502 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Mätzner, Olaf T1 - Ökodesign und Energieverbrauchskennzeichnung T2 - Update Umweltrecht, VDMA CY - Frankfurt am Main, Germany DA - 2012-09-13 PY - 2012 AN - OPUS4-27503 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Akkerman, Floris T1 - Aktuelle Entwicklungen zum EVPG T2 - AK Richtlinienkonformes Design CY - Berlin, Germany DA - 2012-03-13 PY - 2012 AN - OPUS4-27504 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Akkerman, Floris T1 - Ökodesignrichtlinie - erste Erfahrungen zur nationalen und europäischen Koordination T2 - Erfahrungsaustausch Marktüberwachung CY - Berlin, Germany DA - 2012-06-14 PY - 2012 AN - OPUS4-27505 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Akkerman, Floris T1 - Ökodesign und Energieverbrauchskennzeichnung T2 - BAM-Kolloquium CY - Berlin, Germany DA - 2012-08-22 PY - 2012 AN - OPUS4-27506 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Akkerman, Floris T1 - Energy Labelling in the European Union anad requirements und der Energy Community Treaty T2 - Labelling Seminar CY - Kiev, Ukraine DA - 2012-10-25 PY - 2012 AN - OPUS4-27507 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Akkerman, Floris T1 - Die Bedeutung der Marktüberwachung und Marktdaten im Kontext der Ökodesign- und EU-Label-Richtlinie T2 - Workshop EU Top-Runner CY - Berlin, Germany DA - 2012-11-05 PY - 2012 AN - OPUS4-27508 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Akkerman, Floris T1 - Ökodesign-Richtlinie - Umweltanforderungen für Produkte T2 - Eurolab-D, BAM CY - Berlin, Germany DA - 2012-05-04 PY - 2012 AN - OPUS4-27509 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Rabin, Ira A1 - Hahn, Oliver A1 - Kindzorra, Emanuel T1 - Materials studies: recontructing the history of manuscripts T2 - Digital Humanities 2012 CY - Hamburg, Germany DA - 2012-07-16 PY - 2012 AN - OPUS4-27510 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Resch-Genger, Ute T1 - Kalibrierung von fluoreszenzbasierten Zellassays T2 - Senftenberger Innovationsforum CY - Senftenberg, Germany DA - 2012-03-16 PY - 2012 AN - OPUS4-27521 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Resch-Genger, Ute A1 - Kaiser, Martin A1 - Würth, Christian T1 - Luminescence Properties of Cer-dotierten Yttrium-Aluminium-Garnet (YAG:Ce) Nanoparticles T2 - Upcore Joint Seminar CY - Regensburg, Germany DA - 2012-08-30 PY - 2012 AN - OPUS4-27522 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Wiegner, Katharina A1 - Horn, Wolfgang A1 - Jann, Oliver A1 - Farke, M. A1 - Hahn, Oliver T1 - Assessment of emissions from materials for museum equipment T2 - Healthy Buildings 2012 - 10th International conference CY - Brisbane, Australia DA - 2012-07-08 KW - Assessment of emissions from materials for museum equipment KW - BEMMA display case KW - Protection of cultural object KW - Emissions PY - 2012 SN - 978-1-921897-40-5 SP - 1 EP - 2 (7G.3) AN - OPUS4-27525 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Wiegner, Katharina A1 - Horn, Wolfgang A1 - Wilke, Olaf A1 - Kalus, Sabine A1 - Jann, Oliver T1 - Different possibilities for the statistical evaluation of round robin tests for volatile organic compounds in emission test chambers T2 - Healthy Buildings 2012 - 10th International conference CY - Brisbane, Australia DA - 2012-07-08 KW - Reference material KW - Round robin test KW - Emission test chamber KW - VOC-emission KW - Product emission testing PY - 2012 SN - 978-1-921897-40-5 SP - 1 EP - 2 (8B.6) AN - OPUS4-27526 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Wilsch, Gerd A1 - Goldschmidt, Sebastian A1 - Niederleithinger, Ernst A1 - Bienert, K. A1 - Schalk, H. A1 - Molkenthin, A. ED - Jacobsen, S. ED - Justnes, H. ED - Cepuritis, R. ED - Hornbostel, K. ED - Peng, Y. T1 - Quality control of hydrophobic coatings with an integrated marker element by laser-induced breakdown spectroscopy (LIBS) T2 - ICDC 2012 - International congress on durability of concrete CY - Trondheim, Norway DA - 2012-06-18 KW - Hydrophobic coating KW - Marker element KW - Quality control KW - Depth of penetration KW - Concrete repair KW - Pitting corrosion KW - Chloride KW - Exposure KW - Freeze-taw cycles KW - Laser-induced breakdown spectroscopy KW - Hydrophobierung KW - Laser Induced Breakdown Spektroskopie KW - Qualitätskontrolle PY - 2012 SN - 978-82-8208-031-6 SP - Session B 1, 1 EP - 14(?) AN - OPUS4-27527 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Wilsch, Gerd A1 - Schaurich, Dieter A1 - Wiggenhauser, Herbert ED - Leeman, C.M. T1 - Laser-induced breakdown spectroscopy for fast analysis of ingress profiles of ions on concrete T2 - NDE/NDT for highways and bridges - Structural materials technology -SMT- CY - New York City, NY, USA DA - 2012-08-21 KW - Beton KW - Laser Induced Breakdown Spektroskopie PY - 2012 SN - 978-1-57117-235-8 SP - 384 EP - 391 AN - OPUS4-27528 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Mishra, Kirti Bhushan A1 - Wehrstedt, Klaus-Dieter T1 - CFD simulation of hybrid fuel combustion T2 - Thirty Ninth National Conference on Fluid Mechanics and Fluid Power (NCFMFP) CY - Surat, India DA - 2012-12-13 PY - 2012 AN - OPUS4-27529 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Mangelsdorf, Axel A1 - de Vries, H. A1 - Blind, K. T1 - External Knowledge Sourcing and Involvement in Standardization - Evidence from the Community Innovation Survey T2 - IEEE International Technology Management Conference 2012 CY - Dallas, TX, USA DA - 2012-06-24 PY - 2012 AN - OPUS4-27530 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Weber, Gert A1 - Brauser, Stephan A1 - Gaul, Holger A1 - Rethmeier, Michael T1 - Study of fatigue behavior for spot welded tensile shear specimens of advanced high strength steels N2 - For automotive body-in-white applications the influence of manufacture-related gaps between the steel sheets and also of manufacture-related surface cracks on the fatigue behavior of tensile shear specimens for spot welded TRIP steel was analyzed. It was shown that gaps between the steel sheets reduce the fatigue strength, whereas the fatigue behavior is neither influenced by cracks in the electrode indentation area nor in the heat effected zone. PY - 2012 U6 - https://doi.org/10.1002/srin.201100286 SN - 1611-3683 SN - 0177-4832 VL - 83 IS - 10 SP - 988 EP - 994 PB - Verl. Stahleisen CY - Düsseldorf AN - OPUS4-27632 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CHAP A1 - Schönbucher, A. A1 - Schälike, Stefan T1 - Pool fires and spill fires KW - Pool fires KW - Spill fires KW - Soot KW - Heat transfer KW - Modeling PY - 2012 SN - 978-3527306732 U6 - https://doi.org/10.1002/14356007.q20_q05 IS - Chapter 2.3 SP - 47 EP - 60 PB - Wiley-VCH Verlag GmbH & Co. KGaA CY - Weinheim ET - 8th Ed. AN - OPUS4-27635 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Pavlovic, Mato A1 - Ronneteg, U. A1 - Müller, Christina A1 - Ewert, Uwe A1 - Boller, C. T1 - Safe product design - the role of the NDE reliability analysis N2 - When pushed to the limits of their detection capability, NDE systems do not produce consistent hit/miss indications. Their capability of detecting small defects is therefore expressed in terms of POD. An adequate NDE system is required to ensure the structural integrity. In conventional signal response analysis, the POD is expressed as a function of the defect size, and its adequacy for the inspection task is tested against the maximum allowable defect size which will not undermine the structural integrity. Analyses of modern structures show that other parameters, beside the defect size, can both significantly influence the POD and determine the severity of the defect for the structure. Within the multi-parameter reliability analysis, the POD is expressed as a function of those influencing parameters. When determining the adequacy of the NDE system, the capability of detecting a defect has to be expressed and tested against the critical value of exactly that parameter that determines defects severity for the structure. Failing to do so can lead to a rejection of the healthy, or acceptance of the bad part. The principle is demonstrated on the example of the Transmit-Receive Longitudinal (TRL) ultrasonic inspection of the iron cast component for semi-elliptical surface defects. T2 - 18th WCNDT - World conference on nondestructive testing CY - Durban, South Africa DA - 2012-04-16 KW - Reliability KW - Probability of detection (POD) KW - Multi-parameter KW - Ultrasonics KW - Transmit receive longitudinal (TRL) PY - 2012 SN - 978-0-620-52872-6 SP - 1 EP - 9 (Paper 310) AN - OPUS4-27581 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Kanzler, Daniel A1 - Müller, Christina A1 - Pitkänen, J. A1 - Ewert, Uwe T1 - Bayesian approach for the evaluation of the reliability of non-destructive testing methods: combination of data from artificial and real defects N2 - The Probability of Detection (POD) is used to evaluate the detectability of non-destructive testing (NDT) systems. The POD is highly dependent on the amount of available data. The Bayesian approach provides a solution to compute POD-curves in case of a small amount of real defects without losing the necessary information. The result contains the needed information for the computation of POD-curves for real defects with an acceptable amount of information, even for sparse amount of data. In this paper is shown limitations of the Bayesian approach and how it can be applied to NDT. The Bayesian approach is applied in this case to the evaluation of radiographic testing. Bayesian approach is applied to determine POD-curves for the inspection techniques of nuclear fuel disposal canisters. The reason for using Bayesian approach is the high safety demands and also the low amount of real defects due to the high quality of the reliable production techniques. T2 - 18th WCNDT - World conference on nondestructive testing CY - Durban, South Africa DA - 2012-04-16 KW - Reliability KW - Probability of Detection KW - Real defect testing KW - Bayesian statistics KW - Radiographic testing PY - 2012 SN - 978-0-620-52872-6 SP - 1 EP - 6 (Paper 196) AN - OPUS4-27582 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Bertovic, Marija A1 - Fahlbruch, B. A1 - Müller, Christina A1 - Pitkänen, J. A1 - Ronneteg, U. A1 - Gaal, Mate A1 - Kanzler, Daniel A1 - Ewert, Uwe A1 - Schombach, D. T1 - Human factors approach to the acquisition and evaluation of NDT data N2 - This paper gives an introduction to the field of human factors with the focus on their influence on the reliability of NDT in the nuclear energy production (in-service inspections) and final storage of highly radioactive nuclear waste. A set of methodological tools has been developed in the scope of three projects, namely: 1) a theoretical model describing potential human factors influencing manual ultrasonic inspection performance during inservice inspections in nuclear power plants; 2) a method for identifying potential human errors during acquisition and evaluation of data gathered with mechanized ultrasonic, radiographic and eddy-current systems, as well as visual testing with a remote camera (Failure Modes and Effects Analysis, FMEA); and 3) use of eye tracking methodology to optimize existing procedures and practices. The experimental results have shown that time pressure, mental workload and experience influence the quality of the inspection performance. Noticeable were influences from the organization of the working schedule, communication, procedures, supervision and demonstration task. Implementing human redundancy in critical tasks, such as defect identification, as well as using an automated aid (software) to help operators in decision making about the existence and size of defects, could lead to other kinds of problems, namely social loafing (excerpting less effort when working on tasks collectively as compared to working alone) and automation bias (uncritical reliance on the proper function of an automated system without recognizing its limitations and the possibilities of automation failure) that might affect the reliability of NDT in an undesired manner. T2 - 18th WCNDT - World conference on nondestructive testing CY - Durban, South Africa DA - 16.04.2012 KW - Human Factors KW - Time Pressure KW - 4-Eye Principle KW - Automation Bias KW - Nuclear Waste Storage KW - In-Service Inspection (ISI) KW - Nuclear Power Plants KW - Eye Tracking KW - Failure Modes and Effects Analysis (FMEA) PY - 2012 SN - 978-0-620-52872-6 SP - 1 EP - 10 (Paper 198) AN - OPUS4-27583 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Mishra, Kirti Bhushan A1 - Wehrstedt, Klaus-Dieter T1 - CFD simulation of hybrid fuel combustion T2 - NCFMFP 2012 - 39th National conference on fluid mechanics and fluid power CY - Surat, Gujarat, India DA - 2012-12-13 KW - CFD KW - Hybrid fuel KW - Hydrocarbon KW - Peroxy-fuel KW - Combustion PY - 2012 SN - 978-81-925-494-0-8 IS - FMFP2012 - 209 SP - 1 EP - 7(?) AN - OPUS4-27587 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Hussung, D.R. A1 - Kurz, J.H. A1 - Stoppel, Markus T1 - Automatisierte, zerstörungsfreie Prüftechnik für großflächige Stahlbetontragwerke - Ein Anwendungsbeispiel N2 - Eine Vielzahl zerstörungsfreier Prüfverfahren hat in den letzten Jahren Einzug in die Bauwerksuntersuchung gehalten. Um die Aussagekraft der Einzelverfahren zu erhöhen und den wirtschaftlichen Einsatz weiter voranzubringen, lag es nahe, die Verfahren kombiniert auf einer automatisierten Plattform zu montieren. Zu diesem Zweck wurde das BetoScan-System entwickelt. Um weitere Erfahrungen mit dem BetoScan-System zu erhalten, wurde ein langjährig genutztes Parkhaus aus Stahlbeton mit Gussasphaltfahrbahn als Untersuchungsobjekt ausgewählt. Bei der experimentellen Bauwerksuntersuchung wurden die Verfahren Wirbelstrom, Radar, Ultraschall und Mikrowelle zum Einsatz gebracht. Von der Anwendung des Systems und der Auswertung der Ergebnisse wird in diesem Beitrag berichtet.----------------------------------------------------------------------------------------- In recent years a variety of non-destructive evaluation methods are more and more used for the inspection of constructions. Increasing the information value of inspections and the economic aspects of applications leads to a combination of methods on an automated system. Therefore, the BetoScan robot was developed. Gaining more experience in applications was realized with the inspection of a car park which was unused for several years. The building was made of reinforced concrete with melted asphalt as floor coating. Within the frame of the inspections eddy current, radar, ultrasound and microwaves were used. The application of the BetoScan system and the results are presented in this article. KW - Automatisierte zerstörungsfreie Prüfung KW - Bauwesen KW - Kombination KW - Verfahren KW - Bauwerksüberwachung KW - BetoScan-System KW - Dauerhaftigkeit KW - Gussasphalt KW - Instandsetzung KW - Lebensdauer KW - Mikrowelle KW - Nachhaltigkeit KW - Qualitätssicherung KW - Radar KW - Ultraschall-Prüfung KW - ZfP-Verfahren KW - Bauwerkserhaltung/Sanierung KW - Allgemeines PY - 2012 U6 - https://doi.org/10.1002/best.201200048 SN - 0005-9900 SN - 1437-1006 VL - 107 IS - 12 SP - 1 EP - 11 PB - Ernst CY - Berlin AN - OPUS4-27588 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Miccoli, Lorenzo A1 - Perrone, C. A1 - Fontana, Patrick A1 - Müller, Urs A1 - Ziegert, C. T1 - Charakterisierung und Modellierung der mechanischen Eigenschaften von Lehmsteinmauerwerk / Mechanical characterization and modelling of earth block masonry N2 - Das Wissen über die Materialeigenschaften und die Versagensmechanismen bei Lehmbaustoffen ist begrenzt und lückenhaft. Im Rahmen des EU-Projekts NIKER (www.niker.eu) wurden deshalb die mechanischen Eigenschaften von Bauteilen aus Lehm unter statischer Druck- und Schubbeanspruchung bestimmt. Ziel der Untersuchungen war es, grundlegende Daten zum Verformungs- und Versagensverhalten von Lehmbauteilen zu erhalten und dieses mit einem numerischen Modell zu beschreiben. Die Versuchsergebnisse belegten das spröde Verhalten von Lehmsteinmauerwerk bei uniaxialer Druckbelastung und zeigten, dass das Versagen von Lehmsteinmauerwerk infolge Schubbelastung nach Erstrissbildung in Mörtelfugen und Lehmsteinen durch Gleiten der Lehmsteine entlang der Mörtelfugen erfolgt. Die numerische Makromodellierung erbrachte zwar befriedigende Resultate hinsichtlich des Spannungs-Dehnungs-Verhaltens, jedoch konnte bei der simulierten Rissbildung keine Übereinstimmung mit den in den Versuchen beobachteten Rissbildern erzielt werden. Bei Lehmsteinmauerwerk ist also eine wesentlich aufwendigere Mikromodellierung notwendig, um das Versagensverhalten korrekt beschreiben zu können.-------------------------------------------------------------------------------------------------------------- Knowledge of the material properties and failure mechanisms of earthen materials is limited and scattered. Within the framework of the NIKER project (www.niker.eu) funded by EC, the mechanical properties of earthen material elements were therefore determined under static compression and shear loads. The aim was to obtain fundamental data on deformation behaviour and failure mechanisms of earthen material structural elements and to describe them by means of a numerical model. The test results confirmed the brittle behaviour of earth block masonry under monoaxial compressive load and showed that the failure of earth block masonry under shear load occurs by sliding of the earth blocks along the mortar joints after initial cracking in mortar joints and earth block. Numerical macro modelling showed satisfying results with regard to stress-strain behaviour, but the simulated crack pattern was not consistent with experimental observations. In the case of earth block masonry, it is thus necessary to use micro modelling approaches in order to correctly predict the failure process at local level. KW - Lehmstein Mauerwerk KW - Druckversuche KW - Schubversuche KW - F.E.M. Modellierung PY - 2012 U6 - https://doi.org/10.1002/dama.201200555 SN - 1432-3427 SN - 1437-1022 N1 - Sprachen: Deutsch/Englisch - Languages: German/English VL - 16 IS - 6 SP - 279 EP - 292 PB - Ernst CY - Berlin AN - OPUS4-27589 LA - mul AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Brauser, Stephan A1 - Rethmeier, Michael A1 - Pepke, Lutz-Alexander A1 - Weber, Gert T1 - Influence of production-related gaps on strength properties and deformation behaviour of spot welded trip steel HCT690T N2 - In this study, the influence of production-related gaps on the shear tension strength and fatigue performance was investigated for resistance spot welded TRIP steel HCT690. Furthermore, the local strain distribution in shear tension test was calculated by the digital image correlation technique (DIC). The static shear tension strength was found to be almost independent of gaps up to 3 mm. The maximum local strain in the spot weld region however decreases depending on which sample side (deformed or undeformed) is considered. In addition, it has been ascertained that gaps of 3 mm lead to a significant drop in fatigue life compared to gap-free shear tension samples. This fact could be attributed to decreased stiffness, higher transverse vibration and higher rotation (θ) between the sheets as well as increased local stress calculated by 2 dimensional FE simulation. KW - Deformation KW - Fatigue life KW - Finite element analysis KW - Gap KW - Resistance spot welding KW - Shear strength PY - 2012 SN - 0043-2288 SN - 1878-6669 VL - 56 IS - 03-04 SP - 115 EP - 125 PB - Springer CY - Oxford AN - OPUS4-27590 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Erning, Johann Wilhelm T1 - Metallene Werkstoffe im Trinkwasser - welche Dinge verändern sich? KW - Trinkwasser KW - Werkstoffe KW - Metallabgabe PY - 2012 SN - 0177-3054 VL - 65 IS - Dezember / Sonderheft: Trinkwasserhygiene 2013 SP - 30 EP - 33 PB - Strobel CY - Arnsberg AN - OPUS4-27628 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Montero-Calasanz, M.C. A1 - Göker, M. A1 - Pötter, G. A1 - Rohde, M. A1 - Spröer, C. A1 - Schumann, P. A1 - Gorbushina, Anna A1 - Klenk, H.P. T1 - Geodermatophilus saharensis sp. nov., isolated from sand of the Saharan desert in Chad N2 - A novel Gram-positive, aerobic, actinobacterial strain, CF5/5, was isolated from soil in the Sahara desert, Chad. It grew best at 20–35 °C and at pH 6.0–8.0 and with 0–4 % (w/v) NaCl, forming black-colored colonies. Chemotaxonomic and molecular characteristics of the isolate matched those described for members of the genus Geodermatophilus. The DNA G + C content was 75.9 mol%. The peptidoglycan contained meso-diaminopimelic acid; galactose and xylose were detected as diagnostic sugars. The main phospholipids were diphosphatidylglycerol, phosphatidylcholine, and phosphatidylinositol; MK-9(H4) was the dominant menaquinone. The major cellular fatty acids were: iso-C16:0 and iso-C15:0. The 16S rRNA gene showed 95.6–98.3 % sequence similarity with the other named members of the genus Geodermatophilus. Based on the polyphasic taxonomy data, the isolate is proposed to represent a novel species, Geodermatophilus saharensis with the type strain CF5/5T = DSM 45423 = CCUG 62813 = MTCC 11416. KW - Actinomycetes KW - Geodermatophilaceae KW - Taxonomy KW - Sahara desert KW - Phenotype microarray PY - 2012 U6 - https://doi.org/10.1007/s00203-012-0860-8 SN - 0302-8933 SN - 1432-072X IS - Dezember SP - 1 EP - 7(?) PB - Springer CY - Berlin ; Heidelberg AN - OPUS4-27630 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - GEN A1 - Raedel, Martina A1 - Sabel, Martin A1 - Bücker, Michael A1 - Unger, Brita ED - Meeks, N. ED - Cartwright, C. ED - Meek, A. ED - Mongiatti, A. T1 - ESEM-EDX analyses for the characterisation and reproduction of nineteenth-century gold tesserae N2 - Environmental scanning electron microscopy with energy dispersive X-ray analysis (ESEM-EDX) is a versatile working tool for the examination of gold tesserae as well as for the selection of suitable materials for their reproduction. In this paper, the ESEM-EDX analyses of original gold tesserae and their damage types are presented. These analytical results form the basis for further calculations of glass properties and experiments. These calculated values enable the determination of the relevant glass properties and allow us to choose the appropriate type of modern glass for further experiments. Subsequent experiments convert this knowledge into practice. By comparing the analytical results from the original glasses and the replicas the accuracy and precision will be shown. KW - Gold mosaics KW - Tesserae KW - ESEM-EDX KW - Glass analyses KW - Damage mechanism PY - 2012 SN - 978-1-904982-65-4 SP - 107 EP - 113 PB - Archetype publications Ltd. AN - OPUS4-27641 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Schröter, Maria-Astrid A1 - Holschneider, M. A1 - Sturm, Heinz T1 - Analytical and numerical analysis of imaging mechanism of dynamic scanning electron microscopy N2 - The direct observation of small oscillating structures with the help of a scanning electron beam is a new approach to study the vibrational dynamics of cantilevers and microelectromechanical systems. In the scanning electron microscope, the conventional signal of secondary electrons (SE, dc part) is separated from the signal response of the SE detector, which is correlated to the respective excitation frequency for vibration by means of a lock-in amplifier. The dynamic response is separated either into images of amplitude and phase shift or into real and imaginary parts. Spatial resolution is limited to the diameter of the electron beam. The sensitivity limit to vibrational motion is estimated to be sub-nanometer for high integration times. Due to complex imaging mechanisms, a theoretical model was developed for the interpretation of the obtained measurements, relating cantilever shapes to interaction processes consisting of incident electron beam, electron–lever interaction, emitted electrons and detector response. Conclusions drawn from this new model are compared with numerical results based on the Euler–Bernoulli equation. KW - Electron microscopy KW - Scanning force microscopy KW - Cantilever motion KW - Modes KW - Harmonics KW - Mathematical model KW - Imaging theory PY - 2012 U6 - https://doi.org/10.1088/0957-4484/23/43/435501 SN - 0957-4484 SN - 1361-6528 VL - 23 IS - 43 SP - 435501-1 - 435501-10 PB - IOP Publishing Ltd. CY - Bristol AN - OPUS4-27642 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Paul, Andrea A1 - Bräuer, Bastian A1 - Witting, Marcus A1 - Bremser, Wolfram T1 - Entwicklung einer on-line tauglichen Methode zur Bestimmung von Methanol in Biodiesel (FAME) basierend auf NIR Spektroskopie T2 - 8. Kolloquium Prozessanalytik CY - Berlin, Germany DA - 2012-12-03 PY - 2012 AN - OPUS4-27648 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Kühn, Julius A1 - Lippitz, Andreas A1 - Gorgoi, M. A1 - Nörthemann, K. A1 - Moritz, W. A1 - Unger, Wolfgang T1 - Composition and Chemistry of a Pd-Ni-Co alloy studied by HAXPES T2 - HZB Users Meeting 2012 CY - Berlin, Germany DA - 2012-12-12 PY - 2012 AN - OPUS4-27649 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Fokong, S. A1 - Theek, B. A1 - Wu, Z. A1 - Koczera, P. A1 - Appold, L. A1 - Jorge, S. A1 - Resch-Genger, Ute A1 - van Zandvoort, M. A1 - Storm, G. A1 - Kiessling, F. A1 - Lammers, T. T1 - Image-guided, targeted and triggered drug delivery to tumors using polymer-based microbubbles N2 - Microbubbles (MB) are routinely used contrast agents for functional and molecular ultrasound (US) imaging. In addition, they have been attracting more and more attention for drug delivery purposes, enabling e.g. US-mediated drug delivery across biological barriers and US-induced triggered drug release from the MB shell. The vast majority of efforts in this regard have thus far focused on phospholipid-based soft-shell MB, which are suboptimal for stably incorporating large amounts of drug molecules because of their relatively thin shell. Using poly(butyl cyanoacrylate) (PBCA)-based hard-shell MB, we show here that both hydrophilic (Rhodamine-B) and hydrophobic (Coumarin-6) model drugs can be efficiently and stably entrapped within the ~ 50 nm shell of PBCA MB. In addition, we demonstrate that model drug loading does not negatively affect the acoustic properties of the MB, and that functionalizing the surface of fluorophore-loaded MB with anti-VEGFR2 antibodies enables image-guided and targeted model drug delivery to tumor blood vessels. Finally, we show both in vitro and in vivo that disintegrating VEGFR2-targeted MB with high-mechanical index US pulses leads to high levels of model drug release. Consequently, these findings indicate that polymer-based MB are highly suitable systems for image-guided, targeted and triggered drug delivery to tumors and tumor blood vessels. KW - Ultrasound KW - Microbubbles KW - Fluorescent reporter KW - Drug delivery KW - Tumor targeting KW - Theranostics PY - 2012 U6 - https://doi.org/10.1016/j.jconrel.2012.05.007 SN - 0168-3659 SN - 1873-4995 VL - 163 IS - 1 SP - 75 EP - 81 PB - Elsevier CY - Amsterdam AN - OPUS4-27591 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Fleige, E. A1 - Ziem, B. A1 - Grabolle, Markus A1 - Haag, R. A1 - Resch-Genger, Ute T1 - Aggregation phenomena of host and guest upon the loading of dendritic core-multishell nanoparticles with solvatochromic dyes N2 - We systematically assessed the loading behavior of core-multishell nanoparticles (CMS NPs) for the solvatochromic dyes Coumarin 153 and Nile Red and studied the influence of the guest and its concentration on CMS NP aggregation using steady state absorption and fluorescence spectroscopy and dynamic light scattering (DLS). These measurements revealed the strong fluorescence of dye-loaded CMS NPs and formation of nonemissive dye aggregates in the outer CMS layer at higher loading concentrations of Nile Red, whereas in the case of Coumarin 153, a new species with red-shifted absorption and blue-shifted emission appeared. Moreover, dye loading triggers an aggregation of CMS NPs which have a hydrodynamic radius of 8 nm, thereby leading to CMS aggregates with a radius of 100–120 nm. These results underline the need for systematic studies of the influence of the guest and its loading concentration on CMS NP size for cellular uptake and in vivo imaging studies and the rational design of CMS NPs with improved transport and targeting abilities. PY - 2012 U6 - https://doi.org/10.1021/ma301977r SN - 0024-9297 SN - 1520-5835 VL - 45 IS - 23 SP - 9452 EP - 9459 PB - American Chemical Society CY - Washington, DC AN - OPUS4-27592 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Böllinghaus, Thomas A1 - Straub, Franka A1 - Unger, Wolfgang A1 - Mente, Tobias T1 - In-situ Detection of Deuterium in Duplex Stainless Steels Using Time-of-Flight Secondary Ion Mass Spectrometry (TOF-SIMS) T2 - 2012 International Hydrogen Conference CY - Moran, WY, USA DA - 2012-09-09 PY - 2012 AN - OPUS4-27593 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Herbst, Tristan A1 - Rübner, Katrin A1 - Müller, A. A1 - Seidemann, M. T1 - Verwertung kieselsäurehaltiger Filterrückstände in mineralischen Baustoffen T2 - GDCh-Tagung Bauchemie 2012 CY - Dübendorf, Switzerland DA - 2012-10-11 PY - 2012 SN - 978-3-936028-72-0 N1 - Serientitel: GDCh-Monographien – Series title: GDCh-Monographien VL - 45 SP - 149 CY - Frankfurt/M. AN - OPUS4-27600 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CHAP A1 - Stephan, Ina A1 - Gabsch, T. A1 - Dimke, Thomas A1 - Egel, Ellen ED - Gabsch, T. T1 - Schimmelpilzbewuchs auf Materialien in Anlehnung an zentralasiatische Wandmalereien aus dem 5./6. Jahrhundert n. Chr. KW - Kulturgut KW - Wandmalerei KW - Schimmel KW - Pilzbefall KW - Bindemittel KW - Farbpigmente PY - 2012 SN - 978-3-7338-0385-8 IS - Kap. 12 SP - 164 EP - 171 PB - Koehler & Amelang GmbH AN - OPUS4-27611 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Wöhlecke, Andreas A1 - Müller, Werner T1 - Prüfung der Funktion von Dichtungskontrollsystemen für Konvektionssperren in Deponieoberflächenabdichtungen N2 - Mit Dichtungskontrollsystemen (DKS) werden Konvektionssperren in Oberflächenabdichtungssystemen von Deponien kontrolliert. Die Funktionsfähigkeit eines eingebauten DKS muss in jedem Projekt zuvor überprüft werden. Diese projektspezifische Funktionsprüfung des DKS selbst wird am Beispiel der Verwendung mit einer Kunststoffdichtungsbahn (KDB) diskutiert. Der grundsätzliche Aufbau, die zugrunde liegenden Messprinzipien und das Ziel der Prüfung werden vorgestellt. Die Anforderungen an die nach der Deponieverordnung (DepV) zugelassenen Systeme hinsichtlich Betrieb, Leitungsfähigkeit und Konstruktion werden beschrieben. Dabei wird auf die Vorgaben der Richtlinie, die einer Zulassung zugrunde liegt, eingegangen. Das mögliche Vorgehen bei der projektspezifischen Kontrollprüfung im Hinblick auf Aspekte wie Vorgehensweise, Zeitpunkt und Randbedingungen sowie äußere Einflussfaktoren werden diskutiert.-------------------------------------------------------------------------------------------------------------------------------------------------------------- Leak detection systems (LDS) are used to control tight barriers in landfill cover systems. However, the efficiency of the installed LDS itself has to be verified in every landfill construction project. As an example the efficiency test for LDS used in connection with geomembranes is discussed in detail. The basic principles, the measuring techniques and objectives of the efficiency testing are described. The requirements for a certification of LDS under the terms of the new German landfill ordinance with regard to operation, capability and design are listed. The conditions necessary for a certification of LDS are introduced. Possible project related efficiency testing procedures with respect to the scope, time of convenience, general conditions as well as external influencing factors are discussed. KW - Dichtungskontrollsysteme KW - Deponieoberflächenabdichtungen KW - Kunststoffdichtungsbahn KW - Deponieverordnung KW - Funktionsprüfung KW - Leak detection systems KW - Landfill cover systems KW - Geomembranes KW - German landfill ordinance KW - Efficiency testing KW - Deponietechnik - Landfill technology KW - Qualitätssicherung - Quality Assurement KW - Umwelttechnik/Umweltschutz - Environmental Technology/Protection PY - 2012 U6 - https://doi.org/10.1002/bate.201200027 SN - 0932-8351 SN - 1437-0999 SN - 0005-6820 SN - 0341-1052 SN - 0932-6359 SN - 0932-8351 VL - 89 IS - 12 SP - 851 EP - 857 PB - Ernst & Sohn CY - Berlin AN - OPUS4-27612 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Dressler, M. A1 - Börnstein, Julian A1 - Meinel, M. A1 - Ploska, Ute A1 - Reinsch, Stefan A1 - Hodoroaba, Vasile-Dan A1 - Nicolaides, Dagmar A1 - Wenzel, Klaus-Jürgen T1 - Sol-gel preparation of calcium titanium phosphate: viscosity, thermal properties and solubility N2 - Calcium titanium phosphate (CTP) was prepared by the sol–gel route in order to prepare suitable coatings. This work addresses the question of how to prepare stable CTP sols. Their rheological properties as a function of process parameters like solid loading and water content are investigated. It was found that an increased solid loading as well as an increased water content lead to an increased initial viscosity as well as a more pronounced ageing induced viscosity rise. In addition, the thermal behavior of the resulting xerogels was analyzed. Furthermore, we studied the ion release behavior of the xerogels when brought in contact with water. Results suggest that calcium titanium phosphate shows a diffusion controlled ion release mode with a preferential release of Ca. KW - Calcium titanium phosphate KW - Sol-gel processing KW - Rheology KW - Thermal analysis KW - Coatings KW - Solubility PY - 2012 U6 - https://doi.org/10.1007/s10971-011-2653-y SN - 0928-0707 SN - 1573-4846 VL - 62 IS - 3 SP - 273 EP - 280 PB - Kluwer Academic Publ. CY - Dordrecht AN - OPUS4-27617 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Shabir Mahr, Muhammad A1 - Hübert, Thomas A1 - Schartel, Bernhard A1 - Bahr, Horst A1 - Sabel, Martin A1 - Militz, H. T1 - Fire retardancy effects in single and double layered sol-gel derived TiO2 and SiO2-wood composites N2 - Sol–gel derived TiO2 and SiO2-wood inorganic composites are prepared by direct vacuum infiltration of silicon and titanium alkoxide based precursors in pine sapwood in one or two cycles followed by a controlled thermal curing process. The resulting flame retardancy effect is investigated under two different fire scenarios using cone calorimetry and oxygen index (LOI). Heat release rates (HRR) especially the values for the second peak, are reduced moderately for all single layered composites. This effect is more pronounced for double layered composites where HRR was reduced up to 40 % showing flame retardancy potential in developing fires. Beside this, smoke release was lowered up to 72 % indicating that these systems had less fire hazards compared to untreated wood, whereas no meaningful improvement is realized in terms of fire load (total heat evolved) and initial HRR increase. However impressively, the LOI of the composites were increased up to 41 vol% in comparison to 23 vol% for untreated wood displaying a remarkable flame retardancy against reaction to a small flame. An approximate linear interdependence among the fire properties and the material loading as well as fire residue was observed. A residual protection layer mechanism is proposed improving the residue properties for the investigated composites. KW - Wood KW - Sol-gel KW - Composite materials KW - Cone calorimeter KW - Fire retardance KW - Flammability PY - 2012 U6 - https://doi.org/10.1007/s10971-012-2877-5 SN - 0928-0707 SN - 1573-4846 VL - 64 IS - 2 SP - 452 EP - 464 PB - Kluwer Academic Publ. CY - Dordrecht AN - OPUS4-27618 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Bäßler, Ralph A1 - Sarmiento Klapper, H. A1 - Burkert, Andreas T1 - Korrosionsbeständigkeit von Werkstoffen für den Einsatz in Geothermieanlagen N2 - Für den sicheren und zuverlässigen Betrieb von Geothermieanlagen ist, aufgrund der extremen Betriebsbedingungen, die Werkstoffauswahl für bohr- und verfahrenstechnische Einrichtungen entscheidend. Es werden die im Rahmen der Werkstoffqualifizierung für zwei hochlegierte Stähle durch elektrochemische Untersuchungen und klassische Auslagerungsversuche ermittelten Einsatzgrenzen im Bereich geothermischer Tiefenbohrungen für die Förderung des hochsalinen Aquiferfluids von Groß Schönbeck dargestellt. KW - Korrosion KW - Geothermie PY - 2012 SN - 0948-6615 VL - 21 IS - 74 SP - 26 EP - 29 PB - GtV-Service GmbH CY - Berlin AN - OPUS4-27620 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CHAP A1 - Wehrstedt, Klaus-Dieter A1 - Wandrey, Peter-Andreas A1 - Mix, K.-H. ED - Hauptmanns, U. T1 - Explosive condensed substances KW - Explosive condensed substances KW - Classification of explosive substances KW - Explosion mechanisms KW - Testing of explosive substances PY - 2012 SN - 978-3527306732 IS - Chapter 5 SP - 22 EP - 25 PB - Wiley-VCH Verlag GmbH & Co. KGaA CY - Weinheim AN - OPUS4-27654 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Holzweber, Markus A1 - Unger, Wolfgang A1 - Hutter, H. A1 - Pittenauer, E. T1 - Donor-Acceptor Interaction Scale for Ionic Liquids based on ToF-SIMS experiments N2 - Room temperature ionic liquids (RTIL) are composed of ions only and are defined as molten salts with a melting point below 100°C1. They have numerous interesting physical properties such as high thermal stability, a wide liquid range and a tuneable viscosity. Besides their low melting points they have also a very low vapour pressure, which enables their analysis in ultra high vacuum devices such as XPS2, 3 and ToF-SIMS2, 4. A systematic study with different ionic liquids was carried out by means of time-of-fight secondary-ion-mass-spectrometry in positive and negative ion mode. Thereby a variation of the anion in 1-butyl-3-methylimidazolium based ionic liquids, a variation of the cation including a variation of the side chain length, in bis(triuoromethylsulfonyl)imide based ionic liquids was taken into account. The compounds were measured under bismuth cluster ion (Bi7+) bombardment, and spectral information and general rules for the fragmentation pattern are presented. Evidence for cation-anion interactions (e.g. hydrogen bonding), due to high molecular secondary cluster ions, could be found. The interaction strength could be estimated by ToF-SIMS via correlation of the secondary anion intensity to secondary cluster ion intensity ratio with donor and acceptor numbers. T2 - AOFA 17 CY - Soest, Germany DA - 2012-09-23 PY - 2012 AN - OPUS4-27657 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Bonse, Jörn A1 - Krüger, Jörg A1 - Höhm, S. A1 - Rosenfeld, A. T1 - Femtosecond laser-induced periodic nanostructures T2 - International workshop on "Laser micro and nano structuring: Fundamentals et applications" CY - Paris, France DA - 2012-12-10 PY - 2012 AN - OPUS4-27659 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Bonse, Jörn A1 - Seuthe, T. A1 - Grehn, M. A1 - Mermillod-Blondin, A. A1 - Eichler, H. J. A1 - Eberstein, M. T1 - Femtosecond laser pulse modification of binary lithium silicate glasses T2 - International workshop on "Laser micro and nano structuring: Fundamentals et applications" CY - Paris, France DA - 2012-12-10 PY - 2012 AN - OPUS4-27660 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Bienert, K. A1 - Schalk, H. A1 - Molkenthin, A. A1 - Wilsch, Gerd A1 - Goldschmidt, Sebastian A1 - Niederleithinger, Ernst T1 - Qualitätskontrolle von Hydrophobierungen mit einem integrierten Markerelement durch die laser-induced breakdown spectroscopy (LIBS) T2 - 18. Ibausil - Internationale Baustofftagung CY - Weimar, Germany DA - 2012-09-12 KW - Hydrophobierung KW - Markerelement KW - Qualitätskontrolle KW - Eindringtiefe KW - Betonreparatur KW - Lochfraßkorrosion KW - Chloride KW - Frost-Tausalz-Wechsel KW - LIBS PY - 2012 SN - 978-3-00-034075-8 VL - 2 IS - 3.07 SP - 2-0398 - 2-0409 AN - OPUS4-27601 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Woydt, Mathias A1 - Scholz, Christian A1 - Manier, Charles-Alix A1 - Brückner, A. A1 - Weihnacht, V. T1 - Slip-rolling resistance of ta-C and a-C coatings up to 3,000 MPa of maximum Hertzian contact pressure N2 - The slip-rolling resistances of hard and stiff thin films under high Hertzian contact pressures can be improved by optimizing the 'coating/substrate systems'. It is known from former investigations that the so-called 'egg-shell' effect is no general hindrance for high slip-rolling resistance of thin hard coatings. The coating stability depends more on specific deposition process and coating/substrate interface design. In this article it is experimentally shown, that pure amorphous carbon thin films with hardness between 15 and 63 GPa can be slip-rolling resistant several million load cycles under a maximum Hertzian contact pressures of up to 3.0 GPa. Whereas all coatings were stable up to 10 million load cycles in paraffin oil at room temperature, reduced coating lifetime was found in SAE 0W-30 engine oil at 120°C. It was shown how the coating hardness and the initial coating surface roughness influence the running-in process and coating lifetime. No clear correlation between coating hardness and coating lifetime could be observed, but friction coefficients seem to be reduced with higher coating hardness. Very low friction down to ~0.03 in unmodified engine oils was found for the hardest ta-C film.------------------------------------------------------------------------------------------------------------------------------------------------ Die Wälzbeständigkeit von harten und steifen Dünnschichten unter hohen Hertzschen Kontaktpressungen kann durch die Optimierung des 'Beschichtung/Substrat Systems' deutlich verbessert werden. Aus vorangegangenen Untersuchungen ist bekannt, dass der so genannte 'Eierschaleneffekt' kein generelles Hindernis für eine hohe Wälzbeständigkeit für harte Dünnschichten darstellen muss. Die Stabilität der Beschichtungen hängt vielmehr von dem spezifischen Prozessparametern und dem Schicht/Substrat Grenzflächendesign ab. In diesem Artikel wird experimentell nachgewiesen, dass reine amorphe Kohlenstoffdünnschichten mit Härtewerten zwischen 15 und 63 GPa für mehrere Millionen Lastzyklen unter maximalen Hertzschen Kontaktpressungen bis 3.0 GPa überrollbeständig sein können. Während alle Beschichtungen bis 10 Millionen Lastzyklen in Paraffinöl bei Raumtemperatur keine Defekte aufweisen wurde unter Verwendung eines SAE 0W-30 Motorenöls bei 120°C eine Verringerung der Überrollbeständigkeit nachgewiesen. Es wurde nachgewiesen, wie die Schichthärte und ursprüngliche Oberflächenrauheit der Beschichtung den Einlaufprozess und die Lebensdauer beeinflussen. Es konnte keine offensichtliche Korrelation zwischen Schichthärte und Lebensdauer festgestellt werden, allerdings wurde eine scheinbare Reduktion des Reibwertes mit steigender Schichthärte beobachtet werden. Dabei zeigte die härteste ta-C Schicht unter Verwendung des Motorenöls sehr geringe Reibwerte mit ~0.03. KW - ta-C KW - a-C KW - Friction KW - Wear KW - Slip-rolling KW - Rolling contact fatigue KW - Reibung KW - Verschleiß KW - Wälzen KW - Rollkontaktermüdung PY - 2012 U6 - https://doi.org/10.1002/mawe.201200956 SN - 0933-5137 SN - 1521-4052 VL - 43 IS - 12 SP - 1019 EP - 1028 PB - Wiley-VCH Verl. CY - Weinheim AN - OPUS4-27602 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Gabriel, Stefan A1 - Weidner, Steffen A1 - Panne, Ulrich A1 - Schwarzinger, C. T1 - Seperation effects caused by dried-droplet sample preparation in MALDI mass spectrometry of polymers T2 - MACRO BeGE 2012 CY - Houffalize, Belgium DA - 2012-12-03 PY - 2012 AN - OPUS4-27603 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Maul, Ronald A1 - Warth, B. A1 - Kant, Jill-Sandra A1 - Schebb, N.H. A1 - Krska, R. A1 - Koch, Matthias A1 - Sulyok, M. T1 - Investigation of the hepatic glucuronidation pattern of the fusarium mycotoxin deoxynivalenol in various species N2 - Deoxynivalenol (DON) is one of the most abundant mycotoxins contaminating food and feed worldwide. Upon absorption, the major portion of the toxin is excreted by humans and animal species as glucuronide. However, consistent in vitro data on DON glucuronidation are lacking. In the present study, the metabolism of DON was investigated using liver microsomes from humans and six different animal species. It was shown that all animal and human liver microsomes led to the formation of up to three different mono-O-glucuronides with significant interspecies differences. While the activity of human liver microsomes was low (0.8 to 2.2 pmol·min–1·mg–1), bovine liver and rat liver microsomes conjugated DON with activities of 525 pmol·min–1·mg–1 and 80 pmol·min–1·mg–1, respectively. KW - Deoxynivalenol KW - Hepatic metabolism KW - Microsomes KW - Glucuronidation KW - Inter-species comparison PY - 2012 U6 - https://doi.org/10.1021/tx300348x SN - 0893-228X SN - 1520-5010 VL - 25 IS - 12 SP - 2715 EP - 2717 PB - Soc. CY - Washington, DC, USA AN - OPUS4-27604 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CHAP A1 - Woydt, Mathias ED - Tung, S.C. ED - Totten, G.E. T1 - Nonpetroleum-based, no/low-sulphur, ash, and phosphorus, and bio-no-toxicity engine oil development and testing PY - 2012 SN - 978-0-8031-7036-0 IS - Chapter 18 SP - 317 EP - 329 CY - West Conshohocken, PA, USA AN - OPUS4-27605 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Girod, Matthias A1 - Weidner, Steffen A1 - Thünemann, Andreas T1 - Online characterization of silver nanoparticles from continuous synthesis with scattering methods T2 - HZB User Meeting 2012 CY - Berlin, Germany DA - 2012-12-12 PY - 2012 AN - OPUS4-27606 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Löhnert, Andrea A1 - Knaust, Christian A1 - Rabe, Frederik A1 - Krause, U. T1 - Numerical and Experimental Investigation of Fire Smoke Toxicity T2 - Fire Computer Modeling 2012 CY - Santander, Spain DA - 2012-10-18 PY - 2012 AN - OPUS4-27607 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Löhnert, Andrea A1 - Rabe, Frederik A1 - Knaust, Christian A1 - Krause, U. T1 - Visualisation of smoke depending on its toxic potential and optical properties T2 - Fire Safety Day 2012 CY - Lund, Sweden DA - 2012-04-18 PY - 2012 AN - OPUS4-27608 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Wachsmuth, Janne A1 - Malikoutsakis, M. A1 - Savaidis, G. A1 - Savaidis, A. A1 - Bohse, Jürgen T1 - Corrosion and fatigue crack monitoring by means of acoustic emission for application in transportation means KW - Acoustic emission KW - Health monitoring KW - Fatigue crack growth KW - Corrosion KW - Finite elements KW - Welds PY - 2012 SN - 1943-3514 VL - 5 IS - 1 SP - 9 EP - 17 PB - Global Scientech CY - Basking Ridge, NJ, USA AN - OPUS4-27610 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Beck, Uwe A1 - Mix, Renate A1 - Hielscher, Stefan T1 - Vergleichende Bestimmung der Haft- und Klebefestigkeit modifizierter Kunststoffoberflächen mittels Zentrifugentechnologie und konventioneller Prüfmethoden T2 - Fachtagung RWTH Aachen "Plasmen in der Kunststoffverarbeitung" CY - Aachen, Germany DA - 2012-12-04 PY - 2012 AN - OPUS4-27664 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Miccoli, Lorenzo T1 - Earthen materials: analysis and conservation T2 - International Colloquium on Conservation of Historical, Monumental and Aracheological Sites 2012 CY - Rome, Italy DA - 2012-07-19 PY - 2012 AN - OPUS4-27665 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Naumann, Annette A1 - Stephan, Ina A1 - Noll, Matthias T1 - Material resistance of weathered wood-plastic composites against fungal decay N2 - Material performance testing of wood-plastic composites (WPC) requires adequate and time-efficient evaluation of the resistance against fungal colonisation and decay. This study investigates the effects of weathering on WPCs and subsequent material degradation by fungi. Weathering using UV radiation, water spray and repeated frost incidents caused micro- and macro-cracks. Fourier transform infrared spectroscopy (FTIR) demonstrated delignification of wood particles at the weathered WPC surface. Despite of increased surface area, accessibility for fungal hyphae and moisture content, weathering enhanced mass loss due to fungal decay only subtly but not significantly. These potentially enhancing effects for fungal decay are assumed to be outbalanced by delignification due to photo-oxidation and leaching of degradation products resulting in loss of nutrient sources essential for fungal growth. KW - Weathering KW - Fungal decay KW - Fourier transform infrared - attenuated total reflexion (FTIR-ATR) spectroscopy KW - Microscopy KW - Wood-plastic composite (WPC) PY - 2012 U6 - https://doi.org/10.1016/j.ibiod.2012.08.004 SN - 0964-8305 VL - 75 SP - 28 EP - 35 PB - Elsevier CY - Barking AN - OPUS4-27670 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Müller, Urs A1 - Ziegert, C. A1 - Kaiser, C. A1 - Röhlen, U. T1 - Eigenschaften industrieller Lehmbauprodukte für den Mauerwerksbau und Verhalten von Lehmsteinmauerwerk N2 - Der Beitrag gibt einen Überblick über die Eigenschaften industriell hergestellter Bauprodukte aus Lehm für den Mauerwerksbau. Die Qualität der industriellen Fertigung dieser Produktgruppe hat inzwischen einen Stand erreicht, der vergleichbar mit dem anderer Bauprodukte ist. Lehm-Putzmörtel gibt es als Universalputze für ein- oder mehrlagige Anwendung oder in Form von Unter-, Ober- oder Feinputzen. Lehmsteine werden in verschiedenen Größen und mit Lochung angeboten. Die mechanischen Eigenschaften verschiedener Lehmsteinsorten sind geprägt durch Druckfestigkeiten bis 11 N/mm2, mit üblichen Werten bei 2 bis 5 N/mm2. Ein kritischer Punkt ist die Abhängigkeit der Festigkeitseigenschaften der Lehmsteine von der Materialfeuchte. Die vorliegenden Untersuchungen haben jedoch gezeigt, dass in einem Luftfeuchtebereich von 40 bis 70 % RLF die Druckfestigkeit von Lehmsteinen verhältnismäßig konstant ist. Mauerwerk, errichtet mit Lehmsteinen und Lehm-Mauermörtel, zeigt ähnliche Druckfestigkeiten und E-Module wie Mauerwerk, das mit Porenbetonsteinen errichtet wurde. Infolge einer geringeren Haftscherfestigkeit zwischen Lehmmörtel und Lehmstein ist die Schubfestigkeit von Lehmsteinmauerwerk vergleichsweise niedrig.------------------------------------------------------------------------------------------------------------------------------------- Properties of industrially produced earthen building products for masonry and behaviour of earth block masonry. The contribution gives an overview of the properties of industrially produced earthen building products for masonry. In the meantime the quality of the industrial production of this group of building materials reached a level similar to that of other products for construction. Earth plasters exist as plasters for universal, one or multi layer applications or as lower, upper or finish plasters. Earth blocks are provided in different sizes and with different perforations. The mechanical properties of different earth block types are signified by compressive strength of up to 11 N/mm2 but are typically in a range between 2 and 5 N/mm2. A critical point is the correlation of the strength of earthen materials with their moisture content. Results from earth blocks showed that in a relative humidity window between 40 and 70 % rh the compressive strength of earth blocks is fairly constant. Masonry made from earth block and earth mortar exhibited compressive strength and elastic modules similar to masonry made with aerated autoclaved concrete blocks. The shear strength of earth block masonry, however, is fairly low, due to the weak bond between earth block and earth mortar. PY - 2012 U6 - https://doi.org/10.1002/dama.201200527 SN - 1432-3427 SN - 1437-1022 VL - 16 IS - 1 SP - 17 EP - 28 PB - Ernst CY - Berlin AN - OPUS4-27744 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Polami, S.M. A1 - Rethmeier, Michael A1 - Schmid, A. T1 - Friction welding of drive pinions for heavy-duty trucks T2 - 5. VDI-Fachtagung Welle-Nabe-Verbindungen CY - Nürtingen, Germany DA - 2012-09-25 PY - 2012 SN - 978-3-18-092176-1 SN - 0083-5560 N1 - Serientitel: VDI-Berichte – Series title: VDI-Berichte VL - 2176 SP - 211 EP - 219 PB - VDI-Verl. CY - Düsseldorf AN - OPUS4-27749 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Gravenkamp, Hauke A1 - Song, C. A1 - Prager, Jens T1 - Numerical computation of dispersion relations in wave guides N2 - In this paper a numerical approach, based on the Scaled Boundary Finite Element Method (SBFEM), is described to obtain dispersion relations for propagating modes in wave guides. While the formulation is developed for plate structures, it can easily be extended to wave guides with arbitrary cross-section. The cross-section is discretized in the Finite Element sense while all equations remain analytical in the direction of propagation. The wave numbers of all propagating modes are obtained as the solutions of a standard eigenvalue problem. The group velocities can be calculated accurately as the eigenvalue derivatives. The use of higher-order elements drastically increases the efficiency and accuracy of the computation. This approach can be used for wave guides with arbitrary distribution of material parameters. KW - Guided waves KW - Dispersion KW - Group velocity KW - Scaled boundary finite element method PY - 2012 U6 - https://doi.org/10.1002/pamm.201210256 SN - 1617-7061 VL - 12 IS - 1 SP - 535 EP - 536 PB - Wiley-VCH Verl. CY - Weinheim AN - OPUS4-27750 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Meyer-Scherf, Ronald A1 - Gröschl, Christian A1 - Holtappels, Kai T1 - High Pressure Hydrogen Storage in Glass Structures T2 - WHEC World Hydrogen and Energy Conference 2012 CY - Toronto, Canada DA - 2012-06-03 PY - 2012 N1 - Geburtsname von Meyer-Scherf, Ronald: Meyer, R. - Birth name of Meyer-Scherf, Ronald: Meyer, R. AN - OPUS4-27701 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Trappe, Volker A1 - Günzel, Stephan A1 - Goebbels, Jürgen T1 - Zerstörungsfreie Charakterisierung des Schädigungszustandes von Kurzglasfaserverstärkten Thermoplasten mit Röntgenverfahren T2 - DACH-Jahrestagung 2012 CY - Graz, Austria DA - 2012-09-17 KW - Kurzfaserverstärktes Polyamid KW - ZfP mit Röntgenverfahren KW - Mikrorissbildung KW - Schädigungsverhalten PY - 2012 SN - 978-3-940283-44-3 IS - DGZfP-BB 136 SP - Mo.3.C.4., 1 EP - 6 AN - OPUS4-27704 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Herter, Jürgen ED - Biondini, F. ED - Frangopol, D.M. T1 - Inspection strategies to prevent fatigue failure of gusset plates in steel truss bridges T2 - IABMAS 2012 - 6th International conference on bridge maintenance, safety and management CY - Stresa, Lake Maggiore, Italy DA - 2012-07-08 KW - Fatigue failure KW - Steel truss bridges KW - Gusset plates PY - 2012 SN - 978-0-415-62124-3 SN - 978-0-203-10338-8 SP - 1428 EP - 1435 PB - CRC Press CY - London, UK AN - OPUS4-27706 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Richter, Regina A1 - Kreutzbruck, Marc A1 - Maierhofer, Christiane T1 - Untersuchungen zur 2D- und 3D-Rekonstruktion von Rückwandgeometrien in der Impuls-Thermografie T2 - DACH-Jahrestagung 2012 CY - Graz, Austria DA - 2012-09-17 KW - Rekonstruktion KW - Inverse Probleme KW - Defekte PY - 2012 SN - 978-3-940283-44-3 IS - DGZfP-BB 136 SP - Poster 33, 1 EP - 8 AN - OPUS4-27694 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Mizaikoff, B. A1 - Lämmerhofer, M. A1 - Broekaert, J.A.C. A1 - Popp, J. A1 - Lendl, B. A1 - Leopold, K. A1 - Scheller, F.W. A1 - Yarman, A. A1 - Schumacher, S. A1 - Plumeré, N. A1 - Hennig, Andreas A1 - Nau, W. A1 - Kranz, C. A1 - Einax, J.W. T1 - Trendbericht - Analytische Chemie 2010/2011 N2 - Mit Nanoporen detektieren elektrochemische Biosensoren einzelne Moleküle, Nanopartikel aus molekular geprägten Polymeren erkennen Proteine und Nukleinsäuren, und Nanostrukturen verstärken die Signale in der Ramanspektroskopie. Kleiner wurden auch die Säulenmaterialien für die Flüssigkeits- chromatographie: Partikeldurchmesser liegen unterhalb von 3 µm, Porendurchmesser im 10-nm- Bereich. Nano ist aber nur ein Thema der Forschung in der analytischen Chemie. Der Trendbericht stellt in diesem Jahr auch Rastersondenmethoden und ihre Kombinationen vor, leistungsstarke Lichtquellen und neue Methoden in der Schwingungsspektroskopie, Alternativen zum induktiv gekoppelten Plasma und Atomabsorptionsspektroskopie in der Routineanalytik sowie Anwendungen in der Chemometrik. PY - 2012 U6 - https://doi.org/10.1002/nadc.201290145 SN - 1439-9598 SN - 1521-3854 VL - 60 IS - 4 SP - 406 EP - 420 PB - Wiley-VCH Verl. CY - Weinheim AN - OPUS4-27695 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Waegner, M. A1 - Schröder, M. A1 - Suchaneck, G. A1 - Sturm, Heinz A1 - Weimann, Christiane A1 - Eng, L.M. A1 - Gerlach, G. T1 - Enhanced piezoelectric response in nano-patterned lead zirconate titanate thin films N2 - In this work, Pb(Zr,Ti)O3 thin films were used to fabricate well-ordered nanodot arrays by means of nanosphere lithography. This technique is based on a two-step etch process that enables excellent control of the fabrication of ordered nanodisc arrays of defined height, diameter, and pitch. Piezoresponse force microscopy was used to investigate both non-patterned and patterned films. The topography and both the out-of-plane and the in-plane polarization were deduced in this mode. Grains of nanodots with a low aspect ratio form domain structures comparable to domains in non-patterned two-dimensional films. In contrast, nanodots with a higher aspect ratio form particular structures like bi-sectioned domain assemblies, c-shaped domains or multi-domains surrounding a center domain. The patterning of the ferroelectric material was shown to affect the formation of ferroelectric domains. The initial polycrystalline films with random polarization orientation re-orient upon patterning and then show domain structures dependent on the nanodisc diameter and aspect ratio. PY - 2012 U6 - https://doi.org/10.1143/JJAP.51.11PG04 SN - 0021-4922 VL - 51 SP - 11PG04-1 - 11PG04-5 CY - Tokyo AN - OPUS4-27697 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Holtappels, P. A1 - Krause, Andreas A1 - Dame, Kai A1 - Eliezer, D. T1 - A new storage technology for compressed hydrogen based on glass structures. T2 - World Hydrogen and Energy Conference 2012 WHEC 2012 CY - Toronto, Canada DA - 2012-06-03 PY - 2012 AN - OPUS4-27700 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Ünal, Murat A1 - Kühne, Hans-Carsten T1 - Repair and Restoration of "Dalle de Verre" Concrete Windows T2 - ICCRRR 2012 - 3rd International Conference on Concrete Repair, Rehabilitation and Retrofitting CY - Cape Town, South Africa DA - 2012-09-03 PY - 2012 AN - OPUS4-27673 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Kannengießer, Thomas A1 - Lausch, Thomas T1 - Diffusible hydrogen content depending on welding and cooling parameters KW - MAG welding KW - Hydrogen KW - Measurement KW - Cold cracking KW - Hydrogen embrittlement KW - Cooling rate PY - 2012 SN - 0043-2288 SN - 1878-6669 VL - 56 IS - 11/12 SP - 26 EP - 33 PB - Springer CY - Oxford AN - OPUS4-27677 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Lucassen, F. A1 - Franz, G. A1 - Wirth, R. A1 - Weise, Matthias A1 - Hertwig, Andreas T1 - The morphology of the reaction front of the dissolution-precipitation reaction rutile + wollastonite = titanite in time series experiments at 600 °C/400 MPa N2 - Fluid-assisted mass transport reactions by dissolution-precipitation, where a precursor mineral reacts with a fluid, play an important role in metamorphism and metasomatism. We investigated titanite growth on rutile in time series experiments between one and 107 days at constant P-T conditions of 600 °C and 400 MPa in the system TiO2-CaO-SiO2-Na2O-HCl-H2O. A two-capsule assemblage allows for transport of Ca and Si from dissolving wollastonite to dissolving rutile, the Ti-source, in a NaCl-bearing aqueous fluid, according to the general reaction CaSiO3 + TiO2 = CaTiSiO5. Complete overgrowth of rutile by titanite occurred after just one day of experiment. Fine-grained lozenge-shaped titanite crystals of short-time runs (up to 14 days) reorganize to larger predominantly prismatic crystals after >14 days. After investigation by scanning electron microscopy, the titanite overgrowth was removed from the rutile by hydrofluoric acid, to provide a three-dimensional view of the dissolution-reaction front on the rutile surface. The morphology of the rutile surface is dominated by humps or ridges beneath the central region of a titanite crystal and valleys at the grain boundaries between adjacent titanite crystals. The dissolution pattern on the rutile surface mimics the titanite overgrowth and changes with changing grain size and shape of the titanite with longer run times. The preferred dissolution of rutile in the valleys is clearly linked to the position of the titanite grain boundaries, which served as pathways for fluid-assisted element transport. Rutile-titanite and titanite-titanite boundaries show a significant porosity in transmission electron microscopy images of foils prepared by focused ion beam milling. The large-scale dissolution pattern on the rutile surface is independent of the crystallographic orientation of the rutile and entirely dominated by the arrangement of titanite crystals in the overgrowth. Dissolution features on a scale smaller than ~1 µm are dominated by stepwise dissolution and etch-pits following the crystallographic orientation of the rutile. Similar observations were made in experiments with an additional Al-source, although these experiments result in a different overgrowth pattern; i.e., an exposed rutile surface is always present and solitary titanite crystals are accompanied by partial overgrowths. Quantitative characterization of the surface morphology by white-light interference microscopy demonstrates that, with increasing grain size of titanite, dissolution of rutile is strongly enhanced at the titanite grain boundaries. Natural examples of titanite overgrowths on rutile show the same relations between element pathways, arrangement of titanite crystals and 3D dissolution pattern on rutile as in the experimental systems. We conclude that the transport of Ti away from the rutile and of Ca + Si into the reaction rim occurred in a grain boundary fluid, the composition of which must have been strongly different from the composition of the bulk fluid in the experiment, as well as in the natural system. The reaction progress depends on the availability of a fluid, and relicts of rutile in titanite indicate restricted availability of fluid in the natural system (e.g., a fluid pulse that was consumed by the reactions). The reaction examined here can serve as a proxy for other reactions of the conversion of oxide minerals (e.g., spinel or corundum) into silicates. KW - Experimental mineralogy KW - Rutile KW - Titanite KW - Dissolution-precipitation KW - Reaction morphology KW - Geochemistry & Geophysics PY - 2012 U6 - https://doi.org/10.2138/am.2012.3742 SN - 0003-004X SN - 1945-3027 VL - 97 IS - 5-6 SP - 828 EP - 839 PB - Mineralogical Society of America CY - Washington, DC AN - OPUS4-27680 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Behnke, Thomas A1 - Laux, Eva-Maria A1 - Hoffmann, Katrin A1 - Peters, S. A1 - Haueisen, J. A1 - Klemm, M. A1 - Resch-Genger, Ute T1 - Simple approaches to fluorescence lifetime standards using dye-quencher pairs N2 - Photoluminescence techniques are amongst the most widely used tools in the material and life sciences, with new and exciting applications continuously emerging. Advantages include their comparative ease of use, unique sensitivity, non-invasive character, and potential for multiplexing, remote sensing, and miniaturization. Increasing applications of fluorescence techniques in the life sciences and emerging medical applications of fluorescence microscopic techniques including 1P and 2P fluorescence microscopy combined with fluorescence lifetime imaging (FLIM) in e.g. in vivo eye diagnostics boosted the demand for robust, easy-to-use, and reliable fluorescence standards to ensure the reliability and comparability of fluorescence data. This includes fluorescence standards for the consideration of instrument-specific spectral and intensity distortions of measured signals and instrument performance validation, fluorescence intensity standards for the quantification of measured intensities and for signal referencing, and lately, also fluorescence lifetime standards. T2 - BMT 2012 - 46. DGBMT Jahrestagung CY - Jena, Germany DA - 16.09.2012 PY - 2012 U6 - https://doi.org/10.1515/bmt-2012-4499 SN - 0013-5585 SN - 1862-278X VL - 57 IS - Suppl. 1 SP - 613 PB - De Gruyter CY - Berlin AN - OPUS4-27682 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Erthner, Thomas A1 - Kreutzbruck, Marc A1 - Neubauer, Andreas T1 - Miniaturisierte Mehrkanalelektronik für die magnetische Streuflussprüfung T2 - DGZfP-Jahrestagung 2012 CY - Graz, Austria DA - 2012-09-17 PY - 2012 AN - OPUS4-27684 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Giesen, C. A1 - Müller, Larissa A1 - Panne, Ulrich A1 - Jakubowski, Norbert T1 - History of inductively coupled plasma mass spectrometry-based immunoassays N2 - The analysis of biomolecules requires highly sensitive and selective detection methods capable of tolerating a complex, biological matrix. First applications of biomolecule detection by ICP-MS relied on the use of heteroelements as a label for quantification. However, the combination of immunoassays and ICP-MS facilitates multiparametric analyses through elemental tagging, and provides a powerful alternative to common bioanalytical methods. This approach extends the detection of biomarkers in clinical diagnosis, and has the potential to provide a deeper understanding of the investigated biological system. The results might lead to the detection of diseases at an early stage, or guide treatment plans. Immunoassays are well accepted and established for diagnostic purposes, albeit ICP-MS is scarcely applied for the detection of immune-based assays. However, the screening of biomarkers demands high throughput and multiplex/multiparametric techniques, considering the variety of analytes to be queried. Finally, quantitative information on the expression level of biomarkers is highly desirable to identify abnormalities in a given organism. Thus, it is the aim of this review to introduce the fundamentals, and to discuss the enormous strength of ICP-MS for the detection of different immunoassays on the basis of selected applications, with a special focus on LA-ICP-MS. KW - ICP-MS KW - LA-ICP-MS KW - Immunoassay KW - Elemental tagging KW - Multiplexing PY - 2012 U6 - https://doi.org/10.1016/j.sab.2012.06.009 SN - 0584-8547 SN - 0038-6987 N1 - Geburtsname von Müller, Larissa: Wäntig, L. - Birth name of Müller, Larissa: Wäntig, L. VL - 76 SP - 27 EP - 39 PB - Elsevier CY - Amsterdam AN - OPUS4-27686 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Herter, Jürgen T1 - Inspection Strategies to prevent Fatigue Failure of Gusset Plates in Steel Truss Bridges T2 - IABMAS 2012, 6th International Conference on Bridge Maintenance, Safety and Management CY - Stresa, Italy DA - 2012-07-08 PY - 2012 AN - OPUS4-27688 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Gnutzmann, Tanja A1 - Rademann, K. A1 - Emmerling, Franziska T1 - Fast crystallization of organic glass formers N2 - An unusually fast crystallization of the organic glass former nifedipine has been observed. The crystallization process, starting from an amorphous film to crystalline material, was investigated by time resolved Raman microspectroscopy. The crystallization rates of the initially crystallizing metastable β-form are four orders of magnitude higher than those of previous studies. KW - Polymorphism KW - Raman spectroscopy KW - Crystallization KW - Nifedipine PY - 2012 U6 - https://doi.org/10.1039/c1cc16301a SN - 0022-4936 SN - 0009-241x SN - 1359-7345 SN - 1364-548x VL - 48 SP - 1638 EP - 1640 PB - Royal Society of Chemistry CY - Cambridge AN - OPUS4-27735 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Müller, Bernd R. A1 - Lange, Axel A1 - Hentschel, Manfred P. A1 - Kupsch, Andreas T1 - Numerische Korrektur des Hinterleuchtens von Röntgendetektoren N2 - Eine neuartige Korrektur artefaktisch gemessener Intensitäten von Röntgenflachdetektoren wird vorgeschlagen. Die betrachteten Artefakte betreffen eine diffuse Umverteilung der Intensität und führen zu beträchtlichen Verfälschungen der wahren Schwächung und verletzen mithin das Lambert-Beer'sche Gesetz. Sie werden sowohl in Laborexperimenten mit Röntgenröhren (polychromatische Einstrahlung) als auch mit monochromatischer Synchrotronstrahlung bei Einsatz indirekt konvertierender Detektionssysteme (Fluoreszenzschirm, Optik, CCD-Chip) beobachtet. Dieser Effekt wird als Hinterleuchten bezeichnet. In der vorgestellten Studie werden mittels wohldefinierter Randbedingungen Gesetzmäßigkeiten des Hinterleuchtens untersucht: durch Einsatz monochromatischer Strahlung können Aufhärtungseffekte als Ursache ausgeschlossen werden. Das Hinterleuchten ist umso stärker ausgeprägt, je weniger Detektorfläche vom Objekt abdeckt wird und je stärker das Objekt schwächt. Mit Blick auf Tomographien ergibt sich eine Modulation der 'Dichte' als Funktion des Projektionswinkels, deren Amplitude mit dem Objektumfang steigt (Dynamik). Der isotrope und homogene Ansatz zur numerischen Korrektur macht lediglich Gebrauch von Intensitätsmittelwerten und stellt die Gültigkeit des Schwächungsgesetzes in modifizierter Form wieder her. T2 - DACH-Jahrestagung 2012 CY - Graz, Austria DA - 2012-09-17 KW - Röntgendetektor KW - Hinterleuchten PY - 2012 SN - 978-3-940283-44-3 IS - DGZfP-BB 136 SP - P 13 / Mo.4.B, 1 EP - 7 AN - OPUS4-27737 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CHAP A1 - Krause, U. A1 - Rabe, Frederik A1 - Knaust, Christian ED - Schmidt, J. T1 - Modeling fire scenarios and smoke migration in structures KW - Modeling fire scenarios KW - Field models KW - Fire dynamics simulator (FDS) KW - ANSYS CFX PY - 2012 SN - 978-3-527-33027-0 U6 - https://doi.org/10.1002/9783527645725.ch10 IS - Chapter 10 SP - 159 EP - 177 PB - Wiley-VCH Verlag GmbH & Co. KGaA AN - OPUS4-27738 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Guilherme, A. A1 - Buzanich, Günter A1 - Carvalho, M.L. T1 - Focusing systems for the generation of X-ray micro beam: An overview N2 - This manuscript reviews the most used optical systems for X-ray microprobes and summarizes the experiences in research with synchrotron radiation as well as with X-ray tube generators. The need for smaller beam spot sizes for various applications and the unique properties of X-rays have induced a remarkable and fast development in X-ray optical systems. These systems are divided into three main categories: diffractive, reflective and refractive. Examples of the three will be covered in this paper, highlighting the properties that allow having spot sizes down to sub-micrometer regime. However, the extraordinary capabilities of such systems are always relative. Therefore, an overview of the techniques that use such optical systems will be given, emphasizing their applicability on several case studies. KW - X-ray optic KW - K–B mirror KW - Capillary KW - Compound refractive lens KW - Fresnel zone plate PY - 2012 U6 - https://doi.org/10.1016/j.sab.2012.07.021 SN - 0584-8547 SN - 0038-6987 VL - 77 SP - 1 EP - 8 PB - Elsevier CY - Amsterdam AN - OPUS4-27722 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Rodrigues, M. A1 - Schreiner, M. A1 - Melcher, M. A1 - Guerra, M. A1 - Salomon, J. A1 - Radtke, Martin A1 - Alram, M. A1 - Schindel, N. T1 - Analysis of the hoard of Becin using X-ray-based techniques N2 - Four hundred and sixteen silver coins stemming from the Ottoman Empire (16th and 17th centuries) were analyzed to confirm the fineness of the coinage as well as to study the provenance of the alloy used for the coins. As most of the coins showed the typical green patina on their surfaces due to corrosion processes that have led to the depletion of copper in the near surface domains of the silver coins in comparison to their core composition, small samples had to be taken, embedded in synthetic resin, and cross sectioned to investigate the true-heart metal composition. µ-synchrotron micro X-ray fluorescence analysis and µ-proton-induced X-ray emission were applied to determine the silver contents as well as the minor and trace elements. The type of the alloy was investigated as well as if coins minted in different locations demonstrated homogeneous traits concerning the predominant impurities (Au and Bi), which could suggest a common ore. Finally, energy-dispersive microanalysis in a scanning electron microscope was applied to study the homogeneity/heterogeneity of the coins and the presence of surface enrichments and to explain differences between the µ-synchrotron micro X-ray fluorescence analysis and µ-proton-induced X-ray emission measurements concerning the main component. In general, the silver content of the analyzed specimen varies between 90 and 95%. These outcomes have not supported the historical interpretations, which predict that during the period studied, a debasement of approximately 44% of the silver content of the coins should have occurred. KW - SRXRF KW - Silber KW - BAMline PY - 2012 U6 - https://doi.org/10.1002/xrs.2415 SN - 0049-8246 VL - 41 IS - 6 SP - 416 EP - 424 PB - Wiley CY - Chichester AN - OPUS4-27723 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Hemmann, F. A1 - Scholz, G. A1 - Scheurell, K. A1 - Kemnitz, E. A1 - Jäger, Christian T1 - Time-optimized 15N qNMR determination of Lewis and Brønsted site concentrations and chemical bonding of pyridine at Brønsted sites in amorphous aluminium hydroxide fluoride N2 - Time-optimized 15N quantitative NMR (qNMR) is described for the precise determination of Lewis and Brønsted site concentrations per gram catalyst, enabling a measurement time reduction of more than a factor of 10. The proof-of-principle is demonstrated for amorphous aluminum hydroxide fluorides with their tunable Lewis to Brønsted functionalities and relevance to highly active and selective heterogeneous catalysis using pyridine as a widely accepted probe molecule for Lewis and Brønsted sites. Two different Lewis centers were found, and reliable site concentrations down to the micromole per gram region can be determined. Furthermore, 1H{15N} REDOR NMR for the acid proton at the Brønsted site yields a distance of the 15N atom of bonded pyridine to this acid proton of (0.112 ± 0.002) nm, such that fast motion/diffusion of the Brønsted site-bonded pyridine at the surface can be excluded. KW - Catalysis KW - Lewis/Brønsted acid sites KW - Acid site concentration KW - Pyridine KW - Quantitative NMR KW - 15N KW - REDOR PY - 2012 U6 - https://doi.org/10.1021/jp212045w SN - 1932-7447 SN - 1089-5639 VL - 116 IS - 19 SP - 10580 EP - 10585 PB - Soc. CY - Washington, DC AN - OPUS4-27724 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Debatin, F. A1 - Behrens, K. A1 - Weber, J. A1 - Baburin, I. A. A1 - Thomas, A. A1 - Schmidt, J. A1 - Senkovska, I. A1 - Kaskel, S. A1 - Kelling, A. A1 - Hedin, N. A1 - Bacsik, Z. A1 - Leoni, S. A1 - Seifert, G. A1 - Jäger, Christian A1 - Günter, C. A1 - Schilde, U. A1 - Friedrich, A. A1 - Holdt, H.-J. T1 - An isoreticular family of microporous metal-organic frameworks based on zinc and 2-substituted imidazolate-4-amide-5-imidate: syntheses, structures and properties N2 - We report on a new series of isoreticular frameworks based on zinc and 2-substituted imidazolate-4-amide-5-imidate (IFP-1–4, IFP=imidazolate framework Potsdam) that form one-dimensional, microporous hexagonal channels. Varying R in the 2-substitued linker (R=Me (IFP-1), Cl (IFP-2), Br (IFP-3), Et (IFP-4)) allowed the channel diameter (4.0–1.7 Å), the polarisability and functionality of the channel walls to be tuned. Frameworks IFP-2, IFP-3 and IFP-4 are isostructural to previously reported IFP-1. The structures of IFP-2 and IFP-3 were solved by X-ray crystallographic analyses. The structure of IFP-4 was determined by a combination of PXRD and structure modelling and was confirmed by IR spectroscopy and 1H MAS and 13C CP-MAS NMR spectroscopy. All IFPs showed high thermal stability (345–400°C); IFP-1 and IFP-4 were stable in boiling water for 7 d. A detailed porosity analysis was performed on the basis of adsorption measurements by using various gases. The potential of the materials to undergo specific interactions with CO2 was investigated by measuring the isosteric heats of adsorption. The capacity to adsorb CH4 (at 298 K), CO2 (at 298 K) and H2 (at 77 K) at high pressure were also investigated. In situ IR spectroscopy showed that CO2 is physisorbed on IFP-1–4 under dry conditions and that both CO2 and H2O are physisorbed on IFP-1 under moist conditions. KW - Adsorption KW - Metal-organic frameworks KW - Microporous materials KW - N,O ligands KW - Zinc PY - 2012 U6 - https://doi.org/10.1002/chem.201200889 SN - 0947-6539 SN - 1521-3765 VL - 18 IS - 37 SP - 11630 EP - 11640 PB - Wiley-VCH Verl. CY - Weinheim AN - OPUS4-27725 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Seto, J. A1 - Ma, Y. A1 - Davis, S.A. A1 - Meldrum, F. A1 - Gourrier, A. A1 - Kim, Y.-Y. A1 - Schilde, U. A1 - Sztucki, M. A1 - Burghammer, M. A1 - Maltsev, Sergey A1 - Jäger, Christian A1 - Cölfen, H. T1 - Structure-property relationships of a biological mesocrystal in the adult sea urchin spine N2 - Structuring over many length scales is a design strategy widely used in Nature to create materials with unique functional properties. We here present a comprehensive analysis of an adult sea urchin spine, and in revealing a complex, hierarchical structure, show how Nature fabricates a material which diffracts as a single crystal of calcite and yet fractures as a glassy material. Each spine comprises a highly oriented array of Mg-calcite nanocrystals in which amorphous regions and macromolecules are embedded. It is postulated that this mesocrystalline structure forms via the crystallization of a dense array of amorphous calcium carbonate (ACC) precursor particles. A residual surface layer of ACC and/or macromolecules remains around the nanoparticle units which creates the mesocrystal structure and contributes to the conchoidal fracture behavior. Nature’s demonstration of how crystallization of an amorphous precursor phase can create a crystalline material with remarkable properties therefore provides inspiration for a novel approach to the design and synthesis of synthetic composite materials. KW - Calcium carbonate biomineralization KW - Echinoderm skeleton KW - Hierarchical structuring KW - Mesocrystal KW - Skeletal elements PY - 2012 U6 - https://doi.org/10.1073/pnas.1109243109 SN - 0027-8424 SN - 1091-6490 VL - 109 IS - 10 SP - 3699 EP - 3704 PB - National Academy of Sciences CY - Washington, DC AN - OPUS4-27726 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Gabler, M. A1 - Tkachenko, Viktoriya A1 - Küppers, S. A1 - Kuka, G.G. A1 - Habel, Wolfgang A1 - Milwich, M. A1 - Knippers, J. ED - Peters, K.J. ED - Ecke, W. ED - Matikas, T.E. T1 - Automatically produced FRP beams with embedded FOS in complex geometry: process, material compatibility, micromechanical analysis, and performance tests N2 - The main goal of the presented work was to evolve a multifunctional beam composed out of fiber reinforced plastics (FRP) and an embedded optical fiber with various fiber Bragg grating sensors (FBG). These beams are developed for the use as structural member for bridges or industrial applications. It is now possible to realize large scale cross sections, the embedding is part of a fully automated process and jumpers can be omitted in order to not negatively influence the laminate. The development includes the smart placement and layout of the optical fibers in the cross section, reliable strain transfer, and finally the coupling of the embedded fibers after production. Micromechanical tests and analysis were carried out to evaluate the performance of the sensor. The work was funded by the German ministry of economics and technology (funding scheme ZIM). Next to the authors of this contribution, Melanie Book with Röchling Engineering Plastics KG (Haren/Germany) and Katharina Frey with SAERTEX GmbH & Co. KG (Saerbeck/Germany) were part of the research group. T2 - Smart sensor phenomena, technology, networks, and systems integration 2012 (SPIE-Proceedings) CY - San Diego, USA DA - 2012-04-26 KW - Engineering KW - Fiber Bragg gratings (FBG) KW - Fiber reinforced polymers (FRP) KW - Optical fibers KW - Embedded sensors KW - Sensor-matrix interaction PY - 2012 SN - 978-0819490032 U6 - https://doi.org/10.1117/12.915489 N1 - Serientitel: Proceedings of SPIE – Series title: Proceedings of SPIE VL - 8346 SP - 83460B-1 - 83460B-14 AN - OPUS4-27727 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Merkel, Stefan A1 - Köppen, Robert A1 - Koch, Matthias A1 - Emmerling, Franziska A1 - Nehls, Irene T1 - Ergotaminine N2 - The title compound {systematic name: (6aR,9S)-N-[(2R,5S,10aS,10bS)-5-benzyl-10b-hydroxy-2-methyl-3,6-dioxooctahydro-8H-oxazolo[3,2-a]pyrrolo[2,1-c]pyrazin-2-yl]-7-methyl-4,6,6a,7,8,9-hexahydroindolo[4,3-fg]quinoline-9-carboxamide}, C33H35N5O5, was formed by an epimerization reaction of ergotamine. The non-aromatic ring (ring C of the ergoline skeleton) directly fused to the aromatic rings is nearly planar [maximum deviation = 0.317 (4) Å] and shows an envelope conformation, whereas ring D, involved in an intramolecular N–H···N hydrogen bond exhibits a slightly distorted chair conformation. The structure displays chains running approximately parallel to the diagonal of bc plane that are formed through N–H···O hydrogen bonds. PY - 2012 U6 - https://doi.org/10.1107/S1600536812003674 SN - 1600-5368 VL - 68 IS - 3 SP - o610-o611, sup1-sup11 PB - Munksgaard CY - Copenhagen AN - OPUS4-25452 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Albrecht, S. A1 - Schäfer, S. A1 - Lange, I. A1 - Yilmaz, S. A1 - Dumsch, I. A1 - Allard, S. A1 - Scherf, U. A1 - Hertwig, Andreas A1 - Neher, D. T1 - Light management in PCPDTBT:PC70BM solar cells: A comparison of standard and inverted device structures N2 - We compare standard and inverted bulk heterojunction solar cells composed of PCPDTBT:PC70BM blends. Inverted devices comprising 100 nm thick active layers exhibited short circuit currents of 15 mA/cm², 10% larger than in corresponding standard devices. Modeling of the optical field distribution in the different device stacks proved that this enhancement originates from an increased absorption of incident light in the active layer. Internal quantum efficiencies (IQEs) were obtained from the direct comparison of experimentally derived and modeled currents for different layer thicknesses, yielding IQEs of ~70% for a layer thickness of 100 nm. Simulations predict a significant increase of the light harvesting efficiency upon increasing the layer thickness to 270 nm. However, a continuous deterioration of the photovoltaic properties with layer thickness was measured for both device architectures, attributed to incomplete charge extraction. On the other hand, our optical modeling suggests that inverted devices based on PCPDTBT should be able to deliver high power conversion efficiencies (PCEs) of more than 7% provided that recombination losses can be reduced. KW - Organic solar cells KW - Inverted solar cells KW - PCPDTBT KW - Low band-gap KW - Optical modeling PY - 2012 U6 - https://doi.org/10.1016/j.orgel.2011.12.019 SN - 1566-1199 VL - 13 IS - 4 SP - 615 EP - 622 CY - Amsterdam [u.a.] AN - OPUS4-25453 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Meyer-Plath, Asmus A1 - Mach, Reinhard A1 - Petrov, Sergej A1 - Oleszak, Franz A1 - Orts Gil, Guillermo T1 - Plasmaverfahren zur Funktionalisierung und Reinigung von CNT T2 - 4. Jahrestagung inno.CNT CY - Bayreuth, Germany DA - 2012-01-30 PY - 2012 AN - OPUS4-25455 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Zerbst, Uwe A1 - Madia, Mauro A1 - Hellmann, C. T1 - An analytical fracture mechanics model for estimation of S-N curves of metallic alloys containing large second phase particles N2 - An analytical fracture mechanics model for predicting the finite life fatigue strength of components is presented which combines a number of well established and newly developed approaches such as Murakami's and McEvily's approach for describing the transient behaviour of crack closure of short cracks, the analytical (long) crack closure function of Newman which became part of the widely used NASGRO approach, the R6 procedure, a method for improving the ligament yielding correction f(Lr ) of R6 proposed by the authors of the present paper and other elements. Basic assumption is the preexistence of initial flaws such that the crack initiation or nucleation stage is small and can be neglected. The application of the model is demonstrated for small tension plates of aluminium Al 5380 H321 with artificial initial defects generated by FIB technology, the size of which was fixed on the basis of fractographic investigations on broken, smooth specimens. KW - S-N curve KW - Fatigue life prediction KW - R6 KW - Short fatigue-cracks KW - Crack closure PY - 2012 U6 - https://doi.org/10.1016/j.engfracmech.2011.12.001 SN - 0013-7944 SN - 1873-7315 VL - 82 SP - 115 EP - 134 PB - Elsevier Science CY - Kidlington AN - OPUS4-25456 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Sarfraz, Adnan A1 - Simo, A. A1 - Fenger, R. A1 - Christen, W. A1 - Rademann, K. A1 - Panne, Ulrich A1 - Emmerling, Franziska T1 - Morphological diversity of caffeine on surfaces: needles and hexagons N2 - A systematic crystal morphology study on the pharmaceutical model compound caffeine has been conducted on different surfaces: silicon, silver, soda lime glass, and silver subsurface ion-exchanged soda-lime silicate (SIMO) glasses. The morphology of the solid caffeine deposits has been investigated using environmental scanning electron microscopy (ESEM), atomic force microscopy (AFM), and X-ray diffraction (XRD). Needle-shaped caffeine crystals have been observed by drop-casting and also by applying the rapid expansion of supercritical solutions (RESS) technique using supercritical carbon dioxide. The aspect ratio of the crystalline needles typically vary between 10 and 100, but have been observed as large as 500. The XRD data of the RESS products indicate unambiguously the presence of the thermodynamically most stable polymorph of caffeine known as the β-form. Under defined conditions we observe a unique, surface-mediated morphology for caffeine crystals with nearly perfect hexagonal shape. The relative fraction of the hexagons was seen to strongly increase especially when SIMO glasses were used. These hexagons have a distinct upper size limit depending on the solvent and substrate being used. The size distribution analysis of the hexagons yielded an average perimeter of typically 10 µm. The mechanism of the formation process of this new hexagonal motif is explained in terms of the spinodal dewetting of the thin film of caffeine solution on the surface. KW - Caffeine KW - Silicon KW - Silver KW - Ion exchanged soda lime silicate glass KW - ESEM KW - AFM KW - X-ray diffraction KW - RESS KW - Carbon dioxide KW - Supercritical fluids PY - 2012 U6 - https://doi.org/10.1021/cg101358q SN - 1528-7483 VL - 12 IS - 2 SP - 583 EP - 588 PB - American Chemical Society CY - Washington, DC, USA AN - OPUS4-25457 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Wachtendorf, Volker A1 - Barthel, Anne-Kathrin A1 - Meyer-Plath, Asmus A1 - Schwiegelshohn, A. A1 - Rauth, W.. A1 - Voetz, Matthias A1 - Rhiem, St. A1 - Schaeffer, A. T1 - Untersuchungen zur witterungsbedingten Partikelfreisetzung aus CNT-Compositen T2 - Inno.CNT Jahreskongress 2012, Innovationsallianz Carbon Nanotubes CY - Bayreuth, Germany DA - 2012-01-30 PY - 2012 AN - OPUS4-25458 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Kühl, Christiane T1 - Ausschuss für Rohrfernleitungen - Ergebnisse und Empfehlungen zu nationalen und internationalen Fach- und Regelungsfragen T2 - 26. Oldenburger Rohrleitungsforum CY - Oldenburg, Germany DA - 2012-02-09 PY - 2012 AN - OPUS4-25459 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Worzewski, Tamara A1 - Jegen, M. A1 - Swidinsky, A. T1 - Approximations for the 2-D coast effect on marine magnetotelluric data KW - Magnetotelluric KW - Magnetic anomalies KW - Modelling and interpretation KW - Marine electromagnetics KW - Magnetic field KW - Electromagnetic theory KW - Elektromagnetische Theorie KW - Magnetfeld KW - Modellierung KW - Inversion PY - 2012 U6 - https://doi.org/10.1111/j.1365-246X.2012.5385.x SN - 0956-540X SN - 1365-246X VL - 189 SP - 357 EP - 368 PB - Blackwell CY - Oxford AN - OPUS4-25503 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Würth, Christian A1 - Pauli, Jutta A1 - Lochmann, Cornelia A1 - Spieles, Monika A1 - Resch-Genger, Ute T1 - Integrating sphere setup for the traceable measurement of absolute photoluminescence quantum yields in the near infrared N2 - There is an increasing interest in chromophores absorbing and emitting in the near-infrared (NIR) spectral region, e.g., for applications as fluorescent reporters for optical imaging techniques and hence, in reliable methods for the characterization of their signal-relevant properties like the fluorescence quantum yield (Φf) and brightness. The lack of well established Φf standards for the NIR region in conjunction with the need for accurate Φf measurements in transparent and scattering media encouraged us to built up an integrating sphere setup for spectrally resolved measurements of absolute fluorescence traceable to radiometric scales. Here, we present the design of this setup and its characterization and validation including an uncertainty budget for the determination of absolute Φf in the visible and NIR. To provide the basis for better measurements of Φf in the spectral window from ca. 600 to 1000 nm used, e.g., for optical imaging, the absolute Φf of a set of NIR chromophores covering this spectral region are measured and compared to relative values obtained using rhodamine 101 as Φf standard. Additionally, the absolute Φf values of some red dyes that are among the most commonly used labels in the life sciences are presented as well as the absolute quantum yield of an optical probe for tumor imaging. KW - Fluorescence KW - Photoluminescence KW - Quantum yield KW - Dye KW - Uncertainty KW - Absolute quantum yield KW - Method comparison KW - Integrating sphere KW - NIR KW - Standards KW - Quantum yield standards PY - 2012 U6 - https://doi.org/10.1021/ac2021954 SN - 0003-2700 SN - 1520-6882 VL - 84 IS - 3 SP - 1345 EP - 1352 PB - American Chemical Society CY - Washington, DC AN - OPUS4-25504 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - GEN A1 - Hertwig, Andreas A1 - De Castro, F.A. T1 - Newsletter - Metrology for the manufacturing of thin films KW - Metrology KW - Thin films KW - Optoelectronics KW - Photovoltaics KW - Coatings technology KW - Traceability PY - 2012 UR - http://projects.npl.co.uk/optoelectronic_films/documents/EMRP%20ThinFilms_Newsletter%20Feb%202012.pdf IS - February SP - 1 EP - 4 AN - OPUS4-25505 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Mozir, A. A1 - Gonzalez, L. A1 - Cigic, I.K. A1 - Wess, T. J. A1 - Rabin, Ira A1 - Hahn, Oliver A1 - Strlic, M. T1 - A study of degradation of historic parchment using small-angle X-ray scattering, synchrotron-IR and multivariate data analysis N2 - Parchment has been in use for thousands of years and has been used as the writing or drawing support for many important historic works. A variety of analytical techniques is currently used for routine assessment of the degree of denaturation of historic parchment; however, because parchment has a heterogeneous nature, analytical methods with high spatial resolution are desirable. In this work, the use of small-angle X-ray scattering (SAXS) and synchrotron-IR (SR-IR) was examined in conjunction with multivariate data analysis to study degradation of an extended set of historic parchment samples, and particularly to investigate the effect of lipids and the presence of iron gall ink on the degradation processes. In the data analysis, shrinkage temperature, lipid content, sample age, presence of ink and accelerated degradation were included. The analysis of loading factors in partial least-squares regression and principal component analyses based on SAXS, SR-IR and other analytical and descriptive data reveals the effect of lipid removal on diffraction patterns, and lipids are found to cause the degradation process in parchment to accelerate. The effect of iron gall ink is also evident, although the mechanism of ageing is different to that of natural ageing in the absence of ink. In addition, a historic parchment score from ca. 1750 is examined, demonstrating the significant effect of iron gall ink, and lipids and inorganic soiling on its increased degradation. KW - Small-angle X-ray scattering KW - Multivariate data analysis KW - Degradation KW - Collagen KW - Lipids KW - Iron gall ink PY - 2012 U6 - https://doi.org/10.1007/s00216-011-5392-6 SN - 1618-2642 SN - 1618-2650 VL - 402 IS - 4 SP - 1559 EP - 1566 PB - Springer CY - Berlin AN - OPUS4-25506 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Masic, A. A1 - Chierotti, M.R. A1 - Gobetto, R. A1 - Martra, G. A1 - Rabin, Ira A1 - Coluccia, S. T1 - Solid state and unilateral NMR study of deterioration of a Dead Sea scroll fragment N2 - Unilateral and solid-state nuclear magnetic resonance (NMR) analyses were performed on a parchment fragment of the Dead Sea Scroll (DSS). The analyzed sample belongs to the collection of non-inscribed and nontreated fragments of known archaeological provenance from the John Rylands University Library in Manchester. Therefore, it can be considered as original DSS material free from any contamination related to the post-discovery period. Considering the paramount significance of the DSS, noninvasive approaches and portable in situ nondestructive methods are of fundamental importance for the determination of composition, structure, and chemical–physical properties of the materials under study. NMR studies reveal low amounts of water content associated with very short proton relaxation times, T1, indicating a high level of deterioration of collagen molecules within scroll fragments. In addition, 13C cross-polarization magicangle- spinning (CPMAS) NMR spectroscopy shows characteristic peaks of lipids whose presence we attribute to the production technology that did not involve liming. Extraction with chloroform led to the reduction of both lipid and protein signals in the 13C CPMAS spectrum indicating probable involvement of lipids in parchment degradation processes. NMR absorption and relaxation measurements provide nondestructive, discriminative, and sensitive tools for studying the deterioration effects on the organization and properties of water and collagen within ancient manuscripts. KW - Dead Sea scrolls KW - Collagen deterioration KW - Solid-state NMR KW - Unilateral NMR PY - 2012 U6 - https://doi.org/10.1007/s00216-011-5265-z SN - 1618-2642 SN - 1618-2650 VL - 402 IS - 4 SP - 1551 EP - 1557 PB - Springer CY - Berlin AN - OPUS4-25507 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Pinzari, F. A1 - Colaizzi, P. A1 - Maggi, O. A1 - Persiani, A.M. A1 - Schütz, R. A1 - Rabin, Ira T1 - Fungal bioleaching of mineral components in a twentieth-century illuminated parchment N2 - In this work, we applied scanning electron microscopy (SEM), microanalysis and Raman spectroscopy to study the fungi inhabiting a richly illuminated parchment document and the damage induced by their activity. To that aim, we collected samples of fungal mycelium from the deteriorated areas on a removable adhesive tape specifically intended for lifting fungi without damaging the support. SEM analysis of the adhesive tape samples showed the cooccurrence of several species of fungi. One strain closely resembling Acremonium species was observed only in the tape micrographs but no agar cultures were obtained. Its fungal structures showed the production of abundant oxalates with an outstanding leaching of the calciumbased materials of parchment (typically manufactured with gypsum and lime). Needle-like crystals of calcium oxalate produced by the fungus forming a uniform and quite regular grid around conidial slimy heads were documented. As a result, the areas affected by moulds were weakened, stained and characterised by a powdery patina rich in calcium. Confocal µ-Raman confirmed the presence of oxalates while EDS showed the presence of calcium in crystals. We conclude that the defacement of the parchment was due to both collagenolytic activity, and to the biotransformation of calcium-based minerals by fungi. KW - Parchment KW - Biodeterioration KW - SEM-EDS KW - Raman KW - Oxalates KW - Fungi PY - 2012 U6 - https://doi.org/10.1007/s00216-011-5263-1 SN - 1618-2642 SN - 1618-2650 VL - 402 IS - 4 SP - 1541 EP - 1550 PB - Springer CY - Berlin AN - OPUS4-25508 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Steinborn, Gabriele A1 - Rabe, Torsten A1 - Becker, D. A1 - Sukmanowski, J. T1 - Herstellung eines Halbleiters auf Sol-Gel-Basis für Solarzellenanwendung T2 - Jahrestagung der Deutschen Keramischen Gesellschaft 2012 CY - Nuremberg, Germany DA - 2012-03-05 PY - 2012 AN - OPUS4-25509 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Dietz, G. A1 - Ketelsen, T. A1 - Hoss, M. A1 - Simon, O. A1 - Wintermann, C. A1 - Wolff, Timo A1 - Rabin, Ira A1 - Hahn, Oliver T1 - The Egmont master phenomenon: X-ray fluorescence spectrometric and paper studies for art history research N2 - The aim of the research project 'Typology of Dutch Drawing' was to establish an interdisciplinary approach for investigating heterogeneous drawing collections. To define a type common to a group of drawings, we determine elements that are common to them based on style and the use of identical materials. To that end, we investigated about 750 Dutch drawings from the sixteenth century at the Dresden Kupferstich-Kabinett using art historical and scientific methods. In this work, we present a detailed analysis of 30 drawings ascribed to the Egmont Master. KW - Archeometry KW - Fine arts KW - Nondestructive testing KW - Paper analysis KW - X-ray fluorescence spectrometry (XRF) KW - Reference materials PY - 2012 U6 - https://doi.org/10.1007/s00216-011-5309-4 SN - 1618-2642 SN - 1618-2650 VL - 402 IS - 4 SP - 1505 EP - 1515 PB - Springer CY - Berlin AN - OPUS4-25510 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Wolff, Timo A1 - Rabin, Ira A1 - Montouvalou, I. A1 - Kanngießer, B. A1 - Malzer, W. A1 - Kindzorra, Emanuel A1 - Hahn, Oliver T1 - Provenance studies on Dead Sea scrolls parchment by means of quantitative micro-XRF N2 - In this study, we address the question of the provenance and origin of the Dead Sea Scrolls manuscripts. A characteristic low ratio of chlorine to bromine, corresponding to that of the Dead Sea water, may serve as an indicator for local production. For this aim we developed a non-destructive procedure to determine the Cl/Br ratio in the parchment of these manuscripts. Micro-X-ray fluorescence (µ-XRF) measurements of a large number of parchment and leather fragments from the Dead Sea Scrolls were analyzed with a routine we developed based on fundamental parameter quantification. This routine takes into account the absorption of the collagen matrix and the influence of the different sample thicknesses. To calculate the representative Cl/Br ratio for each fragment, we investigated the lateral homogeneity and determined the total mass deposition using the intensity of the inelastically scattered, characteristic tube radiation. The distribution of the Cl/Br ratios thus obtained from the µ-XRF measurements make it possible to distinguish fragments whose origin lies within the Dead Sea region from those produced in other locations. KW - Fundamental parameter quantification KW - Samples of intermediated thickness KW - Chlorine to bromine ratio KW - Scatter peak evaluation KW - Dark matrix KW - Inorganic traces KW - Archaeometry KW - Fine arts KW - Inorganic compounds KW - Trace elements KW - X-ray spectroscopy PY - 2012 U6 - https://doi.org/10.1007/s00216-011-5270-2 SN - 1618-2642 SN - 1618-2650 VL - 402 IS - 4 SP - 1493 EP - 1503 PB - Springer CY - Berlin AN - OPUS4-25511 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Gemeinert, Marion A1 - Kuchenbecker, Petra A1 - Rabe, Torsten T1 - Entwicklung eines zertifizierten Referenzmaterials für die Lasergranulometrie T2 - Jahrestagung der Deutschen Keramischen Gesellschaft 2012 CY - Nuremberg, Germany DA - 2012-03-05 PY - 2012 AN - OPUS4-25512 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Müller, Werner A1 - Biedermann, K. A1 - Engelmann, B. A1 - Wöhlecke, Andreas T1 - Das Zulassungsverfahren für Geokunststoffe im Deponiebau N2 - Die neue Deponieverordnung regelt im Anhang 1 auch den Einsatz von Geokunststoffen im Deponiebau. Deren Eignung muss der zuständigen Behörde gegenüber nachgewiesen werden. Auf die entsprechenden Regelungen wurde im ersten Teil dieses Aufsatzes eingegangen. Zumindest in den nächsten Jahren kommt nur ein Nachweis durch Vorlage einer Zulassung der BAM Bundesanstalt für Materialforschung und -prüfung in Betracht. Das Zulassungsverfahren wird in der Deponieverordnung geregelt. Die Zulassungsbehörde soll u.a. nicht nur ein bestimmtes Produkt auf der Grundlage von Zulassungsrichtlinien überprüfen, sondern auch in Zusammenarbeit mit einem Fachbeirat Anforderungen an den fachgerechten Einbau und das Qualitätsmanagement festlegen. Das Zulassungsverfahren und einige wesentliche technische Zulassungsanforderung, die für Kunststoffdichtungsbahnen, Schutzschichten, Geotextilien, Kunststoff-Dränelement, Bewehrungsgitter aus Kunststoff und Dichtungskontrollsysteme inzwischen erarbeitet und in Zulassungsrichtlinien beschrieben wurden, werden erläutert. KW - Deponieverordnung KW - Deponieabdichtungssysteme KW - BAM-Zulassung KW - Geokunststoffe PY - 2012 SN - 0027-2957 SN - 1863-9763 VL - 44 IS - 02 SP - 94 EP - 101 PB - Erich Schmidt CY - Berlin AN - OPUS4-25513 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Mönch, Bettina A1 - Jung, Christian A1 - Becker, Roland A1 - Nehls, Irene T1 - EtG - a biomarker for classifying the alcohol consumption T2 - 6. Internationales Doktorandenseminar CY - Berlin, Germany DA - 2012-02-26 PY - 2012 AN - OPUS4-25515 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Heunisch, Andreas A1 - Staude, Andreas A1 - Rabe, Torsten T1 - 3D-Computertomographie an keramischen Multilayern T2 - Jahrestagung der Deutschen Keramischen Gesellschaft 2012 CY - Nuremberg, Germany DA - 2012-03-05 PY - 2012 AN - OPUS4-25516 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Naghib Zadeh, Hamid A1 - Mieller, Björn A1 - Rabe, Torsten A1 - Töpfer, J. T1 - Anwendung der Master-Sinter-Kurve bei der Co-Sinterung von Werkstoffkombinationen T2 - Jahrestagung der Deutschen Keramischen Gesellschaft 2012 CY - Nuremberg, Germany DA - 2012-03-05 PY - 2012 N1 - Geburtsname von Mieller, Björn: Brandt, B. - Birth name of Mieller, Björn: Brandt, B. AN - OPUS4-25517 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Friedrich, Jörg Florian A1 - Wettmarshausen, Sascha A1 - Meyer-Plath, Asmus A1 - Ziemann, Sylvia A1 - Hidde, Gundula A1 - Zeynalov, Eldar T1 - Plasmabromierung von graphitischen Materialien - Kovalente Anbindung organischer Moleküle N2 - Die hochselektive und ausbeutereiche plasmachemische Bromierung von Polyolefinoberflächen wurde auf graphitische Materialien übertragen. Oberflächen von graphenartigem Highly Oriented Pyrolytic Graphite (HOPG), natürlichem Graphit, mehrwandige Kohlenstoffnanoröhren (MWCNT) sowie Kohlenstoff-Fasern wurden im Bromdampfplasma behandelt. Während die Bromierung von Polyolefinoberflächen als radikalische Wasserstoffabstraktion mit nachfolgender Addition (Rekombination) oder durch nucleophile Substitution an sp³-hybridisierten C-Atomen abläuft, können graphitische Strukturen sowohl an sp³-hybridisierten Strukturdefekten als auch durch elektrophile Addition an vollständig C-substituierte aromatische Doppelbindungen bromiert werden. Dabei werden die planaren (graphitischen) sp²-C-Atome in die tetraedrische sp³-Hybridisierung umgewandelt und zu elektrisch nichtleitenden Strukturen gefaltet. Die maximalen Bromausbeuten bei Verwendung von Brom als Plasmamedium lagen je nach Substrat zwischen 10–50% Br/C, mit Bromoform deutlich darüber, was durch Kombinationen von Bromoform mit Brom oder Allylbromid mit Bromoform durch Schichtbildung auf über 70% Br/C gesteigert werden konnte. An die C-Br-Gruppen wurden nasschemisch verschiedene Amine nucleophil gepfropft. Die Pfropfausbeuten von 1–10 Moleküle je 100 C lagen deutlich niedriger als die erreichten Pfropfgrade von etwa 1–22 Moleküle je 100 C-Atome an Polyolefinoberflächen. Da nach der chemischen Pfropfung nahezu alle nichtgepfropften Br-Gruppen verschwunden waren, muss auf eine bevorzugte Rekonstruktion der planaren sp²-Graphitschicht geschlossen werden. KW - Polymerbromierung PY - 2012 U6 - https://doi.org/10.1002/vipr.201200481 SN - 0947-076X SN - 1522-2454 VL - 24 IS - 1 SP - 24 EP - 29 PB - Wiley-VCH Verl. CY - Weinheim AN - OPUS4-25518 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Kühl, Christiane T1 - Ausschuss für Rohrfernleitungen - Ergebnisse und Empfehlungen zu nationalen und internationalen Fach- und Regelungsfragen T2 - 26. Oldenburger Rohrleitungsforum - Rohrleitungen - in neuen Energieversorgungskonzepten CY - Oldenburg, Deutschland DA - 2012-02-09 KW - Rohrfernleitungen KW - Pipelines KW - Ausschuss für Rohrfernleitungen PY - 2012 SN - 978-3-8027-2857-0 N1 - Serientitel: Schriftenreihe aus dem Institut für Rohrleitungsbau Oldenburg – Series title: Schriftenreihe aus dem Institut für Rohrleitungsbau Oldenburg VL - 37 IS - Kap. II.D.4 SP - 551 EP - 561 PB - Vulkan CY - Essen AN - OPUS4-25519 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Salge, T. A1 - Tunckan, O. A1 - Scheller, S. A1 - Hodoroaba, Vasile-Dan A1 - Turan, S. T1 - Advanced light element and low energy X-ray analysis of ceramics and ceramic-metal joints using SEM/EDX with SDD T2 - The 22nd Australian Conference on Microscopy and Microanalysis (ACMM 22) CY - Perth, Australia DA - 2012-02-05 PY - 2012 AN - OPUS4-25530 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Bonse, Jörn T1 - Femtosecond laser-induced periodic surface structures T2 - Institutskolloquium des Leibniz-Instituts für Oberflächenmodifizierung CY - Leipzig, Germany DA - 2012-06-07 PY - 2012 AN - OPUS4-25531 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Mente, Tobias A1 - Böllinghaus, Thomas T1 - Mesoscale Crack Model for Duplex Stainless Steel Microstructures T2 - IIW Intermediate Meeting 2012 CY - Cambridge, England DA - 2012-02-20 PY - 2012 AN - OPUS4-25537 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Mente, Tobias A1 - Steppan, Enrico A1 - Böllinghaus, Thomas T1 - Numerical Simulation of Hydrogen Assisted Cold Cracking in welded Joints of High Strength Structural Steels T2 - IIW Intermediate Meeting 2012 CY - Cambridge, England DA - 2012-02-20 PY - 2012 AN - OPUS4-25538 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Kromm, Arne A1 - Kannengießer, Thomas T1 - Influence of Heat Control on Welding Residual Stresses in Multi-layer Component Joints T2 - IIW Intermediate Meeting 2012 CY - Cambridge, England DA - 2012-02-20 PY - 2012 AN - OPUS4-25539 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Trappe, Volker T1 - Advanced composite testing to assure high quality and blade performance T2 - Advances in wind turbine rotor blades CY - Bremen, Germany DA - 2012-02-13 PY - 2012 AN - OPUS4-25570 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Wenzel, B. A1 - Li, Y. A1 - Kraus, Werner A1 - Sorger, D. A1 - Sabri, O. A1 - Brust, P. A1 - Steinbach, J. T1 - Pyrrolovesamicols - synthesis, structure and VAChT binding of two 4-fluorobenzoyl regioisomers N2 - This Letter describes the synthesis of two regioisomers of a new class of vesamicol analogs as possible ligands for imaging the vesicular acetylcholine transporter in future PET studies. The two pyrrolovesamicols (±)-6a and (±)-6b were synthesized by nucleophilic ring opening reaction of a tetrahydroindole epoxide precursor with 4-phenylpiperidine. The reaction mechanism of the synthesis was studied by HPLC and the molecular structures were determined by X-ray structure analysis. Unexpected low binding affinities to VAChT (Κi = 312 ± 73 nM for (±)-6a and Κi = 7320 ± 1840 nM for (±)-6b) were determined by competitive binding analysis using a cell line stably transfected with ratVAChT and (–)-[3H]vesamicol. KW - Pyrrolovesamicol KW - Vesamicol KW - VAChT KW - Pyrrole PY - 2012 U6 - https://doi.org/10.1016/j.bmcl.2012.01.127 SN - 0960-894X SN - 1464-3405 VL - 22 IS - 6 SP - 2163 EP - 2166 PB - Pergamon, Elsevier Science CY - New York, NY [u.a.] AN - OPUS4-25574 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Hodenius, M. A1 - Würth, Christian A1 - Jayapaul, J. A1 - Wong, J. E. A1 - Lammers, T. A1 - Gätjens, J. A1 - Arns, S. A1 - Mertens, N. A1 - Slabu, I. A1 - Ivanova, G. A1 - Bornemann, J. A1 - De Cuyper, M. A1 - Resch-Genger, Ute A1 - Kiessling, F. T1 - Fluorescent magnetoliposomes as a platform technology for functional and molecular MR and optical imaging N2 - Here, we present a detailed characterisation of rhodamine B-containing magnetoliposomes (FLU-ML), emphasising the dependence of their fluorescence properties on the presence of iron oxide cores, and the molar fraction of the fluorophore. The magnetoliposome types used exist as colloidally stable, negatively charged clusters with an average hydrodynamic diameter of 95 nm. The molar rhodamine B fractions were 0.67 % and 1.97 %. Rhodamine B normalised fluorescence, quantum yields and fluorescence lifetimes were substantially reduced by inner filter effects as the magnetoliposome concentration is increased, by increasing molar rhodamine B fraction, and by quenching originating from the iron oxide cores. MR relaxometry at 3 T revealed extremely high r2 relaxivities (440 to 554 s-1mM-1) and moderately high r1 values (2.06 to 3.59 s-1mM-1). Upon incubating human prostate carcinoma (PC-3) cells with FLU-ML, a dose-dependent particle internalisation was found by MR relaxometry. In addition, the internalised FLU-ML were clearly visible by fluorescence microscopy. At the FLU-ML concentrations used (up to 3 × 103 M Fe) cell viability was not substantially impaired. These results provide valuable insights on the fluorescence properties of bimodal magnetoliposomes and open promising perspectives for the use of these materials as a platform technology for advanced functional and molecular MR and optical imaging applications. KW - Fluorescent magnetoliposomes KW - Steady state and time resolved fluorometry KW - Quantum yield KW - Fluorescence lifetimes KW - MR relaxivities KW - PC-3 cells KW - Cell viability PY - 2012 U6 - https://doi.org/10.1002/cmmi.467 SN - 1555-4309 SN - 1555-4317 VL - 7 IS - 1 SP - 59 EP - 67 PB - Wiley CY - Chichester AN - OPUS4-25577 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Akkerman, Floris T1 - Ökodesign und Energieverbrauchskennzeichnung für Heizungssysteme T2 - Jahrestagung Verband der Zentralheizungswirtschaft CY - Berlin, Germany DA - 2012-02-24 PY - 2012 AN - OPUS4-25578 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Akkerman, Floris T1 - ErP-richtlinie für Haushaltsgeräte T2 - Jahrestagung 2012 FA Haushaltstechnik CY - Hanover, Germany DA - 2012-03-01 PY - 2012 AN - OPUS4-25579 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Lange, Axel A1 - Hentschel, Manfred P. A1 - Kupsch, Andreas A1 - Müller, Bernd R. T1 - Numerical correction of X-ray detector backlighting N2 - A novel approach to strongly suppress artifacts in radiography and computed tomography caused by the effect of diffuse background signals ('backlighting') of 2D X-ray detectors is suggested. Depending on the detector geometry the mechanism may be different, either based on the optical scattering by the fluorescent screen materials into optical detection devices or Compton or X-ray fluorescence scattering by the detector components. Consequently, these erroneous intensity portions result in locally different violations of Lambert–Beer's law in single projections (radiographs). When used as input data for computed tomography these violations are directly observed via modulation of the projected mass as a function of the rotation phase and the sample’s aspect ratio (dynamics). The magnitude of the diffuse background signal depends on the detector area covered by the projected sample. They are more pronounced the smaller the shadowed area and the stronger the total attenuation. This implies that the reconstruction suffers from additional anisotropic artifacts caused by elongated sample structures. This issue is studied simply by absorption of flat plates in a conventional laboratory radiography set-up and at a synchrotron radiation facility. In the latter case beam hardening artifacts can be excluded due to the monochromatic radiation. The proposed correction procedure requires simple integral intensity offsets as a constant (non-local) light scattering mechanism is assumed. KW - Detector backlighting KW - X-ray detector scattering KW - Fluorescent screen KW - Diffuse background KW - Computed tomography PY - 2012 U6 - https://doi.org/10.3139/146.110659 SN - 1862-5282 VL - 103 IS - 2 SP - 174 EP - 178 PB - Carl Hanser CY - München AN - OPUS4-25553 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - GEN A1 - Recknagel, Christoph T1 - Teilprojekt 'Strukturanalyse von offenporigen Asphalten' KW - Asphalt KW - Geräuschminderung KW - Strukturaufklärung KW - Hohlraumanalyse PY - 2012 SN - 978-3-86918-183-7 SN - 0943-9323 N1 - Serientitel: Berichte der Bundesanstalt für Straßenwesen – Series title: Berichte der Bundesanstalt für Straßenwesen IS - S 74 SP - 167 EP - 188 PB - Wirtschaftsverl. NW, Verl. für neue Wissenschaft CY - Bergisch Gladbach AN - OPUS4-25554 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Nooke, Alida A1 - Beck, Uwe A1 - Hertwig, Andreas A1 - Krause, Andreas A1 - Lohse, Volkmar A1 - Kormunda, M. A1 - Pavlik, J. A1 - Krüger, H. A1 - Steinbach, J. T1 - SPR gas monitoring with ellipsometric read-out on thon inorganic layers T2 - 7th Workshop ellipsometry CY - Leipzig, Germany DA - 2012-03-05 PY - 2012 AN - OPUS4-25555 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Wöhlecke, Andreas A1 - Müller, Werner ED - Kilchert, M. T1 - Aktuelle Informationen zum Stand der Arbeit und zu den Arbeitsergebnissen des Fachbeirates der BAM zur Zulassung von Geokunststoffen und Dichtungskontrollsystemen T2 - 8. Leipziger Deponiefachtagung - Planung, Bau, Betrieb, Stolllegung, Nachsorge, Nachnutzung und Rückbau von Deponien CY - Leipzig, Deutschland DA - 2012-02-28 PY - 2012 SP - 37 EP - 49 AN - OPUS4-25556 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Ostermann, Markus A1 - Lück, Detlef A1 - Scharf, Holger T1 - Einsatz und Eignung von Handgeräten für die Bodenanalytik T2 - 19. Anwendertreffen Röntgenfluoreszenz und Funkenemissionsspektrometrie CY - Dortmund, Germany DA - 2012-03-06 PY - 2012 AN - OPUS4-25559 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Gollnow, Christian A1 - Kannengießer, Thomas T1 - Hot Cracking Analysis using in-situ Digital Image Correlation Technique T2 - IIW Intermediate Meeting 2012 CY - Cambridge, England DA - 2012-02-20 PY - 2012 AN - OPUS4-25540 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Schempp, Philipp A1 - Cross, C.E. A1 - Pittner, Andreas A1 - Rethmeier, Michael T1 - Influence of grain size on mechanical properties of aluminium GTA weld metal T2 - IIW Intermediate Meeting 2012 CY - Cambridge, England DA - 2012-02-20 PY - 2012 AN - OPUS4-25541 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Schröder, Volkmar T1 - Gasgemische - Neuere Entwicklungen in der Regelsetzung T2 - BAM-DIN-IGV-Jahrestreffen 2012 CY - Berlin, Germany DA - 2012-02-09 PY - 2012 AN - OPUS4-25542 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Schmidt, Wolfram A1 - Priebe, Nsesheye Susan A1 - Kühne, Hans-Carsten T1 - Technologische und wirtschaftliche Lösungsansätze für rheologisch optimierte Betone für subsaharische afrikanische Länder T2 - 21. Tagung "Rheologie von Baustoffen" CY - Regensburg, Germany DA - 2012-02-29 PY - 2012 N1 - Geburtsname von Priebe, Nsesheye Susan: Msinjili, N. S. - Birth name of Priebe, Nsesheye Susan: Msinjili, N. S. AN - OPUS4-25543 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Rabe, Torsten A1 - Naghib Zadeh, Hamid A1 - Glitzky, Carsten A1 - Töpfer, J. T1 - Integration of Ni-Cu-Zn ferrite in low temperature Co-fired ceramics (LTCC) modules N2 - Integration of magnetic functional components in LTCC circuit boards calls for co-firing of dielectric and ferrite tapes. Ni-Cu-Zn ferrites with permeability of µ = 900 were fully densified at the standard LTCC sintering temperature of 900°C. Co-firing of this ferrite with dielectric tapes requires the adaptation of the shrinkage behavior of the materials as well as the thermal contraction during the cooling period – especially in the temperature range below the transformation point of the glass phase of the dielectric tape. To match these preconditions, a new dielectric LTCC material with steep sintering curve and high thermal expansion coefficient was designed. Sintered multilayer laminates composed of Ni-Cu-Zn ferrite and tailored dielectric tapes are free of cracks and possess no open porosity. No significant interdiffusion between the ferrite and dielectric tapes was found using microprobe analysis. Pure ferrite laminates show homogeneous microstructure with large grains up to 50 µm in diameter. However, growth of ferrite grains does not take place near the interface between ferrite and release or dielectric tapes. There is a strong correlation between permeability and volume fraction of large ferrite grains. Compared to pure ferrite laminates the permeability of co-sintered Ni-Cu-Zn ferrite layers is drastically reduced to 400, that is a decrease of more than 50%. PY - 2012 U6 - https://doi.org/10.1111/j.1744-7402.2011.00712.x SN - 1546-542X SN - 1744-7402 VL - 9 IS - 1 SP - 18 EP - 28 PB - American Ceramic Soc. CY - Westerville, Ohio AN - OPUS4-25544 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Gärtner, Stefanie A1 - Carvalho, José Joao A1 - Garbe, L.-A. A1 - Schneider, Rudolf T1 - Development of an immunoassay for the anthropogenic marker coprostanol T2 - 6. Interdiziplinäres Doktorandenseminarder GDCh CY - Berlin, Germany DA - 2012-02-26 PY - 2012 AN - OPUS4-25545 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Köppen, Robert A1 - Riedel, Juliane A1 - Emmerling, Franziska A1 - Koch, Matthias T1 - (3S,11Z)-14,16-dihydroxy-3-methyl-3,4,5,6,9,10-hexahydro-1H-2-benz-oxacyclotetradecine-1,7(8H)-dione (cis-zearalenone): a redetermination N2 - The title compound, also known as cis-zearalenone (cis-ZEN), C18H22O5, has already been reported elsewhere [Griffin et al. (1981). ACA Ser. 29, 35], but no atomic coordinates are publicly available. The molecule is of interest with respect to its toxicity. In the crystal, intramolecular O—H···O hydrogen bonds stabilize the molecular conformation, while intermolecular O—H···O hydrogen bonds link the molecules to form infinite chains along the [110] and [1¯10] directions. The absolute configuration has been assigned by reference to an unchanging chiral centre in the synthetic procedure. PY - 2012 U6 - https://doi.org/10.1107/S1600536812002735 SN - 1600-5368 VL - 68 IS - 3 SP - o832, sup1 EP - sup8 PB - Munksgaard CY - Copenhagen AN - OPUS4-25546 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Ramanujam, Maalolan A1 - Wachtendorf, Volker A1 - Purohit, Purv A1 - Mix, Renate A1 - Schönhals, Andreas A1 - Friedrich, Jörg Florian T1 - A detailed dielectric relaxation spectroscopy study of artificial UV weathered low density polyethylene N2 - Artificial weathering of LDPE under dry conditions (<10% of relative humidity) by UV radiation was monitored by dielectric spectroscopy. For an apolar polymer like LDPE, dielectric study yields information about the change in structure and dynamics of the system. The fluctuations of the polar groups which are generated as a result of photooxidation such as carbonyl groups can be monitored as characteristic relaxation processes like the αc or β mode. The dielectric loss characterized by typical dielectric parameters like the activation energy and dielectric strength are strongly dependent upon changes induced by photooxidation in the amorphous and crystalline domains. This paper discusses in detail how the foil reached its mechanical disintegration. It was found that initial stages of weathering induce chain scission and/or crosslinking in the amorphous domains of the polymer and the motional processes in the crystalline regions are not affected. After this induction period, an increase in the degree of crystallization was observed by employing differential calorimetry. The increasing crystallinity is considered as one of the reasons for embrittlement which finally leads to the complete loss of the structural integrity. KW - Artificial weathering KW - UV radiation KW - Dielectric relaxation KW - LDPE PY - 2012 U6 - https://doi.org/10.1016/j.tca.2011.12.003 SN - 0040-6031 SN - 1872-762X VL - 530 SP - 73 EP - 78 PB - Elsevier CY - Amsterdam AN - OPUS4-25547 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Zoëga, Andreas A1 - Stoppel, Markus A1 - Feldmann, Rüdiger T1 - Automatisierte Multisensorsysteme zur Zustandsbewertung T2 - Fachtagung Bauwerksdiagnose 2012 - Praktische Anwendungen zerstörungsfreier Prüfungen und Zukunftsaufgaben CY - Berlin, Deutschland DA - 2012-02-23 KW - Bauwesen KW - Zerstörungsfreie Prüfung KW - Automatisierung KW - Multisensorsysteme / BetoScan / ZFP-Scanner PY - 2012 SN - 978-3-940283-40-5 IS - DGZfP-BB 134 (Vortrag 07) SP - 1 EP - 9 CY - Berlin AN - OPUS4-25548 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - GEN A1 - Kromm, Arne ED - Lexow, J. ED - Kishi, T. ED - Kitagawa, M. ED - Böllinghaus, T. T1 - Controlling welding residual stresses by means of alloy design KW - Residual stress KW - Martensite KW - Phase transformation KW - Welding PY - 2012 SN - 978-3-642-23347-0 SN - 978-3-642-23348-7 U6 - https://doi.org/10.1007/978-3-642-23348-7 SP - 23 EP - 33 PB - Springer CY - Berlin Heidelberg AN - OPUS4-25520 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Bonse, Jörn A1 - Höhm, S. A1 - Rosenfeld, A. A1 - Koter, Robert A1 - Krüger, Jörg T1 - Femtosecond laser-induced periodic surface structures generated in different environments T2 - European Materials Research Society (EMRS) Spring Meeting 2012, Symposium V "Laser materials processing for micro and nano applications" CY - Strasbourg, France DA - 2012-05-12 PY - 2012 AN - OPUS4-25521 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Bonse, Jörn A1 - Hertwig, Andreas A1 - Koter, Robert A1 - Weise, Matthias A1 - Beck, Uwe A1 - Reinstädt, Philipp A1 - Griepentrog, Michael A1 - Krüger, Jörg A1 - Picquart, M. A1 - Haro-Poniatowski, E. T1 - Femtosecond laser-induced modification and ablation of hydrogenated amorphous carbon films T2 - European Materials Research Society (EMRS) Spring Meeting 2012, Symposium V "Laser materials processing for micro and nano applications" CY - Strasbourg, France DA - 2012-05-12 PY - 2012 AN - OPUS4-25522 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Salge, T. A1 - Tunckan, O. A1 - Terborg, R. A1 - Hodoroaba, Vasile-Dan A1 - Turan, S. T1 - Advanced light element and low energy X-ray analysis of ceramics and ceramic-metal joints using SEM/EDX with Silicon Drift Detector (SDD) T2 - 76. Jahrestagung der DPG und DPG-Frühjahrstagung CY - Berlin, Germany DA - 2012-03-25 PY - 2012 AN - OPUS4-25523 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Beck, Uwe T1 - Prüfung der Kleb- und Haftfestigkeit mittels Zentrifugenversuch T2 - 11. Workshop des ak-adp (Anwenderkreis Atmosphärendruckplasma) CY - Erfurt, Germany DA - 2012-03-15 PY - 2012 AN - OPUS4-25524 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Rackwitz, Vanessa A1 - Ostermann, Markus A1 - Panne, Ulrich A1 - Hodoroaba, Vasile-Dan T1 - Limits of detection of µ-XRF with the SEM/EDS for RoHS relevant elements T2 - 76. Jahrestagung der DPG und DPG-Frühjahrstagung CY - Berlin, Germany DA - 2012-03-25 PY - 2012 AN - OPUS4-25525 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Krüger, Jörg T1 - Herstellung von keramischen Implantatbeschichtungen mittels fs-Laserpulsen T2 - Innovationsforum MikroLas CY - Rostock, Germany DA - 2012-03-06 PY - 2012 AN - OPUS4-25526 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Grabolle, Markus A1 - Brehm, Robert A1 - Pauli, Jutta A1 - Dees, F.M. A1 - Hilger, I. A1 - Resch-Genger, Ute T1 - Determination of the labeling density of fluorophore-biomolecule conjugates with absorption spectroscopy N2 - Dye–biomolecule conjugation is frequently accompanied by considerable spectral changes of the dye’s absorption spectrum that limit the use of the common photometrical method for the determination of labeling densities. Here, we describe an improvement of this method using the integral absorbance of the dye instead of its absorbance at the long wavelength maximum to determine the concentration of the biomolecule-coupled dye. This approach is illustrated for three different cyanine dyes conjugated to the antibody IgG. KW - Fluorescent dye KW - Aggregation KW - Dimerization KW - Fluorophore-labeled antibodies KW - Labeling density KW - Dye-to-protein ratio KW - Absorption PY - 2012 U6 - https://doi.org/10.1021/bc2003428 SN - 1043-1802 SN - 1520-4812 VL - 23 IS - 2 SP - 287 EP - 292 CY - Washington, DC AN - OPUS4-25527 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Schultz, C. A1 - Schüle, M. A1 - Endert, H. A1 - Bonse, Jörn A1 - Rau, B. A1 - Schlatmann, R. A1 - Quaschning, V. A1 - Stegemann, B. A1 - Fink, F. T1 - Influence of the mechanical properties of sputtered Mo solar cell back contacts on laser scribing T2 - 76. Jahrestagung der DPG und DPG-Frühjahrstagung der Sektion CY - Berlin, Germany DA - 2012-03-25 PY - 2012 AN - OPUS4-25528 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Dietrich, Paul A1 - Horlacher, T. A1 - Gross, Thomas A1 - Castelli, R. A1 - Wirth, Thomas A1 - Seeberger, P. H. A1 - Unger, Wolfgang T1 - Microarrays - Surface Chemical Characterization T2 - Functional Genomics and Proteomics - Applications, Molecular Diagnostics & Next Generation Sequencing CY - Frankfurt am Main, Germany DA - 2012-02-02 PY - 2012 AN - OPUS4-25529 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Kühn, Andreas A1 - Riesemeier, Heinrich A1 - Radtke, Martin A1 - Ostermann, Markus A1 - Berger, Achim A1 - Panne, Ulrich A1 - Ordavo, I. T1 - 6. Interdisziplinäres Doktorandenseminar (GDCh&DECHEMA)Schnelle ortsaufgelöste Messung der Elementverteilung in TXRF Proben T2 - 6. Interdisziplinäres Doktorandenseminar CY - Berlin, Germany DA - 2012-02-26 PY - 2012 AN - OPUS4-25563 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Schlegel, Moritz-Caspar A1 - Müller, Urs A1 - Panne, Ulrich A1 - Emmerling, Franziska T1 - Early Stages of Cement Hydration - An In-Situ Study Utilizing High Resolution SyXRD T2 - ECM CY - Munich, Germany DA - 2012-03-12 PY - 2012 AN - OPUS4-25564 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Liehr, Sascha A1 - Krebber, Katerina T1 - Application of quasi-distributed and dynamic length and power change measurement using optical frequency domain reflectometry N2 - Application results of a dynamic technique for simultaneous measurement of length changes and optical power changes between multiple reflection points in an optical fiber are presented. The technique is based on incoherent optical frequency domain reflectometry (I-OFDR) and allows for measuring for example length changes and optical power changes quasi-distributed at repetition rates up to 2 kHz. Precise measurement with length change resolutions in the µm-range can be conducted using standard single-mode or multi-mode fibers. Previous results of dynamic refractive index change measurement and the use of polymer optical fibers for high-strain measurement are concluded and possible sources of measurement inaccuracies are discussed. Field test results with sensors installed on a masonry building during a seismic shake test are presented. The versatility and simplicity of this technique makes it potentially interesting for application in the structural health monitoring sector and chemical process control. KW - Distributed strain sensor KW - Dynamic measurement KW - Optical fiber sensor KW - Refractive index sensors KW - Structural health monitoring PY - 2012 U6 - https://doi.org/10.1109/JSEN.2011.2157126 SN - 1530-437X SN - 1558-1748 VL - 12 IS - 1 SP - 237 EP - 245 CY - New York, NY, USA AN - OPUS4-25565 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Gradt, Thomas T1 - Tribotests on wear protective coatings in hydrogen environment T2 - International Hydrogen Energy Development Forum 2012 CY - Fukuoka, Japan DA - 2012-02-02 PY - 2012 AN - OPUS4-25568 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Wöhlecke, Andreas A1 - Müller, Werner T1 - Aktuelle Informationen zum Stand der Arbeit zu den Arbeitsergebnissen des Fachbeirats der BAM zur Zulassung von Geokunststoffen und Dichtungskontrollsystemen T2 - 8. Leipziger Deponiefachtagung CY - Leipzig, Germany DA - 2012-02-28 PY - 2012 AN - OPUS4-25580 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Adam, Christian A1 - Vogel, Christian T1 - Phosphate fertilizer from sewage sludge and meat and bone meal by thermochemical treatment with Cldonors T2 - 3rd Sustainable Phosphorus Summit CY - Sydney, Australia DA - 2012-02-29 PY - 2012 AN - OPUS4-25581 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Simon, Franz-Georg T1 - Aufbereitung von Verbrennungsschlacken T2 - 691. Dechema Kolloquium Siedlungsabfall als Rohstoffquelle CY - Frankfurt am Main, Germany DA - 2012-02-09 PY - 2012 AN - OPUS4-25582 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Berger, Wolfgang A1 - Kalbe, Ute A1 - Krüger, Oliver A1 - Hennecke, D. T1 - Ergebnisse der F & E - Vorhaben (UFOPLAN) zur Validierung von Elutionsverfahren für die Novellierung der BBodSchV T2 - 26. Sitzung des Fachbeirats Bodenuntersuchung des BMU/UBA CY - Berlin, Germany DA - 2012-02-29 PY - 2012 AN - OPUS4-25583 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Lange, Th. A1 - Heinrich, Sebastian A1 - Liebner, Christian A1 - Hieronymus, Hartmut A1 - Klemm, E. T1 - Reaction engeineering aspects of heterogeneously catalyzed oxidations inside the explosion regime in a micro structured reactor T2 - IMRET 12 The International Conferences on Microreaction Technology CY - Lyon, France DA - 2012-02-20 PY - 2012 AN - OPUS4-25584 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Heinrich, Sebastian A1 - Edeling, Florian A1 - Liebner, Christian A1 - Hieronymus, Hartmut A1 - Lange, Th. A1 - Klemm, E. T1 - Safety aspects of heterogeneously catalysed oxidations inside the explosion region in micro reactors T2 - IMRET 12 The International Conferences on Microreaction Technology CY - Lyon, France DA - 2012-02-20 PY - 2012 AN - OPUS4-25585 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Müller, Werner T1 - Stand der Zulassungen für Geokunststoffe nach der novellierten Deponieverordnung T2 - 28. Fachtagung "Die sichere Deponie", Veranstalter: SKZ Con Sem GmbH und AK GWS e. V. CY - Würzburg, Germany DA - 2012-02-09 PY - 2012 AN - OPUS4-25586 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Berger, Wolfgang A1 - Kalbe, Ute A1 - Krüger, Oliver A1 - Hennecke, D. T1 - Aktueller Stand der Entwicklung von Elutionsverfahren für organische Schadstoffe T2 - Fachgespräch Feststoffuntersuchung 2012 CY - Essen, Germany DA - 2012-03-05 PY - 2012 AN - OPUS4-25588 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Stark, Wolfgang A1 - Teteris, Gundars T1 - Einsatz thermoanalytischer Methoden bei der Charakterisierung vernetzender Kunststoffe T2 - Anwenderseminar zur Thermoanalyse, Netzsch, Analytica 2012 CY - Munich, Germany DA - 2012-04-18 PY - 2012 AN - OPUS4-25890 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Pretsch, Thorsten A1 - Ecker, Melanie T1 - Deformable QR Codes with Shape Memory Functionality T2 - E-MRS 2012 Spring Meeting, Symposium Q CY - Strasbourg, France DA - 2012-05-14 PY - 2012 AN - OPUS4-25891 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Pretsch, Thorsten A1 - Bothe, Martin T1 - Actuation behavior of a thermo-responsive elastomer under constant load T2 - E-MRS 2012 Spring Meeting, Symposium Q CY - Strasbourg, France DA - 2012-05-14 PY - 2012 AN - OPUS4-25892 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Taffe, Alexander A1 - Feistkorn, Sascha A1 - Diersch, Norman T1 - Ermittlung von Detektionstiefen an Betonbauteilen mit Radar T2 - Fachtagung Bauwerksdiagnose 2012, Praktische Anwendungen Zerstörungsfreier Prüfungen und Zukunftsaufgaben CY - Berlin, Germany DA - 2012-02-23 PY - 2012 AN - OPUS4-25893 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Köppen, Robert A1 - Emmerling, Franziska A1 - Koch, Matthias T1 - rac-1-(2-aminocarbonyl-2-bromoethyl)-pyridinium bromide N2 - In the crystal structure of the title compound, C8H10BrN2O+·-Br–, intermolecular N—H···Br hydrogen bonds link the molecules into infinite chains along [001]. The inclined angle between the pyridine ring plane and the plane defined by the acid amide group is 63.97 (4)°. PY - 2012 U6 - https://doi.org/10.1107/S1600536812019721 SN - 1600-5368 VL - 68 IS - 6 SP - o1666, sup1 EP - sup5 PB - Munksgaard CY - Copenhagen AN - OPUS4-25894 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Griesche, Axel A1 - Horbach, Jürgen A1 - Meyer, Andreas T1 - Thermodynamics and Correlation Effects on Diffusion in Al-Ni Melts T2 - NIST Diffusion Workshop Series: Multicomponen Diffusion Data and Its Impact on the Materials Design Process: Data Needed; Daa Acquisition; and Data Application CY - Gaithersburg, MD, USA DA - 2012-05-03 PY - 2012 AN - OPUS4-25895 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Griesche, Axel T1 - World Materials Research Institute Forum - An Introduction T2 - NIST Diffusion Workshop Series: Multicomponen Diffusion Data and Its Impact on the Materials Design Process: Data Needed; Data Acquisition; and Data Application CY - Gaithersburg, MD, USA DA - 2012-05-03 PY - 2012 AN - OPUS4-25896 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CHAP A1 - Schönbucher, A. A1 - Schälike, Stefan A1 - Vela-Wallenschus, Iris A1 - Wehrstedt, Klaus-Dieter ED - Schmidt, J. T1 - CFD simulation of large hydrocarbon and peroxide pool fires KW - Pool fire KW - JP 4 KW - Organic peroxide KW - DTBP KW - CFD KW - Surface emissive power KW - Irradiation KW - Safety distances PY - 2012 SN - 978-3-527-33027-0 N1 - Geburtsname von Vela-Wallenschus, Iris: Vela, I. - Birth name of Vela-Wallenschus, Iris: Vela, I. IS - Chapter 9 SP - 139 EP - 157 PB - Wiley-VCH Verlag GmbH & Co. KGaA AN - OPUS4-25897 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - BOOK A1 - Friedrich, Jörg Florian T1 - The plasma chemistry of polymer surfaces - Advanced techniques for surface design KW - Plasma chemistry KW - Polymer surfaces PY - 2012 SN - 978-3-527-31853-7 SP - 1 EP - 466 PB - Wiley-VCH Verlag GmbH & Co. KGaA CY - Weinheim AN - OPUS4-25920 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Tölle, Florian A1 - Rethmeier, Michael A1 - Gumenyuk, Andrey A1 - Backhaus, A. A1 - Olschok, S. A1 - Reisgen, U. T1 - Reduction of weld residual stresses with the electron beam T2 - 2nd IEBW Conference CY - Aachen, Germany DA - 2012-03-26 PY - 2012 AN - OPUS4-25921 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Tamura, T. A1 - Hosohata, S. A1 - Nakase, T. A1 - Kato, S. A1 - Scholz, Christian A1 - Woydt, Mathias T1 - High wear resistance DLC film under high pressure contact T2 - 12. Machine design and tribology division meeting in JSME CY - Ehime-ken, Japan DA - 2012-04-23 KW - Diamond-like carbon KW - Slip-rolling test PY - 2012 SN - 1348-3919 N1 - Sprachen: Japanisch/Englisch - Languages: Japanese/English VL - 12-14 SP - 101 EP - 102 AN - OPUS4-25923 LA - mul AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Babu, N. K. A1 - Brauser, S. A1 - Rethmeier, Michael A1 - Cross, C.E. T1 - Characterization of microstructure and deformation behaviour of resistance spot welded AZ31 magnesium alloy N2 - Resistance spot welds were prepared on 3 mm thick sheets of continuous cast and rolled AZ31 magnesium alloy. The microstructure and composition analysis of weld nugget, heat affected zone (HAZ) and base metal were examined using optical and scanning electron microscopy (HR-SEM and EDS/X). The resistance spot welded magnesium alloy joints consist mainly of weld nugget and HAZ. The nugget contains two different structures, i.e. the cellular-dendritic structure at the edge of the nugget and the equiaxed dendritic structure in the centre of the nugget. The structure transition is attributed to the changes of solidification conditions. In the HAZ, grain boundary melting occurred and grain boundaries became coarse. It has been shown that hardness reduction in the weld nugget and HAZ compared with base metal is evident due to dendritic microstructure and grain growth, respectively. The results showed that spot welded joints have failed in interfacial mode under torsion and tensile–shear loading conditions. Digital image correlation during tensile–shear testing showed that low surface strains occur in the interfacial failure mode, because fracture and deformation happened primarily in the nugget area. KW - Resistance spot welding KW - AZ31 magnesium alloy KW - Microstructure KW - Hardness KW - Torsion KW - Tensile–shear PY - 2012 U6 - https://doi.org/10.1016/j.msea.2012.04.021 SN - 0921-5093 SN - 1873-4936 VL - 549 SP - 149 EP - 156 PB - Elsevier B.V. CY - Amsterdam AN - OPUS4-25924 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Kindrachuk, Vitaliy A1 - Fedelich, Bernard T1 - Simulation of non-isothermal mechanical tests on a single crystal nickel-basis superalloy N2 - An extension of the constitutive viscoplastic model of Meric and Cailletaud is presented. The new model accounts for coupling of plasticity and viscoplasticity to describe the rate dependence at low and moderate temperatures. The model contains two boundaries: an elastic one and a viscoplastic one. Between the boundaries, the only contribution to yielding is the rate dependent viscoplastic mechanism. Once the viscoplastic boundary is reached, an additional rate independent flow mechanism becomes active. However, the extended model is not able to predict properly both creep and long-term relaxation tests simultaneously. Therefore, a deformation-induced softening is assumed, which is supposed to mainly affect static recovery. The model has been calibrated with the mechanical tests on a single crystal nickel-basis superalloy. The uniaxial tests have been carried out in the temperature interval 600°C – 1100°C in [001], [011] and [111] specimens. The predicted creep, relaxation and non-isothermal cyclic tests exhibit reasonable agreement with the experimental observations. KW - Non-isothermal mechanical tests KW - Superalloys KW - Constitutive modeling PY - 2012 UR - http://www.uni-magdeburg.de/ifme/zeitschrift_tm/2012_Heft2_5/21_Kindrachuk.pdf SN - 0232-3869 VL - 32 IS - 2-5 SP - 321 EP - 332 PB - Institut für Mechanik CY - Magdeburg AN - OPUS4-25925 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - GEN A1 - Bremser, Wolfram ED - Pavese, F. ED - Bär, M. ED - Filtz, J.-R. ED - Forbes, A.B. ED - Pendrill, L. ED - Shirono, K. T1 - Self-consistent reference value estimation N2 - Much has been published over the last years on finding the best (consensus) reference value (RV) for a given set of laboratory data attained in inter- or key comparisons (the latter with a specific view to the CIPM MRA). However, the discussion is ongoing. Except cases where real reference values are available from other sources, the quality of the (consensus value is of major importance in proficiency testing, method Validation, or reference material certification. A distribution-free, self-consistent RV estimation approach has been developed which is based on the single criterion of participant's compatibility, at the cost of adjusted uncertainties. The final result is a fully compatible data set with minimum Overall variance, and adjusted uncertainties for those values reported which had to be made compatible with the (key comparison) reference value. Any outlier discussion becomes obsolete, including considerations concerning different degrees of robustness of the various location and .dispersion estimators available. The penalty for "badly" performing laboratories is a large attributed uncertainty which forces them to either improve the measurement or adjust (i.e. reduce) their performance Claims. The evaluation algorithm is described. An example from a CCQM comparison is given, and consequences for the performance Claims of the participants discussed. KW - Location parameter KW - Dispersion parameter KW - Reference value KW - Key comparison PY - 2012 SN - 978-981-4397-94-0 N1 - Serientitel: Series on advances in mathematics for applied sciences – Series title: Series on advances in mathematics for applied sciences VL - 84 SP - 58 EP - 65 PB - World Scientific Publ. AN - OPUS4-25926 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Flores, E. A1 - Idrees, F. A1 - Moussay, P. A1 - Viallon, J. A1 - Wielgosz, R. A1 - Fernández, T. A1 - Ramírez, S. A1 - Rojo, A. A1 - Shinji, U. A1 - Waldén, J. A1 - Sega, M. A1 - Sang-Hyub, O. A1 - Macé, T. A1 - Couret, C. A1 - Qiao, H. A1 - Smeulders, D. A1 - Guenther, F.R. A1 - Thorn, W.J. III A1 - Tshilongo, J. A1 - Ntsasa, N.G. A1 - Stovcík, V. A1 - Valková, M. A1 - Konopelko, L. A1 - Gromova, E. A1 - Nieuwenkamp, G. A1 - Wessel, R. M. A1 - Milton, M. A1 - Harling, A. A1 - Vargha, G. A1 - Tuma, Dirk A1 - Kohl, Anka A1 - Schulz, Gert T1 - Final report on international comparison CCQM-K74: Nitrogen dioxide, 10 µmol/mol N2 - There is a high international priority attached to activities which reduce NOx in the atmosphere. The current level of permitted emissions is typically between 50 µmol/mol and 100 µmol/mol, but lower values are expected in the future. Currently, ambient air quality monitoring regulations also require the measurement of NOx mole fractions as low as 0.2 µmol/mol. The production of accurate standards at these levels of mole fractions requires either dilution of a stable higher concentration gas standard or production by a dynamic technique, for example one based on permeation tubes. The CCQM-K74 key comparison was designed to evaluate the level of comparability of National Metrology Institutes' measurement capabilities and standards for nitrogen dioxide (NO2) at a nominal mole fraction of 10 µmol/mol. The measurements of this key comparison took place from June 2009 to May 2010. Seventeen laboratories took part in this comparison coordinated by the BIPM and VSL. The key comparison reference value was based on BIPM measurement results, and the standard measurement uncertainty of the reference value was 0.042 µmol/mol. This key comparison demonstrated that the results of the majority of the participants agreed within limits of ±3% relative to the reference value. The results of only one laboratory lay significantly outside these limits. Likewise this comparison made clear that a full interpretation of the results of the comparison needed to take into account the presence of nitric acid (in the range 100 nmol/mol to 350 nmol/mol) in the cylinders circulated as part of the comparison, as well as the possible presence of nitric acid in the primary standards used by participating laboratories. Main text. To reach the main text of this paper, click on Final Report. Note that this text is that which appears in Appendix B of the BIPM key comparison database kcdb.bipm.org/. The final report has been peer-reviewed and approved for publication by the CCQM, according to the provisions of the CIPM Mutual Recognition Arrangement (MRA). DatesIssue 1A (Technical Supplement 2012) KW - Ringversuch KW - NO2 KW - Spurenverunreinigungen KW - Meßverfahren PY - 2012 U6 - https://doi.org/10.1088/0026-1394/49/1A/08005 SN - 0026-1394 SN - 1681-7575 VL - 49 IS - 08005 SP - 1 EP - 117 PB - Inst. of Physics Publ. CY - Bristol AN - OPUS4-25927 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Flores, E. A1 - Idrees, F. A1 - Moussay, P. A1 - Viallon, J. A1 - Wielgosz, R. A1 - Fernández, T. A1 - Rojo, A. A1 - Ramírez, S. A1 - Aoki, N. A1 - Kato, K. A1 - Jeongsoon, L. A1 - Moon, D. A1 - Kim, J.-S. A1 - Harling, A. A1 - Milton, M. A1 - Smeulders, D. A1 - Guenther, F.R. A1 - Gameson, L. A1 - Botha, A. A1 - Tshilongo, J. A1 - Ntsasa, N.G. A1 - Valková, M. A1 - Konopelko, L. A1 - Kustikov, Y.A. A1 - Ballandovich, V. S. A1 - Gromova, E.V. A1 - Tuma, Dirk A1 - Kohl, Anka A1 - Schulz, Gert T1 - Final report of the pilot study CCQM-P110-B1: A comparison of nitrogen dioxide (NO2) in nitrogen standards at 10 µmol/mol by Fourier transform infrared spectroscopy (FT-IR) N2 - This pilot study compares the performance of participants in analyzing gas mixtures of nitrogen dioxide in nitrogen by comparison with in-house gravimetric standards using Fourier transformed infrared spectroscopy (FT-IR). In this study the same gas mixtures were used as in the key comparison CCQM-K74, which was designed to evaluate the level of comparability of National Metrology Institutes' measurement capabilities for nitrogen dioxide (NO2) at a nominal mole fraction of 10 µmol/mol. In the comparison CCQM-K74 most of the participants used chemiluminescence, with a small number using UV absorption or FT-IR spectroscopy, and thus it is of interest to improve understanding of the comparative performance of these techniques because they do not exhibit any cross-sensitivity to nitric acid (HNO3), which was known to be present in the mixtures used for the comparison. The results of this pilot study indicate good consistency and a level of agreement similar to that reported in the comparison CCQM-K74, demonstrating that FT-IR can be operated as a comparison method when calibrated with appropriate gas standards and can achieve similar measurement uncertainties to chemiluminescence and UV absorption techniques. An additional pilot study, CCQM-P110-B2, was conducted on the same gas mixtures in parallel with this pilot study. The second study addressed FT-IR spectroscopy when used to measure the gas mixtures with respect to reference spectra. The results of this second study will be reported elsewhere. Main text. To reach the main text of this paper, click on Final Report. The final report has been peer-reviewed and approved for publication by the CCQM-GAWG. DatesIssue 1A (Technical Supplement 2012) KW - Ringversuch KW - NO2 KW - Spurenverunreinigungen KW - FT-IR-Spektroskopie PY - 2012 U6 - https://doi.org/10.1088/0026-1394/49/1A/08006 SN - 0026-1394 SN - 1681-7575 VL - 49 IS - 08006 SP - 1 EP - 76 PB - Inst. of Physics Publ. CY - Bristol AN - OPUS4-25928 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Kato, K. A1 - Watanabe, T. A1 - Heine, Hans-Joachim A1 - Boissière, Claudia A1 - Schulz, Gert A1 - Woo, J.-C. A1 - Kim, J.S. A1 - Sang-Hyub, O. A1 - Bae, H. K. A1 - Kim, Y.D. A1 - Qiao, H. A1 - Guenther, F.R. A1 - Roderick, G. C. A1 - Miller, W. A1 - Smeulders, D. A1 - Botha, A. A1 - van Rensburg, M.J. A1 - Tshilongo, J. A1 - Leshabane, N. A1 - Ntsasa, N. A1 - Milton, M. A1 - Vargha, G. A1 - Harling, A. A1 - Konopelko, L. A1 - Kustikov, Y.A. A1 - Vasserman, I.I. A1 - Zavyalov, S. V. A1 - Popova, T.A. A1 - Pankratov, V.V. A1 - Pir, M.N. A1 - Maltsev, M.A. A1 - Oudwater, R. A1 - Persijn, S. A1 - van Wijk, J. A1 - Wessel, R. M. T1 - International comparison CCQM-K66: Impurity analysis of methane N2 - This key comparison was performed to demonstrate the capability of NMIs to analyse the purity of methane for use as a source gas in the preparation of standard gas mixtures. This capability is an essential requirement for the preparation of accurate standards of natural gas and some other fuels. Since it is difficult to carry out a comparison with individual samples of pure gas, the sample for this comparison was a synthetic mixture of high purity methane with selected added impurities of nitrogen, argon, carbon dioxide and ethane. These mixtures were prepared by a gas company as a batch of 10 cylinders and their homogeneity and stability were evaluated by NMIJ. The KCRVs for the four different analytes in this key comparison are based on a consensus of values reported by participants. The uncertainties in the degrees of equivalence were calculated by combining the reported uncertainties with the homogeneity of the samples and the uncertainty of the KCRV. The results submitted are generally consistent with the KCRV within the estimated uncertainties. Finally, this comparison demonstrates that the analysis of nitrogen, argon, carbon dioxide and ethane in methane at amount fractions of 1 µmol/mol to 5 µmol/mol is generally possible with an uncertainty of 5% to 10%. Main text. To reach the main text of this paper, click on Final Report. Note that this text is that which appears in Appendix B of the BIPM key comparison database kcdb.bipm.org/. The final report has been peer-reviewed and approved for publication by the CCQM, according to the provisions of the CIPM Mutual Recognition Arrangement (MRA). DatesIssue 1A (Technical Supplement 2012) KW - Ringversuch KW - Methan KW - Spurenverunreinigungen KW - Gaschromatographie PY - 2012 U6 - https://doi.org/10.1088/0026-1394/49/1A/08001 SN - 0026-1394 SN - 1681-7575 VL - 49 IS - 08001 SP - 1 EP - 76 PB - Inst. of Physics Publ. CY - Bristol AN - OPUS4-25929 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Tuma, Dirk A1 - Ulanova, T. A1 - Chobanov, K. A1 - Maurer, G. T1 - Neue Untersuchungen zum Phänomen Aussalzen mit einem nahekritischen Gas N2 - Untersuchungen zur gasinduzierten Phasentrennung bzw. zum Aussalzen mit nahekritischen Gasen wurden an verschiedenen wässrigen Lösungen (auch mit ionischem Fluid) durchgeführt. Ziel war der Nachweis und die Charakterisierung von Hochdruckmehrphasengleichgewichten, die sich für eine technische Anwendung eignen. Kriterien hierfür sind Auftreten des Flüssig/flüssig-Phasenzerfalls bei relativ niedrigem Druck, seine Existenz über einen weiten Druck- und Zusammensetzungsbereich und damit verbunden eine druckinduzierte Änderung der Zusammensetzung der koexistierenden Flüssigphasen. Die eingesetzten ionischen Fluide zeigen zwar das gewünschte Phasenverhalten, erfüllen die Kriterien aber nur teilweise. Im Vorgriff auf eine mögliche Anwendung wurde die Verteilung eines hochmolekularen, amphiprotischen Naturstoffs auf die koexistierenden Flüssigphasen untersucht und durch Einstellung des pH-Werts gezielt verändert. ------------------------------------------------------------------------------------------------------------------------------------- Investigations on gas-induced phase split, i.e., salting out by a nearcritical gas, were carried out for several aqueous solutions (including an ionic liquid). The research aimed to verify and characterize high-pressure multiphase equilibria that might be suitable for technical applications. The respective criteria are occurrence at relatively low pressures and the existence of the phase equilibrium phenomenon over a significant region of both composition and pressure, which is related to a pressure-induced significant alteration of the compositions of the coexisting liquid phases. The employed ionic liquids revealed the expected phase behavior but without full compliance of all criteria. In anticipation of an application, the partitioning of an amphiprotic, high-molecular biomolecule to the coexisting liquid phases was successfully administered via a pH variation. KW - Dampf/flüssig/flüssig-Gleichgewicht KW - Dissoziationsgleichgewicht KW - Ionische Fluide KW - Nahekritisches Gas KW - Dissociation equilibrium KW - Ionic liquids KW - Nearcritical gas KW - Ternary systems KW - Vapor-liquid-liquid equilibrium PY - 2012 U6 - https://doi.org/10.1002/cite.201100180 SN - 0009-286X SN - 1522-2640 VL - 84 IS - 4 SP - 456 EP - 464 PB - Wiley-VCH Verl. CY - Weinheim AN - OPUS4-25930 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Nieuwenkamp, G. A1 - Wessel, R. M. A1 - van der Veen, A.M.H. A1 - Ziel, P. R. A1 - Han, Q. A1 - Tuma, Dirk A1 - Woo, J.-C. A1 - Fuko, J.T. A1 - Szilágyi, N. A1 - Büki, T. A1 - Konopelko, L. A1 - Kustikov, Y.A. A1 - Popova, T.A. A1 - Pankratov, V.V. A1 - Pir, M.N. A1 - Nazarov, E.V. A1 - Ehvalov, L.V. A1 - Timofeev, A.U. A1 - Kuzmina, T.A. A1 - Meshkov, A.V. A1 - Valková, M. A1 - Pätoprsty, V. A1 - Downey, M. A1 - Vargha, G. A1 - Brown, A. A1 - Milton, M. T1 - International comparison CCQM-K77: Refinery gas N2 - Refinery gas is a complex mixture of hydrocarbons and non-combustible gases (e.g., carbon monoxide, carbon dioxide, nitrogen, helium). It is obtained as part of the refining and conversion of crude oil. This key comparison aims to evaluate the measurement capabilities for these types of mixtures. The results of the key comparison indicate that the analysis of a refinery-type gas mixture is for some laboratories a challenge. Overall, four laboratories (VSL, NIM, NPL and VNIIM) have satisfactory results. The results of some participants highlight some non-trivial issues, such as appropriate separation between saturated and unsaturated hydrocarbons, and issues with the measurement of nitrogen, hydrogen and helium. Main text. To reach the main text of this paper, click on Final Report. Note that this text is that which appears in Appendix B of the BIPM key comparison database kcdb.bipm.org/. The final report has been peer-reviewed and approved for publication by the CCQM, according to the provisions of the CIPM Mutual Recognition Arrangement (MRA). DatesIssue 1A (Technical Supplement 2012) KW - Ringversuch KW - Raffineriegas KW - Chromatographische Analyse PY - 2012 U6 - https://doi.org/10.1088/0026-1394/49/1A/08003 SN - 0026-1394 SN - 1681-7575 VL - 49 IS - 08003 SP - 1 EP - 71 PB - Inst. of Physics Publ. CY - Bristol AN - OPUS4-25931 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Miccoli, Lorenzo A1 - Müller, U. A1 - Malaga, Katarina T1 - A new grouting material for the repair of cracks in earthen structures T2 - XIth International Conference on the Study and Conservation of Earthen Architectural Heritage (Terra 2012) CY - Lima, Peru DA - 2012-04-22 PY - 2012 AN - OPUS4-25932 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Krüger, Simone A1 - Deubel, Jan A1 - Raspe, Tina A1 - Fettig, Ina A1 - Piechotta, Christian T1 - Chemische Brandspurenanalytik T2 - Vfdb 2012 -Jahresfachtagung CY - Köln, Deutschland DA - 2012-05-21 KW - Brandbeschleuniger KW - Brandgase KW - Brand KW - Partikel KW - Analytik PY - 2012 SP - 517 EP - 539 PB - VdS Schadenverhütung CY - Köln AN - OPUS4-25933 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Miccoli, Lorenzo A1 - Müller, U. A1 - Perrone, Ch. A1 - Ziegert, C. T1 - Earth Block masonry, rammed earth and cob: earthen components from different construction techniques and their structural performance T2 - XIth International Conference on the Study and Conservation of Earthen Architectural Heritage (Terra 2012) CY - Lima, Peru DA - 2012-04-22 PY - 2012 AN - OPUS4-25934 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Kuka, K. A1 - Illerhaus, Bernhard A1 - Fritsch, G. A1 - Joschko, M. A1 - Rogasik, H. A1 - Paschen, M. A1 - Schulz, H. A1 - Seyfarth, M. T1 - Maschinelle Entnahme ungestörter Bodenprobensäulen für die Röntgen-Computertomographie N2 - Haben Sie sich schon einmal überlegt, was unter Ihren Füßen geschieht, wenn Sie über eine Wiese gehen? Könnten Sie beschreiben, wie es im Boden aussieht? Wie ist die Struktur des Bodens, wie breiten sich darin die Wurzeln der Pflanzen aus und wie ist die Wasserverteilung im Porenraum, welche die Umsatzprozesse im Boden bestimmt? Diese Fragen können Sie beantworten, wenn sie die Möglichkeit nutzen, den Boden mittels Computertomographie visuell darzustellen und quantitativ zu analysieren. Dazu müssen Sie aber zunächst nicht nur eine Probe, sondern statistisch relevant viele Proben aus dem Boden entnehmen. Eine Maschine zur zerstörungsfreien Bodenprobenahme ist notwendig. Wir beschreiben hier den Aufbau und den Einsatz eines solchen Gerätes und zeigen erste dadurch gewonnene Makro- & Mikro-Computertomographiebilder. KW - Zerstörungsfreie Bodenproben KW - Computertomographie PY - 2012 SN - 1616-069X SN - 0948-5112 VL - 129 SP - 42 EP - 46 PB - Deutsche Gesellschaft für Zerstörungsfreie Prüfung CY - Berlin AN - OPUS4-25935 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - BOOK A1 - Wloka, Monika T1 - Leitfaden zur Auditierung von Managementsystemen - Kommentar zur DIN EN ISO 19011:2011 - Änderungen gegenüber der DIN EN ISO 19011:2002 KW - Auditierung KW - Managementsysteme KW - DIN EN ISO 19011 PY - 2012 SN - 978-3-410-22388-7 SP - 1 EP - 123 PB - Beuth CY - Berlin AN - OPUS4-25937 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Krüger, Simone A1 - Deubel, Jan A1 - Fettig, Ina A1 - Raspe, Tina A1 - Piechotta, Christian T1 - Brandanalytik T2 - Arbeitstagung Brandschäden 2012 CY - Rennerod, Germany DA - 2012-05-09 PY - 2012 AN - OPUS4-25938 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Krüger, Simone A1 - Deubel, Jan A1 - Fettig, Ina A1 - Raspe, Tina A1 - Piechotta, Christian T1 - Methoden der Brandspurenanalytik T2 - vfdb Jahrestagung 2012 CY - Cologne, Germany DA - 2012-05-21 PY - 2012 AN - OPUS4-25939 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Reiners, Georg T1 - Aktueller Stand der Normung in den Nanotechnologien T2 - 23th Meeting of Dechema/VCI WG "Responsible Production and Use of Nanomaterials" CY - Frankfurt am Main, Germany DA - 2012-05-09 PY - 2012 AN - OPUS4-25870 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Priebe, Nsesheye Susan T1 - Introduction to the SPIN project T2 - SPIN Lectures in Makerere University CY - Kampala, Uganda DA - 2012-03-22 PY - 2012 N1 - Geburtsname von Priebe, Nsesheye Susan: Msinjili, N. S. - Birth name of Priebe, Nsesheye Susan: Msinjili, N. S. AN - OPUS4-25871 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Natte, Kishore A1 - Behnke, Thomas A1 - Orts Gil, Guillermo A1 - Würth, Christian A1 - Friedrich, Jörg Florian A1 - Österle, Werner A1 - Resch-Genger, Ute T1 - Synthesis and characterisation of highly fluorescent core-shell nanoparticles based on Alexa dyes N2 - Current and future developments in the emerging field of nanobiotechnology are closely linked to the rational design of novel fluorescent nanomaterials, e.g. for biosensing and imaging applications. Here, the synthesis of bright near infrared (NIR)-emissive nanoparticles based on the grafting of silica nanoparticles (SNPs) with 3-aminopropyl triethoxysilane (APTES) followed by covalent attachment of Alexa dyes and their subsequent shielding by an additional silica shell are presented. These nanoparticles were investigated by dynamic light scattering (DLS), transmission electron microscopy (TEM) and fluorescence spectroscopy. TEM studies revealed the monodispersity of the initially prepared and fluorophorelabelled silica particles and the subsequent formation of raspberry-like structures after addition of a silica precursor.Measurements of absolute fluorescence quantum yields of these scattering particle suspensions with an integrating sphere setup demonstrated the influence of dye labelling density-dependent fluorophore aggregation on the signaling behaviour of such nanoparticles. KW - Silica KW - Alexa dyes KW - Fluorescent particles KW - Quantum yields KW - Nanoparticles KW - Protective shell KW - Nanobiotechnology PY - 2012 U6 - https://doi.org/10.1007/s11051-011-0680-9 SN - 1388-0764 SN - 1572-896X VL - 14 IS - 2 SP - 680-1 - 680-10 PB - Kluwer CY - Dordrecht AN - OPUS4-25872 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Huber, Alexandra A1 - Behnke, Thomas A1 - Würth, Christian A1 - Jäger, Christian A1 - Resch-Genger, Ute T1 - Spectroscopic characterization of coumarin-stained beads: quantification of the number of fluorophores per particle with solid-state 19F-NMR and measurement of absolute fluorescence quantum yields N2 - The rational design of nano- and micrometer-sized particles with tailor-made optical properties for biological, diagnostic, and photonic applications requires tools to characterize the signal-relevant properties of these typically scattering bead suspensions. This includes methods for the preferably nondestructive quantification of the number of fluorophores per particle and the measurement of absolute fluorescence quantum yields and absorption coefficients of suspensions of fluorescent beads for material performance optimization and comparison. Here, as a first proof-of-concept, we present the first time determination of the number of dye molecules per bead using nondestructive quantitative (19F) NMR spectroscopy and 1000 nm-sized carboxylated polystyrene particles loaded with varying concentrations of the laser dye coumarin 153 containing a CF3 group. Additionally, the signal-relevant optical properties of these dye-loaded particles were determined in aqueous suspension in comparison to the free dye in solvents of different polarity with a custom-built integrating sphere setup that enables spectrally resolved measurements of emission, transmission, and reflectance as well absolute fluorescence quantum yields. These measurements present an important step toward absolute brightness values and quantitative fluorescence analysis with particle systems that can be exploited, for example, for optical imaging techniques and different fluorescence assays as well as for the metrological traceability of fluorescence methods. PY - 2012 U6 - https://doi.org/10.1021/ac3000682 SN - 0003-2700 SN - 1520-6882 VL - 84 IS - 8 SP - 3654 EP - 3661 PB - American Chemical Society CY - Washington, DC AN - OPUS4-25873 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Fratzscher, Daniel A1 - Beckmann, Jörg A1 - von Chrzanowski, Lars A1 - Ewert, Uwe T1 - Computed THz - tomography N2 - Available THz Time Domain Spectroscopy (THz-TDS) systems can be applied in a pulse echo mode for tomographic application. In contrast to common transmission methods, a TDS reflection geometry was used to inspect cylindrical polyethylene samples with internal voids of known shape. The geometry of the voids was simulated and its shape was reconstructed. B-scan pulse echo images were acquired in the time domain, similar to UT pulse echo techniques on basis of the numeric model. The results were used to verify the simulation model and the reconstruction algorithm, based on a modified Synthetic Aperture Focusing Technique (SAFT). The model was used to conclude recommendations on an optimized measurement setup in the reflection mode. Based on that, the quality of the reconstructed tomograms was improved. T2 - 18th WCNDT - World conference on nondestructive testing CY - Durban, South Africa DA - 2012-04-16 KW - THz KW - Computed tomography KW - Non metallics KW - SAFT KW - Delaminations PY - 2012 SN - 978-0-620-52872-6 SP - 1 EP - 10 (Paper 291) AN - OPUS4-25874 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Osterloh, Kurt A1 - Zscherpel, Uwe T1 - Ways of digital image processing to obtain fast and unbiased results N2 - The ultimate purpose of digital image filtering is to support the visual identification of certain features expressed by characteristic shapes and patterns. Numerous recipes, algorithms and ready made programs exist nowadays that predominantly have in common that users have to set certain parameters. Particularly if processing is fast and shows results rather immediately, the choice of parameters may be guided by making the image 'looking nice'. However, in practical situations most users are not in a mood to 'play around' with a displayed image, particularly if they are in a stressy situation as it may encountered in security applications. The requirements for the application of digital image processing under such circumstances will be discussed with an example of automatic filtering without manual parameter settings that even entails the advantage of delivering unbiased results. T2 - 18th WCNDT - World conference on nondestructive testing CY - Durban, South Africa DA - 2012-04-16 KW - Digital Image Processing KW - Digital filter KW - Filter parameter KW - Unbiased image processing KW - Security PY - 2012 SN - 978-0-620-52872-6 SP - 1 EP - 10 (Paper 284) AN - OPUS4-25875 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Osterloh, Kurt A1 - Wrobel, Norma T1 - Approaching an understanding of risk: a subject for the EFNDT working group 5 'NDT technology for public security and safety' N2 - Safety and security both entail freedom from danger, i.e. unacceptable risk, whatever the cause might be. This entails an understanding of the term 'risk' that is broadly used in areas such as economics, health, insurance etc. According a rather popular definition used in the economical sciences for a long time (KNIGHT), risk has a lot in common with uncertainty while the former is regarded quantifiable and the latter one is not. However, it has to be taken into account that there are other understandings of 'uncertainty'. Particularly encountering rare events never experienced before and recent contemporary definitions are weakening Knightfs differentiation. This is reflected in some recent standard definitions. Attempts have been made to define a risk as common as possible covering not only societal, ecological and financial areas but also natural and technical, ones. This is of particular concern in non-destructive testing. This raises the question how far this can be achieved in a common understanding, i.e. the discussion on this term seems not at all finished yet. It is a common ambition to lower the risk by several actions including detection technologies. This entails that a risk could be estimated somehow. The existence of numerous approaches indicates the complexity of this question. The EFNDT (European Federation for Non-Destructive Testing) Working Group 5 took a commitment also to tackle this central aspect of safety and security in its understanding as a bridging forum between these two areas. T2 - 18th WCNDT - World conference on nondestructive testing CY - Durban, South Africa DA - 2012-04-16 KW - Risk definition KW - Risk assessment KW - Vocabulary standards KW - EFNDT Working Group 5 (WG5) PY - 2012 SN - 978-0-620-52872-6 SP - 1 EP - 8 (Paper 474) AN - OPUS4-25876 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Osterloh, Kurt A1 - Bücherl, T. A1 - Zscherpel, Uwe A1 - Ewert, Uwe T1 - Image recovery by removing stochastic artefacts identified as local asymmetries N2 - Stochastic artefacts are frequently encountered in digital radiography and tomography with neutrons. Most obviously, they are caused by ubiquitous scattered radiation hitting the CCD-sensor. They appear as scattered dots and, at higher frequency of occurrence, they may obscure the image. Some of these dotted interferences vary with time, however, a large portion of them remains persistent so the problem cannot be resolved by collecting stacks of images and to merge them to a median image. The situation becomes even worse in computed tomography (CT) where each artefact causes a circular pattern in the reconstructed plane. Therefore, these stochastic artefacts have to be removed completely and automatically while leaving the original image content untouched. A simplified image acquisition and artefact removal tool was developed at BAM and is available to interested users. Furthermore, an algorithm complying with all the requirements mentioned above was developed that reliably removes artefacts that could even exceed the size of a single pixel without affecting other parts of the image. It consists of an iterative two-step algorithm adjusting pixel values within a 3 × 3 matrix inside of a 5 × 5 kernel and the centre pixel only within a 3 × 3 kernel, resp. It has been applied to thousands of images obtained from the NECTAR facility at the FRM II in Garching, Germany, without any need of a visual control. In essence, the procedure consists of identifying and tackling asymmetric intensity distributions locally with recording each treatment of a pixel. Searching for the local asymmetry with subsequent correction rather than replacing individually identified pixels constitutes the basic idea of the algorithm. The efficiency of the proposed algorithm is demonstrated with a severely spoiled example of neutron radiography and tomography as compared with median filtering, the most convenient alternative approach by visual check, histogram and power spectra analysis. KW - Data processing methods KW - Image filtering KW - Pattern recognition KW - Cluster finding KW - Calibration and fitting methods PY - 2012 U6 - https://doi.org/10.1088/1748-0221/7/04/C04018 SN - 1748-0221 VL - 7 IS - April SP - 1 EP - 14 PB - Inst. of Physics Publ. CY - London AN - OPUS4-25877 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Erning, Johann Wilhelm A1 - Frenz, P. T1 - Metallene Werkstoffe in Kontakt mit Trinkwasser - Internationale und nationale Normung T2 - 8. Korrosionum - Werkstoffe für die Trinkwasserinstallation - Korrosion und Korrosionsschutz CY - Stuttgart-Vaihingen, Deutschland DA - 2012-04-23 KW - Metallene Werkstoffe in Kontakt mit Trinkwasser KW - DIN 50930-6 KW - DIN EN 15664-1 KW - DIN EN 16056 KW - DIN EN 16058 KW - DVGW-Regelwerk KW - 4MS-Gruppe PY - 2012 SN - 978-3-935406-41-3 SP - 85 EP - 90 PB - DECHEMA CY - Frankfurt/M. AN - OPUS4-25878 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Akkerman, Floris T1 - Die Ökodesign-Richtlinie - mehr als nur Glühlampen und Kühlschränke N2 - Die Ökodesign-Richtlinie soll die Umweltauswirkungen von Produkten verringern, indem Anforderungen an ihre technische Beschaffenheit gestellt werden, die für den Marktzugang im Europäischen Wirtschaftsraum (EWR) erfüllt sein müssen. Nach und nach werden mehr Produktgruppen erfasst und die einzelnen Anforderungen verschärft. Die wichtigste Motivation für diese Regelungen liegt in der Umsetzung der 20/20/20-Ziele für den Klimaschutz, insbesondere der Steigerung der Energieeffizienz. KW - Energieeffizienz KW - Ökodesign PY - 2012 SN - 1867-4046 VL - 5 IS - II SP - 4 EP - 6 PB - Beuth CY - Berlin AN - OPUS4-25879 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Fontana, Patrick A1 - Pirskawetz, Stephan T1 - Beurteilung der Wirksamkeit von Fasern zur Reduzierung von Schrumpfrissen in Beton N2 - Es ist bekannt, dass eine Faserbewehrung die Schrumpfrissbildung in Beton vermindern kann. In der Literatur finden sich jedoch zum Teil widersprüchliche Angaben über die Wirksamkeit unterschiedlicher Faserarten, und deren Wirkungsmechanismus ist noch nicht vollständig geklärt. Fasern, die in Deutschland als Betonzusatzstoff eingesetzt werden sollen, bedürfen einer Zulassung durch das DIBt, das für den Nachweis ihrer Wirksamkeit zur Verminderung der Schrumpfrissbildung ein Prüfverfahren mit großformatigen Platten vorschreibt. In diesem Bericht werden die Ergebnisse einer Studie vorgestellt, in der die Eignung verschiedener Prüfverfahren hinsichtlich der Beurteilung der Wirksamkeit von Polymerfasern untersucht wurde. Dieser Bericht ist eine verkürzte Fassung eines Beitrags zum 52. Forschungskolloquium des DAfStb. KW - Plastisches Schwinden KW - Schrumpfrisse KW - Beton KW - Fasern KW - Prüfverfahren PY - 2012 U6 - https://doi.org/10.1002/best.201200007 SN - 0005-9900 SN - 1437-1006 VL - 107 IS - 5 SP - 328 EP - 334 PB - Ernst CY - Berlin AN - OPUS4-25900 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Feistkorn, Sascha T1 - Gütebewertung qualitativer Prüfaufgaben in der zerstörungsfreien Prüfung im Bauwesen am Beispiel des Impulsradarverfahrens N2 - In der vorgestellten Dissertation wurde auf Grundlage der POD(a)-Analyse eine Methodik entwickelt, um die Güte qualitativer Prüfaufgaben in der zerstörungsfreien Prüfung im Bauwesen objektiv zu bewerten. Dazu ist die POD(a)-Analyse nach Berens [4] erstmals auf die zerstörungsfreie Prüfung im Bauwesen am Beispiel des Impulsradars übertragen worden. Mithilfe der faktoriellen Versuchsplanung wurden Testkörper konzipiert, an denen mit acht unterschied - lichen Radarprüfsystemen die entsprechenden Messdaten aufgezeichnet wurden, aus denen anschließend mithilfe der POD(a)-Analyse der Kennwert der zuverlässigen Detektionstiefe a90/95 berechnet wurde. Der Wert a90/95 beinhaltet hierbei die zuverlässige Detektions - tiefe, in der ein metallischer Reflektor mit einer Wahrscheinlichkeit von 90% (a90/95) in 95 (a90/95) von 100 Fällen mit dem Impulsradar objektiv geortet wird. Anhand dieses Kennwerts a90/95 wurden unterschiedliche Radarprüfsysteme charakterisiert und miteinander verglichen, sodass nun ein objektives Gütekriterium geschaffen wurde. Zusätzlich ist es möglich, anhand der zuverlässigen Detektionstiefe a90/95 den Einfluss von geänderten Randbedingungen wie z. B. des Reflektordurchmessers auf die Detektion metallischer Reflektoren zu quantifizieren. Es ist zu beachten, dass eine POD(a)- Kurve die Zuverlässigkeit eines ZfPSystems immer nur in seinem Anwendungsfeld bewertet, sodass die Gültigkeit der Aussage auf den Umgebungskontext des ZfP-Systems beschränkt ist. KW - Probability of detection KW - Impulsradar KW - Radar PY - 2012 U6 - https://doi.org/10.1002/best.201290057 SN - 0005-9900 SN - 1437-1006 VL - 107 IS - 5 SP - 365 EP - 368 PB - Ernst CY - Berlin AN - OPUS4-25901 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Holtappels, Kai A1 - Kluge, Martin A1 - Ferrero, Fabio A1 - Schmidtchen, Ulrich T1 - Acetylenflaschen im Feuer N2 - Acetylen ist eines der wichtigsten technischen Gase und findet insbesondere Anwendung beim Schweißen und Schneiden verschiedener Werkstoffe. Damit Acetylen in entsprechenden Mengen vor Ort zur Verfügung gestellt werden kann, wird es in Druckgasbehälter abgefüllt. Im Falle eines Brandes stehen Acetylenflaschen im Verdacht, jederzeit – auch nach Löschen des Feuers – aufgrund einer möglicherweise initiierten Zerfallsreaktion zu bersten. Um insbesondere Personenschäden zu vermeiden, evakuieren und sperren die Rettungskräfte einen Sicherheitsbereich mit einem Radius von mindestens 200 m um die verdächtige Flasche ab. Gleichzeitig wird umgehend mit der Kühlung der Flasche begonnen. Wie lange muss aber eine Acetylenflasche gekühlt werden, bis sie sicher abtransportiert werden kann, und wie lange muss der Sicherheitsbereich mit dem großen Radius aufrecht erhalten werden? Diesen Fragen ist die BAM in den vergangenen Jahren im Rahmen verschiedener Untersuchungen und Projekte nachgegangen. KW - Acetylen KW - Druckbehälter KW - Poröses Material KW - Lösungsmittel PY - 2012 SN - 2191-0073 N1 - Geburtsname von Kluge, Martin: Beckmann-Kluge, M. - Birth name of Kluge, Martin: Beckmann-Kluge, M. VL - 2 IS - 4 SP - 19 EP - 25 PB - Springer-VDI-Verl. CY - Düsseldorf AN - OPUS4-25902 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Döring, Ingo T1 - GGAV - Änderungen der Ausnahme 20 KW - Gefahrgut KW - GGAV KW - Ausnahme Nr. 20 PY - 2012 SN - 1439-5770 VL - 23 IS - 05 SP - 1 EP - 5 PB - Storck CY - Hamburg AN - OPUS4-25903 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Hohendorf, Stefan A1 - Bartholmai, Matthias T1 - Intelligente Gefahrgutbehälter - IBC mit Gedächtnis N2 - Trotz strenger gesetzlicher Regelungen kommt es immer wieder zu schwerwiegenden Unfällen und Mängeln beim Transport und der Lagerung von Gefahrgütern. Die Ursachen dafür sind oft technisches, aber auch menschliches Versagen. Nicht zu unterschätzen ist die ständig wachsende Anzahl von Gefahrguttransporten auf deutschen Straßen. Waren 2002 noch 126 Mio. t Fracht mit Gefahrguttransporten im Straßenverkehr unterwegs, stieg die Frachtmenge im Jahr 2008 bereits auf 171 Mio. t. In den letzen Jahren ereigneten sich nach Angaben des statistischen Bundesamtes etwa 300 schwere Unfälle, an denen Gefahrguttransporte beteiligt waren. Allein 2009 wurden 1 372 Unfälle mit wassergefährdenden Stoffen registriert, wobei insgesamt 376 000 l wassergefährdende Stoffe freigesetzt wurden. KW - Gefahrgut KW - RFID KW - BAM Datenbank Gefahrgut KW - Monitoring KW - Ladungsssicherung PY - 2012 UR - http://www.technischesicherheit.de/ts/currentarticle.php?data[article_id]=67080 SN - 2191-0073 VL - 2 IS - 5 SP - 2 EP - 4 PB - Springer-VDI-Verl. CY - Düsseldorf AN - OPUS4-25904 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Hahn, Oliver T1 - High-Tech Analyses for the investigation of Cultural Assets T2 - BEYOND GALILEOS "O"; Max-Planck Institut for the History of Science CY - Berlin, Germany DA - 2012-03-19 PY - 2012 AN - OPUS4-25905 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Michalak, P. P. A1 - Renno, A. D. A1 - Munnik, F. A1 - Radtke, Martin A1 - Buzanich, Günter A1 - Reinholz, Uwe A1 - Merchel, S. T1 - Three natural minerals - sanidine, pyrite and columbite - as potential geologic reference materials. Characterization of chemical homogeneity at a micrometer scale. T2 - European Mineralogical Conference 2012 CY - Frankfurt am Main, Germany DA - 2012-09-02 PY - 2012 AN - OPUS4-25907 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Berger, Wolfgang A1 - Kalbe, Ute A1 - Krüger, Oliver A1 - Hennecke, D. T1 - Stand der Entwicklung von Elutionsverfahren für organische Stoffe T2 - Gefährdungsabschätzung Boden-Gewässer CY - Duisburg, Germany DA - 2012-05-22 PY - 2012 AN - OPUS4-25908 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Pfeil, Norbert T1 - IGUS - 50 years of both progress and continuity T2 - IGUS 50th Anniversary Commemorative Day CY - Berlin, Germany DA - 2012-05-09 PY - 2012 AN - OPUS4-25909 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Krüger, Oliver A1 - Simon, Franz-Georg ED - Stegmann, R. ED - Rettenberger, G. ED - Kuchta, K. ED - Fricke, K. ED - Heyer, K.-U. T1 - Aufschluss, Trennung und Rückgewinnung von ressourcen-relevanten Metallen aus Rückständen thermischer Prozesse T2 - Deponietechnik 2012 - 8. Hamburger Abfallwirtschaftstage CY - Hamburg, Deutschland DA - 2012-01-31 KW - Ressourcen KW - Rostasche KW - Ersatzbaustoff PY - 2012 SN - 978-3-9812867-6-2 N1 - Serientitel: Hamburger Berichte – Series title: Hamburger Berichte VL - 37 SP - 177 EP - 186 PB - Abfall aktuell CY - Stuttgart AN - OPUS4-25880 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Schlegel, Moritz-Caspar A1 - Wenzel, Klaus-Jürgen A1 - Sarfraz, Adnan A1 - Panne, Ulrich A1 - Emmerling, Franziska T1 - A wall-free climate unit for acoustic levitators N2 - Acoustic levitation represents the physical background of trapping a sample in a standing acoustic wave with no contact to the wave generating device. For the last three decades, sample holders based on this effect have been commonly used for contact free handling of samples coupled with a number of analytical techniques. In this study, a wall-free climate unit is presented, which allows the control of the environmental conditions of suspended samples. The insulation is based on a continuous cold/hot gas flow around the sample and thus does not require any additional isolation material. This provides a direct access to the levitated sample and circumvents any influence of the climate unit material to the running analyses. KW - Acoustic levition PY - 2012 U6 - https://doi.org/10.1063/1.4705968 SN - 0034-6748 SN - 1089-7623 VL - 83 IS - 5 SP - 055101-1 - 055101-3 PB - American Institute of Physics CY - Melville, NY AN - OPUS4-25881 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Szczerba, Wojciech A1 - Riesemeier, Heinrich A1 - Radtke, Martin A1 - Reinholz, Uwe A1 - Thünemann, Andreas T1 - Combined small angle x-ray scattering and x-ray absorption spectroscopy studies of electrochrome metallopolyelectrolytes T2 - 11th International School and Symposium on Synchrotron Radiation in Natural Science CY - Kraków, Poland DA - 2012-05-20 PY - 2012 AN - OPUS4-25882 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Schmigalla, S. A1 - Heyn, Andreas T1 - Elektrochemische Prüfverfahren zur Untersuchung des Einflusses von Fügeparametern auf die Lochkorrosionsbeständigkeit hochlegierter CrNiMo-Stähle und von NiCrMo-Legierungen T2 - 32. Assistentenseminar Füge- und Schweißtechnik CY - Simmerath-Erkensruhr, Deutschland DA - 2011-09-15 KW - Schweißen KW - Lochkorrosion KW - Korrosionsprüfung KW - Hochlegierte Stähle KW - Prüfverfahren KW - Elektrochemie PY - 2012 SN - 978-3-87155-298-4 N1 - Serientitel: DVS-Berichte – Series title: DVS-Berichte VL - 284 SP - 21 EP - 28 PB - DVS Media GmbH AN - OPUS4-25883 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Thiermann, Raphael A1 - Mueller, W. A1 - Montesinos-Castellanos, A. A1 - Metzke, D. A1 - Löb, P. A1 - Hessel, V. A1 - Maskos, Michael T1 - Size controlled polymersomes by continous self-assembly in micromixers N2 - The formation of vesicles based on the self-assembly of amphiphilic poly(butadiene)-b-poly(ethylene oxide) (PB130-b-PEO66) block copolymer in water has been studied using THF as co-solvent. To obtain a highly controlled mixing process for the polymer/THF- and the water-phase, we employed micro mixers with different mixing geometries. The high impact of this preparation method on the self-assembling process was verified by TEM and DLS characterization of the obtained structures. Spherical micelles, vesicles and worm-like micelles were found depending on the parameters of mixing. By additional parameter adjustment in the vesicle regime, the size of the assembled vesicles was controlled between 45 and 100 nm. This demonstrates the continuous preparation of narrowly distributed vesicle structures with controlled sizes. KW - Vesicles KW - Polymersomes KW - Micromixers PY - 2012 U6 - https://doi.org/10.1016/j.polymer.2012.03.058 SN - 0032-3861 SN - 1873-2291 VL - 53 IS - 11 SP - 2205 EP - 2210 PB - Springer CY - Berlin AN - OPUS4-25884 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Negendank, Detlef A1 - Lohse, Volkmar T1 - Stand der Normung zu Gaswarngeräten für den Einsatz im industriellen Bereich T2 - Fachtagung NAMUR "Analysenmesstechnik", MSA Auer CY - Berlin, Germany DA - 2012-05-23 PY - 2012 AN - OPUS4-25885 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Recknagel, Christoph T1 - Potential of dynamic-mechanical analysis toward a complementary material and system testing approach for structural glazing N2 - Dynamic-mechanical material analysis as a basis for a general performance exploration complemented by system testing under superimposed climatic and mechanical loading seems to be a promising interdependent test approach addressing the performance behavior of construction sealants under more realistic conditions. With this contribution an attempt is made to adapt dynamic-mechanical material analysis, which has been already successfully validated for different construction types of expansion joint systems in road and bridge engineering, to the field of construction sealants for building façades. Test results from dynamic-mechanical material analysis characterizing the temperature-dependent, deformation-dependent, and frequency-dependent behavior of structural sealant materials are presented and exemplarily discussed for three different sealant products. An attempt is made to address unknown material characteristics in the multi-dimensional loading matrix representing practical use conditions. Furthermore, the applicability of this test approach and its various complex test modes for the exploration of technological performance and especially estimation of fatigue behavior is verified in several examples. Based on this fundamental material exploration, it is planned to complement the dynamic-mechanical assessment methodology by means of system tests on a section of a structural glazing system subjected to a simplified but superimposed loading function. The technical fundamentals and the procedure proposed to develop an adequate system test mode are introduced. The motivation for these investigations is to identify the actual mechanical system behavior under load combinations and for specimens that both closer resemble reality. The objective is to achieve a consistent and interdependent test program complementary to the existing methodology. Finally, the study is meant to initiate further progress toward a performance-related methodology which considers the design, specification, material, and system selection. KW - Civil engineering and buidling materials PY - 2012 UR - http://www.astm.org/DIGITAL_LIBRARY/JOURNALS/JAI/PAGES/JAI104124.htm U6 - https://doi.org/10.1520/JAI104124 SN - 1546-962X VL - 9 IS - 4 SP - 1 EP - 17(?) PB - American Society for Testing and Materials CY - West Conshohocken, Pa. AN - OPUS4-25887 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Avilov, Vjaceslav A1 - Gumenyuk, Andrey A1 - Lammers, Marco A1 - Rethmeier, Michael T1 - PA position full penetration high power laser beam welding of up to 30 mm thick AlMg3 plates using electromagnetic weld pool support N2 - Full penetration 15 kW Yb fibre laser butt welding of thick AlMg3 (AW 5754) plates was performed in PA position. A contactless inductive electromagnetic weld pool support system was used to prevent gravity dropout of the melt. The welding speed needed to achieve 20 mm penetration was ~0·5 m min-1. An ac power supply of ~244 W at 460 Hz was necessary to completely suppress gravity dropout of the melt and eliminate sagging of the weld pool root side surface. The oscillating magnetic field can suppress the Marangoni convection in the lower part of the weld pool. The system was also successfully used in the full penetration welding of 30 mm thick AlMg3 plates. KW - High power laser beam welding KW - Electromagnetic weld pool support KW - Full penetration PY - 2012 U6 - https://doi.org/10.1179/1362171811Y.0000000085 SN - 1362-1718 SN - 1743-2936 VL - 17 IS - 2 SP - 128 EP - 133 PB - Maney CY - London AN - OPUS4-25888 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Riedel, Juliane A1 - Köppen, Robert A1 - Proske, Matthias A1 - Koch, Matthias T1 - cis-trans isomerism of zearalenone T2 - 34. Mycotoxin-Workshop CY - Braunschweig, Germany DA - 2012-05-14 PY - 2012 AN - OPUS4-25889 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Feistkorn, Sascha T1 - Gütebewertung qualitativer Prüfaufgaben in der ZfPBau am Beispiel des Impulsradars T2 - Fachtagung Bauwerksdiagnose 2012, Praktische Anwendungen Zerstörungsfreier Prüfungen und Zukunftsaufgaben CY - Berlin, Germany DA - 2012-02-23 PY - 2012 AN - OPUS4-25860 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Giesen, Charlotte A1 - Müller, Larissa A1 - Mairinger, T. A1 - Panne, Ulrich A1 - Jakubowski, Norbert T1 - Immunohistochemistry and Histopathology by LA-ICP-MS T2 - ICP-MS Anwendertreffen 2012 CY - Berlin, Germany DA - 2012-02-27 PY - 2012 N1 - Geburtsname von Müller, Larissa: Wäntig, L. - Birth name of Müller, Larissa: Wäntig, L. AN - OPUS4-25861 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Giesen, Charlotte A1 - Müller, Larissa A1 - Mairinger, T. A1 - Panne, Ulrich A1 - Jakubowski, Norbert T1 - Histopathological Imaging by LA-ICP-MS T2 - Winter Conference on Plasma Spectrochemistry 2012 CY - Tucson, AZ, USA DA - 2012-01-09 PY - 2012 N1 - Geburtsname von Müller, Larissa: Wäntig, L. - Birth name of Müller, Larissa: Wäntig, L. AN - OPUS4-25862 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Schlick-Hasper, Eva T1 - Schutzziel Dichtheit für Verpackungen zur Beförderung gefährlicher Güter T2 - 6. Fachseminar Dichtheitsprüfung und Lecksuche der DGZfP CY - Dortmund, Germany DA - 2012-03-06 PY - 2012 AN - OPUS4-25863 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Menrad, Andreas A1 - Goedecke, Thomas T1 - Experiment und Simulation der Verformung von Kunststoffhohlkörpern unter konstantem Druck nach der Einwirkung von Chemikalien T2 - Polimerwissenschaftliches Seminar - TU Berlin CY - Berlin, Germany DA - 2012-04-25 PY - 2012 AN - OPUS4-25864 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Balke, Christian T1 - Die Brandprüfstände der BAM T2 - 3. RAM-Behältersicherheitstage CY - Berlin-Horstwalde, Germany DA - 2012-03-22 PY - 2012 AN - OPUS4-25866 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Schröder, Volkmar T1 - Explosionsschutz in der BAM T2 - R. Stahl Expertenforum Explosionsschutz 2012 CY - Berlin, Germany DA - 2012-05-09 PY - 2012 AN - OPUS4-25867 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Herbst, Tristan A1 - Rübner, Katrin A1 - Meng, Birgit T1 - Integrated and holistic suitability assessment of recycling options for masonry rubble N2 - Behandelt den Bausektor und die Verarbeitsungsqualität T2 - European Geosciences Union (EGU) General Assembly 2012 CY - Vienna, Austria DA - 22.04.2012 PY - 2012 AN - OPUS4-25868 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Kühn, Julius A1 - Wasserroth, S. A1 - Wirth, Thomas A1 - Linke, S. A1 - Moritz, W. A1 - Unger, Wolfgang T1 - Hight-throughtput surface analysis of catalyst libraries based on ternary Pd thin film alloys T2 - PHI European Users Meeting 2012 CY - Eibelstadt, Germany DA - 2012-04-18 PY - 2012 AN - OPUS4-25869 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Pfeil, Norbert T1 - Tolerierbare Restrisiken oder unzulässiges Schadenspotential - von der Probabilistik zurück zur Deterministik? T2 - Wangerooger Sicherheitstage 2012 - Katastrophale Schadensereignisse, Dennoch- und exeptionelle Störfälle CY - Wangerooge, Germany DA - 2012-04-23 PY - 2012 AN - OPUS4-25910 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Pfeil, Norbert T1 - Process Safety Competence - European Strength degerading to Weakness? T2 - IGUS 50th Anniversary Commemorative Day; EOS/EPP Joint Meeting CY - Berlin, Germany DA - 2012-05-09 PY - 2012 AN - OPUS4-25911 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Woydt, Mathias A1 - Merryweather, St. A1 - Zweifel, D. T1 - DOW PAG engine oil - Fuel economy through engine oils based on polyalkylene glycols T2 - 3. Int. Exhaust Emissions Symposium and Celebrations to mark BOSMAL's 40th anniversary CY - Bielsko-Biala, Poland DA - 2012-05-24 PY - 2012 AN - OPUS4-25912 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Szczerba, Wojciech A1 - Riesemeier, Heinrich A1 - Reinholz, Uwe A1 - Radtke, Martin A1 - Thünemann, Andreas A1 - Kaupner, A. A1 - Giordano, C. T1 - Local structure of iron carbide nanoparticles T2 - 11th International School and Symposium on Synchrotron Radiation in Natural Science CY - Kraków, Poland DA - 2012-05-20 PY - 2012 AN - OPUS4-25913 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Szczerba, Wojciech A1 - Kaiser, J. A1 - Riesemeier, Heinrich A1 - Reinholz, Uwe A1 - Radtke, Martin A1 - Yu, L. A1 - Ballauff, M. A1 - Thünemann, Andreas T1 - On the local structure of catalytic Au/Pd nanoparticles stabilized on spherical polyelectrolyte brushes T2 - 11th International School and Symposium on Synchrotron Radiation in Natural Science CY - Kraków, Poland DA - 2012-05-20 PY - 2012 AN - OPUS4-25914 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Krüger, Oliver A1 - Adam, Christian T1 - Phospherous Recovery from Sewage Sludge Ashes T2 - Symposium on Urban Mining-SUM 2012 CY - Bergamo, Italy DA - 2012-05-21 PY - 2012 AN - OPUS4-25915 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Bertin, Annabelle A1 - Garchow, Tina A1 - Bleul, Regina A1 - Pichon, B. A1 - Hartmann, J. T1 - Efficient one-pot synthesis of polymer-coated USPIOs for image-guided nanoparticle-mediated cancer gene therapy T2 - 9th International Conference on the Scientific and Clinical Applications of Magnetic Carriers CY - Minneapolis, MN, USA DA - 2012-05-22 PY - 2012 AN - OPUS4-25916 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Bäßler, Ralph A1 - Yevtushenko, Oleksandra A1 - Carrillo Salgado, Irene T1 - Corrosion behavior of highly alloyed steels in artificial saline aquifer fluids containing carbon dioxide T2 - Corrosion 2012 CY - Lviv, Ukraine DA - 2012-06-04 PY - 2012 AN - OPUS4-25917 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Seuthe, T. A1 - Höfner, M. A1 - Reinhardt, F. A1 - Tsai, W.J. A1 - Bonse, Jörn A1 - Eberstein, M. A1 - Eichler, H.J. A1 - Grehn, M. T1 - Femtosecond laser-induced modification of potassium-magnesium silicate glasses: An analysis of structural changes by near edge x-ray absorption spectroscopy N2 - The effects of femtosecond laser pulse irradiation on the glass structure of alkaline silicate glasses were investigated by x-ray absorption near edge structure spectroscopy using the beamline of the Physikalisch-Technische Bundesanstalt at the electron synchrotron BESSY II in Berlin (Germany) by analyzing the magnesium Κ-edge absorption peak for different laser fluences. The application of fluences above the material modification threshold (2.1 J/cm²) leads to a characteristic shift of ~1.0 eV in the Κ-edge revealing a reduced (~3%) mean magnesium bond length to the ligated oxygen ions (Mg-O) along with a reduced average coordination number of the Mg ions. KW - Glass KW - Glass structure KW - Laser beam effects KW - Magnesium compounds KW - Potassium compounds KW - XANES PY - 2012 U6 - https://doi.org/10.1063/1.4723718 SN - 0003-6951 SN - 1077-3118 VL - 100 IS - 22 SP - 224101-1 EP - 224101-3 PB - American Institute of Physics CY - Melville, NY AN - OPUS4-25918 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Ramge, Peter A1 - Kühne, Hans-Carsten T1 - Rheologische Eigenschaften von Instandsetzungsmörteln und Steinersatzmassen - Messungen mit dem Würpelgerät / Rheological Properties of Repair Mortars - Measurements with the Wuerpel-Device T2 - 21. Workshop und Kolloquium "Rheologische Messungen an Baustoffen" CY - Regensburg, Germany DA - 2012-02-29 PY - 2012 AN - OPUS4-25941 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Weise, Frank A1 - Voland, Katja A1 - Pirskawetz, Stephan A1 - Meinel, Dietmar T1 - Innovative Measurement Techniques for Characterising Internal Damage Processes in Concrete due to ASR T2 - 14th International Conference on Alkali-Aggregate Reaction CY - Austin, TX, USA DA - 2012-05-20 PY - 2012 AN - OPUS4-25942 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Reinholz, Uwe A1 - Buzanich, Günter A1 - Emmerling, Franziska A1 - Gnutzmann, Tanja A1 - Lingott, Jana A1 - Radtke, Martin A1 - Rolf, Simone A1 - Schlegel, Moritz-Caspar T1 - Facettenreiche Forschung an der BAMline T2 - Lange Nacht der Wissenschaften 2012 CY - Berlin, Germany DA - 2012-06-02 PY - 2012 AN - OPUS4-25943 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Müller, Larissa A1 - Jakubowski, Norbert A1 - Giesen, Charlotte A1 - Hösl, Simone A1 - Techritz, Sandra A1 - Scheler, Ch. A1 - Roos, P. H. A1 - Mairinger, T. T1 - Development and application of new metal-based diagnosis methods T2 - "Clinical Immunology & Hot Technologies" club; Deutsches Rheuma-Forschuungszentrum CY - Berlin, Germany DA - 2012-05-22 PY - 2012 N1 - Geburtsname von Müller, Larissa: Wäntig, L. - Birth name of Müller, Larissa: Wäntig, L. N1 - Geburtsname von Hösl, Simone: Hardt, S. - Birth name of Hösl, Simone: Hardt, S. AN - OPUS4-25944 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Müller, Larissa A1 - Jakubowski, Norbert A1 - Hösl, Simone A1 - Roos, P. H. A1 - Scheler, Ch. T1 - Development of multiplex immunoassays for protein detection by LA-ICP-MS T2 - Anwendertreffen Plasmaspektrometrie 2012 CY - Berlin, Germany DA - 2012-02-27 PY - 2012 N1 - Geburtsname von Müller, Larissa: Wäntig, L. - Birth name of Müller, Larissa: Wäntig, L. N1 - Geburtsname von Hösl, Simone: Hardt, S. - Birth name of Hösl, Simone: Hardt, S. AN - OPUS4-25945 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Heinrich, Hans-Joachim A1 - Bremser, Wolfram T1 - Einsatz der direkten Feststoff-Graphitrohrofen-AAS bei der Bestimmung von Elementspuren in Graphitpulvern T2 - 4. Anwenderseminar direkte Feststofftechniken CY - Berlin, Germany DA - 2012-05-10 PY - 2012 AN - OPUS4-25946 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Vogl, Jochen T1 - Key Comparison on isotope ratio determinations - K98/P134 Pb isotope ratios T2 - CCQM, IAWG Meeting CY - Paris, France DA - 2012-04-16 PY - 2012 AN - OPUS4-25947 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Balski, Matthias A1 - Kipphardt, Heinrich A1 - Meyer, S. A1 - Jakubowski, Norbert A1 - Panne, Ulrich T1 - Plasmatechniken als vielseitige Analysenmethoden in der Solarindustrie T2 - Anwendertreffen Plasmaspektrometrie 2012 CY - Berlin, Germany DA - 2012-02-27 PY - 2012 AN - OPUS4-25949 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Stark, Wolfgang A1 - Jaunich, Matthias A1 - Bohmeyer, W. A1 - Lange, K. T1 - Investigation of the crosslinking behaviour of ehtylene vinyl acetate (EVA) for solar cell encapsulation by rheology and ultrasound N2 - EVA is a widely used material for the encapsulation of photovoltaic modules. It melts at elevated temperatures, and seals the module before it is crosslinked at temperatures above 130 °C by a peroxide-initiated crosslinking reaction. EVA has good optical properties necessary for application in solar modules. For process optimization and quality management, a method for the quick and reliable characterization of EVA crosslinking behaviour is of great value. Here, the practicability of ultrasound for online crosslinking monitoring is demonstrated. A sound velocity increase of about 8 m/s during the crosslinking reaction is found. The ultrasound results are compared with rheometer measurements performed with a curemeter typically used for the investigation of rubber crosslinking. KW - Ethylene vinyl acetate KW - EVA KW - Crosslinking KW - Ultrasound KW - Rheology KW - Curemeter KW - DSC PY - 2012 U6 - https://doi.org/10.1016/j.polymertesting.2012.07.004 SN - 0142-9418 VL - 31 IS - 7 SP - 904 EP - 908 PB - Elsevier Science CY - Amsterdam [u.a.] AN - OPUS4-26291 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Wawrzyn, Eliza A1 - Schartel, Bernhard A1 - Ciesielski, M. A1 - Kretzschmar, B. A1 - Braun, Ulrike A1 - Döring, M. T1 - Are novel aryl phosphates competitors for bisphenol A bis(diphenyl phosphate) in halogen-free flame-retarded polycarbonate/acrylonitrile-butadiene-styrene blends? N2 - The reactivity of the flame retardant and its decomposition temperature control the condensed-phase action in bisphenol A polycarbonate/acrylonitrile–butadiene–styrene/polytetrafluoroethylene (PC/ABSPTFE) blends. Thus, to increase charring in the condensed phase of PC/ABSPTFE + aryl phosphate, two halogen-free flame retardants were synthesized: 3,3,5-trimethylcyclohexylbisphenol bis(diphenyl phosphate) (TMC-BDP) and bisphenol A bis(diethyl phosphate) (BEP). Their performance is compared to bisphenol A bis(diphenyl phosphate) (BDP) in PC/ABSPTFE blend. The comprehensive study was carried out using thermogravimetry (TG); TG coupled with Fourier transform infrared spectrometer (TG-FTIR); the Underwriters Laboratory burning chamber (UL 94); limiting oxygen index (LOI); cone calorimeter at different irradiations; tensile, bending and heat distortion temperature tests; as well as rheological studies and differential scanning calorimeter (DSC). With respect to pyrolysis, TMC-BDP works as well as BDP in the PC/ABSPTFE blend by enhancing the cross-linking of PC, whereas BEP shows worse performance because it prefers cross-linking with itself rather than with PC. As to its fire behavior, PC/ABSPTFE + TMC-BDP presents results very similar to PC/ABSPTFE + BDP; the blend PC/ABSPTFE + BEP shows lower flame inhibition and higher total heat evolved (THE). The UL 94 for the materials with TMC-BDP and BDP improved from HB to V0 for specimens of 3.2 mm thickness compared to PC/ABSPTFE and PC/ABSPTFE + BEP; the LOI increased from around 24% up to around 28%, respectively. BEP works as the strongest plasticizer in PC/ABSPTFE, whereas the blends with TMC-BDP and BDP present the same rheological properties. PC/ABSPTFE + TMC-BDP exhibits the best mechanical properties among all flame-retarded blends. KW - Polycarbonate (PC) KW - Aryl phosphate KW - Flame retardancy KW - Pyrolysis KW - PC/ABS PY - 2012 U6 - https://doi.org/10.1016/j.eurpolymj.2012.06.015 SN - 0014-3057 SN - 1873-1945 VL - 48 IS - 9 SP - 1561 EP - 1574 PB - Elsevier CY - Oxford AN - OPUS4-26292 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Beyer, M. A1 - Bothe, H. A1 - Schendler, Thomas T1 - Physikalisch-chemische Sicherheitstechnik und Explosionsschutz in PTB und BAM KW - Explosionsschutz KW - Politikberatung KW - Wissenstransfer PY - 2012 SN - 0176-2419 VL - 2012 SP - 18 EP - 22 PB - Stahl CY - Künzelsau AN - OPUS4-26293 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Eisenkolb, Tino A1 - Mehdianpour, Milad T1 - Bewertung historischer Brückenlager - Das Kontaktproblem - Teil 2 N2 - Der vorliegende Beitrag thematisiert die Spannungsberechnung im Kontaktbereich historischer Brückenlager. Speziell der Kontakt zwischen Kugelzapfen und Lagerpfanne steht im Fokus der Ausführungen. Es wird gezeigt, dass die auf Grundlage der Hertz'schen Theorie an der Ersatzgeometrie Kugel–Ebene berechneten Spannungszustände nennenswerte Fehler gegenüber den numerisch an der tatsächlichen Geometrie Kugelzapfen-Lagerpfanne ermittelten Spannungen aufweisen können. Nach Darstellung der Ursachen und Einflussparameter dieser Fehler wird eine Methodik aufgezeigt, diese Fehler signifikant zu korrigieren. ----------------------------------------------------------------------------------------------------------------- This paper addresses the calculation of stresses within the contact zone of historical bridge bearings. Special attention is paid to the contact between ball stud and bearing cup. It will be shown that the stresses calculated according to the Hertzian theory at the idealised analogous geometry of a ball on a plate present considerable differences to the stresses numerically calculated at the real geometry of a ball stud on a bearing cup. Afterwards the causes and influencing factors of these failures are discussed, and a method to improve them significantly is provided. KW - Brückenlager KW - Kontaktproblem KW - Hertzsche Pressung KW - Kontaktspannung KW - Vergleichsspannung KW - Bewertung KW - Historische Lager PY - 2012 U6 - https://doi.org/10.1002/stab.201201576 SN - 0038-9145 SN - 1437-1049 SN - 0932-6375 VL - 81 IS - 7 SP - 510 EP - 518 PB - Ernst CY - Berlin AN - OPUS4-26294 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Weller, Michael G. T1 - A unifying review of bioassay-guided fractionation, effect-directed analysis and related techniques N2 - The success of modern methods in analytical chemistry sometimes obscures the problem that the ever increasing amount of analytical data does not necessarily give more insight of practical relevance. As alternative approaches, toxicity- and bioactivity-based assays can deliver valuable information about biological effects of complex materials in humans, other species or even ecosystems. However, the observed effects often cannot be clearly assigned to specific chemical compounds. In these cases, the establishment of an unambiguous cause-effect relationship is not possible. Effect-directed analysis tries to interconnect instrumental analytical techniques with a biological/biochemical entity, which identifies or isolates substances of biological relevance. Successful application has been demonstrated in many fields, either as proof-of-principle studies or even for complex samples. This review discusses the different approaches, advantages and limitations and finally shows some practical examples. The broad emergence of effect-directed analytical concepts might lead to a true paradigm shift in analytical chemistry, away from ever growing lists of chemical compounds. The connection of biological effects with the identification and quantification of molecular entities leads to relevant answers to many real life questions. KW - Toxicity KW - Drug discovery KW - Natural products KW - Environmental analysis KW - Lead identification PY - 2012 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:b43-262960 SN - 1424-8220 VL - 12 IS - 7 SP - 9181 EP - 9209 PB - MDPI CY - Basel AN - OPUS4-26296 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Mathejczyk, J.E. A1 - Pauli, Jutta A1 - Dullin, C. A1 - Resch-Genger, Ute A1 - Alves, F. A1 - Napp, J. T1 - High-sensitivity detection of breast tumors in vivo by use of a pH-sensitive near-infrared flurorescence probe N2 - We investigated the potential of the pH-sensitive dye, CypHer5E, conjugated to Herceptin (pH-Her) for the sensitive detection of breast tumors in mice using noninvasive time-domain near-infrared fluorescence imaging and different methods of data analysis. First, the fluorescence properties of pH-Her were analyzed as function of pH and/or dye-to-protein ratio, and binding specificity was confirmed in cell-based assays. Subsequently, the performance of pH-Her in nude mice bearing orthotopic HER2-positive (KPL-4) and HER2-negative (MDA-MB-231) breast carcinoma xenografts was compared to that of an always-on fluorescent conjugate Alexa Fluor 647-Herceptin (Alexa-Her). Subtraction of autofluorescence and lifetime (LT)-gated image analyses were performed for background fluorescence suppression. In mice bearing HER2-positive tumors, autofluorescence subtraction together with the selective fluorescence enhancement of pH-Her solely in the tumor's acidic environment provided high contrast-to-noise ratios (CNRs). This led to an improved sensitivity of tumor detection compared to Alexa-Her. In contrast, LT-gated imaging using LTs determined in model systems did not improve tumor-detection sensitivity in vivo for either probe. In conclusion, pH-Her is suitable for sensitive in vivo monitoring of HER2-expressing breast tumors with imaging in the intensity domain and represents a promising tool for detection of weak fluorescent signals deriving from small tumors or metastases. KW - Optical probe KW - pH sensing KW - Cyanine KW - In vivo near-infrared fluorescence imaging KW - Fluorescence lifetime imaging KW - Breast tumor monitoring KW - Herceptin PY - 2012 U6 - https://doi.org/10.1117/1.JBO.17.7.076028 SN - 1083-3668 SN - 1560-2281 VL - 17 IS - 7 SP - 076028-1 - 076028-9 PB - SPIE CY - Bellingham, Wash. AN - OPUS4-26297 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Lorenz, S. A1 - Kannengießer, Thomas A1 - Posch, G. T1 - Suitability of high-alloyed flux-cored wire electrodes for laser-GMA hybrid welding N2 - The object of this research project related to investigations into the qualification of flux-cored wire electrodes for the laser-GMA hybrid welding of high-alloyed steels. Because of its annular metal shell and the powdery filling, this type of wire electrode permits stable, low-spatter metal transfer comparable with that in the spray arc, particularly in the upper range of the attainable deposition rates. In contrast with this, controlled metal transfer during the deposition of solid wire electrodes is achieved using pulsed arc technology. When these filler materials are welded, the properties specific to the material and to the process have a significant influence on the weld metallurgy as well as on the process stability. Tests were carried out on the AISI 403L (X2CrNi1911) high-alloyed base material in order to investigate the transferability of the attainable material properties from GMA welding to laser-GMA hybrid welding. Four wire electrodes were used according to DIN EN 12072 and DIN EN ISO 17633: a T 19 9 L P M 1 rutile fluxcored wire designed specifically for welding in position, a T 19 9 L R M (C) 3 rutile flux-cored wire suitable for welding in the flat position, a T 19 9 L M M 1 metal-powder flux-cored wire as well as a G 19 9 L Si solid wire. KW - Welding KW - Laser GMA hybrid welding PY - 2012 SN - 1612-3433 VL - 11 IS - 3 SP - 181 EP - 187 PB - DVS - German Welding Society CY - Düsseldorf AN - OPUS4-26298 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Girard-Lauriault, Pierre-Luc A1 - Gross, Thomas A1 - Lippitz, Andreas A1 - Unger, Wolfgang T1 - Chemical and elemental depth profiling of very thin organic layers by constant kinetic energy XPS: a new synchrotron XPS analysis strategy N2 - We present a new synchrotron X-ray photoelectron spectroscopy strategy for surface chemical analysis of materials. Our approach is based on the acquisition of photoelectron spectra at constant kinetic energies with the help of a tunable synchrotron X-radiation source. This ensures both constant and tunable information depth for all elements in a very thin organic layer. Many of the problems known to XPS depth profiling using laboratory equipment are thereby avoided. Using our methodology, the 95% information depth, z95%, can be tuned down to about 0.7 nm in organic materials. The upper limit in our study at the HE-SGM monochromator dipole magnet beamline at the synchrotron radiation source BESSY II is about 4.3 nm. Elemental quantification is achieved through relative sensitivity factors (RSF) specific to the measurement conditions, determined either with the help of calculated photoionization cross sections and inelastic mean free paths or experimentally. The potential of the technique is demonstrated for the in-depth analysis of plasma deposited nitrogen-rich organic thin films used in biomedical applications. PY - 2012 U6 - https://doi.org/10.1021/ac300585q SN - 0003-2700 SN - 1520-6882 VL - 84 IS - 14 SP - 5984 EP - 5991 PB - American Chemical Society CY - Washington, DC AN - OPUS4-26299 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Bartscher, M. A1 - Staude, Andreas A1 - Ehrig, Karsten A1 - Ramsey, A. T1 - The influence of data filtering on dimensional measurements with CT N2 - Data processing is an essential part of the evaluation of measurement results, e.g. in X-ray computed tomography (CT). Some of these calculations are denoted as 'filtering'. Filtering is always a trade-off between an enhancement of data quality and a loss of information. The standard reconstruction technique for CT data is t he filtered back-projection. Additionally to the high-pass filter inherent to this technique, a suppression of high-frequency noise is in most cases also necessary. Many different possible filter algorithms are found in the literature. Although their effect on the signal-to-noise ratio and the spatial resolution is well-studied, it is not obvious how the different filters affect the determination of the object's surface in the reconstructed data and, thus, the results of dimensional CT measurements. We compare the results of industrial dimensional CT measurements obtained at the same data set of a calibrated reference standard – a calotte cube – when using different filters and discuss the implications. Filters under investigation are mainly median filters on projections and as well filters during filtered backprojection and filters on the reconstructed volume. T2 - 18th WCNDT - World conference on nondestructive testing CY - Durban, South Africa DA - 2012-04-16 KW - Computed tomography (CT) KW - Dimensional measurement KW - Data filtering KW - Resolution PY - 2012 SN - 978-0-620-52872-6 SP - 1 EP - 13 (Paper 429) AN - OPUS4-26252 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Kraus, Werner A1 - Henning, C. A1 - Takao, S. A1 - Takao, K. A1 - Weiss, S. A1 - Emmerling, Franziska A1 - Scheinost, A.C. A1 - Meyer, M. T1 - Hexanuclear actinide (IV) carboxylates formed by competition between ligation and hydrolysis T2 - The 15th Interantional Conference on X-ray Absorption Fine Structure CY - Beijing, China DA - 2012-07-22 PY - 2012 AN - OPUS4-26254 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Song, X. A1 - Ma, Y. A1 - Wang, C. A1 - Dietrich, Paul A1 - Unger, Wolfgang A1 - Luo, Y. T1 - Effects of protonation, hydrogen bonding, and photodamaging on X-ray spectroscopy of the amine terminal group in aminothiolate monolayers N2 - The amine headgroup, NH2, in aminothiolate monolayers can often generate unexpectedly rich structures in its N K-edge X-ray photoelectron spectra (XPS) and near-edge X-ray absorption fine structure (NEXAFS) spectra that are difficult to assign. We have carried out density functional theory (DFT) calculations to study the XPS and NEXAFS of amine headgroup in four different aminothiolate monolayers, namely, aliphatic 11-aminoundecane-1-thiol (AUDT), aromatic 4-aminobenzenethiol (ABT), araliphatic 4-aminophenylbutane-1-thiol (APBT), and 3-(4''-amino-1,1':4',1''-terphenyl-4-yl)propane-1-thiol (ATPT), with the focus on structure changes caused by protonation, hydrogen bonding, and X-ray damaging. Spectra of all possible saturated and unsaturated species, as well as X-ray damage products, such as imine, nitrile, azo species, and cumulative double bonds, have been thoroughly examined. It is found that extra spectral structures observed in the experimental XPS spectra do not result from protonation but from the formation of a primary ammonium. The X-ray excitation can induce cross-linking between two neighboring molecules to form different complexes that contribute to the π* features in NEXAFS spectra. KW - Surface analysis KW - Spectrum simulation KW - X-ray absorption spectroscopy KW - Self assembling monolayer PY - 2012 U6 - https://doi.org/10.1021/jp302716w SN - 1932-7447 SN - 1089-5639 VL - 116 IS - 23 SP - 12649 EP - 12654 PB - Soc. CY - Washington, DC AN - OPUS4-26255 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Müller, Larissa A1 - Jakubowski, Norbert A1 - Hösl, Simone A1 - Scheler, C. A1 - Roos, P.H. A1 - Linscheid, M.W. T1 - Comparison of different chelates for lanthanide labeling of antibodies and application in a Western blot immunoassay combined with detection by laser ablation (LA-)ICP-MS N2 - We have developed lanthanide labeling strategies for antibodies to adapt conventional biochemical workflows like Western blot immunoassays for detection by laser ablation inductively coupled plasma mass spectrometry (LA-ICP-MS) analysis with a special interest to apply the multi-element capabilities of ICP-MS for the design of multiplexed immunoassays. In this paper the lanthanide labeling of antibodies with MeCAT was investigated and the reaction conditions were optimized for application in a Western blot immunoassay analyzed by LA-ICP-MS. Furthermore, the MeCAT labeling strategy was compared with two other commercially available labeling reagents, MAXPAR™ and SCN-DOTA. As a proof-of-principle experiment chemically induced alterations of cytochrome P450 protein expression were investigated and the suitability of the differentially labeled antibodies for Western blot immunoassays of a complex liver microsomal protein fraction was tested. Limits of detection (LODs) in the lower fmol range were reached in the Western blot application using MeCAT and MAXPAR™ as element labeling reagents, whereas even sub-fmol LODs can be achieved in a dot blot experiment for the pure antibodies. PY - 2012 U6 - https://doi.org/10.1039/c2ja30068k SN - 0267-9477 SN - 1364-5544 N1 - Geburtsname von Müller, Larissa: Wäntig, L. - Birth name of Müller, Larissa: Wäntig, L. N1 - Geburtsname von Hösl, Simone: Hardt, S. - Birth name of Hösl, Simone: Hardt, S. VL - 27 IS - 8 SP - 1311 EP - 1320 PB - Royal Society of Chemistry CY - London AN - OPUS4-26256 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Burkert, Andreas A1 - Lehmann, Jens T1 - Edelstahl Rostfrei - Alternativen zu den Standardausteniten KW - Nichtrostender Stahl KW - Austenit KW - Lean Duplex KW - Ferrit KW - Korrosionsprüfung PY - 2012 VL - 2012 SP - 1 EP - 3 CY - Düsseldorf AN - OPUS4-26259 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Bartholmai, Matthias A1 - Köppe, Enrico A1 - Prager, Jens ED - Boller, C. T1 - Early damage detection of structural defects using guided waves N2 - Limited access to the object of relevance is often an essential problem in testing routines, e.g. for non-destructive testing of industry facilities or components of means of transportation. The presented project is about the development of a non-destructive testing method for application over great distances (up to 100 m). The method is based on directed excitation and measuring of Lamb waves (guided waves). It enables an effective differentiation of structural and defective indications as well as a classification of different defect types. The advantage of guided waves is the ability of propagation over great distances. This offers innovative possibilities for the investigation of large or difficult to access constructions. The testing method can be helpful in a broad variety of applications. It is useable for the characterization of plane or cylindrical, thin-walled surfaces of metal or fiber laminated materials. Particularly the investigation of aircraft wings and other aerospace components as well as the investigation of pipelines are addressed fields of application. T2 - EWSHM'12 - 6th European workshop on structural health monitoring 2012 CY - Dresden, Germany DA - 03.07.2012 KW - Lamb-waves KW - Ultrasound KW - Non-destructive evaluation KW - Early-damage-detection KW - Structural health monitoring PY - 2012 SN - 978-3-940283-41-2 VL - 2 SP - 1471 EP - 1478 CY - Berlin AN - OPUS4-26240 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Eisenacher, Germar A1 - Kuschke, Christian A1 - Schubert, Sven A1 - Neumann, Martin A1 - Sterthaus, Jens A1 - Nitz, Thilo A1 - Wille, Frank T1 - Moisture content of wood - influence on mechanical behavior of wood filled impact limiter and importance for quality surveillance during manufacturing N2 - The moisture content of wood is known to have a significant influence on the wood’s mechanical properties. Using wood as an energy absorber in impact limiter of packages for the transport of radioactive material, it is of particu-lar importance to ensure the moisture content and thus relevant mechanical properties to be in specified limits. The paper surveys the influence of wood moisture content on the mechanical properties of wood. Different measuring methods are discussed with respect to in-situ applicability, accuracy and effort. The results of an experimental ana-lysis of the accuracy of hand-held moisture meters using the electrical resistance method are discussed. Conclu-sions are drawn regarding the measurement of moisture content of wood upon delivery as well as of complete im-pact limiter assemblies. Requirements for quality surveillance during manufacturing of wood filled impact limiter are derived and it is exemplified how to meet them. Construction, manufacturing and inspection of impact limiter encapsulation with regard to leak-tightness are addressed. T2 - RAMTRANSPORT 2012 - 9th International Conference on the Radioactive Materials Transport and Storage CY - London, UK DA - 2012-05-22 KW - Mechanical behavior of wood KW - Moisture content KW - Impact limiter PY - 2012 IS - 4.4 RAM 30 SP - 1 EP - 11 AN - OPUS4-26241 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Eichler, Thorsten A1 - Isecke, Bernd A1 - Wilsch, Gerd T1 - Investigations on the secondary protection mechanisms in cathodic protection applications T2 - Structural Faults and Repair CY - Edinburgh, Scotland DA - 2012-07-02 PY - 2012 AN - OPUS4-26246 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Lehmann, Jens A1 - Burkert, Andreas A1 - Rother, Detlef T1 - Oberfläche oder Legierungsgehalt - was bestimmt die Beständigkeit nichtrostender Stähle? T2 - ISC (International Sales Conference) 2012 CY - Hanover, Germany DA - 2012-06-06 PY - 2012 AN - OPUS4-26247 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Lehmann, Jens A1 - Burkert, Andreas A1 - Rother, Detlef T1 - Oberfläche oder Legierungsgehalt - was bestimmt die Beständigkeit nichtrostender Stähle? T2 - ISC (International Sales Conference) 2012 CY - Hanover, Germany DA - 2012-06-11 PY - 2012 AN - OPUS4-26248 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Lehmann, Jens A1 - Burkert, Andreas A1 - Rother, Detlef T1 - Oberfläche oder Legierungsgehalt - was bestimmt die Beständigkeit nichtrostender Stähle? T2 - ISC (International Sales Conference) 2012 CY - Hanover, Germany DA - 2012-06-25 PY - 2012 AN - OPUS4-26249 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Ecker, Melanie A1 - Pretsch, Thorsten T1 - Freely configurable Functionalization Tool for switchable Information Carriers T2 - 3rd WMRIF Workshop for Young Materials Scientists, World Materials Research Institutes Forum WMRIF CY - Khlong Luang, Thailand DA - 2012-08-28 PY - 2012 AN - OPUS4-26280 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Ecker, Melanie A1 - Pretsch, Thorsten T1 - Freely configurable Functionalization Tool for switchable Information Carriers T2 - 3rd WMRIF Workshop for Young Materials Scientists, World Materials Research Institutes Forum WMRIF CY - Khlong Luang, Thailand DA - 2012-08-28 PY - 2012 AN - OPUS4-26281 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Markötter, H. A1 - Manke, I. A1 - Haußmann, J. A1 - Arlt, Tobias A1 - Klages, M. A1 - Krüger, P. A1 - Hartnig, C. A1 - Scholta, J. A1 - Müller, Bernd R. A1 - Riesemeier, Heinrich A1 - Banhart, J. T1 - Combined synchrotron X-ray radiography and tomography study of water transport in gas diffusion layers N2 - Synchrotron X-ray radiography and tomography investigations of a custom-made polymer electrolyte membrane fuel cell optimised for visualisation purposes are presented. The 3D water distribution and transport pathways in the porous carbon fibre gas diffusion layers (GDLs) were investigated. The authors found that water is not only moving from the GDL into the channel, but can also take the opposite way, that is, from the channel into free pore space of the GDL. Such movement of water into the opposite direction has been subject of speculations but has so far not yet been reported and might bring new insights into the general water transport behaviour, which might give new aspects to the general description of water transport processes and influence modelling assumptions to describe the process taking place in the GDL. KW - Synchrotron radiography KW - Synchrotron tomography KW - Gas diffusion layers KW - Water transport PY - 2012 U6 - https://doi.org/10.1049/mnl.2012.0410 SN - 1750-0443 VL - 7 IS - 7 SP - 689 EP - 692 PB - IET CY - London AN - OPUS4-26282 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Resch-Genger, Ute A1 - DeRose, P.C. T1 - Characterization of photoluminescence measuring systems (IUPAC technical report) N2 - Procedures for the characterization of photoluminescence measuring systems are discussed, focusing on spectrofluorometers and fit-for-purpose methods including suitable standards. The aim here is to increase the awareness for the importance of a reliable instrument characterization and to improve the reliability and comparability of measurements of photoluminescence. KW - Fluorescence intensities KW - Instrument calibration KW - IUPAC Analytical Chemistry Division KW - IUPAC organic and biomolecular chemistry division KW - IUPAC physical and biophysical chemistry division KW - Performance validation KW - Photoluminescence KW - Photoluminescence measuring systems KW - Relative fluorescence quantum yields KW - Fluorescence standard KW - Quality assurance KW - Instrument qualification PY - 2012 U6 - https://doi.org/10.1351/PAC-REP-10-07-07 SN - 0033-4545 SN - 1365-3075 VL - 84 IS - 8 SP - 1815 EP - 1835 PB - Union CY - Research Triangle Park, NC AN - OPUS4-26283 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Schlegel, Moritz-Caspar A1 - Sarfraz, Adnan A1 - Müller, Urs A1 - Panne, Ulrich A1 - Emmerling, Franziska T1 - Erste Sekunden im Leben eines Bauwerks - In-situ-Synchrotron-Röntgenbeugungsuntersuchungen der Zementhydratation mit Millisekunden-Auflösung N2 - Höchst dynamische Hydratationsprozesse in den ersten Sekunden bei der Entstehung eines Bauwerkes lassen sich mithilfe von Synchrotron-Röntgenbeugung mit einer sehr hohen Zeitauflösung nachverfolgen. Der Schwerpunkt lag dabei auf der Beeinflussung der Bildung erster kristalliner Hydratationsprodukte während des Frühstadiums der Zementhydratation. KW - SyXRD KW - High resolution KW - In-situ KW - Colloidal suspension KW - Cement hydration KW - In-situ-Analyse KW - Kolloidale Suspensionen KW - Röntgenbeugung KW - Zementhydratation PY - 2012 U6 - https://doi.org/10.1002/ange.201200993 SN - 0044-8249 SN - 0932-2140 SN - 1521-3757 VL - 124 IS - 20 SP - 5078 EP - 5081 PB - Wiley-VCH CY - Weinheim AN - OPUS4-26284 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Gorelik, T.E. A1 - Sarfraz, Adnan A1 - Kolb, U. A1 - Emmerling, Franziska A1 - Rademann, Klaus T1 - Detecting crystalline nonequilibrium phases on the nanometer scale N2 - The use of Automated electron Diffraction Tomography (ADT) is presented as a novel approach for crystallization studies at the nanometer scale for nonequilibrium phases. Here, ADT was applied to elucidate the structural identity of the recently reported hexagonal morphology of caffeine crystals, which grow only on specific surfaces. Caffeine was crystallized from solution on a specially treated TEM carbon grid. The analysis of ADT data revealed that the lattice parameters of these hexagons match those of the high temperature α-form of caffeine. Furthermore, it was observed that in this hexagonal morphology, the α-form remained stable for a prolonged period of time. The stabilization of hexagons can be interpreted in terms of enhanced interactions with the supporting surfaces. KW - Electron diffraction KW - Polymorphism caffeine KW - ADT PY - 2012 U6 - https://doi.org/10.1021/cg300377j SN - 1528-7483 VL - 12 IS - 6 SP - 3239 EP - 3242 PB - American Chemical Society CY - Washington, DC, USA AN - OPUS4-26285 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Heiden, Sebastian A1 - Batzdorf, Lisa A1 - Wenzel, Klaus-Jürgen A1 - Emmerling, Franziska T1 - Mechanochemical synthesis and structural characterisation of a theophylline-benzoic acid cocrystal (1:1) N2 - The structure of a mechanochemically synthesised cocrystal containing theophylline (TP) and benzoic acid (BA) has been determined from powder X-ray diffraction data. PY - 2012 U6 - https://doi.org/10.1039/c2ce25236h SN - 1466-8033 N1 - Geburtsname von Batzdorf, Lisa: Tröbs, L. - Birth name of Batzdorf, Lisa: Tröbs, L. VL - 14 IS - 16 SP - 5128 EP - 5129 CY - London, UK AN - OPUS4-26286 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Schlegel, Moritz-Caspar A1 - Sarfraz, Adnan A1 - Müller, Urs A1 - Panne, Ulrich A1 - Emmerling, Franziska T1 - First seconds in a building's life - In situ synchrotron X-ray diffraction study of cement hydration on the millisecond timescale N2 - Setting cement: Highly dynamic hydration processes that occur during the first seconds of cement hydration were studied by time-resolved synchrotron X-ray diffraction. Polycarboxylate ether additives were found to influence the formation of the initial crystalline hydration products on a molecular level. KW - Cement hydration KW - Colloidal suspensions KW - In situ analysis KW - X-ray diffraction KW - SyXRD KW - High resolution KW - In-situ PY - 2012 U6 - https://doi.org/10.1002/anie.201200993 SN - 1433-7851 SN - 1521-3773 SN - 0570-0833 VL - 51 IS - 20 SP - 4993 EP - 4996 PB - Wiley-VCH CY - Weinheim AN - OPUS4-26287 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Vogl, Jochen A1 - Rosner, Martin T1 - Production and certification of a unique set of isotope and delta reference materials for Boron isotope determination in geochemical, environmental and industrial materials N2 - Isotopic reference materials are essential to enable reliable and comparable isotope data. In the case of boron only a very limited number of such materials is available, thus preventing adequate quality control of measurement results and validation of analytical procedures. To address this situation a unique set of two boron isotope reference materials (ERM-AE102a and -AE104a) and three offset δ11B reference materials (ERM-AE120, -AE121 and -AE122) were produced and certified. The present article describes the production and certification procedure in detail. The isotopic composition of all the materials was adjusted by mixing boron parent solutions enriched in 10B or 11B with a boron parent solution having a natural isotopic composition under full gravimetric control. All parent solutions were analysed for their boron concentration as well as their boron isotopic composition by thermal ionisation mass spectrometry (TIMS) using isotope dilution as the calibration technique. For all five reference materials the isotopic composition obtained on the basis of the gravimetric data agreed very well with the isotopic composition obtained from different TIMS techniques. Stability and homogeneity studies that were performed showed no significant influence on the isotopic composition or on the related uncertainties. The three reference materials ERM-AE120, ERM-AE121 and ERM-AE122 are the first reference materials with natural δ11B values not equal to 0‰. The certified δ11B values are -20.2‰ for ERM-AE120, 19.9‰ for ERM-AE121 and 39.7‰ for ERM-AE122, each with an expanded uncertainty (k = 2) of 0.6‰. These materials were produced to cover about three-quarters of the known natural boron isotope variation. The 10B enriched isotope reference materials ERM-AE102a and ERM-AE104a were produced for industrial applications utilising 10B for neutron shielding purposes. The certified 10B isotope abundances are 0.29995 for ERM-AE102a and 0.31488 for ERM-AE104a with expanded uncertainties (k = 2) of 0.00027 and 0.00028, respectively. Together with the formerly certified ERM-AE101 and ERM-AE103 a unique set of four isotope reference materials and three offset δ11B reference materials for boron isotope determination are now available from European Reference Materials. KW - Boron isotope variations KW - Delta-scale KW - Stable isotopes KW - Isotope reference materials KW - Delta reference materials KW - Metrology in chemistry KW - Absolute isotope abundance PY - 2012 U6 - https://doi.org/10.1111/j.1751-908X.2011.00136.x SN - 1639-4488 SN - 1751-908X VL - 36 IS - 2 SP - 161 EP - 175 PB - Blackwell CY - Oxford AN - OPUS4-26260 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Lupsea, M.O. A1 - Mathies, Helena A1 - Schoknecht, Ute A1 - Tiruta-Barna, L. A1 - Schiopu, N. T1 - Leaching from new generation treated wood: a chemical approach N2 - Leaching of biocides from construction products is currently a research topic receiving attention from the European regulation authorities (CEN/TC 351). In this paper we have focused on the leaching behaviour of CBA (copper-borateazoles) treated Pinus sylvestris. To better define the chemistry of the leaching phenomena, two leaching tests (a static equilibrium test and a dynamic surface leaching test) have been carried out on untreated and treated wood, which offered more information about how the leaching of biocides interferes with other substances released from the wood structure. Eluates, in liquid and lyophilised form, were further analyzed by analytical methods. Organic (tebuconazole) and inorganic (Cu, B) biocides were quantified and several organic compounds have been identified (e.g. carboxylic acids, phenols, amines, etc.). Also, the total amount of phenols and of carboxylic groups was determined. Results on inorganic compounds are in accordance with previous studies made on treated wood. Furthermore, organic carbon, tebuconazole and other organic compounds' behaviour was extensively investigated. This study aims to complete existing leaching data and to help developing a chemical model for several biocides in wood, including Cu, B and tebuconazole. T2 - 1st International conference on environmental and economic impact on sustainable development, incorporating envrionmental economics, toxikology and brownfields CY - New Forest, UK DA - 2012-07-02 KW - Leaching KW - CBA treated wood KW - Biocide KW - Organic compounds PY - 2012 U6 - https://doi.org/10.2495/EID120461 SN - 1743-3541 SN - 1746-448X VL - 162 IS - Environmental Impact SP - 529 EP - 540 PB - WIT Press CY - Southampton [u.a.] AN - OPUS4-26262 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Fontana, Patrick A1 - Pirskawetz, Stephan A1 - Lura, P. ED - Scarpas, A. ED - et al., T1 - Plastic shrinkage cracking risk of concrete - evaluation of test methods T2 - 7th RILEM International conference on cracking in pavements CY - Delft, The Netherlands DA - 2012-06-20 KW - Concrete KW - Plastic shrinkage cracking KW - Advanced measurement setup KW - Non-destructive testing PY - 2012 SN - 978-94-007-4565-0 SP - 591 EP - 600 AN - OPUS4-26263 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Fahmy, A. A1 - Mix, Renate A1 - Schönhals, Andreas A1 - Friedrich, Jörg Florian T1 - Surface and bulk structure of thin spin coated and plasma-polymerized polystyrene films N2 - Polystyrene (PS) spin coated thin films were modified by O2 and Ar plasma as well as by UV irradiation treatments. The modified PS samples were compared with plasma polymerized and commercial polystyrene. The effects of plasma (O2 and Ar) and UV irradiation treatments on the surface and the bulk properties of the polymer layers were discussed. The surface properties were evaluated by X-ray Photoelectron Spectroscopy and Contact angle measurements and the bulk properties were investigated by FTIR and dielectric relaxation spectroscopy. As a result only one second treatment time was sufficient to modify the surface. However, this study was also dedicated to understand the effect of plasma and plasma irradiation on the deposited layers of plasma polymers. The dielectric measurements showed that the plasma deposited films were not thermally stable and underwent an undesired post-plasma chemical oxidation. KW - Surface and bulk characterization KW - Plasma polymerization KW - Polystyrene KW - Surface modification KW - Thermal stability KW - Plasma polymers PY - 2012 U6 - https://doi.org/10.1007/s11090-012-9372-1 SN - 0272-4324 VL - 32 IS - 4 SP - 767 EP - 780 PB - Plenum Publ. Corp. CY - New York, NY, USA AN - OPUS4-26264 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CHAP A1 - Thünemann, Andreas A1 - Eckelt, J. A1 - Maskos, Michael A1 - Wolf, B. A. ED - Matyjaszewski, K. ED - Möller, M. T1 - Fractionation N2 - The enormous diversity of polymers with respect to molecular weight, molecular architecture, and – in the case of copolymers – also the content and arrangement of dissimilar monomers requires well-targeted methods for the separation of the different species that are contained in a given sample. This chapter presents the most abundant fractionation procedures, which are either based on thermodynamic driving forces (like in the case of liquid–liquid phase separation) or on kinetic effects (as with field-flow fractionation). KW - Field-flow fractionation KW - Polymer science KW - Asymmetrical flow field-flow fractionation (AF-FFF) KW - Baker-Williams fractionation KW - Chemical composition distribution (CCD) KW - Circular asymmetrical flow field-flow eluation (CAFFFE) KW - Continuous polymer fractionation (CPF) KW - Crystallization analysis fractionation (CRYSTAF) KW - Crystallization–dissolution fractionation (CDF) KW - Liquid-liquid phase separation KW - Temperature rising elution fractionation (TREF) KW - Phase distribution chromatography (PDC) PY - 2012 SN - 978-0-444-53349-4 U6 - https://doi.org/10.1016/B978-0-444-53349-4.00022-4 VL - 2 IS - Chapter 2.04 SP - 65 EP - 91 PB - Elsevier CY - Amsterdam AN - OPUS4-26265 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Böhmert, L. A1 - Niemann, B. A1 - Thünemann, Andreas A1 - Lampen, A. T1 - Cytotoxicity of peptide-coated silver nanoparticles on the human intestinal cell line Caco-2 N2 - Silver nanoparticles are used in a wide range of consumer products such as clothing, cosmetics, household goods, articles of daily use and pesticides. Moreover, the use of a nanoscaled silver hydrosol has been requested in the European Union for even nutritional purposes. However, despite the wide applications of silver nanoparticles, there is a lack of information concerning their impact on human health. In order to investigate the eVects of silver nanoparticles on human intestinal cells, we used the Caco-2 cell line and peptide-coated silver nanoparticles with deWned colloidal, structural and interfacial properties. The particles display core diameter of 20 and 40 nm and were coated with the small peptide L-cysteine L-lysine L-lysine. Cell viability and proliferation were measured using Promegas CellTiter-Blue® Cell Viability assay, DAPI staining and impedance measurements. Apoptosis was determined by Annexin-V/7AAD staining and FACS analysis, membrane damage with Promegas LDH assay and reactive oxygen species by dichloroXuorescein assay. Exposure of proliferating Caco-2 cells to silver nanoparticle induced decreasing adherence capacity and cytotoxicity, whereby the formation of reactive oxygen species could be the mode of action. The eVects were dependent on particle size (20, 40 nm), doses (5–100 μg/mL) and time of incubation (4–48 h). Apoptosis or membrane damage was not detected. KW - Oral uptake KW - Intestinal cells KW - Peptide-coated silver nanoparticles KW - Cytotoxicity KW - Nanotechnology KW - Small-angle X-ray scattering KW - SAXS PY - 2012 U6 - https://doi.org/10.1007/s00204-012-0840-4 SN - 0340-5761 SN - 1432-0738 VL - 86 IS - 7 SP - 1107 EP - 1115 PB - Springer CY - Berlin ; Heidelberg [u.a.] AN - OPUS4-26267 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Bettge, Dirk A1 - Klinger, Christian T1 - Axle Fracture of an ICE3 High Speed Train T2 - Fifth Interantional Conference on Engineering Failure Analysis CY - The Hague, Netherlands DA - 2012-07-02 PY - 2012 AN - OPUS4-26268 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Haase, A. A1 - Mantion, Alexandre A1 - Graf, P. A1 - Plendl, J. A1 - Thünemann, Andreas A1 - Meier, W. A1 - Taubert, A. A1 - Luch, A. T1 - A novel type of silver nanoparticles and their advantages in toxicity testing in cell culture systems N2 - Silver nanoparticles (SNPs) are among the most commercialized nanoparticles worldwide. Often SNP are used because of their antibacterial properties. Besides that they possess unique optic and catalytic features, making them highly interesting for the creation of novel and advanced functional materials. Despite its widespread use only little data exist in terms of possible adverse effects of SNP on human health. Conventional synthesis routes usually yield products of varying quality and property. It thus may become puzzling to compare biological data from different studies due to the great variety in sizes, coatings or shapes of the particles applied. Here, we applied a novel synthesis approach to obtain SNP of well-defined colloidal and structural properties. Being stabilized by a covalently linked small peptide, these particles are nicely homogenous, with narrow size distribution, and form monodisperse suspensions in aqueous solutions. We applied these peptide- coated SNP in two different sizes of 20 or 40 nm (Ag20Pep and Ag40Pep) and analyzed responses of THP- 1-derived human macrophages while being exposed against these particles. Gold nanoparticles of similar size and coating (Au20Pep) were used for comparison. The cytotoxicity of particles was assessed by WST-1 and LDH assays, and the uptake into the cells was confirmed via transmission electron microscopy. In summary, our data demonstrate that this novel type of SNP is well suited to serve as model system for nanoparticles to be tested in toxicological studies in vitro. KW - Silver nanoparticles KW - Peptide coating KW - Nanotoxicity PY - 2012 U6 - https://doi.org/10.1007/s00204-012-0836-0 SN - 0340-5761 SN - 1432-0738 VL - 86 IS - 7 SP - 1089 EP - 1098 PB - Springer CY - Berlin ; Heidelberg [u.a.] AN - OPUS4-26269 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Horn, Wolfgang A1 - Wiegner, Katharina A1 - Wilke, Olaf A1 - Kalus, Sabine A1 - Jann, Oliver T1 - Different Possibilities for the Statistical Evaluation of Round Robin Tests for Volatile Organic Compounds in Emission Test Chambers T2 - Healthy Buildings 2012 CY - Brisbane, Australia DA - 2012-07-08 PY - 2012 AN - OPUS4-26230 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Brenneis, Rudolf A1 - Baeck, Burkhard T1 - Esterification of fatty acids using Candida antarctica lipase A in water-abundant systems N2 - The feasibility of using native lipase A from Candida antarctica (CAL-A) to esterify fatty acids with water-insoluble alcohols in the presence of excess water was investigated in stirred-tank reactors. For high reaction rates, a ratio of water:substrates of 0.6–1.4:1 (v/v) was required. CAL-A showed higher substrate selectivity for the esterification of saturated palmitic acid with branched-chain 2-ethyl-1-hexanol than for unsaturated oleic acid with linear alcohol (1-decanol). After 18 h at 70 °C in a 1.5 l bulk stirredtank reactor, an 2-ethyl-1-hexyl palmitic acid ester was obtained near 100 % yield [molar ratio palmitic acid:2-ethyl-1-hexanol ~1:1.25, with 1.11 % (w/w) Novocor ADL (based on palmitic acid weight)]. KW - Candida antarctica lipase A KW - Enzymatic esterification KW - 2-Ethyl-1-hexyl palmitic acid ester KW - Fatty acids KW - Water-abundant system PY - 2012 U6 - https://doi.org/10.1007/s10529-012-0928-1 SN - 0141-5492 SN - 1573-6776 VL - 34 IS - 8 SP - 1459 EP - 1463 PB - Kluwer Academic Publ. CY - Dordrecht [u.a.] AN - OPUS4-26231 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Scholz, Christian A1 - Spaltmann, Dirk A1 - Woydt, Mathias T1 - Höchstbelastbare Wälzkontakte mit geringer Misch-/Grenzreibungszahl KW - Hochzähe Stähle KW - Getriebekomponenten KW - DLC KW - ZrCN KW - Extrembeanspruchung KW - Dünnschichten KW - Polyglykole KW - Additive KW - Slip-rolling KW - High toughness steels KW - High pressure KW - Thin film coatings KW - Polyglycols KW - Additives PY - 2012 SN - 0724-3472 VL - 59 IS - 3 SP - 41 EP - 47 PB - Expert Verlag CY - Renningen AN - OPUS4-26232 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Girard-Lauriault, Pierre-Luc A1 - Illgen, René A1 - Ruiz, J.-C. A1 - Wertheimer, M. R. A1 - Unger, Wolfgang T1 - Surface functionalization of graphite and carbon nanotubes by vacuum-ultraviolet photochemical reactions N2 - Graphite and multiwall carbon nanotube surfaces were functionalized by vacuum-ultraviolet induced photochemistry in NH3 or O2, in order to introduce amino- (NH2) or hydroxyl (OH) functionalities, respectively. Modified surfaces were characterized by X-ray photoelectron spectroscopy (XPS), which showed significant incorporation of nitrogen (N) and oxygen (O) at the materials’ surface. While high-resolution XP spectra did not yield much specific information about the incorporated functional groups, chemical derivatization with 4-trifluoromethyl benzaldehyde and trifluoroacetic anhydride accompanied by XPS enabled quantification of NH2 and OH groups, respectively. Using near edge X-ray absorption fine structure spectroscopy, we assessed the conservation of the aromatic structure following functionalization treatments. KW - Carbon nanotubes KW - Graphite KW - Vacuum ultraviolet photochemistry KW - Surface functionalization KW - Amino groups KW - Hydroxyl KW - Derivatization PY - 2012 U6 - https://doi.org/10.1016/j.apsusc.2012.03.012 SN - 0169-4332 SN - 1873-5584 VL - 258 IS - 22 SP - 8448 EP - 8454 PB - North-Holland CY - Amsterdam AN - OPUS4-26233 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Girard-Lauriault, Pierre-Luc A1 - Dietrich, Paul A1 - Gross, Thomas A1 - Unger, Wolfgang T1 - Is quantitative chemical derivatization XPS of plasma deposited organic coatings a valid analytical procedure? N2 - Functionalized organic layers prepared by plasma processes have complex surface chemistries. The problem of elucidating such chemistries is an extensively studied subject. One of the preponderant methods used to acquire information on specific functional groups is chemical derivatization XPS. In this communication, we focus on rather popular chemical derivatization XPS approaches, for instance, the quantification of amines with 4-trifluoromethyl benzaldehyde and of hydroxyl groups with trifluoroacetic anhydride. Although these procedures have been used for a long period by various laboratories, the use of varying protocols is obvious. Comparison of results is therefore difficult. We discuss steps toward a valid experimental procedure, in particular, the calculation of concentrations, the preparation of test samples, the pitfalls, and the shortcomings. KW - Organic coatings KW - Amine KW - Alcohol KW - Chemical derivatization KW - XPS PY - 2012 U6 - https://doi.org/10.1002/sia.4947 SN - 0142-2421 SN - 1096-9918 VL - 44 IS - 8 SP - 1135 EP - 1140 PB - Wiley CY - Chichester AN - OPUS4-26234 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Shabir Mahr, Muhammad A1 - Hübert, Thomas A1 - Sabel, Martin A1 - Schartel, Bernhard A1 - Bahr, Horst A1 - Militz, H. T1 - Fire retardancy of sol-gel derived titania wood-inorganic composites N2 - Sol–gel technology was applied in tailoring novel wood-made-inorganic composites with improved thermal and fire properties. In practice, composites materials were prepared by impregnating pine sapwood wood with nano-scaled precursor solutions derived from titanium(IV) isopropoxide followed by a thermal curing process. Thermal and fire properties were evaluated by thermal analysis and cone calorimetry, whereas flammability was specified by oxygen index (LOI) and UL 94 test. Peak heat release rates were moderately reduced indicating fire retardance potential in terms of flame spread attributed to the appropriate protection layer action of the titania-based depositions. LOI (oxygen index) values of these composites were increased up to 38 vol.% in comparison to 23 vol.% for untreated wood. The flame retardancy performance depends on the fire scenario and is strongly influenced by wood loading and crackfree deposition of the titania layers inside the composite. PY - 2012 U6 - https://doi.org/10.1007/s10853-012-6628-3 SN - 0022-2461 SN - 1573-4803 VL - 47 IS - 19 SP - 6849 EP - 6861 PB - Springer Science + Business Media B.V. CY - Norwell, Mass. AN - OPUS4-26235 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Konersmann, Rainer T1 - Risiken infolge naturbedingter Gefahrenquellen N2 - In zunehmendem Maße stellen Extremwetterlagen, wie Stürme, Starkregen und Hochwasser für Siedlungsgebiete und Infrastruktur eine ernstzunehmende Gefahr dar. In vielen Fällen kommen diese Wetterkapriolen nicht unvorbereitet. Dank verbesserter und vermehrt eingesetzter Vorwarnsysteme, z .B. Wetterbojen in den Ozeanen und vernetzter Wettersatelliten, sind die Wetterprognosen schneller und genauer geworden. Einige Wetterphänomene entwickeln sich jedoch 'urplötzlich' und haben darum nur eine geringe Vorwarnzeit. Ein solches Wetterphänomen ist z. B. der Tornado. Der folgende Beitrag gibt einen Einblick in diese Problematik. KW - Klimainduzierte Risiken KW - Tornado KW - Lastannahmen PY - 2012 SN - 2191-0073 VL - 2 IS - 7/8 SP - 45 EP - 50 PB - Springer-VDI-Verl. CY - Düsseldorf AN - OPUS4-26236 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Wallstabe, Ronald A1 - Klinger, Christian T1 - Cause of an implant fracture: material- or fabrication failure? N2 - Intramedullary hip screws (IMHSs) are implanted for the fixture of pertrochanteric femoral fractures (thigh bone). The present work investigates the failure of an IMHS implant after the rehabilitation period which required a revision surgery where the upper femur had to be replaced by a hip endoprosthesis. Due to litigation the corresponding failure analysis was conducted at BAM Federal Institute for Materials Research and Testing and is the subject of this article. By order of the customer failure causes due to material and fabrication failures should be particularly investigated. Therefore, thorough fractographic, chemical as well as metallographic investigations were carried out. In order to assess possible fabrication failures selected dimensions of the components were compared with the technical drawings and the surface topography was analysed. The investigation revealed several causes for the fracture of the lag screw which is the implant component intended to fix the position of the femoral head. These are in descending order of relevance: (1) the screw was placed incorrectly and therefore had a smaller bending stiffness, (2) the femoral fracture zone was not stable, i.e., the lag screw 'moved out' of its proper position and (3) the laser marking on the lag screw was relatively large and led to a metallurgical notch at the now, because of the above mentioned points, severely stressed region. A material- or fabrication failure was not the root cause for the fracture of the lag screw. It was mainly due to its incorrect placement during surgery and the instability of the bone fracture. Furthermore, the implant geometry with 130° was not well-suited for the patient's anatomy. A 135°-IMHS might have been biomechanically preferable. Based on the determined failure causes and influences a relative lifetime estimation led to about 10% of the lifetime of a correctly placed 135°-IMHS assuming a sufficiently stable bone fracture zone. KW - Implant fracture KW - Intramedullary hip screw (IMHS) KW - Austenitic steel KW - Laser-marking KW - Implant placement PY - 2012 U6 - https://doi.org/10.1016/j.engfailanal.2012.05.010 SN - 1350-6307 SN - 1873-1961 VL - 25 SP - 261 EP - 270 PB - Elsevier Science Publ. CY - Oxford AN - OPUS4-26238 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Rackwitz, Vanessa A1 - Panne, Ulrich A1 - Hodoroaba, Vasile-Dan T1 - Calculation of X-ray tube spectra by means of photon generation yields and a modified Kramers background for side-window X-ray tubes N2 - Popular X-ray tube models available in the literature, i.e. 'Pella', 'Ebel', and 'Finkelshtein and Pavlova', are systematically evaluated with the focus on the estimation of the associated uncertainties. Also taken in consideration and compared is our recent semi-empirical own approach already employed in our lab. This has been working for the common target elements rhodium, molybdenum and tungsten and was further extended in the present work for the target elements copper, chromium and vanadium. By using a modern scanning electron microscope/energy dispersive spectroscopy (SEM/EDS) system this time, higher performances such as stability of the beam current and especially the better energy resolution of the EDS have enabled the reliable extension of our own X-ray tube spectrum approach into the low-energy range, due to increasing interest. Hence, also the more challenging X-ray lines of copper, chromium and vanadium L-series lying in the energy range below 1–2?keV are included into the model. Such low-energy L-lines or, e.g. M-lines of tungsten, are not treated explicitly by the other existing popular algorithms for the nowadays widely used geometries of side-window tubes, offering a unique virtue to our present, modern approach. With our own model, a measurement uncertainty of the X-ray tube spectra (considering the uncertainties associated with the SEM beam current, the detector acceptance solid angle and efficiency of the spectrometer) within 15% has been estimated. The validation of the approach is demonstrated with metrological measurements with a calibrated SEM/EDS system geometrically configured as a side-window X-ray tube. KW - X-ray tube spectra KW - Side-window X-ray tube KW - Reference-free XRF KW - Photon generation yield KW - Kramers background KW - Calibrated SEM/EDS PY - 2012 U6 - https://doi.org/10.1002/xrs.2391 SN - 0049-8246 VL - 41 IS - 4 SP - 264 EP - 272 PB - Wiley CY - Chichester AN - OPUS4-26239 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Neumann, Martin A1 - Ballheimer, Viktor A1 - Sterthaus, Jens A1 - Schubert, Sven A1 - Eisenacher, Germar A1 - Wille, Frank T1 - Material characterization and modeling within safety analysis of packages for transport of radioactive material T2 - ASME 2012 Pressure vessels & piping division conference CY - Toronto, Ontario, Canada DA - 2012-07-15 PY - 2012 SP - PVP2012-78297, 1-6 PB - American Society of Mechanical Engineers CY - New York AN - OPUS4-26271 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Kricheldorf, H.R. A1 - Weidner, Steffen A1 - Scheliga, F. A1 - Lahcini, M. T1 - Poly(epsilon-caprolactone) by combined ring-opening polymerization and polycondensation N2 - Numerous water-initiated polymerizations of εCL are conducted in bulk with variation of catalyst, reaction time, and temperature. The conversions are determined by 1H NMR and the molar masses by SEC measurements. For polymerizations at 100 °C, Bi triflate and Hf triflate are used as catalysts, whereas at 140 °C, Al triflate, Sn(II) triflate, SnCl2, HfCl4, BiCl3, and LaCl3 are used. In addition to a closed reaction vessel, experiments are also performed with stirring in a vacuum. Under these conditions, the best catalyst (SnCl2) yields 2–3 times higher molar masses and mass spectra indicate a significant higher fraction of cyclic polymers. The results prove that a modification of the procedure may stimulate a polycondesation process without change of catalyst, time, and temperature. KW - Epsilon-Caprolactone KW - Cyclization KW - MALDI-TOF mass spectrometry KW - Polycondensations KW - Ring-opening polymerizations PY - 2012 U6 - https://doi.org/10.1002/macp.201200061 SN - 1022-1352 SN - 1521-3935 VL - 213 IS - 14 SP - 1482 EP - 1488 PB - Wiley-VCH Verl. CY - Weinheim AN - OPUS4-26273 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Menrad, Andreas A1 - Goedecke, Thomas A1 - Gründer, Klaus-Peter A1 - Wagner, M.H. T1 - The Internal Pressure Test in Experiment and Simulation T2 - IAPRI - World Packaging Conference 2012, Cal Poly State University CY - San Luis Obispo, CA, USA DA - 2012-06-18 PY - 2012 AN - OPUS4-26274 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Völz, Uwe A1 - Boehm, Rainer A1 - Heckel, Thomas A1 - Spruch, W. ED - Pombo, J. T1 - Ultrasonic testing of hollow axles with a conical rotation scanner phased array probe N2 - This paper describes the investigations, carried out during the ongoing European Project WOLAXIM. It presents the development of the non-destructive testing system for hollow axle inspection. The phased array probe is designed, the inspection parameters are determined and the required test equipment is planned according to the specifications. As a part of the probe design, a detailed model to calculate the sound field of the conical phased array is developed. With this model the optimal geometric parameters for bore diameters from 30mm up to 70mm are determined. The first design of a conical probe with forty-eight elements is realised. Based on this design a mock-up with ten elements is produced. The first practical tests with the calculated delay laws show high sensitivity for small test flaws and offer good agreement with the modelling results. The effectiveness as well as the sensitivity with a good signal to noise ratio is verified. The parameters for a short inspection time less than five minutes per axle are determined. A raw scanning with 1.5° circumferential and 2mm axial resolution is feasible within two minutes. That is significantly faster than comparable mechanically rotated probe systems. The remaining three minutes are sufficient for the other steps in the inspection process. The required features will be fulfilled by the COMPAS® phased array device. The feasibility of the ultrasonic system is shown. The specification and the theoretical probe design are complete and sufficient knowledge is present that the system will be viable. The results of the modelling and first practical tests show a good agreement with the objectives. The determined probe parameters satisfy the requirements. T2 - 1st International conference on railway technology: research, development and maintenance CY - Las Palmas de Gran Canaria, Spain DA - 2012-04-18 KW - Ultrasonic testing KW - Phased array KW - Rotation scanner KW - Hollow axle KW - Sleeve shaft KW - WOLAXIM PY - 2012 SN - 978-1-905088-52-2 U6 - https://doi.org/10.4203/ccp.98.86 SN - 1759-3433 N1 - Serientitel: Civil-Comp Proceedings – Series title: Civil-Comp Proceedings VL - 98 IS - Paper 86 SP - 1 EP - 10 PB - Civil Comp Press AN - OPUS4-26275 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Schlichting, Joachim A1 - Brauser, Stephan A1 - Pepke, Lutz-Alexander A1 - Maierhofer, Christiane A1 - Rethmeier, Michael A1 - Kreutzbruck, Marc T1 - Thermographic testing of spot welds N2 - Spot welding is one of the most important technologies for joining sheet metal. While there are lot of approaches to non-destructive testing, quality assurance still mainly relies on welding parameter monitoring and destructive testing, leading to significant failure rates. In this paper an approach to spot weld testing using flash thermography is presented. The main focus of attention is on the identification of two typical error classes: stick welds and welds at the splash limit. Besides investigating the principal feasibility of thermography for zinc plated samples the results of a series test of spot welds joining 1 mm thick TRIP steel are shown. Based upon these results a statistical criterion is developed which allows a reliable classification of the named error classes. KW - Thermography KW - Spot welding KW - Automotive industry PY - 2012 U6 - https://doi.org/10.1016/j.ndteint.2012.02.003 SN - 0963-8695 VL - 48 SP - 23 EP - 29 PB - Butterworth-Heinemann CY - Oxford AN - OPUS4-26276 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Ortel, Erik A1 - Fischer, A. A1 - Chuenchom, L. A1 - Polte, Jörg A1 - Emmerling, Franziska A1 - Smarsly, B.M. A1 - Kraehnert, R. T1 - New triblock copolymer templates, PEO-PB-PEO, for the synthesis of titania films with controlles mesopore size, wall thickness, and bimodal porosity N2 - The synthesis and properties of a series of new structure-directing triblock copolymers with PEO-PB-PEO structure (PEO = poly(ethylene oxide) and PB = polybutadiene) and their application as superior pore-templates for the preparation of mesoporous titania coatings are reported. Starting from either TiCl4 or from preformed TiO2 nanocrystalline building blocks, mesoporous crystalline titanium oxide films with a significant degree of mesoscopic ordered pores are derived, and the pore size can be controlled by the molecular mass of the template polymer. Moreover, the triblock copolymers form stable micelles already at very low concentration, i.e., prior to solvent evaporation during the evaporation-induced self-assembly process (EISA). Consequently, the thickness of pore walls can be controlled independently of pore size by changing the polymer-to-precursor ratio. Thus, unprecedented control of wall thickness in the structure of mesoporous oxide coatings is achieved. In addition, the micelle formation of the new template polymers is sufficiently distinct from that of typical commercial PPO-PEO-PPO polymers (Pluronics; PPO = poly(propylene oxide)), so that a combination of both polymers facilitates bimodal porosity via dual micelle templating. KW - Mesoporous materials KW - Titanium oxide films KW - Anatase nanoparticles KW - PEO-PB-PEO KW - Dual templating PY - 2012 U6 - https://doi.org/10.1002/smll.201101520 SN - 1613-6810 SN - 1613-6829 VL - 8 IS - 2 SP - 298 EP - 309 PB - Wiley-VCH Verl. CY - Weinheim AN - OPUS4-26277 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Som, T. A1 - Simo, A. A1 - Fenger, R. A1 - Troppenz, G.V. A1 - Bansen, R. A1 - Pfänder, N. A1 - Emmerling, Franziska A1 - Rappich, J. A1 - Boeck, T. A1 - Rademann, K. T1 - Bismuth hexagons: facile mass synthesis, stability and applications N2 - A unique direct electrodeposition technique involving very high current densities, high voltages and high electrolyte concentrations is applied for highly selective mass synthesis of stable, isolable, surfactant-free, single-crystalline Bi hexagons on a Cu wire at room temperature. A formation mechanism of the hexagons is proposed. The morphology, phase purity, and crystallinity of the material are well characterized by FESEM, AFM, TEM, SAED, EDX, XRD, and Raman spectroscopy. The thermal stability of the material under intense electron beam and intense laser light irradiation is studied. The chemical stability of elemental Bi in nitric acid shows different dissolution rates for different morphologies. This effect enables a second way for the selective fabrication of Bi hexagons. Bi hexagons can be oxidized exclusively to α-Bi2O3 hexagons. The Bi hexagons are found to be promising for thermoelectric applications. They are also catalytically active, inducing the reduction of 4-nitrophenol to 4-aminophenol. This electrodeposition methodology has also been demonstrated to be applicable for synthesis of bismuth-based bimetallic hybrid composites for advanced applications. KW - Bismuth KW - Hexagons KW - Dendrites KW - Single-crystal KW - Thermoelectric applications KW - Catalytic applications PY - 2012 U6 - https://doi.org/10.1002/cphc.201101009 SN - 1439-4235 VL - 13 IS - 8 SP - 2162 EP - 2169 PB - Wiley-VCH CY - Weinheim AN - OPUS4-26278 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Schilder, Constanze A1 - Kohlhoff, Harald A1 - Hofmann, Detlef A1 - Habel, Wolfgang ED - Boller, C. T1 - Structure-integrated fibre-optic strain wave sensor for pile testing and monitoring of reinforced concrete piles T2 - EWSHM'12 - 6th European workshop on structural health monitoring 2012 CY - Dresden, Germany DA - 2012-07-03 PY - 2012 SN - 978-3-940283-41-2 VL - 1 SP - 523 EP - 530 CY - Berlin AN - OPUS4-26279 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Gravenkamp, Hauke A1 - Prager, Jens A1 - Song, C. T1 - Numerical computation of dispersion relations in wave guides T2 - GAMM 2012, 83rd Annual Meeting of the International Association of Applied Mathematics and Mechanics CY - Darmstadt, Germany DA - 2012-03-26 PY - 2012 AN - OPUS4-26220 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Gravenkamp, Hauke A1 - Prager, Jens A1 - Song, C. T1 - Numerische Berechnung der Dispersionseigenschaften von Lambwellen in Platten mit beliebiger Materialzusammensetzung T2 - DAGA 2012. 38. Jahrestagung für Akustik CY - Darmstadt, Germany DA - 2012-03-19 PY - 2012 AN - OPUS4-26221 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Rahman, Mehbub-Ur A1 - Prager, Jens T1 - Modellierung der Lambwellenausbreitung mit Hilfe der Finiten Integrationstechnik (EFIT) T2 - DAGA 2012, 38. Jahrestagung für Akustik CY - Darmstadt, Germany DA - 2012-03-19 PY - 2012 AN - OPUS4-26222 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Dey, Anika A1 - Casperson, Ralf A1 - Pohl, Rainer A1 - Thomas, Hans-Martin A1 - Jaklofsky, U. T1 - Einfluss des Hochgeschwindigkeitsschleifens auf die Wirbelstromprüfung an Schienen T2 - 7. Fachtagung ZfP im Eisenbahnwesen CY - Wittenberge, Germany DA - 2012-03-20 PY - 2012 AN - OPUS4-26223 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Mann, Guido A1 - Jurke, Mathias A1 - Zoheidi, M. A1 - Krüger, Jörg T1 - Influence of mechanical stress on nanosecond laser-induced damage threshold of fused silica N2 - Optical multimode fibers made of fused silica are widely used for transmission of high power laser pulses. Bending of fibers creates mechanical stress inside the material. The bend stress of a fiber can be calculated from bend radius, geometrical fiber parameters and Young's Modulus of the fiber core material and reaches typically values of 220 MPa. A thermo-elastic model of Kusov et al. predicts a quadratic dependence of laser-induced damage threshold fluence with applied stress. In the present study, fiber preform material F300 (Heraeus) was loaded mechanically with pressures up to 220 MPa representing 20% of the pressure resistance of fused silica. Bulk laser-induced damage thresholds (LIDT) were evaluated using a longitudinal multimode Q-switched Nd:YAG laser (1064 nm) at a pulse duration of 12 ns with polarization states parallel and perpendicular to the stress direction. LIDT of fused silica samples of about 700 J/cm2 were found. LIDT did not show a dependence on mechanical pressure and polarization state which is a consequence of the small ratio of maximum applied stress (220 MPa) to Young's Modulus of fused silica (72.5 GPa). KW - Laser-induced damage threshold KW - LIDT KW - Nanosecond laser KW - Fused silica KW - Mechanical stress KW - Optical fiber PY - 2012 U6 - https://doi.org/10.1016/j.apsusc.2012.01.049 SN - 0169-4332 SN - 1873-5584 VL - 258 IS - 23 SP - 9153 EP - 9156 PB - North-Holland CY - Amsterdam AN - OPUS4-26225 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Rosenfeld, A. A1 - Rohloff, M. A1 - Höhm, S. A1 - Krüger, Jörg A1 - Bonse, Jörn T1 - Formation of laser-induced periodic surface structures on fused silica upon multiple parallel polarized double-femtosecond-laser-pulse irradiation sequences N2 - The formation of laser-induced periodic surface structures (LIPSS) upon irradiation of fused silica with multiple irradiation sequences of parallel polarized Ti:sapphire femtosecond laser pulse pairs (160 fs pulse duration, 800 nm central wavelength) was studied experimentally. For that purpose, a Michelson interferometer was used to generate near-equal-energy double-pulse sequences allowing the temporal pulse delay between the parallel-polarized individual fs-laser pulses to be varied between 0 and 40 ps with ~0.2 ps temporal resolution. The surface morphologies of the irradiated surface areas were characterized by means of scanning electron and scanning force microscopy. In the sub-ps delay range a strong decrease of the LIPSS periods and the ablation crater depths with the double-pulse delay was observed indicating the importance of the laser-induced free-electron plasma in the conduction band of the solids for the formation of LIPSS. KW - Laser-induced periodic surface structures (LIPSS) KW - Femtosecond laser ablation KW - Double-pulse experiments KW - Fused silica KW - Michelson interferometer PY - 2012 U6 - https://doi.org/10.1016/j.apsusc.2011.09.076 SN - 0169-4332 SN - 1873-5584 VL - 258 IS - 23 SP - 9233 EP - 9236 PB - North-Holland CY - Amsterdam AN - OPUS4-26226 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Wiegner, Katharina A1 - Horn, Wolfgang A1 - Jann, Oliver A1 - Farke, M. A1 - Hahn, Oliver T1 - Guideline for assessment of emissions from materials for museum equipment T2 - Indoor Air Quality 2012, 10th International Conference Indoor Air Quality in Heritage and Historic Environments "Standards and Guideline" CY - London, England DA - 2012-06-17 PY - 2012 AN - OPUS4-26227 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Spode, Manfred T1 - Arbeitserfahrungen mit der Zulassungsbearbeitung in der BAM T2 - 8. Fachgespräch Druckgeräte, BAM CY - Berlin, Germany DA - 2012-06-18 PY - 2012 AN - OPUS4-26300 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Vöse, Markus A1 - Fedelich, Bernard T1 - Grain boundary cavitation under time-varying normal stresses T2 - 12th International Conference on Creep and Fracture of Engineering Materials and Structures CY - Kyoto, Japan DA - 2012-05-27 PY - 2012 AN - OPUS4-26301 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Hofmann-Böllinghaus, Anja A1 - Dülsen, Steffen T1 - Busbrände - Probleme und mögliche Lösungen T2 - Trends im Brandschutz und innovative Flammschutzmittel bei Kunststoffen, SKZ CY - Würzburg, Germany DA - 2012-05-23 PY - 2012 AN - OPUS4-26302 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Stephan, Ina T1 - Möglichkeiten zur Beurteilung von mikrobiologischen Einflüssen auf Produkte T2 - GUS-Symposium "Produktqualifikation - Wirkungen auf Produkte" CY - Nuremberg, Germany DA - 2012-05-09 PY - 2012 AN - OPUS4-26303 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Lupsea, Maria-Octavia A1 - Schoknecht, Ute A1 - Mathies, Helena A1 - Tiruta-Barna, L. A1 - Schiopu, N. T1 - Leaching from new generation trated wood: a chemical approach T2 - Tagung: "Environmental Impact 2012" CY - New Forest, England DA - 2012-07-02 PY - 2012 AN - OPUS4-26304 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Schoknecht, Ute T1 - Bewertung der Umweltverträglichkeit von biozid ausgerüsteten Materialien T2 - 21. Chemisches Kolloquium "Baumaterialien und Oberflächengewässer CY - Koblenz, Germany DA - 2012-06-19 PY - 2012 AN - OPUS4-26305 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Rabin, Ira A1 - Hahn, Oliver T1 - Dead Sea scrolls exhibitions around the world: reasons for concern N2 - The Dead Sea Scrolls that miraculously survived for over two thousand years suffered considerable damage due to various post-dicovery interventions. Today they are subjected to frequent travelling exhibitions. The current work collates the published information on exhibitions and conservational treatments with the results of the analytic studies of the skin-based material of the scrolls conducted since their discovery. The examination of the properties of the scrolls proves that frequent travel, exhibitons and the associated handling induce collagen deterioration that is covered up by the absence of a proper monitoring program. KW - Dead Sea scrolls KW - Deterioration KW - Collagen KW - Conservation science PY - 2012 U6 - https://doi.org/10.1515/res-2012-0005 SN - 0034-5806 SN - 1865-8431 VL - 33 IS - 2 SP - 101 EP - 121 PB - Saur CY - München AN - OPUS4-26306 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Hodoroaba, Vasile-Dan A1 - Benemann, Sigrid A1 - Motzkus, C. A1 - Macé, T. A1 - Palmas, P. A1 - Vaslin-Reimann, S. T1 - Advanced Analysis of spherical SiO2 Aerosol Nanoparticles with a high-resolution SEM T2 - Microscopy and Microanalysis 2012 CY - Phoenix, AZ, USA DA - 2012-07-29 PY - 2012 AN - OPUS4-26307 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Hodoroaba, Vasile-Dan A1 - Rackwitz, Vanessa T1 - An Attempt of Exploiting the Compton-to-Rayleigh Intensity Ratio for Improved Analysis with µXRF at a SEM T2 - Microscopy and Microanalysis 2012 CY - Phoenix, AZ, USA DA - 2012-07-29 PY - 2012 AN - OPUS4-26308 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Hodoroaba, Vasile-Dan A1 - Rackwitz, Vanessa T1 - Prediction of Detection Limits of Micro X-Ray Fluorescence (µXRF) T2 - Microscopy and Microanalysis 2012 CY - Phoenix, AZ, USA DA - 2012-07-29 PY - 2012 AN - OPUS4-26309 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Darlatt, Erik A1 - Nefedov, A. A1 - Traulsen, C.H.-H. A1 - Poppenberg, J. A1 - Richter, S. A1 - Dietrich, Paul A1 - Lippitz, Andreas A1 - Illgen, René A1 - Kühn, Julius A1 - Schalley, C.A. A1 - Wöll, Ch. A1 - Unger, Wolfgang T1 - Interperetation of experimental N K NEXAFS of azide, 1,2,3-triazole and terpyridyl groups by DFT spectrum simulations N2 - Experimental N K-edge NEXAFS data of surface immobilized azide, 1,2,3-triazole and terpyridyl groups are interpreted with the help of DFT spectrum simulations. Assignments of π* resonances in experimental N K-edge NEXAFS spectra to nitrogen atoms within these functional groups have been made. The azide was immobilized on gold as the head group of a thiol SAM, 1,2,3-triazole was formed on this SAM by click reaction and terpyridyl groups were introduced as substituents of the acetylene used for the click reaction. For azide-terminated molecules, DFT spectrum simulations are found to be useful to find measurement conditions delivering experimental N K-edge NEXAFS data with negligible X-ray damage. The 1,2,3-triazole group is found to be rather stable under X-ray irradiation. KW - N K-edge NEXAFS KW - XANES KW - Surface click chemistry KW - Density functional theory KW - Azide KW - 1,2,3-Triazole PY - 2012 U6 - https://doi.org/10.1016/j.elspec.2012.09.008 SN - 0368-2048 SN - 1873-2526 VL - 185 IS - 12 SP - 621 EP - 624 PB - Elsevier CY - Amsterdam AN - OPUS4-27774 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Naghib Zadeh, Hamid A1 - Rabe, Torsten T1 - Pressure-assisted sintering of multilayer transformer using LTCC-compatible NiCuZn-ferrite and silver conductor T2 - CICMT 2012 - 8th International conference on ceramic interconnect & ceramic microsystems technologies CY - Erfurt, Germany DA - 2012-04-16 KW - LTCC KW - Ferrite KW - Silver conductor PY - 2012 SP - 000476 EP - 000483 (Session WP 1 / WP 15) AN - OPUS4-27775 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Hättig, J. A1 - Bräuer, W. A1 - Pretsch, Thorsten T1 - Programmierbares TPU für den Produktschutz - Etiketten mit Gedächtnis N2 - Mit Formgedächtnispolymeren auf Basis von TPU sind Bauteile spritzgieß- oder extrudierbar, die sich vorübergehend durch eine gezielte thermomechanische Behandlung in einer anderen temporären Form fixieren und stabilisieren lassen. Damit können Informationen gespeichert, vorübergehend sicher verschlüsselt und als Quick Response (QR)-Codes mit schaltbarer Lesbarkeit auf TPU-Etiketten eingraviert werden. KW - Thermoplastisches Polyurethan (TPU) KW - Poly(ester uretahne) KW - Desmopan KW - Formgedächtnispolymer KW - Shape memory polymer KW - Smarte Etiketten KW - TPU Etiketten KW - Fälschungssicher KW - Smartphone KW - QR code KW - Färbeverfahren KW - Guest diffusion KW - TPU Folien KW - Technologieentwicklung PY - 2012 SN - 0032-1338 VL - 1 IS - 12 SP - 40 EP - 42 PB - Hüthig CY - Heidelberg AN - OPUS4-27776 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Esteban-Fernández, D. A1 - Bierkandt, Frank A1 - Linscheid, M.W. T1 - MeCAT labeling for absolute quantification of intact proteins using labelspecific isotope dilution ICP-MS N2 - Sensitive, accurate and fast absolute quantification of intact proteins is reported using metal coded affinity tags (MeCATs) combined with gel electrophoresis (GE) separation, inductively coupled plasma mass spectrometry (ICP-MS) detection and label-specific isotope dilution analysis quantification. Two different approaches were investigated concerning the introduction of the sample into ICP-MS, mineralization of the gel and direct laser ablation (LA) of the spot. Three major advantages are remarkable in the proposed method. First, not only heteroatom-containing proteins but also all labeled proteins in the sample can be absolutely quantified preparing an isotopically enriched tracer. On the other hand, highly sensitive determination in the amol range can be performed, considerably reducing the analysis time due to the straightforward measurements by ICP-MS. Furthermore, the studied method allows accurate quantifications with different sample-to-spike ratios and using stock spikes stored for months. After the first characterization using standard proteins, human serum albumin (HSA) and transferrin (Tf) were determined in human serum to test the applicability of the method to biological samples. The results show satisfactory quantifications for the studied proteins despite the difference in concentration and the similarity in migration distances. PY - 2012 U6 - https://doi.org/10.1039/c2ja30137g SN - 0267-9477 SN - 1364-5544 VL - 27 IS - 10 SP - 1701 EP - 1708 PB - Royal Society of Chemistry CY - London AN - OPUS4-27777 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Habel, Wolfgang T1 - Selected Examples of Fibre-optic Sensor Use for Integrity Monitoring of Energy-related Facilities and Structures - Sensor Capabilities and Reliability Aspects (invited lecture) T2 - Conference and Workshop "Fibre Optics in Energy" CY - Abu Dhabi, United Arab Emirates DA - 2012-12-09 PY - 2012 AN - OPUS4-27770 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Wöhlecke, Andreas A1 - Müller, Werner T1 - Geosynthetics and their certification for landfill liner and capping systems in Germany T2 - 5th International conference geosynthetics Middle East 2012 CY - Abu Dhabi, UAE DA - 2012-11-19 PY - 2012 IS - Chapter 15 SP - 173 EP - 184 CY - Würzburg AN - OPUS4-27784 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Wöhlecke, Andreas A1 - Müller, Werner ED - Egloffstein, T. ED - Burkhardt, G. T1 - Stand der Zulassungen von Geokunststoffen im Bereich Deponien T2 - 22. Karlsruher Deponie- und Altlastenseminar 2012 - Abschluss und Rekultivierung von Deponien und Altlasten CY - Karlsruhe, Germany DA - 2012-10-17 PY - 2012 SN - 978-3-939662-12-9 VL - 23 SP - 59 EP - 75 PB - ICP Eigenverlag Bauen und Umwelt CY - Karlsruhe AN - OPUS4-27785 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Grzeszkowski, Mateusz A1 - Prager, Jens ED - Linde, B. B. J. ED - Paczkowski, J. ED - Ponikwicki, N. T1 - Determination and visualization of the wave propagation on solid surfaces using a single head laser vibrometer N2 - This paper presents an automated system for the evaluation and visualization of structural vibrations on the surface of solid materials in an ultrasonic frequency range using a single head laser Doppler vibrometer. For this method, the vibrometer performs a continuous scan of the surface driven by a two-axes robotic system. Scan and measurement parameters can be adapted to the requirements of geometry, frequency and resolution. Data processing techniques are employed to improve the signal-to-noise ratio and minimize the effect of inconvenient laser beam reflections caused by speckles. T2 - International congress on ultrasonics CY - Gdansk, Poland DA - 2011-09-05 KW - Acoustic signal processing KW - Data visualisation KW - Doppler measurement KW - Measurement by laser beam KW - Robots KW - Structural acoustics KW - Structural engineering KW - Structural engineering computing KW - Vibration measurement PY - 2012 SN - 978-0-7354-1019-0 U6 - https://doi.org/10.1063/1.3703184 SN - 0094-243X N1 - Serientitel: AIP conference proceedings – Series title: AIP conference proceedings IS - 1433 SP - 259 EP - 262 PB - American Institute of Physics CY - Melville, NY AN - OPUS4-27791 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Kolkoori, Sanjeevareddy A1 - Rahman, Mehbub-Ur A1 - Prager, Jens T1 - Effect of columnar grain orientation on ultrasonic plane wave energy reflection and transmission behaviour in anisotropic austenitic weld materials N2 - This article describes a comprehensive quantitative analysis on effect of columnar grain orientation on ultrasonic plane wave energy reflection and transmission behaviour in acoustically anisotropic austenitic weld materials. The quantitative results are presented for following general interfaces (a) Isotropic-Anisotropic, (b) Anisotropic-Isotropic, (c) Fluid-Anisotropic, (d) Anisotropic-Fluid, (e) Anisotropic-Anisotropic, (f) Anisotropic-Free surface occur during the ultrasonic non destructive evaluation of austenitic weld materials. Explicit analytical expressions are presented for energy reflection and transmission coefficients at an interface between two arbitrarily oriented transversely isotropic materials. By applying explicit analytical expressions for energy reflection and transmission coefficients, numerical results are presented for several columnar grain orientations of the transverse isotropic austenitic weld material including both real and complex domain of the reflected and transmitted normal component of slowness vectors. Valid domains of incident wave vector angles, angular dependency of energy reflection and transmission coefficients and critical angles for reflected and transmitted waves are discussed. The existence of a reflected (or) transmitted second branch of quasi shear vertical waves and its consequence to the ultrasonic non destructive testing of austenitic weld materials are investigated. The presented comprehensive quantitative evaluation provides an overview on the effect of anisotropic properties on energy reflection and transmission coefficients in columnar grained austenitic weld materials. KW - Anisotropy KW - Inhomogeneous waves KW - Austenitic weld material KW - Polarization vector KW - Energy skewing KW - Critical angle KW - Energy flux vector KW - Evanescent waves PY - 2012 U6 - https://doi.org/10.1007/s10921-012-0140-1 SN - 0195-9298 SN - 1573-4862 VL - 31 IS - 3 SP - 253 EP - 269 PB - Plenum Press CY - New York, NY AN - OPUS4-27792 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Knaust, Christian T1 - Numerische Simulation von Brandszenarien in Industriehallen und die DIN 18230 T2 - ProcessNet-Arbeitsausschuss "Vorbeugender Brandschutz in der chemischen Industrie" CY - Frankfurt am Main, Germany DA - 2012-08-23 PY - 2012 AN - OPUS4-27794 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Knaust, Christian A1 - Kaudelka, Sven A1 - Krause, Ulrich T1 - Numerische Simulation von Brandszenarien in Industriehallen T2 - ProzessNet-Jahrestagung 2012 und 30. Jahrestag der Biotechnologen Prozess- und Anlagensicherheit, Brandschutz CY - Karlsruhe, Germany DA - 2012-09-10 PY - 2012 AN - OPUS4-27796 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Knaust, Christian A1 - Rogge, Andreas T1 - CFD Modeling of a tunnel fire by thermal coupling of fluid flow and structure T2 - International Congress "Fire Computer Modeling" CY - Santander, Spain DA - 2012-10-18 PY - 2012 AN - OPUS4-27797 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Hoffmann, Katrin A1 - Resch-Genger, Ute A1 - Behnke, Thomas A1 - Würth, Christian T1 - Rationally Designed NIR-Flourescent Nanoparticles for Bioanalytical Applications T2 - EUCheMS 2012 CY - Prague, Czech Republic DA - 2012-08-26 PY - 2012 AN - OPUS4-27807 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Wirth, Cynthia A1 - Dombrowski, Felix A1 - Günster, Jens T1 - Additive manufacturing of bioaktive ceramic scaffolds T2 - XI Encontro da SBPMat CY - Florianópolis, Brazil DA - 2012-09-23 PY - 2012 N1 - Geburtsname von Wirth, Cynthia: Gomes, C. M. - Birth name of Wirth, Cynthia: Gomes, C. M. AN - OPUS4-27839 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Günster, Jens A1 - Wirth, Cynthia A1 - Mühler, Th. A1 - Heinrich, J. G. T1 - Direct Laser Sintering for the Manufacture of Ceramics: Status and Perspective T2 - XI Encontro da SBPMat CY - Florianópolis, Brazil DA - 2012-09-23 PY - 2012 N1 - Geburtsname von Wirth, Cynthia: Gomes, C. M. - Birth name of Wirth, Cynthia: Gomes, C. M. AN - OPUS4-27840 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Günster, Jens A1 - Wirth, Cynthia A1 - Mühler, Th. A1 - Heinrich, J. G. T1 - Additive Manufacture of Ceramics: Status and Perspective T2 - BIT's 1st Annual World Congress of Advanced Materials 2012 CY - Beijing, China DA - 2012-06-06 PY - 2012 N1 - Geburtsname von Wirth, Cynthia: Gomes, C. M. - Birth name of Wirth, Cynthia: Gomes, C. M. AN - OPUS4-27841 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Pelkner, Matthias A1 - Neubauer, Andreas A1 - Kreutzbruck, Marc T1 - Automatisierte Streuflussprüfung und Bewertung von Zylinderlagerringen unter Anwendung von GMR-Sensorarrays T2 - DACH-Tagung (DGZfP-Jahrestagung) CY - Graz, Austria DA - 2012-09-17 PY - 2012 AN - OPUS4-27819 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Pelkner, Matthias A1 - Neubauer, Andreas A1 - Kreutzbruck, Marc T1 - Design und Charakterisierung ZfP-angepasster GMR-Sensorarrays T2 - DACH-Tagung (DGZfP-Jahrestagung) CY - Graz, Austria DA - 2012-09-17 PY - 2012 AN - OPUS4-27820 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Priebe, Nsesheye Susan T1 - Use of innovative technology in cement production for Africa's available resources T2 - 18. IBAUSIL- Internationale Baustofftagung CY - Weimar, Germany DA - 2012-09-12 PY - 2012 N1 - Geburtsname von Priebe, Nsesheye Susan: Msinjili, N. S. - Birth name of Priebe, Nsesheye Susan: Msinjili, N. S. AN - OPUS4-29022 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Bremser, Wolfram T1 - New approaches to uncertainty evaluation: Propagation of uncertainty, numerical methods, and Monte Carlo simulation. T2 - EURACHEM Wokshop on Validation/Traceability/Measurement Uncertainty CY - Berlin, Germany DA - 2012-05-21 PY - 2012 AN - OPUS4-29307 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Bremser, Wolfram T1 - What's new in ISO/REMCO - Activities in standardisation T2 - 17th Annual Meeting of COOMET TC 1.12 "Reference Materials" CY - Braunschweig, Germany DA - 2012-10-09 PY - 2012 AN - OPUS4-29308 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Gümpel, P. A1 - Leu, F. A1 - Burkert, Andreas A1 - Lehmann, Jens T1 - New lean alloy alternatives for 300 series stainless steels - a corrosion perspective KW - Austenitic stainless steels KW - Ferritic stainless steels KW - Duplex stainless steels KW - Manganese alloyed stainless steels KW - Pitting corrosion KW - Stress corrosion cracking KW - Passive layer KW - Surface condition PY - 2012 SN - 1906-151X VL - 5 IS - 4 SP - 29 EP - 42 PB - King Mongkut's University of Technology CY - North Bangkok AN - OPUS4-29066 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Schenk, Gottfried A1 - Brackrock, Daniel A1 - Boehm, Rainer A1 - Willems, H. T1 - Schallfeldsteuerung mit Matrixarrays - Vergleichsmessungen an Testkörpern T2 - DACH Jahrestagung 2012 CY - Graz, Austria DA - 2012-09-17 PY - 2012 AN - OPUS4-29112 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Goedecke, Thomas A1 - Martin, Carsten T1 - UHF RFID Three-dimensional performance analyzing system T2 - 18th IAPRI World packaging conference CY - San Luis Obispo, CA, USA DA - 2012-06-17 PY - 2012 SN - 978-1-60595-084-6 SP - 41 EP - 47 PB - DEStech Publications, Inc. CY - Lancaster, Pennsylvania, USA AN - OPUS4-29042 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Eisenacher, Germar A1 - Kuschke, Christian A1 - Schubert, Sven A1 - Neumann, Martin A1 - Sterthaus, Jens A1 - Nitz, Thilo A1 - Wille, Frank T1 - Moisture content of wood: influence on mechanical behaviour of wood filled impact limiters and importance for quality surveillance during manufacturing N2 - The moisture content of wood is known to have a significant influence on the wood's mechanical properties. Using wood as an energy absorber in impact limiters of packages for the transport of radioactive material, it is of particular importance to ensure the moisture content and thus relevant mechanical properties to be in specified limits. The paper surveys the influence of wood moisture content on the mechanical properties of wood. Different measuring methods are discussed with respect to in situ applicability, accuracy and effort. The results of an experimental analysis of the accuracy of hand held moisture metres using the electrical resistance method are discussed. Conclusions are drawn regarding the measurement of moisture content of wood upon delivery as well as of complete impact limiter assemblies. Requirements for quality surveillance during manufacturing of wood filled impact limiters are derived and it is exemplified how to meet them. Construction, manufacturing and inspection of impact limiter encapsulation with regard to leak tightness are addressed. KW - Electrical resistance method KW - Impact limiter KW - Moisture content KW - Moisture metre KW - Wood PY - 2012 U6 - https://doi.org/10.1179/1746510913Y.0000000023 SN - 1746-5095 SN - 1746-5109 SN - 0957-476X VL - 23 IS - 3-4 SP - 179 EP - 185 PB - Ramtrans Publ. CY - Ashford AN - OPUS4-29243 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Rolle, Annette A1 - Droste, Bernhard A1 - Schubert, Sven A1 - Probst, Ulrich A1 - Wille, Frank T1 - Verification of activity release compliance with regulatory limits within spent fuel transport cask assessment N2 - Admissible limits for activity release from type B(U) packages for spent fuel transport specified in the International Atomic Energy Agency regulations (10-6 A2 h-1 for normal conditions of transport and A2 per week for accidental conditions of transport) have to be kept by an appropriate function of the cask body and its sealing system. Direct measurements of activity release from the transport casks are not feasible. Therefore, the most common method for the specification of leak tightness is to relate the admissible limits of activity release to equivalent standardised leakage rates. Applicable procedure and calculation methods are summarised in the International Standard ISO 12807 and the US standard ANSI N14·5. BAM as the German competent authority for mechanical, thermal and containment assessment of packages liable for approval verifies the activity release compliance with the regulatory limits. Two fundamental aspects in the assessment are the specification of conservative design leakage rates for normal and accidental conditions of transport and the determination of release fractions of radioactive gases, volatiles and particles from spent fuel rods. Design leakage rates identify the efficiency limits of the sealing system under normal and accidental transport conditions and are deduced from tests with real casks, cask models or components. The releasable radioactive content is primarily determined by the fraction of rods developing cladding breaches and the release fractions of radionuclides due to cladding breaches. The influence of higher burn-ups on the failure probability of the rods and on the release fractions are important questions. This paper gives an overview about methodology of activity release calculation and correlated boundary conditions for assessment. KW - Containment compliance KW - Seals KW - Regulations KW - Activity release PY - 2012 U6 - https://doi.org/10.1179/1746510913Y.0000000012 SN - 1746-5095 SN - 1746-5109 SN - 0957-476X VL - 23 IS - 3-4 SP - 149 EP - 152 PB - Ramtrans Publ. CY - Ashford AN - OPUS4-29244 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Kruschwitz, Sabine A1 - Niederleithinger, Ernst A1 - Trela, Christiane A1 - Wöstmann, Jens T1 - Use of complex resistivity tomography for moisture monitoring in a flooded masonry specimen N2 - Moisture ingress is one of the major deteriorating factors for building materials. Today, the only approved way to assess such damage is the gravimetric Darr method, which is essentially destructive. Substantial progress has been made using the geophysical complex-resistivity method, which can be applied non-destructively and provides spatial information along two-dimensional sections, rather than punctual along one borehole. Considerable advantages of complex resistivity are its sensitivity to textural properties, as well as the pore-fluid chemistry of wet, porous media. In a comprehensive laboratory study, and later in field scale experiments, it could be shown that complex resistivity may even be able to distinguish between salt content and saturation degree in a single measurement. A comparison with complementary nondestructive testing techniques points to the benefit and further research to be explored in multimethodical approaches. KW - Moisture KW - Salt KW - Masonry KW - Damage KW - Electrical resistivity KW - Radar KW - Radiography KW - Microwaves KW - Ground-penetrating radar KW - Microwave transmission PY - 2012 U6 - https://doi.org/10.1061/(ASCE)IS.1943-555X.0000053 SN - 1076-0342 SN - 1943-555X VL - 18 IS - 1 (Special issue) SP - 2 EP - 11 CY - New York, NY AN - OPUS4-29536 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Gravenkamp, Hauke A1 - Song, C. A1 - Prager, Jens T1 - Numerical simulation of ultrasonic guided waves using the scaled boundary finite element method N2 - The formulation of the Scaled Boundary Finite Element Method is applied for the computation of dispersion properties of ultrasonic guided waves. The cross-section of the waveguide is discretized in the Finite Element sense, while the direction of propagation is described analytically. A standard eigenvalue problem is derived to compute the wave numbers of propagating modes. This paper focuses on cylindrical waveguides, where only a straight line has to be discretized. Higher-order elements are utilized for the discretization. As examples, dispersion curves are computed for a homogeneous pipe and a layered cylinder. T2 - 2012 IEEE International Ultrasonics Symposium (IUS) CY - Dresden, Germany DA - 2012-10-07 KW - Guided waves KW - Simulation KW - Dispersion KW - Scaled boundary finite element method PY - 2012 SN - 978-1-4673-4562-0 U6 - https://doi.org/10.1109/ULTSYM.2012.0673 SN - 1948-5719 SP - 2686 EP - 2689 AN - OPUS4-29665 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Hong, Shuxian A1 - Lai Wai-Lok, Wallace A1 - Helmerich, Rosemarie A1 - Milmann, Boris ED - Biondini, F. ED - Frangopol, D.M. T1 - NDT-based monitoring of accelerated steel corrosion in concrete T2 - IABMAS 2012 - 6th International conference on bridge maintenance, safety and management CY - Stresa, Lake Maggiore, Italy DA - 2012-07-08 KW - Concrete KW - Reinforcement corrosion KW - Nondestructive testing KW - Ground penetration radar KW - Ultrasonic echo PY - 2012 SN - 978-0-415-62124-3 SN - 978-0-203-10338-8 SP - 1 EP - 8(?) PB - CRC Press CY - London, UK AN - OPUS4-29581 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - RPRT A1 - Schoknecht, Ute A1 - Töpfer, Antje A1 - Uhlig, S. A1 - Baldauf, H. T1 - Characterisation of leaching of biocidal active substances of main group 2 'preservatives' from different materials under weathering conditions (Project No. (FKZ) 3708 65 404, Report No. (UBA-FB) 001641/E) N2 - Anwendungen von Bioziden in Materialien für Außenanwendungen sind mögliche Quellen für Biozide in Umweltkompartimenten infolge von witterungsbedingten Auswaschprozessen. Im Bericht werden Leachingprozesse und -parameter als auch Methoden zu deren Untersuchung unter Labor- und Freilandversuchsbedingungen beschrieben. Vorteile und Grenzen der verschiedenen Herangehensweisen zur Untersuchung von Leachingprozessen werden diskutiert. Standardisierte Auswaschtests sowie in der Fachliteratur publizierte Auswaschexperimente werden zusammenfassend dargestellt. Es wird beschrieben, wie Leachingdaten gemäß Technischem Leitfaden zur Biozidprodukten-Richtlinie 98/8/EG für eine Risikobewertung genutzt werden. Ein alternativer Ansatz zur mathematischen Modellierung von Leachingtest-Daten wurde erprobt und wird im Bericht erläutert. Potentiell lassen sich mit dem vorgeschlagenen Ansatz bestimmte gegenwärtig auftretende Schwierigkeiten bei der Risikobewertung umgehen. Applications of biocides in outdoor materials are potential sources of biocides in environmental compartments due to leaching processes under weathering conditions. Leaching processes and parameters as well as methods to investigate leaching processes under laboratory and semi-field conditons are described in the report. Benefits and limitations of different test approaches are discussed. Standardised leaching tests as well as leaching experiments reported in scientific literature are listed. The application of leaching data for risk assessments according to the Technical Guidance Documents for the Biocidal Products Directive (98/8/EC) is described. An alternative approach for mathematical modelling of leaching data was tested and is Explained in the report. Certain difficulties that currently appear during risk assessments may be circumvented by the proposed approach. KW - Test procedures KW - Biocide KW - EU biocidal products directive 98/8/EC KW - Material preservatives KW - In-can preservatives KW - Film preservatives KW - Fibre KW - Leather KW - Rubber and polymerised materials preservatives KW - Masonry preservatives KW - Weathering KW - Leaching KW - Mathematical modelling KW - Risk assessment KW - Biozid KW - EU Biozidproduktenrichtlinie 98/8/EG KW - Materialschutzmittel KW - Topf-Konservierungsmittel KW - Beschichtungsschutzmittel KW - Schutzmittel für Fasern KW - Leder KW - Gummi und polymerisierte Materialien KW - Schutzmittel für Mauerwerk KW - Bewitterung KW - Auswaschung KW - Testverfahren KW - Laborversuche KW - Freilandversuche KW - Mathematische Modellierung KW - Risikobewertung PY - 2012 UR - http://www.umweltbundesamt.de/publikationen/characterisation-of-leaching-of-biocidal-active SN - 1862-4804 SN - 0722-186X IS - 62 SP - 1 EP - 118 PB - Umweltbundesamt CY - Dessau-Roßlau AN - OPUS4-26520 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Waegner, M. A1 - Schröder, M. A1 - Suchaneck, G. A1 - Sturm, Heinz A1 - Weimann, Christiane A1 - Eng, L.M. A1 - Gerlach, G. T1 - Domain formation in nano-patterned PZT thin films N2 - In this work, reactive magnetron-sputtered Pb(Zr,Ti)O3 thin films were used to fabricate well-ordered nanodot arrays by means of nanosphere lithography (NSL). NSL is based on a two-step etch process by means of, firstly adjusting the diameter of polystyrene spheres in the self-assembled polymeric nanosphere mask using reactive ion etching, and secondly transferring the mask to the substrate by ion milling with adjusted heights. Hence, structures with different aspect ratios can be fabricated. Piezoresponse force microscopy was used as the inspection tool on both non-patterned and patterned films. Both the topography and polarization out of plane and in plane was deduced in this mode. Grains of nanodots with low aspect ratio form domain structures comparable to domains in non-patterned films. In contrast to that, nanodots with a higher aspect ratio form particular structures. The in-plane amplitude images show mostly a bisectioned domain assembly, while the out-of-plane amplitude images show in some cases more complex structures like 'c'-shaped domains or multi-domains around a center domain. The patterning of the ferroelectric material was shown to affect the formation of ferroelectric domains. The initial polycrystalline, randomly-ordered films are re-oriented and show domain structures depending on nanodisc diameter and aspect ratio. This may enable tailoring of ferroelectric materials in their piezoelectric and pyroelectric properties by patterning. T2 - MRS Spring meeting 2012 CY - San Francisco, CA, USA DA - 2012-04-09 KW - Nanostructure KW - Piezoresponse KW - Ferroelectric KW - Piezo response force microscopy KW - Nanodots PY - 2012 U6 - https://doi.org/10.1557/opl.2012.1230 SN - 1946-4274 SN - 0272-9172 VL - 1454 SP - 1 EP - 6(?) PB - Mater. Res. Soc CY - Warrendale, Pa. AN - OPUS4-26521 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Helmerich, Rosemarie T1 - Full scale fatigue testing of original truss members and connections T2 - 6th International Conference on Bridge Maintenance, Safety and Management (IABMAS 2012) CY - Stresa, Italy DA - 2012-07-08 PY - 2012 AN - OPUS4-26522 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Helmerich, Rosemarie T1 - Materials Testing of Historic Structures T2 - ERASMUS Intensive Programme, European Summer School on Construction History, CH.ESS 2012 CY - Brussels, Belgium DA - 2012-07-21 PY - 2012 AN - OPUS4-26523 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Jaunich, Matthias A1 - Stark, Wolfgang A1 - Wolff, Dietmar T1 - Material behaviour of static seals at low temperatures T2 - 17th ISC - International sealing conference CY - Stuttgart, Germany DA - 2012-09-13 PY - 2012 SN - 978-3-00-039198-9 IS - A 16 SP - 295 EP - 300 CY - Frankfurt/M. AN - OPUS4-26524 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Solomun, Tihomir A1 - Sturm, Heinz A1 - Wellhausen, Robert A1 - Seitz, H. T1 - Interaction of a single-stranded DNA-binding protein g5p with DNA oligonucleotides immobilised on a gold surface N2 - We report surface plasmon resonance (spr) and confocal fluorescence results concerning the interaction of a gene-5-protein (g5p) with single-stranded DNA oligonucleotides (dT25) tethered to a gold surface. The spr data show that a highly stable g5p–ssDNA complex is readily formed on a gold surface with koff = 1.7 × 10-3 s-1. The extent of the complexion indicated involvement of the cooperative protein–protein interactions within the binding to DNA. In the experiments where dT25 coexist with g5p in the solution, the fluorescence data show that g5p also mediates the binding between the non-complementary oligonucleotides in the solution and those immobilised on the surface. KW - Single stranded DNA KW - g5p protein PY - 2012 U6 - https://doi.org/10.1016/j.cplett.2012.03.017 SN - 0009-2614 SN - 1873-4448 VL - 533 SP - 92 EP - 94 PB - North-Holland Publ. Co. CY - Amsterdam AN - OPUS4-26525 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - RPRT A1 - Adamczyk, Burkart A1 - Schütze, M. T1 - Entwicklung eines neuartigen korrosionsfesten Schutzschichtsystems für einen Prozess zur thermochemischen Aufbereitung von Klärschlammaschen zu Düngemitteln N2 - Zur Erschließung anthropogener Phosphorquellen wurde an der BAM ein Prozess zur Umwandlung von Klärschlammasche in Phosphordünger entwickelt. Die erforderliche Entfernung der Schwermetalle erfolgt in hoch Chlor- oder Chlorwasserstoffhaltigen Atmosphären bei 1000°C. Zur wirtschaftlichen Umsetzung dieses Verfahrens muss ein Ofenwerkstoff verwendet werden, der unter diesen extremen Korrosionsbedingungen beständig ist. Solche Werkstoffe sind derzeit nicht verfügbar. Ziel des Projektes war es, ein unter den Prozessbedingungen beständiges Schutzschichtsystem zu finden, das für die großtechnische Umsetzung geeignet ist. Dazu wurde die Entwicklung eines neuartigen Schutzschichtsystems angestrebt, das die hohe chemische Beständigkeit einer Keramik als Deckschicht mit den hervorragenden Materialeigenschaften eines Metalls als Trägerwerkstoff kombiniert. Die Schichten wurden durch thermisches Spritzen als großtechnisch einsetzbare Applikationsmethode aufgebracht. Es wurden Systeme aus verschiedenen Keramiken (Korund, Magnesiumoxid, Aluminium-Magnesium-Spinell, Y-stabilisiertes Zirkoniumoxid, sowie Mischungen von Spinell bzw. Korund mit MgO) in Kombination mit einem neuartigen Haftvermittler auf NiAlMo-Basis untersucht. Die Versuche zeigten, dass diese neu entwickelte Haftvermittlerschicht unter einer Keramik mit geringer Durchlässigkeit für Sauerstoff bzw. bei geeigneter Vorbehandlung (Voroxidation bei niedrigen Sauerstoffpartialdrücken) eine dichte Oxiddeckschicht bildet. Sie verzögert selbst unter diesen extremen Bedingungen das Fortschreiten der Korrosion und übertrifft in ihrer korrosionsinhibierenden Wirkung alle bekannten metallischen Systeme (wie z.B. auch bekannte kommerzielle NiCrAlYHaftvermittler oder Nickelbasis-Superlegierungen) bei weitem. Die Schichthaftung der keramischen Deckschichten ist dabei von der Anpassung des thermischen Ausdehnungskoeffizienten auf das Gesamtsystem abhängig. Zusätzlich werden eine niedrige Sauerstoffleitfähigkeit bei gleichzeitig hoher Korrosions- und Abrasionsbeständigkeit benötigt. Mit Hilfe der Erkenntnisse aus dem Projekt lässt sich durch eine Modifikation des Haftvermittlers die Haftung der Deckschicht verbessern, so dass eine Einsatzmöglichkeit im direkten Reaktorbetrieb zu erwarten ist. Auf diese Weise wurde im Rahmen dieses Projektes eine Beschichtungslösung entwickelt, die alle bekannten metallischen Systeme bei weitem übertrifft und sich für den Einsatz unter chlorhaltigen Hochtemperaturbedingungen eignet. Das Ziel des Projektes wurde somit erreicht. PY - 2012 IS - Vorh. 16432 N SP - 1 EP - 61 CY - Frankfurt/M. AN - OPUS4-26527 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Heunisch, Andreas T1 - Fabrication and Characterization of Low Temperature Co-fired Ceramic Multilayer with Embedded Cavities T2 - Junior Euromat 2012 CY - Lausanne, Switzerland DA - 2012-07-23 PY - 2012 AN - OPUS4-26529 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Eichler, Thorsten A1 - Isecke, Bernd A1 - Faulhaber, A. A1 - Pruckner, F. T1 - Die sekundären Schutzmechanismen des kathodischen Korrosionsschutzes von Stahl in Beton und ihre Bedeutung für die Praxis PY - 2012 SN - 2191-9798 VL - 9 SP - 672 EP - 675 PB - Vulkan CY - Essen AN - OPUS4-26580 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Beck, Matthias A1 - Burkert, Andreas A1 - Harnisch, J. A1 - Isecke, Bernd A1 - Osterminski, K. A1 - Raupach, M. A1 - Schießl, P. A1 - Tian, W. A1 - Warkus, J. T1 - Deterioration model and input parameters for reinforcement corrosion N2 - The paper presents the damage model of German Research Unit 537 which was used as a working hypothesis for the development of a user-friendly design model. Excerpts from the laboratory experiments and numerical calculations processed in project A of the research unit are presented here. The excerpts include the quantification of self-corrosion, geometrical effects in the macrocell corrosion, development of corroding steel surface and pit depth as well as the quantification of the resistivity of the concrete and the corrosion of steel in cracked concrete. KW - Reinforcement corrosion KW - Macrocell corrosion model KW - Design for durability PY - 2012 U6 - https://doi.org/10.1002/suco.201200004 SN - 1464-4177 VL - 13 IS - 3 SP - 145 EP - 155 PB - Ernst & Sohn CY - Berlin AN - OPUS4-26581 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Burkert, Andreas A1 - Lehmann, Jens T1 - Voraussetzungen für den schadensfreien Einsatz nichtrostender Stähle T2 - Kursleiter-Fortbildung 2012, Kompetenzzentrum Edelstahl-Rostfrei-Verarbeitung CY - Koblenz, Germany DA - 2012-09-24 PY - 2012 AN - OPUS4-26582 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Rosemann, P. A1 - Heyn, Andreas A1 - Schmidt, J. T1 - Short and long term evaluation of the degradation behaviour of Mg-1Ca magnesium alloys with combined coating systems T2 - Eurocorr 2012 CY - Istanbul, Turkey DA - 2012-09-09 PY - 2012 AN - OPUS4-26583 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Heyn, Andreas T1 - Korrosionsausbildung in Deutschland T2 - GfKORR-Arbeitskreis "Lehre" CY - Frankfurt am Main, Germany DA - 2012-09-25 PY - 2012 AN - OPUS4-26584 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Heyn, Andreas T1 - Corrosion Education in Germany T2 - Eurocorr 2012 CY - Istanbul, Turkey DA - 2012-09-09 PY - 2012 AN - OPUS4-26585 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Poltavtseva, Marina A1 - Heyn, Andreas A1 - Boese, Eva T1 - Mechanism of corrosion protection of aluminium clad materials at the example of Alclad 6025 T2 - Eurocorr 2012 CY - Istanbul, Turkey DA - 2012-09-09 PY - 2012 AN - OPUS4-26586 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Babutzka, Martin A1 - Heyn, Andreas A1 - Bender, S. T1 - Electrochemical noise measurements in aqueous paint suspensions T2 - Eurocorr 2012 CY - Istanbul, Turkey DA - 2012-09-09 PY - 2012 AN - OPUS4-26587 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Isecke, Bernd T1 - Qualifizierung von High Performance Werkstoffen für Geothermie T2 - Werkstofftechnische Herausforderungen der Energiewirtschaft CY - Darmstadt, Germany DA - 2012-09-25 PY - 2012 AN - OPUS4-26588 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Adam, Christian A1 - Krüger, Oliver T1 - Das Potential Deutscher Klärschlammaschen für die Wertstoffrückgewinnung T2 - VDI Fachkonferenz Klärschlammbehandlung CY - Berlin, Germany DA - 2012-09-26 PY - 2012 AN - OPUS4-26589 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Herbst, Tristan A1 - Beck, T. A1 - Flassenberg, G. A1 - Schneider, S. A1 - Eden, W. T1 - SIM Stoffkreislauf im Mauerwerksbau - Nachhaltigkeitsanalyse für das Mauerwerksrecycling T2 - 18. Ibausil - Internationale Baustofftagung CY - Weimar, Germany DA - 2012-09-12 PY - 2012 SN - 978-3-00-034075-8 VL - 2 IS - 3.07 SP - 2-1090 - 2-1097 AN - OPUS4-26540 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Hüsken, Götz A1 - Brouwers, H.J.H. T1 - The influence of the fines on the early-age behavior of zero-slump concrete T2 - 18. Ibausil - Internationale Baustofftagung CY - Weimar, Germany DA - 2012-09-12 KW - Zero-slump concrete KW - Green-strength KW - Compaction behavior KW - Intensive compaction test PY - 2012 SN - 978-3-00-034075-8 VL - 2 IS - 3.07 SP - 2-0001 - 2-0008 AN - OPUS4-26541 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Quercia, G. A1 - Spiesz, P. A1 - Hüsken, Götz A1 - Brouwers, H.J.H. T1 - Chloride intrusion and freeze-thaw resistance of self-compacting concrete with two different nano-SiO2 T2 - 18. Ibausil - Internationale Baustofftagung CY - Weimar, Germany DA - 2012-09-12 KW - Nano-SiO2 KW - Concrete KW - Self compacting KW - Durability KW - Chloride and freeze-thaw KW - Nano-silica PY - 2012 SN - 978-3-00-034075-8 VL - 2 IS - 3.07 SP - 2-0123 - 2-0136 AN - OPUS4-26542 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Schmidt, Wolfram A1 - Brouwers, H.J.H. A1 - Kühne, Hans-Carsten A1 - Meng, Birgit T1 - Zum Einfluss der Menge und Modifikation des Fließmittels auf das Erstarren, die Wärmeentwicklung und die frühen Verformungen von Bindemittelleimen T2 - 18. Ibausil - Internationale Baustofftagung CY - Weimar, Germany DA - 2012-09-12 KW - Polycarboxylatether KW - Fließmittel KW - Erstarren KW - Hydratationswärme KW - Schwinden PY - 2012 SN - 978-3-00-034075-8 VL - 2 IS - 3.07 SP - 2-0392 - 2-0399 AN - OPUS4-26543 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Gluth, Gregor A1 - Lehmann, Christian A1 - Haase, Oskar A1 - Rübner, Katrin A1 - Kühne, Hans-Carsten T1 - Geopolymerisation kieselsäurehaltiger Filterrückstände aus der Reststoffaufbereitung der Chlorsilanproduktion T2 - 18. Ibausil - Internationale Baustofftagung CY - Weimar, Germany DA - 2012-09-12 KW - Geopolymere KW - Reststoffe PY - 2012 SN - 978-3-00-034075-8 VL - 1 IS - 3.07 SP - 1-0517 - 1-0524 AN - OPUS4-26544 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Barthel, Maria A1 - Schmidt, Wolfram A1 - Kühne, Hans-Carsten T1 - Betontechnologische Ansätze zur Vermeidung innerstädtischer Hitzeinseln N2 - Die Versiegelung von Oberflächen, Bebauung und die Ausweitung städtischer Gebiete führen weltweit besonders in sonnenreichen Regionen zu innerstädtischen Hitzeinseln. Diese Flächen wirken als Wärmespeicher, so dass an Sonnentagen eine Temperaturdifferenz bis zu 10 K zwischen Stadt und umliegendem Land entstehen kann. Verstärkt wird dieser sogenannte Urban Heat Island Effect (UHIE) durch die meist direkte Abführung des anfallenden Regenwassers in die Kanalisation, wodurch eine Kühlung durch stetige Verdunstung unterbunden ist, Mit steigender Urbanisierung wächst auch die Bedeutung dieses Phänomens. Innerstädtische Hitzeinseln ziehen direkte wirtschaftliche und soziale Folgen nach sich, da hohe Temperaturen eine teure Klimatisierung der Städte bedingen. So entsteht ein erhöhter Verbrauch an Ressourcen sowie zusätzliche Abwärme. Das Wohlbefinden und die Gesundheit der Bevölkerung verschlechtern sich bei sehr hohen Temperaturen, was zu sinkender Leistungsfähigkeit und sogar zu einer erhöhten Sterberate führen kann. T2 - 18. Ibausil - Internationale Baustofftagung CY - Weimar, Germany DA - 12.09.2012 PY - 2012 SN - 978-3-00-034075-8 VL - 2 IS - 3.07 SP - 2-0042 EP - 2-0050 AN - OPUS4-26545 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Weise, Frank A1 - Maier, Bärbel A1 - Alonso, M. T. A1 - Müller, C. T1 - Analyse des Verhaltens von Gesteinskörnungen im Beton bei Frosttauwechselbeanspruchung T2 - 18. Ibausil - Internationale Baustofftagung CY - Weimar, Germany DA - 2012-09-12 PY - 2012 SN - 978-3-00-034075-8 VL - 2 IS - 3.07 SP - 2-0453- 2-0467 AN - OPUS4-26546 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Rübner, Katrin A1 - Schnell, A. A1 - Haamkens, Frank A1 - Jakubcová, Petra A1 - Müller, A. T1 - Leichte Gesteinskörnungen aus Mauerwerkbruch für die Betonherstellung T2 - 18. Ibausil - Internationale Baustofftagung CY - Weimar, Germany DA - 2012-09-12 KW - Leichtbeton KW - Leichte Gesteinskörnung KW - Mauerwerkbruch KW - Recycling KW - Blähgranulate PY - 2012 SN - 978-3-00-034075-8 VL - 2 IS - 3.07 SP - 2-1058 - 2-1065 AN - OPUS4-26547 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Ramge, Peter A1 - Kühne, Hans-Carsten A1 - Ünal, Murat T1 - Entwicklung modularer Steinersatzmassen für Instandsetzung und Reprofilierung von Naturstein im denkmalgeschützten Bereich T2 - 18. Ibausil - Internationale Baustofftagung CY - Weimar, Germany DA - 2012-09-12 KW - Instandsetzungsmörtel KW - Steinersatzmasse KW - Naturstein KW - Steininstandsetzung KW - Reprofilierung KW - Modulares System KW - Denkmalschutz PY - 2012 SN - 978-3-00-034075-8 VL - 2 IS - 3.07 SP - 2-1123 - 2-1130 AN - OPUS4-26548 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Sobetzki, Joana A1 - Bäßler, Ralph T1 - Corrosion properties of high-alloyed materials in the artificial geothermal fluid of the Upper Rhine Rift T2 - Eurocorr 2012 CY - Istanbul, Turkey DA - 2012-09-09 PY - 2012 AN - OPUS4-26549 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Unger, Wolfgang A1 - Straub, Franka A1 - Böllinghaus, Thomas T1 - In-situ detection of deuterium in duplex stainless steels by TOF-SIMS T2 - 17. Arbeitstagung Angewandte Oberfächen-Analytik (AOFA) CY - Soest, Germany DA - 2012-09-24 PY - 2012 AN - OPUS4-26560 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Grehn, M. A1 - Bonse, Jörn A1 - Griga, N. A1 - Seuthe, T. A1 - Mermillod-Blondin, A. A1 - Eberstein, M. A1 - Eichler, H. J. T1 - Thermodynamik Aspects of Single Femtosecond Laser Pulse Ablation of Silicate Glass Systems T2 - XIX International Symposium on High Power Laser Systems & Applications CY - Istanbul, Turkey DA - 2012-09-10 PY - 2012 AN - OPUS4-26561 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Moreno-Gordaliza, E. A1 - Esteban-Fernández, D. A1 - Giesen, Charlotte A1 - Lehmann, K. A1 - Lázaro, A. A1 - Tejedor, A. A1 - Scheler, C. A1 - Canas, B. A1 - Jakubowski, Norbert A1 - Linscheid, M.W. A1 - Gómez-Gómez, M.M. T1 - LA-ICP-MS and nHPLC-ESI-LTQ-FT-MS/MS for the analysis of cisplatin-protein complexes separated by two dimensional gle elctrophoresis in biological samples N2 - A method for the analysis of Pt–protein complexes in biological samples, previously subjected to cisplatin treatment, has been developed. Proteins were separated by gel electrophoresis, and those bound to Pt were detected with high sensitivity by LA-ICP-(SF)-MS. Pt-containing spots were in-gel digested with trypsin, and the peptides produced identified using nHPLC-ESI-LTQ-FT-MS/MS. The influence of protein separation conditions, staining and gel processing prior to laser ablation on Pt–protein bonds preservation have been evaluated using standard proteins incubated with cisplatin. 2-DE separation under non-reducing conditions followed by either Coomassie blue brilliant or silver staining is appropriate for Pt–protein complexes, achieving a good separating resolution of the proteins in biological samples. Direct LA-ICP-MS analysis of glycerol-treated dried gels for Pt–protein monitoring resulted in better sensitivity, more reliable relative Pt signals and a simpler and less time-consuming approach compared to the analysis of blotted membranes. Ablation of gels allowed tackling protein identification of Pt-spots in the remaining non-ablated material in the gel, making it unnecessary to run several gels in parallel for separate Pt detection and protein identification. By using this approach, Pt coordinated to proteins, such as α-2-macroglobulin, transferrin, albumin or hemoglobin, was detected in the serum from a rat treated in vivo with cisplatin after nrSDS-PAGE separation. Furthermore, the first complete LA-ICP-MS metalloprotein contour map in a 2-DE gel has been produced, in this case for the detection of Pt–protein complexes in renal proximal tubule epithelial cells (RPTECs) incubated with cisplatin. Several proteins were identified in those spots containing Pt, which may have a connection with the drug-induced nephrotoxicity mainly affecting this cell type in the kidney. PY - 2012 U6 - https://doi.org/10.1039/c2ja30016h SN - 0267-9477 SN - 1364-5544 VL - 27 IS - 9 SP - 1474 EP - 1483 PB - Royal Society of Chemistry CY - London AN - OPUS4-26562 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Yang, Q.-C. A1 - Jochum, K.P. A1 - Stoll, B. A1 - Weis, U. A1 - Kuzmin, D. A1 - Wiedenbeck, M. A1 - Traub, Heike A1 - Andreae, M. O. T1 - BAM-S005 type A and B: new silicate reference glasses for microanalysis N2 - To test whether the silicate reference glasses BAM-S005-A and BAM-S005-B from BAM (The Federal Institute for Materials Research and Testing, Germany) are suitable materials for microanalysis, we investigated the homogeneity of these reference glasses using the microanalytical techniques EPMA, LA-ICP-MS and SIMS. Our study indicated that all major and most trace elements are homogeneously distributed at micrometre sampling scale in both types of glass. However, some trace elements (e.g., Cs, Cl, Cr, Mo and Ni) seem to be inhomogeneously distributed. We also determined the composition of BAM-S005-A and BAM-S005-B. The EPMA data of major elements confirmed the information values specified by the certificate. With the exception of Sr, Ba, Ce and Pb, our trace element data by LA-ICP-MS were also in agreement with the certified values within the stated uncertainty limits. The reasons for the discrepancy in these four elements are still unclear. In addition, we report new data for twenty-two further trace elements, for which the concentrations were not certified. Based on our investigation, we suggest that both of these materials are suitable for many microanalytical applications. KW - BAM-S005 KW - Microanalysis KW - Reference glasses KW - Homogeneity KW - Characterisation KW - Laser ablation ICP-MS KW - EPMA KW - SIMS KW - Glass KW - Reference material PY - 2012 U6 - https://doi.org/10.1111/j.1751-908X.2012.00171.x SN - 1639-4488 SN - 1751-908X VL - 36 IS - 3 SP - 301 EP - 313 PB - Blackwell CY - Oxford AN - OPUS4-26563 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - GEN A1 - Apitz, S. A1 - Pistol, Klaus A1 - Weise, Frank A1 - Berger, J. T1 - Untersuchung des Zwängungsverhaltens von selbstverdichtendem Beton bei instationärer Hochtemperaturbeanspruchung bis 750 °C KW - Zwangsspannung KW - Selbstverdichtender Beton (SVB) KW - Hochtemperaturverhalten KW - Polypropylenfasern (PPF) PY - 2012 SN - 978-3-8440-1196-8 VL - 3 SP - 83 EP - 93 PB - Shaker AN - OPUS4-26564 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Seefeldt, Henrik A1 - Braun, Ulrike T1 - A new flame retardant for wood materials tested in wood-plastic composites N2 - A new flame retardant based on an ammonium phosphonate is studied with respect to its thermal decomposition and its mode of action in wood-plastic composites (WPCs). The measurements are carried out by means of fire tests (cone calorimeter) and pyrolysis investigations (thermogravimetry, infrared spectroscopy). The flame retardant acts mainly in the condensed phase by increasing the amount of residue formed by the wood part in the WPC. Additional flame dilution is achieved by the release of water, ammonia and carbon dioxide during the decomposition of the flame retardant. KW - Disflamoll TP LXS 51064 KW - Flame retardance KW - Thermogravimetric analysis (TGA) KW - Wood-plastic composites (WPC) PY - 2012 U6 - https://doi.org/10.1002/mame.201100382 SN - 1438-7492 SN - 1439-2054 VL - 297 IS - 8 SP - 814 EP - 820 PB - Wiley-VCH Verl. CY - Weinheim AN - OPUS4-26566 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Pötzsch, Klaus-Michael A1 - Jochems, Frank T1 - Neue Anerkennung am Start - Seeverkehr - Wer prüft künftig Gefahrgut-Tanks, die im Seeverkehr verwendet werden? Die GGVSee sieht ein neues Anerkennungsverfahren für Prüfstellen für ortsbewegliche Druckgeräte vor. KW - Anerkennung KW - Prüfstellen KW - IMDG-Code KW - GGVSee KW - Tanks KW - Ortsbewegliche Druckgeräte PY - 2012 SN - 0016-5808 VL - 57 IS - 9 SP - 50 EP - 51 PB - Storck CY - Hamburg AN - OPUS4-26567 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Ebell, Gino A1 - Burkert, Andreas A1 - Lehmann, Jens A1 - Mietz, Jürgen T1 - Electrochemical investigations on the corrosion behaviour of galvanized reinforcing steels in concrete with chromate-reduced cements N2 - The reduction of the chromate contents in cements affects the electrochemical reactions of galvanized reinforcing steels in fresh concrete. By means of electrochemical measurements and bar pull-out tests the effect of chromates on the formation of protective coatings at the zinc and the bond behaviour have been investigated using chromate-containing and chromate-reduced cements. The results have shown that the bond zone was affected as a result of chromate reduction for cement types CEM I and CEM II. The disturbance to the bond zone should be considered as long-term in relation to the pore structure which is formed. The effects on the bond are largely compensated for as the concrete ages. The results of the related bond strength with displacement paths of 0.1 and 0.5?mm, respectively, are still within the range of expected figures for non-galvanized reinforcing steel despite the structural disturbance. Under practical aspects it is not necessary that the existing structural disturbance with respect to bond strength is taken into consideration. KW - Cement KW - Chromate KW - Concrete KW - Electrochemical measurements KW - Galvanized steel KW - Polarization KW - Pull-out tests KW - Reinforcing steel KW - Zinc PY - 2012 U6 - https://doi.org/10.1002/maco.201106311 SN - 0947-5117 SN - 1521-4176 VL - 63 IS - 9 SP - 791 EP - 802 PB - Wiley-VCH Verl. CY - Weinheim AN - OPUS4-26568 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Lischka, Susanne A1 - Piechotta, Christian T1 - Isotopic labelled standard for the routine analysis of arenobetaine T2 - IICS - 24th International Ion Chromatography Symposium CY - Berlin, Germany DA - 2012-09-18 PY - 2012 AN - OPUS4-26569 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Ecker, Melanie A1 - Pretsch, Thorsten T1 - Durability of QR Code Carriers based on Shape Memory Polymer T2 - ASME 2012 Conference on Smart Materials, Adaptive Structures and Intelligent Systems; SMASIS2012 CY - Stone Mountain, GA, USA DA - 2012-09-19 PY - 2012 AN - OPUS4-26490 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Schröter, Maria-Astrid A1 - Weimann, Christiane A1 - Sturm, Heinz A1 - Holzschneider, M. T1 - Towards a deeper understanding of the dynamic properties of cantilever probes T2 - DPG 2012 CY - Berlin, Germany DA - 2012-03-25 PY - 2012 AN - OPUS4-26491 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Stark, Wolfgang A1 - Böhning, Martin A1 - Teteris, Gundars T1 - Characterization of thermosetting polymers for manufacturing of composite parts by thermal analysis methods T2 - 4th bilateral Symposium on heterocyclic and heterochain polymers for advanced materials CY - Iasi, Romania DA - 2012-09-03 PY - 2012 AN - OPUS4-26492 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Stark, Wolfgang A1 - Braun, Ulrike A1 - Lorenz, Edelgard A1 - Teteris, Gundars T1 - Investigation of Crosslinking and degradation process by infrared Spectroscopy T2 - 4th bilateral Symposium on heterocyclic and heterochain polymers for advanced materials CY - Iasi, Romania DA - 2012-09-03 PY - 2012 AN - OPUS4-26493 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Schreiner, M. A1 - Krumbein, A. A1 - Manzei, St. A1 - Rohn, S. A1 - Kittler, Katrin A1 - Koch, Matthias A1 - Maul, Ronald T1 - Nachweis der Resorption des Cyanotoxins Cylindrospermopsin durch Brassica-Arten T2 - Deutscher Lebensmittelchemikertag 2012 CY - Münster, Germany DA - 2012-09-10 PY - 2012 AN - OPUS4-26494 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Schloß, Svenja A1 - Koch, Matthias A1 - Maul, Ronald A1 - Proske, Matthias T1 - Gewinnung und Charakterisierung von Enniatinen aus Pilzkulturen T2 - 41. Deutscher Lebensmittelchemikertag 2012 CY - Münster, Germany DA - 2012-09-10 PY - 2012 AN - OPUS4-26495 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CHAP A1 - Arlt, C. A1 - Exner, W. A1 - Riedel, U. A1 - Sturm, Heinz A1 - Sinapius, M. ED - Wiedemann, M. ED - Sinapius, M. T1 - Nanoscaled boehmites' modes of action in a polymer and its carbon fiber reinforced plastic N2 - Laminates of carbon fiber reinforced plastic (CFRP), which are manufactured by injection technology, are reinforced with boehmite particles. This doping strengthens the laminates, whose original properties are weaker than those of prepregs. Besides the shear strength, compression strength and the damage tolerance, the mode of action of the nanoparticles in resin and in CFRP is also analyzed. It thereby reveals that the hydroxyl groups and even more a taurine modification of the boehmites' surface alter the elementary polymer morphology. Consequently a new flow and reaction comportment, lower glass transition temperatures and shrinkage, as well as a changed mechanical behavior occur. Due to a structural upgrading of the matrix (higher shear stiffness, reduced residual stress), a better fiber-matrix adhesion, and differing crack paths, the boehmite nanoparticles move the degradation barrier of the material to higher loadings, thus resulting in considerably upgraded new CFRP. KW - Nano particles KW - Epoxy KW - Aerospace PY - 2012 SN - 978-3-642-29189-0 IS - Chapter 4 SP - 49 EP - 58 PB - Springer CY - Berlin, Heidelberg AN - OPUS4-26496 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Kuchenbecker, Petra T1 - Folien- und Multilayertechnologie T2 - ZEMI Microsystems Summer School Berlin CY - Berlin, Germany DA - 2012-08-27 PY - 2012 AN - OPUS4-26497 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Rolle, Annette A1 - Probst, Ulrich A1 - Ballheimer, Viktor A1 - Müller, Karsten A1 - Winkler, H. P. T1 - Transport condition effects on the sealing system and activity release within spent fuel transport casks T2 - RAMTRANSPORT 2012 - 9th International Conference on the Radioactive Materials Transport and Storage CY - London, UK DA - 2012-05-22 KW - Radioactive material KW - Safety assessment KW - Spent fuel KW - Leak tightness PY - 2012 SP - 1 EP - 9(?) AN - OPUS4-26498 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Baer, Wolfram T1 - Adequate measurement of force, displacement and crack initiation in dynamic fracture mechanics experiments N2 - Fracture mechanics testing at dynamic loading conditions requires appropriate methods for the measurement of force and displacement. In some cases additional measurement techniques must be used to obtain further information like the time of crack initiation. Dedicated standard pro-cedures for impact type dynamic fracture mechanics tests are not available. Several standards on quasistatic or elevated loading rate fracture mechanics testing provide some more general experi-mental guidelines and they often exclude impact conditions. Therefore, the first step of dynamic fracture mechanics investigations should always be to establish an appropriate and validated test method. T2 - ECF 19 - 19th European conference on fracture - Fracture mechanics for durability, reliability and safety CY - Kazan, Russia DA - 26.08.2012 KW - Dynamic fracture mechanics tests KW - Measurement KW - Force KW - Displacement KW - Crack initiation PY - 2012 SN - 978-5-905576-18-8 IS - Proceeding-ID 116 SP - 1 EP - 8 AN - OPUS4-26499 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CHAP A1 - Carvalho, José Joao A1 - Schneider, Rudolf ED - Preedy, V.R. T1 - Analysis of caffeine by immunoassay KW - Immunoassay KW - ELISA KW - Koffein KW - Getränke KW - Trinkwasser KW - Oberflächengewässer KW - Abwasser KW - Speichel PY - 2012 SN - 978-1-84973-367-0 SN - 2045-1695 N1 - Serientitel: Food and nutritional components in focus – Series title: Food and nutritional components in focus VL - 2 IS - Chapter 12 SP - 213 EP - 229 PB - RSC Publ. AN - OPUS4-26530 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CHAP A1 - Carvalho, José Joao A1 - Emmerling, Franziska A1 - Schneider, Rudolf ED - Preedy, V.R. T1 - The chemistry of caffeine KW - Koffein KW - Chemie KW - Kristallstrukturen KW - Geschichte PY - 2012 SN - 978-1-84973-367-0 U6 - https://doi.org/10.1039/9781849734752-00041 SN - 2045-1695 N1 - Serientitel: Food and nutritional components in focus – Series title: Food and nutritional components in focus VL - 2 IS - Chapter 3 SP - 41 EP - 52 PB - RSC Publ. AN - OPUS4-26531 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Unger, Jörg F. T1 - Multiscale simulation of localization phenomena using XFEM² T2 - ECCOMAS 2012 CY - Vienna, Austria DA - 2012-09-10 PY - 2012 AN - OPUS4-26532 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Weimann, Karin A1 - Adam, Christian T1 - Ökobilanzielle Bewertungen von Abbruch- und Aufbereitungsverfahren als Grundlage für ein optimiertes Bauschuttrecycling T2 - 18. ibausil (Internationale Baustofftagung) CY - Weimar, Germany DA - 2012-09-12 PY - 2012 AN - OPUS4-26533 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Weltschev, Margit A1 - Werner, Jan A1 - Brandt, S. T1 - Compatibility of high density polyethylene grades with bioethanol-gasoline blends and biodiesel T2 - EUROCORR 2012 - The European corrosion congress CY - Istanbul, Turkey DA - 2012-09-09 PY - 2012 SP - 1 EP - 12(?) AN - OPUS4-26534 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Schmidt, Wolfram A1 - Gluth, Gregor T1 - Knowledge transfer and quality assurance - key factors for the future prospects of building with cement in Africa / Wissentransfer und Qualitätssicherung - Schlüsselfaktoren für die Zukunftsperspektiven der Bauweise mit Zement in Afrika KW - Africa KW - Cement KW - Concrete KW - Proficiency testing KW - Round robin PY - 2012 SN - 0949-0205 N1 - Sprachen: Deutsch/Englisch - Languages: German/English VL - 65 IS - 9 SP - 34 EP - 38 PB - Bauverl. BV CY - Gütersloh AN - OPUS4-26535 LA - mul AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Jaunich, Matthias A1 - Stark, Wolfgang A1 - Wolff, Dietmar T1 - Comparison of low temperature properties of different elastomer materials investigated by a new method for compression set measurement N2 - The method for the determination of compression set values with a Dynamic Mechanical Analysis (DMA) setup at low temperatures, which was presented previously, allows a much faster and readily automated procedure than the standardized compression set test according to ISO 815-2. This method is applied to a series of different elastomeric materials that are commonly used for sealing applications. The results of the compression set test are compared with results from thermal analysis to allow an in depth comparison of the material behaviour at low temperatures. Furthermore, a comparison between two EPDM materials is presented. These materials show very similar properties determined by thermo analytical methods such as Differential Scanning Calorimetry (DSC) and Dynamic Mechanical Analysis (DMA) but differ clearly in their compression set behaviour. This comparison shows the importance and value of information of the compression set test in addition to thermal analysis to judge the behaviour of sealing materials and confirms the relevance of the new compression set test method for the investigation of low temperature properties of elastomers. KW - Sealing material KW - Elastomer KW - Compression set KW - Dynamic mechanical analysis KW - Low temperature behaviour PY - 2012 U6 - https://doi.org/10.1016/j.polymertesting.2012.07.016 SN - 0142-9418 VL - 31 IS - 8 SP - 987 EP - 992 PB - Elsevier Science CY - Amsterdam [u.a.] AN - OPUS4-26538 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Krüger-Carstensen, B. A1 - Plarre, Rüdiger T1 - Autoökologische und molekularbiologische Untersuchungen zur Charakterisierung der Kleidermotte Tineola bisselliella Hummel, 1823 (Lepidoptera: Tineidae) als Referenzorganismus T2 - Entomologentagung CY - Berlin, Germany DA - 2011-03-21 KW - Tineola bisselliella KW - Pest organism KW - Outdoor trapping KW - Reference organism PY - 2012 SN - 0344-9084 VL - 18 SP - 123 EP - 127 PB - Deutsche Gesellschaft für Allgemeine und Angewandte Entomologie CY - Gießen AN - OPUS4-26539 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Kricheldorf, H.R. A1 - Weidner, Steffen A1 - Scheliga, F. T1 - Poly(Epsilon-caprolactone) by combined ring-opening polymerization and azeotropic polycondensation - the role of cyclization and equilibration N2 - Using three different catalysts, water-initiated polymerizations of ε-caprolactone were conducted in bulk with variation of the monomer/water ratio. The resulting CH2OH and CO2H- terminated polylactones were subjected in situ to azeotropic polycondensations. With Bi-triflate and temperatures, the polycondensations were not much successful and involved side reactions. With ZnCl2, and especially SnCl2, considerably higher molar masses were achieved. The substitution of toluene for chlorobenzene for refluxing gave better results. The polycondensations broadened the molar mass distribution of the ROP-based prepolymers, and polydispersities between 1.4–1.8 were obtained. The MALDI–TOF mass spectra revealed that the polycondensations significantly enhanced the fraction of rings due to efficient 'end-biting' reactions. By comparison with copolymerization experiments and Sn methoxide-initiated polymerizations, it was demonstrated that equilibration reactions, such as the formation of rings by 'back-biting,' did not occur. KW - Ring-opening polymerization KW - Epsilon-caprolactone (e-CL) KW - Cyclization KW - MALDI-TOF mass spectrometry KW - Polycondensation KW - Polyesters PY - 2012 U6 - https://doi.org/10.1002/pola.26222 SN - 0360-6376 SN - 0887-624X VL - 50 IS - 20 SP - 4206 EP - 4214 PB - Wiley CY - Hoboken, NJ AN - OPUS4-26500 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Yin, Huajie A1 - Schönhals, Andreas T1 - Calorimetric Glass Transition of Thin Miscible Polymer Blend (PVME/PS) Films T2 - 15th International Conference "Polymeric Materials" CY - Halle (Saale), Germany DA - 2012-09-12 PY - 2012 AN - OPUS4-26501 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Yin, Huajie A1 - Schönhals, Andreas T1 - Dielectric Study of Miscible Polymer Blend Thin Films (PS/PVME) T2 - 7th Conference of the International Dielectric Society CY - Leipzig, Germany DA - 2012-09-03 PY - 2012 AN - OPUS4-26502 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Schmidt, Wolfram A1 - Priebe, Nsesheye Susan A1 - Kühne, Hans-Carsten ED - Alexander, M. G. ED - Beushausen, H.-D. ED - Dehn, F. ED - Moyo, P. T1 - Robustness improvement of fresh concrete and mortar performance for challenging casting environments with focus on sub-Saharan Africa T2 - 3rd International conference on concrete repair, rehabilitation and retrofitting III CY - Cape Town, South Africa DA - 2012-09-03 PY - 2012 SN - 978-0-415-89952-9 N1 - Geburtsname von Priebe, Nsesheye Susan: Msinjili, N. S. - Birth name of Priebe, Nsesheye Susan: Msinjili, N. S. IS - Theme 4 SP - 1324 EP - 1329 PB - CRC Press CY - London, UK AN - OPUS4-26503 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Krause, Christina A1 - Emmerling, Franziska A1 - Schönhals, Andreas T1 - Triphenylene-based discotic liquid crystals T2 - 7th Conference of the International Dielectric Society CY - Leipzig, Germany DA - 2012-09-03 PY - 2012 AN - OPUS4-26504 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Ramge, Peter A1 - Kühne, Hans-Carsten ED - Alexander, M. G. ED - Beushausen, H.-D. ED - Dehn, F. ED - Moyo, P. T1 - Investigations on the performance of concrete repair mortars in composite specimen tests T2 - 3rd International conference on concrete repair, rehabilitation and retrofitting III CY - Cape Town, South Africa DA - 2012-09-03 KW - Concrete repair KW - Repair mortar KW - Composite specimen KW - Shrinkage KW - Stiffness KW - Constraining forces KW - Constraining cracks PY - 2012 SN - 978-0-415-89952-9 IS - Theme 3 SP - 1046 EP - 1052 PB - CRC Press CY - London, UK AN - OPUS4-26505 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Ramge, Peter A1 - Kühne, Hans-Carsten ED - Alexander, M. G. ED - Beushausen, H.-D. ED - Dehn, F. ED - Moyo, P. T1 - Development of repair mortars for the restoration of natural stone in cultural heritage T2 - 3rd International conference on concrete repair, rehabilitation and retrofitting III CY - Cape Town, South Africa DA - 2012-09-03 KW - Repair mortar KW - Natural stone KW - Stone restoration KW - Stone reprofiling KW - Modular system KW - Cultural heritage PY - 2012 SN - 978-0-415-89952-9 IS - Theme 3 SP - 882 EP - 887 PB - CRC Press CY - London, UK AN - OPUS4-26506 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Ünal, Murat A1 - Kühne, Hans-Carsten ED - Alexander, M. G. ED - Beushausen, H.-D. ED - Dehn, F. ED - Moyo, P. T1 - Repair and restoration of 'Dalle de Verre' concrete windows T2 - 3rd International conference on concrete repair, rehabilitation and retrofitting III CY - Cape Town, South Africa DA - 2012-09-03 KW - Repair mortar KW - Concrete repair KW - Dalles de verre KW - Cultural heritage KW - Concrete glazing KW - Cathodic protection PY - 2012 SN - 978-0-415-89952-9 IS - Theme 2 SP - 607 EP - 612 PB - CRC Press CY - London, UK AN - OPUS4-26507 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Priebe, Nsesheye Susan A1 - Schmidt, Wolfram A1 - Gluth, Gregor A1 - Florea, M.V.A. A1 - Kumaran, G.S. A1 - Akindahunsi, A. A. A1 - Uzoegbo, H.C. A1 - Oslakovic, I.S. ED - Alexander, M. G. ED - Beushausen, H.-D. ED - Dehn, F. ED - Moyo, P. T1 - Concrete knowledge improvement in sub-Saharan Africa T2 - 3rd International conference on concrete repair, rehabilitation and retrofitting III CY - Cape Town, South Africa DA - 2012-09-03 KW - Education KW - Research sub-Sahara KW - Africa KW - Cement KW - Concrete PY - 2012 SN - 978-0-415-89952-9 N1 - Geburtsname von Priebe, Nsesheye Susan: Msinjili, N. S. - Birth name of Priebe, Nsesheye Susan: Msinjili, N. S. IS - Theme 5 SP - 1459 EP - 1465 PB - CRC Press CY - London, UK AN - OPUS4-26508 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Woydt, Mathias T1 - Friction reduction in engines and powertrains by polyglycols and/or alternative steels and/or thin films T2 - SAE 2012 Fall Powertrain Conf. CY - Malmö, Sweden DA - 2012-09-18 PY - 2012 AN - OPUS4-26509 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Krüger, Oliver A1 - Adam, Christian T1 - Resource recovery potential of sewage sludge ashes (SSA) T2 - Crete 2012 - 3rd International conference on industrial and hazardous waste management CY - Chania, Crete, Greece DA - 2012-09-12 KW - Sewage sludge ash KW - Phosphorous recovery KW - Mass balance KW - Resource recovery potential PY - 2012 SN - 978-960-8475-17-5 SN - 2241-3138 IS - Session 5: Recovery opportunities SP - 73 EP - 74 AN - OPUS4-26570 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Steinbach, S. A1 - Plarre, Rüdiger A1 - Klutzny, Kerstin T1 - Untersuchungen zur Wirksamkeit von Mikrowellen zur Abtötung von 'echtem Hausschwamm' (Serpula lacrymans), 'Gemeinem Nagekäfer' (Anobium punctatum) und 'Hausbockkäfer' (Hylotrupes bajulus) PY - 2012 SN - 1615-4916 IS - September SP - 29 EP - 31 PB - DHBV GmbH CY - Köln AN - OPUS4-26571 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - RPRT A1 - Jann, Oliver A1 - Richter, Matthias A1 - Kemski, J. A1 - Klingel, R. A1 - Schneider, Uwe A1 - Krocker, Christian T1 - Entwicklung einer praxisnahen Prüfmethode zur Bestimmung der Radon-Exhalation aus Bauprodukten KW - Radon KW - Baumaterialien KW - Emissionsprüfkammer KW - Prüfmethode PY - 2012 SN - 978-3-8167-8723-5 VL - T 3277 SP - 1 EP - 74 PB - Fraunhofer IRB Verl. CY - Stuttgart AN - OPUS4-26572 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Breitenbücher, R. A1 - Sievering, Christoph T1 - Externe Alkalizufuhr in zyklisch beanspruchten Beton und deren Folgen für eine AKR T2 - 18. Ibausil - Internationale Baustofftagung CY - Weimar, Germany DA - 2012-09-12 PY - 2012 SN - 978-3-00-034075-8 VL - 1 IS - 3.07 SP - 1-1223 - 1-1234 AN - OPUS4-26573 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Woydt, Mathias T1 - Tribo-talk: Mineralöl - ein Auslaufmodell T2 - Tribologie-Fachtagung 2012 CY - Göttingen, Germany DA - 2012-09-24 PY - 2012 AN - OPUS4-26574 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Kloß, Heinz A1 - Österle, Werner A1 - Dmitriev, A.I. T1 - Charakterisierung des mechanischen Reibungs- und Verschleißverhaltens von Werkstoffen mittels Simulationsrechnungen (Methode der beweglichen zellularen Automaten) und analytischer Modelle T2 - Tribologie-Fachtagung 2012 CY - Göttingen, Germany DA - 2012-09-24 PY - 2012 AN - OPUS4-26575 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Kovalev, Alexander A1 - Hartelt, Manfred A1 - Spaltmann, Dirk A1 - Wäsche, Rolf A1 - Woydt, Mathias T1 - Zero Wear (Null-Verschleiß) T2 - Tribologie-Fachtagung 2012 CY - Göttingen, Germany DA - 2012-09-24 PY - 2012 AN - OPUS4-26576 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Scholz, Christian A1 - Tamura, T. A1 - Hosohata, S. A1 - Nakase, Takuya A1 - Woydt, Mathias T1 - Null-Verschleiß an Hochleistungs-DLC-Schichten T2 - Tribologie-Fachtagung 2012 CY - Göttingen, Germany DA - 2012-09-24 PY - 2012 AN - OPUS4-26577 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Schneider, Thomas A1 - Vierneusel, B. A1 - Arendt, I. T1 - Optimierte MoS2-PVD-Schichten für wechselnde Umgebungsbedingungen T2 - Tribologie-Fachtagung 2012 CY - Göttingen, Germany DA - 2012-09-24 PY - 2012 AN - OPUS4-26578 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Woydt, Mathias A1 - Kislov, V. A1 - Kislov, S. A1 - Ostrovsky, P. T1 - Localized hardening and structuring of steel by simples process T2 - Tribologie-Fachtagung 2012 CY - Göttingen, Germany DA - 2012-09-24 PY - 2012 AN - OPUS4-26579 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Ebell, Gino A1 - Burkert, Andreas A1 - Mietz, Jürgen T1 - Potential mapping in theory and practice T2 - Eurocorr 2012 CY - Istanbul, Turkey DA - 2012-09-09 PY - 2012 AN - OPUS4-26550 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Olbricht, Jürgen A1 - Skrotzki, Birgit T1 - Untersuchung der Werkstoffschädigung durch kombinierte thermo-mechanische und korrosive Beanspruchung in hocheffizienten Energiewandlungsanlagen T2 - DFG-Konferenz Perspektiven der Energieforschung, Rundgespräch "Werkstoffe in der Energietechnik" CY - Berlin, Germany DA - 2012-09-20 PY - 2012 AN - OPUS4-26551 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Klippel, Alexander A1 - Scheid, Marc A1 - Krause, Ulrich T1 - Investgations into the Influence of Dustiness on Dust Explosions T2 - IX ISHPMIE CY - Kraków, Poland DA - 2012-07-23 PY - 2012 AN - OPUS4-26552 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Woydt, Mathias A1 - Kelling, Norbert A1 - Hannemann, F. A1 - Berberich, N. A1 - Ziegele, H. T1 - STRIBECK-type curves of grey cast iron and AlSi17Cu3 liners T2 - Tribologie-Fachtagung 2012 CY - Göttingen, Germany DA - 2012-09-24 PY - 2012 AN - OPUS4-26553 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Kormunda, M. A1 - Pavlik, J. A1 - Hertwig, Andreas A1 - Nooke, Alida A1 - Krause, Andreas A1 - Beck, Uwe A1 - Steinbach, J. T1 - Magnetron deposited SnO2:Fe films with controlled morphology and a SPR sensor application T2 - PSE 2012 CY - Garmisch-Partenkirchen, Germany DA - 2012-09-10 PY - 2012 AN - OPUS4-26554 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Unger, Wolfgang A1 - Neukammer, J. A1 - Kummrow, A. A1 - Foy, C. A1 - Huggett, J. A1 - Parkes, H. A1 - Zel, J. A1 - Milavec, M. A1 - Simonet, J. A1 - Schimmel, H. A1 - Grunert, H.-P. A1 - Zeichhardt, H. A1 - Akgöz, M. A1 - Honeyborne, I. A1 - McHugh, T. T1 - Metrology for Monitoring Infectious Diseases, Antimicrobial Resistance, and Harmful Micro-Organisms T2 - 30th IFBLS World Congress (International Federation of Biomedical Laboratory Science) CY - Berlin, Germany DA - 2012-08-18 PY - 2012 AN - OPUS4-26555 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Gluth, Gregor A1 - Lehmann, Christian A1 - Haase, Oskar A1 - Rübner, Katrin A1 - Kühne, Hans-Carsten T1 - Geopolymerisation kieselsäurehaltiger Rückstände aus der Reststoffaufbereitung der Chlorosilanproduktion T2 - 18. Internationale Baustofftagung (IBAUSIL) CY - Weimar, Germany DA - 2012-09-12 PY - 2012 AN - OPUS4-26556 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Ünal, Murat A1 - Kühne, Hans-Carsten A1 - Ramge, Peter T1 - Untersuchungen zur Schadenssituation an Betonglasfenstern und Entwicklung von Betonersatzsystem zur Instandsetzung T2 - 18. Internationale Baustofftagung (IBAUSIL) CY - Weimar, Germany DA - 2012-09-12 PY - 2012 AN - OPUS4-26557 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Ramge, Peter A1 - Kühne, Hans-Carsten A1 - Ünal, Murat T1 - Entwicklung modularer Steinersatzmassen für Instandsetzung und Reprofilierung von Naturstein im denkmalgeschützten Bereich T2 - 18. Internationale Baustofftagung CY - Weimar, Germany DA - 2012-09-12 PY - 2012 AN - OPUS4-26558 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Poli, Marco A1 - Grätz, Rainer A1 - Schröder, Volkmar T1 - Sicherheitsrelevante Parameter und Kenngrößen bei beschleunigten Explosionsdruckentlastungen von Gasen T2 - ProcessNet-Jahrestagung und 30. DECHEMA-Jahrestagung der Biotechnologen 2012 CY - Karlsruhe, Germany DA - 2012-09-10 PY - 2012 AN - OPUS4-26559 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Barthel, Maria A1 - Kühne, Hans-Carsten A1 - Schmidt, Wolfram T1 - Concrete Solutions for the Mitigation of the Urban Heat Island Effect T2 - fib Symposium: Concrete Structures for Sustainable Community CY - Stockholm, Sweden DA - 2012-06-11 PY - 2012 AN - OPUS4-26510 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Ramge, Peter A1 - Kühne, Hans-Carsten T1 - Investigations on the Performance of Concrete Repair Mortars in Composite Specimen Tests T2 - ICCRRR 2012 - 3rd International Conference on Concrete Repair, Rehabilitation and Retrofitting CY - Cape Town, South Africa DA - 2012-09-03 PY - 2012 AN - OPUS4-26511 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Ramge, Peter A1 - Kühne, Hans-Carsten T1 - Development of Repair Mortars for the Restoration of Natural Stone in Cultural Heritage T2 - ICCRRR 2012 - 3rd International Conference on Concrete Repair, Rehabilitation and Retrofitting CY - Cape Town, South Africa DA - 2012-09-03 PY - 2012 AN - OPUS4-26512 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Ramge, Peter T1 - Concrete Repair and Maintenance T2 - SPIN Project Workshop CY - Johannesburg, South Africa DA - 2012-09-06 PY - 2012 AN - OPUS4-26513 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Hüsken, Götz A1 - Brouwers, J. T1 - The Influence of the Fines on the Early-Age Behavior of Zero-Slump Concrete T2 - IBAUSIL CY - Weimar, Germany DA - 2012-09-12 PY - 2012 AN - OPUS4-26514 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Barthel, Maria T1 - Betontechnologische Ansätze zur Vermeidung innerstädtischer Hitzeinseln T2 - 18. IBAUSIL CY - Weimar, Germany DA - 2012-09-12 PY - 2012 AN - OPUS4-26515 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Weise, Frank A1 - Maier, Bärbel A1 - Alonso, M. T. A1 - Müller, C. T1 - Analyse des Verhaltens grenzwertiger von Gesteinskörnungen im Beton bei Frosttauwechselbeanspruchung T2 - IBAUSIL CY - Weimar, Germany DA - 2012-09-12 PY - 2012 AN - OPUS4-26516 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Rübner, Katrin A1 - Haamkens, Frank A1 - Jakubcová, Petra A1 - Müller, A. A1 - Schnell, A. T1 - Leichte Gesteinskürnungen aus Mauerwerkbuch für die Betonherstellung T2 - IBAUSIL CY - Weimar, Germany DA - 2012-09-12 PY - 2012 AN - OPUS4-26517 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Stark, Wolfgang T1 - BAM - Federal Institute for Materials Research and Testing - experiences in the field of quality management at thermosets T2 - 4th Bilaterial Symposium on heterocyclic and heterochain polymers for advanced materials CY - Iasi, Romania DA - 2012-09-03 PY - 2012 AN - OPUS4-26518 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Stark, Wolfgang A1 - Jaunich, Matthias A1 - Wolff, Dietmar T1 - Correlation between low temperature behaviour of rubber seals and glass-rubber transition T2 - 4th Bilateral Symposium on heterocyclic and heterochain polymers for advanced materials CY - Iasi, Romania DA - 2012-09-03 PY - 2012 AN - OPUS4-26519 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Kovalev, Alexander A1 - Hartelt, Manfred A1 - Spaltmann, Dirk A1 - Wäsche, Rolf A1 - Woydt, Mathias T1 - Zero wear (Null Verschleiß) N2 - Während des Gleitreibens auftretende, plastische Deformationen im oberen Bereich der Kontaktspitzen werden als „Null-Verschleiß“ bezeichnet. Um diesen zu quantifizieren, werden in dieser Arbeit statt der üblichen, statistischen Rauheitsparameter die Flächen solcher Kontaktspitzenbefrachtet. Dabei liegen diesen Befrachtungen AFM-Bilder von realen Oberflächentopografien auf der Mikro-/Nanoskala als Ausgangspunkt für die Simulationen zugrunde. In den Simulationen wird berücksichtigt, dass die Flächen während der Gleitreibung in den Kontaktspitzen elastisch und plastisch verformt werden können. Ebenso wird der Effekt des Einsatzhärtens in die Befrachtungen eingeschlossen. Die Ergebnisse der Computersimulation stellen einen Weg zur Untersuchung der Reibkräfte zu Beginn des EinlaufVorgangs dar, insbesondere dann, wenn sich dabei die wahre Kontaktfläche verändert hat. Die Ergebnisse der Simulation belegen klar, dass das Vorliegen von „Null-Verschleiß“ stark von der Veränderung der Oberfläche abhängt und nicht von der Erzeugung von Verschleißpartikel begleitet wird. N2 - Recent developments in contact mechanics and microfribology have shown that it is very important to study surface modification effects for quantification of „Zero wear“ (plastic deformation of upper parts of asperities) during sliding friction. The present work considers experimental and Simulation data on the Formation of elastic and plastic contact areas during sliding friction on rough surfaces. The Simulation of discrete contact was carried out using as a source the AFMimages of real surface topography at micro/nanoscale. The approach for quantification of „zero wear“, proposed here, is not using common Statistical Parameters of roughness, but it considers contact areas on asperities. In these areas some regions are undergoing plastic deformation which influences surface Transformation during sliding friction. Also, the workhardening effect was taken into account in the Simulation of sliding friction. This enabled a rnore successful fit of experimental data. The results obtained of the Computer simulations will provide a way of studying friction force at the initial stage of the running-in process. T2 - 53. Tribologie-Fachtagung - Reibung, Schmierung und Verschleiß CY - Göttingen, Germany DA - 24.09.2012 PY - 2012 SN - 978-3-00-039201-6 VL - II SP - 43/1 EP - 43/13 CY - Aachen AN - OPUS4-26640 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Kislov, S. A1 - Kislov, V. A1 - Ostrovsky, P. A1 - Woydt, Mathias T1 - Localized hardening and structuring of steel by a simple process T2 - 53. Tribologie-Fachtagung - Reibung, Schmierung und Verschleiß CY - Göttingen, Germany DA - 2012-09-24 PY - 2012 SN - 978-3-00-039201-6 VL - II SP - 49/1 EP - 49/8 CY - Aachen AN - OPUS4-26641 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Woydt, Mathias A1 - Kelling, Norbert A1 - Hannemann, F. A1 - Berberich, N. A1 - Ziegele, H. T1 - Stribeck-type curves of alternative engine oils - Part II: AlSi17Cu4 liners T2 - 53. Tribologie-Fachtagung - Reibung, Schmierung und Verschleiß CY - Göttingen, Germany DA - 2012-09-24 PY - 2012 SN - 978-3-00-039201-6 VL - II SP - 63/1 EP - 63/14 CY - Aachen AN - OPUS4-26642 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Müller, A. A1 - Schnell, A. A1 - Rübner, Katrin T1 - Aufbaukörnungen aus Mauerwerkbruch N2 - Heterogene und feinkörnige Bauabfälle aus Mauerwerkbruch lassen sich heute nur auf einem sehr geringen Qualitätsniveau verwerten. Um diese Situation zu überwinden, wurde das Material als Rohstoff für die Herstellung von leichten Gesteinskörnungen verwendet, die ähnlich wie Blähtone und Blähschiefer in einem thermischen Prozess erzeugt werden. Auf der Grundlage einer Literaturübersicht wurde zunächst die grundsätzliche Eignung von Mauerwerkbruch bewertet. Es folgten experimentelle Untersuchungen, in welchen nachgewiesen werden konnte, dass Leichtgranulate mit definierten, einstellbaren Eigenschaften aus Mauerwerkbruch herstellbar sind. Sie sind in ihren Eigenschaften den leichten Gesteinskörnungen aus natürlichen Rohstoffen mindestens ebenbürtig. ----------------------------------------------------- At present heterogeneous and fine-grained masonry rubble is recycled at a very low level. To overcome this situation the material is used as feedstock for the generation of lightweight aggregates, produced by a thermal process similar to the manufacturing of expanded clays and shales. On the basis of a literature review the suitability of masonry rubble as raw material is evaluated generally. Then materials from different recycling plants were experimentally tested. The results show, that expanded granules with defined, adjustable properties can be produced from masonry rubble. The properties of these secondary lightweight aggregates are at least equivalent to the properties of the known expanded clay aggregates. KW - Blähgranulate KW - Leichte Gesteinskörnungen KW - Mauerwerkbruch KW - Rohstoffliches Recycling KW - Expanded aggregates KW - Feedstock recycling KW - Lightweight aggregates KW - Masonry rubble PY - 2012 U6 - https://doi.org/10.1002/cite.201200089 SN - 0009-286X SN - 1522-2640 VL - 84 IS - 10 SP - 1780 EP - 1791 PB - Wiley-VCH Verl. CY - Weinheim AN - OPUS4-26643 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - GEN A1 - Erning, Johann Wilhelm A1 - Sailer, M. A1 - Pescatore, C. A1 - Boissier, F. A1 - Kessler, J. A1 - Kotra, J. A1 - Löw, S. A1 - Mayor, J.C. A1 - Stroes-Gascoyne, S. A1 - Tokunaga, T. A1 - Compton, K. T1 - The post-closure radiological safety case for a spent fuel repository in Sweden KW - Final repository KW - Safety KW - Copper corrosion PY - 2012 SN - 978-92-64-99191-0 VL - 7084 SP - 1 EP - 153 AN - OPUS4-26644 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Schneider, Rudolf T1 - Identification of Non-Target Analytes by LC-ELISAbFollowed by Accurate Mass Spectromentry T2 - PittCon 2012 CY - Orlando, FL, USA DA - 2012-03-11 PY - 2012 AN - OPUS4-26645 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Wilrich, Cordula T1 - Neue Regelungen zu Tätigkeiten mit Gasen T2 - 5. Rheinsberger Fachtagung "Arbeitssicherheit in der Energieversorgung" CY - Rheinsberg, Germany DA - 2012-09-27 PY - 2012 AN - OPUS4-26646 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Lehmann, Andreas A1 - Hoffmann, Kristin A1 - Schneider, Rudolf T1 - LC-MS Non-Target Screening von Oberflächenwasserproben auf relevante Kreuzreaktanten in einem Immonoassay für Sulfamethoxazol (SMX) T2 - LC-MS in der Umweltanalytik CY - Leipzig, Germany DA - 2012-06-11 PY - 2012 N1 - Geburtsname von Hoffmann, Kristin: Petsch, K. - Birth name of Hoffmann, Kristin: Petsch, K. AN - OPUS4-26647 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Schneider, Rudolf A1 - Bahlmann, Arnold A1 - Hoffmann, Kristin A1 - Lehmann, Andreas T1 - Non-target analysis of emerging contaminants - harnessing antibody selectivity T2 - SETAC 2012 (6th SETAC World Congress and SETAC Europe 22nd Annual Meeting) CY - Berlin, Germany DA - 2012-05-20 PY - 2012 N1 - Geburtsname von Hoffmann, Kristin: Petsch, K. - Birth name of Hoffmann, Kristin: Petsch, K. AN - OPUS4-26648 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Mangelsdorf, Axel A1 - Portugal-Perez, A. A1 - Wilson, J. S. T1 - Food standards and exports: evidence for China N2 - Using a new database on standards in China, we estimate the impact of voluntary and mandatory standards – either harmonized to international norms or purely domestic – on Chinese food exports. The dataset covers seven Chinese products over the period 1992–2008. We find that standards have a positive effect on China's export performance, as the benefits to standardization in terms of reducing potential information asymmetry and signaling enhance food safety, and quality in foreign markets seem to surpass compliance costs. Our estimation results show that the positive effect of Chinese standards is larger when they are harmonized to international measures. The results suggest that there are clear benefits to China's steps to base their domestic standards and regulations on international measures. KW - Food standards KW - Trade barriers KW - SPS KW - TBT KW - Harmonization PY - 2012 U6 - https://doi.org/10.1017/S1474745612000195 SN - 1474-7456 SN - 1475-3138 VL - 11 IS - 3 SP - 507 EP - 526 PB - Cambridge Univ. Press CY - Cambridge AN - OPUS4-26600 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Blind, K. A1 - Mangelsdorf, Axel T1 - Alliance formation of SMEs: empirical evidence from standardization committees N2 - This paper explores the decision of small- and medium-sized enterprises (SMEs) to participate in official standard setting alliances. Based on micro data of German firms in the electrical engineering and machinery industry, we show that innovation-related variables follow the predictions of our hypotheses. Research and development (R&D) intensity exhibits an inverse U-shaped relationship on the likelihood to join alliances. The positive relation suggests that SMEs aim to access the knowledge of larger firms whereas the negative relationship indicates that SMEs exceeding a certain threshold of R&D activity are reluctant to participate in standardization because their knowledge is too essential to disclose to competitors. The importance to access external knowledge via standardization committees is underlined by a positive correlation with the relevance of incoming knowledge spillovers and a negative correlation with the relative size of companies' patent portfolios. Besides these variables, we also explore the traditionally considered factors for alliance formation and show that firm size and export intensity are positively correlated with participation. KW - Knowledge spillovers KW - Patents KW - Research and development (R&D) cooperation KW - Small- and medium-sized enterprises (SMEs) KW - Standardization KW - Trade PY - 2012 UR - http://ieeexplore.ieee.org/xpl/articleDetails.jsp?reload=true&tp=&arnumber=6203401&contentType=Early+Access+Articles&sortType%3Dasc_p_Sequence%26filter%3DAND%28p_IS_Number%3A4429834%29%26rowsPerPage%3D50 U6 - https://doi.org/10.1109/TEM.2012.2192935 SN - 0018-9391 SP - 1 EP - 9(?) PB - IEEE CY - New York, NY, USA AN - OPUS4-26601 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Kasch, Thomas A1 - Binder, Christian A1 - Brock, Thomas A1 - Dielforder, Philip A1 - Treisch, Nico T1 - Fire without Cause of an Oxygen Component with an Aluminium Seal T2 - Compatibility and Sensitive of Materials in Oxygen Enriched Atmospheres CY - Montreal, Canada DA - 2012-09-17 PY - 2012 AN - OPUS4-26602 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Kasch, Thomas A1 - Binder, Christian A1 - Hesse, Olaf A1 - Lehné, Siegfried A1 - Ciscato, Walter T1 - Another Dangerous Practice in the SCUBA Diving Community T2 - Compatibility and Sensitive of Materials in Oxygen Enriched Atmospheres CY - Montreal, Canada DA - 2012-09-17 PY - 2012 AN - OPUS4-26603 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Kasch, Thomas A1 - Binder, Christian A1 - Lehné, Siegfried A1 - Ciscato, Walter T1 - Safe for oxygen but not for oxygen-enriched gas mixtures in SCUBA diving T2 - Compatibility and Sensitive of Materials in Oxygen Enriched Atmospheres CY - Montreal, Canada DA - 2012-09-17 PY - 2012 AN - OPUS4-26604 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Blind, K. A1 - Mangelsdorf, Axel ED - Orviska, M. ED - Jakobs, K. T1 - The trade impact of ISO 9000 certifications and international cooperation in accreditation T2 - 17th EURAS annual standardisation conference CY - Kosice, Slovakia DA - 2012-06-18 KW - Standardization KW - Certification KW - Accreditation KW - International trade KW - Gravity mode PY - 2012 SN - 978-3-86130-337-4 N1 - Serientitel: The EURAS board series – Series title: The EURAS board series SP - 21 EP - 33 PB - Verlagshaus Mainz GmbH AN - OPUS4-26605 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Weimann, Karin A1 - Adam, Christian T1 - Ökobilanzielle Bewertungen von Abbruch- und Aufbereitungsverfahren als Grundlage für ein optimiertes Bauschuttrecycling T2 - 18. Ibausil - Internationale Baustofftagung CY - Weimar, Germany DA - 2012-09-12 KW - Bauschuttaufbereitung KW - Abbruch KW - Ökobilanzielle Bewertung KW - RC-Beton KW - Gips PY - 2012 SN - 978-3-00-034075-8 VL - 2 IS - 3.07 SP - 2-1042 - 2-1049 AN - OPUS4-26606 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Rhode, Michael A1 - Kromm, Arne A1 - Kannengießer, Thomas T1 - Residual Stresses in Multi-Layer Component Welds T2 - 5th International Conference on Trends in Welding Research CY - Chicago, IL, USA DA - 2012-06-04 PY - 2012 AN - OPUS4-26607 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Gollnow, Christian A1 - Kannengießer, Thomas A1 - Lauer, R. A1 - Dong, M. A1 - Riekers, R. T1 - Experimental and numercial analysis of local thermomechanical behaviour for hot cracking assessment in welds T2 - Numercial Analysis of Weldability CY - Graz, Austria DA - 2012-09-24 PY - 2012 AN - OPUS4-26608 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Ortwein, Hans-Peter A1 - Trappe, Volker T1 - Investigation of infinite life in fiber-reinforced-plastics by non-destructive monitoring of micro structural damage processes with x-ray-refraction T2 - MSE 2012 CY - Darmstadt, Germany DA - 2012-09-25 PY - 2012 AN - OPUS4-26609 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Sloniec, Jagoda A1 - Resch-Genger, Ute A1 - Hennig, Andreas T1 - Efficiently Quenched Fluorescent NIR Probe for Detection of Enzyme Activity T2 - 23rd Lecture Conference on Photochemistry CY - Potsdam, Germany DA - 2012-10-08 PY - 2012 AN - OPUS4-26670 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Gärtner, Stefanie A1 - Schneider, Rudolf A1 - Carvalho, J. J. A1 - Garbe, L.-A. T1 - A direct competitive ELISA for the anthropogenic marker isolithocholic acid T2 - 7th European Conference on Pesticides and Related Organic Micropollutants in the Environment CY - Oporto, Portugal DA - 2012-10-07 PY - 2012 AN - OPUS4-26671 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Herbst, Tristan A1 - Rübner, Katrin A1 - Müller, A. A1 - Seidemann, M. T1 - Verwertung kieselsäurehaltiger Filterrückstände in mineralischen Baustoffen N2 - - jährlicher Anfall von 5.000 bzw. 10.000 Tonnen wasserhaltiger Filterrückstände (FR) pro Produzent bei der Abwasser-Neutralisation aus der Kieselsäure- bzw. Chlorsilanherstellung (FR1, FR2) - heute: Deponierung, Tagebauverfüllung - ungenutzte Sekundärrohstoffquelle - Untersuchung möglicher Anwendungsbereiche für FR T2 - GDCh Tagung Bauchemie CY - Dübendorf, Switzerland DA - 11.10.2012 PY - 2012 AN - OPUS4-26673 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Rübner, Katrin A1 - Schnell, A. A1 - Müller, A. T1 - Leichte Gesteinskörnungen aus Mauerwerkbruch für die Betonherstellung T2 - Seminar "Grüne Baustellen und Verwertung von Bauabfällen" CY - Strasbourg, France DA - 2012-10-12 PY - 2012 AN - OPUS4-26674 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Ünal, Murat A1 - Ramge, Peter A1 - Kühne, Hans-Carsten T1 - Restoration of Dalles de Verre Concrete Glass Windows with Polymer Modified Repair Mortatrs T2 - ASPIC 2012, 7th Asian Symposium on Polymers in Concrete CY - Istanbul, Turkey DA - 2012-10-03 PY - 2012 AN - OPUS4-26675 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Ramge, Peter A1 - Ünal, Murat A1 - Kühne, Hans-Carsten T1 - Polymer Modified Repair Mortars for the Restoration of Natural Stone in Cultural Heritage T2 - ASPIC 2012, 7th Asian Symposium on Polymers in Concrete CY - Istanbul, Turkey DA - 2012-10-03 PY - 2012 AN - OPUS4-26676 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Würth, Christian A1 - Behnke, Thomas A1 - Resch-Genger, Ute T1 - Determination of brightness values of luminescent particles T2 - 23rd Lecture Conference on Photochemistry CY - Potsdam, Germany DA - 2012-10-08 PY - 2012 AN - OPUS4-26677 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Burkert, Andreas T1 - Korrosion und Korrosionsschutz im Bauwesen T2 - 9. Symposium für Architekten und Planer, BAM CY - Berlin, Germany DA - 2012-10-16 PY - 2012 AN - OPUS4-26678 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Burkert, Andreas A1 - Lehmann, Jens A1 - Burkert, Annette T1 - Detektion korrosionsempfindlicher Oberflächen nichtrostender Stähle durch die Verarbeiter T2 - Arbeitskreissitzung Prüf- und Untersuchungsverfahren und Corrosion Monitoring, GfKORR CY - Mannheim, Germany DA - 2012-10-10 PY - 2012 AN - OPUS4-26679 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Böhning, Martin A1 - Hölck, O. T1 - Kinetic analysis of gas sorption and gas induced dilation and relaxation behaviour of PIM-1 compared to other glassy polymers T2 - Euromembrane 2012 CY - London, England DA - 2012-09-23 PY - 2012 AN - OPUS4-26630 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Böhning, Martin A1 - Hölck, O. A1 - Heuchel, M. T1 - Gas transport in glassy polymers and PNCs - experiment, analysis, modeling of diffusion, sorption and dilation T2 - Workshop: Nanostructured and Nanocomposite Membranes for Gas und Vapour Separation CY - Cetraro, Italy DA - 2012-05-15 PY - 2012 AN - OPUS4-26631 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Becker, Roland A1 - Dorgerloh, Ute A1 - Helmis, Mario A1 - Paulke, E. A1 - Mumme, J. A1 - Nehls, Irene T1 - Solid and liquid products of hydrothermal carbonizsation: Patterns of volatile organic compounds T2 - Third International Symposium on Green Chemistry for Environment, Health and Development CY - Skiathos, Greece DA - 2012-10-03 PY - 2012 AN - OPUS4-26632 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Schneider, Ronald A1 - Thöns, Sebastian A1 - Straub, D. T1 - Reliability-based inspection planning with application to orthotropic bridge deck structures T2 - Third International Symposium on Life-Cycle Civil Engineering (IALCCE'12) CY - Vienna, Austria DA - 2012-10-03 PY - 2012 AN - OPUS4-26633 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Schneider, Ronald A1 - Thöns, Sebastian A1 - Straub, D. T1 - Probabilistic fatigue crack growth modeling for reliability-based inspection planning T2 - Third International Symposium on Life-Cycle Civil Engineering (IALCCE'12) CY - Vienna, Austria DA - 2012-10-03 PY - 2012 AN - OPUS4-26634 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Beckmann, Jörg A1 - von Chrzanowski, Lars A1 - Ewert, Uwe T1 - Zeitaufgelöste THz-Spektroskopie für technische und zivile Sicherheitsanwendungen T2 - DACH Jahrestagung der DGZfP CY - Graz, Austria DA - 2012-09-17 PY - 2012 AN - OPUS4-26635 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Müller, Bernd R. A1 - Hentschel, Manfred P. A1 - Kupsch, Andreas A1 - Lange, Axel T1 - Numerische Korrektur des Hinterleuchtens von Röntgendetektoren T2 - DACH-Jahrestagung 2012 CY - Graz, Austria DA - 2012-09-17 PY - 2012 AN - OPUS4-26636 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Zscherpel, Uwe A1 - Ewert, Uwe A1 - Rost, P. A1 - Schmid, M. A1 - Spartiotis, Konstantinos A1 - Ajat, Oy A1 - Warrikhoff, A. T1 - X-ray Endoskopy for Inspection of Tube-to-Tube Sheet Welds in Heat Exchangers T2 - PSAM 11 and ESREL 2012, Annual European Safety and Reliability Conference CY - Helsinki, Finland DA - 2012-06-25 PY - 2012 AN - OPUS4-26637 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Köppe, Tabea A1 - Bartholmai, Matthias A1 - Daum, Werner ED - Ognjanovic, M. ED - Stankovic, M. ED - Ristic, M. T1 - Introduction in the system of the split Hopkinson pressure bar and validation of the method N2 - The Split Hopkinson Pressure Bar (SHPB) or Kolsky Bar is known as a method for analysing mechanical properties of a material under dynamic load. Referring to the name it is a splitted Hopkinson Pressure Bar. The Hopkinson Bar is related to its inventor Bertram Hopkinson (1914). He used it to analyze stone samples under dynamic load. Later his construction was improved by Davies (1948) [1] and Kolsky (1949) [2], who had the idea to split the bar and put a sample in between. The technique is used to measure a lot of different mechanical properties of a material e.g. the dynamic Young’s modulus, deformation behaviour or to chart the dynamic stress-strain diagram. Further applications are the measurement of the elastic wave and the analysis of the propagation of the wave [2]. In the last years there was still an interest in measuring dynamic properties with a SHPB. Nevertheless no comprehensive validation of the system exists. Another problem is that the stress and the strain in the sample are only calculated with simplified estimations. The aim of this paper is to give a first impression of important points validating the system. On account of different setups of the SHPB a validation of the used system is necessary. Hence it is important to look at the theory. Further in this paper the measurement results will be shown in a strain over time diagram. T2 - DAS-29 - 29th Danubia-Adria-symposium on advances in experimental mechanics CY - Belgrade, Serbia DA - 2012-09-26 PY - 2012 SN - 978-86-7083-762-1 N1 - Geburtsname von Köppe, Tabea: Wilk, T. - Birth name of Köppe, Tabea: Wilk, T. SP - 52 EP - 53 CY - Belgrade, Serbia AN - OPUS4-26638 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Schukar, Vivien A1 - Kadoke, Daniel A1 - Kusche, Nadine A1 - Münzenberger, Sven A1 - Gründer, Klaus-Peter A1 - Habel, Wolfgang T1 - Validation and qualification of surface-applied fibre optic strain sensors using application-independent optical techniques N2 - Surface-applied fibre optic strain sensors were investigated using a unique validation facility equipped with application-independent optical reference systems. First, different adhesives for the sensor's application were analysed regarding their material properties. Measurements resulting from conventional measurement techniques, such as thermo-mechanical analysis and dynamic mechanical analysis, were compared with measurements resulting from digital image correlation, which has the advantage of being a non-contact technique. Second, fibre optic strain sensors were applied to test specimens with the selected adhesives. Their strain-transfer mechanism was analysed in comparison with conventional strain gauges. Relative movements between the applied sensor and the test specimen were visualized easily using optical reference methods, digital image correlation and electronic speckle pattern interferometry. Conventional strain gauges showed limited opportunities for an objective strain-transfer analysis because they are also affected by application conditions. KW - Fiber Bragg grating KW - Surface application KW - Qualification KW - Strain transfer KW - Digital image correlation KW - Electronic speckle pattern interferometry PY - 2012 U6 - https://doi.org/10.1088/0957-0233/23/8/085601 SN - 0957-0233 SN - 1361-6501 VL - 23 IS - 8 SP - 085601-1 - 085601-9 PB - IOP Publ. Ltd. CY - Bristol AN - OPUS4-26639 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Wachtendorf, Volker A1 - Geburtig, Anja T1 - Alterungseffekte bei Polymerwerkstoffen messen N2 - Bei der Auswahl von Werkstoffen spielt deren Alterung oft eine untergeordnete Rolle, stattdessen wird häufig der ungealterte Ausgangszustand optimiert. Materialien altern aber unterschiedlich. Der Effekt der molekularen Alterung spiegelt sich in den Eigenschaften mehr oder weniger stark und in unterschiedlichem zeitlichen Verlauf wider. Da es kein physikalisch-chemisches Modell dafür gibt, sind Alterungseffekte empirisch zu bestimmen. KW - Alterung KW - Polymerwerkstoff KW - Eigenschaftsänderung PY - 2012 U6 - https://doi.org/10.1002/nadc.201290356 SN - 1439-9598 SN - 1521-3854 VL - 60 IS - 10 SP - 1018 EP - 1022 PB - Wiley-VCH Verl. CY - Weinheim AN - OPUS4-26666 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Ünal, Murat A1 - Kühne, Hans-Carsten A1 - Ramge, Peter T1 - Untersuchungen zur Schadenssituation an Betonglasfenstern und Entwicklung von Betonersatzsystemen zur Instandsetzung T2 - 18. Ibausil - Internationale Baustofftagung CY - Weimar, Germany DA - 2012-09-12 PY - 2012 SN - 978-3-00-034075-8 VL - 2 IS - 3.07 SP - 904 EP - 911 AN - OPUS4-26668 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Rübner, Katrin A1 - Schnell, A. A1 - Haamkens, Frank A1 - Jakubcová, Petra A1 - Müller, A. T1 - Leichtbeton aus Aufbaukörnungen N2 - Neue leichte Gesteinskörnungen werden durch rohstoffliches Recycling aus heterogenem und feinkörnigem Mauerwerkbruch hergestellt. Die Erprobung dieser Aufbaukörnungen im Leichtbeton liefert Aussagen zu ihrer Qualität und Eignung. Nach einer kurzen Charakterisierung der für die Betonherstellung ausgewählten Aufbaukörnungen werden die entworfene Betonrezeptur vorgestellt und einige Ergebnisse der Festbetonuntersuchungen diskutiert.---------------------------------------------------------------------------------------------------------- New lightweight aggregates are produced by feedstock recycling from heterogeneous and fine-grained masonry rubble. Testing of these tailor-made expanded aggregates in lightweight concrete provides information about their quality and performance. Following a brief characterization of the tailor-made expanded aggregates used in concrete production, the concrete mix design is presented and some results of the tests of hardened concrete are discussed. KW - Blähgranulate KW - Expanded aggregates KW - Leichtbeton KW - Leichte Gesteinskörnung KW - Lightweight aggregates KW - Lightweight concrete KW - Masonry rubble KW - Mauerwerkbruch KW - Recycling PY - 2012 U6 - https://doi.org/10.1002/cite.201200068 SN - 0009-286X SN - 1522-2640 VL - 84 IS - 10 SP - 1792 EP - 1797 PB - Wiley-VCH Verl. CY - Weinheim AN - OPUS4-26669 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Malow, Marcus A1 - Rosenberg, Marika A1 - Michael-Schulz, Heike A1 - Wehrstedt, Klaus-Dieter T1 - Validation of the UN Test Method N.5 T2 - Mary Kay O`Connor Process Safety Center Symposium 2012 CY - College Station, TX, USA DA - 2012-10-23 PY - 2012 AN - OPUS4-26620 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Krischok, Frank T1 - Das ADN 2013 T2 - 23. Internationale Binnenschifffahrts-Gefahrgut-Tage CY - Hamburg, Germany DA - 2012-10-16 PY - 2012 AN - OPUS4-26621 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Fedelich, Bernard A1 - Epishin, A. A1 - Link, T. A1 - Svetlov, B. A1 - Golubovskiy, E.R. T1 - Joint scientific activities of TU Berlin, BAM Berlin, VIAM Moscow and CIAM Moscow in field of single crystal nickel-base superalloys T2 - New materials and technologies of deep processing of raw materials - basis of innovative economy development of Russia CY - Moscow, Russia DA - 2012-06-25 PY - 2012 AN - OPUS4-26622 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Fedelich, Bernard T1 - Advances and open issues about the microscopical and the macroscopical modeling of single crystal superalloys T2 - IUTAM (International Union of Theoretical and Applied Mechanics), Advanced Materials Modelling for Structures CY - Paris, France DA - 2012-04-23 PY - 2012 AN - OPUS4-26624 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Vöse, Markus A1 - Otto, F. A1 - Kianinejad, Kaveh A1 - Eggeler, G. A1 - Hartmeier, A. T1 - Modellierung des Kriechschädigungsverhaltens einer Kupfer-Antimon-Legierung durh ein mikromechanisches Polykristallmodell T2 - DGM Arbeitskreis Sitzung "Mechanisches Werkstoffverhalten bei hoher Temperatur" CY - Berlin, Germany DA - 2012-09-21 PY - 2012 AN - OPUS4-26625 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Plarre, Rüdiger T1 - Reaktion von Hausbockkäfern auf Bauholz unterschiedlicher Qualitäten im Labor und Freiland T2 - Deutsche Holzschutztagung CY - Göttingen, Germany DA - 2012-09-27 PY - 2012 AN - OPUS4-26626 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Kromm, Arne T1 - Innovatives Konzept zum Schweißen moderner Werkstoffe T2 - Sonderkolloquium des Adolf-Martens-Fonds e. V. aus Anlass der Verleihung des Promotionspreises 2011 CY - Berlin, Germany DA - 2012-10-04 PY - 2012 AN - OPUS4-26627 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Kromm, Arne A1 - Rhode, Michael A1 - Kannengießer, Thomas T1 - Influence of heat control on welding residual stresses in multi-layer component joints T2 - IIW Annual Assembly CY - Denver, CO, USA DA - 2012-07-09 PY - 2012 AN - OPUS4-26628 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Böhning, Martin A1 - Schönhals, Andreas A1 - Hao, Ning T1 - Correlation of gas diffusivity and local chain mobility in polycarbonate/POSS nanocomposites as determined by broadband dielectric relaxation spectroscopy T2 - Euromembrane 2012 CY - London, England DA - 2012-09-23 PY - 2012 AN - OPUS4-26629 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Apel, Andreas A1 - Ballheimer, Viktor A1 - Kuschke, Christian A1 - Schubert, Sven A1 - Wille, Frank T1 - Approach for the use of Acceleration Values for Packages of Radioactive Material under Routine Conditions of Transport T2 - Radioactive Materials Transport and Storage Conference 2012 (RAMtransport 2012) CY - London, England DA - 2012-05-22 PY - 2012 AN - OPUS4-26610 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Staude, Andreas A1 - Bartscher, M. A1 - Bremer, Holger A1 - Birth, Thomas A1 - Ehrig, Karsten T1 - The resolution of dimensional CT - an edge-based analysis T2 - Conference on Industrial Computed Tomography CY - Wels, Austria DA - 2012-09-19 PY - 2012 AN - OPUS4-26612 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Zscherpel, Uwe A1 - Ewert, Uwe A1 - Schmidt, Richard A1 - Heidt, Heinrich A1 - Beckmann, Jörg A1 - Bär, Sylke A1 - Strauch, Monika T1 - Zertifizierung von ZfP-Film- und digitaler Filmersatz-Systeme - Aktivitäten der BAM T2 - DACH Jahrestagung der DGZfP CY - Graz, Austria DA - 2012-09-17 PY - 2012 AN - OPUS4-26613 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Ewert, Uwe A1 - Gollwitzer, Christian A1 - Jechow, Mirko A1 - Zscherpel, Uwe T1 - Verbesserte Bildqualität durch Kalibrierung von digitalen Detektoren im Vergleich zur Film-Radiographie T2 - DACH Jahrestagung der DGZfP CY - Graz, Austria DA - 2012-09-17 PY - 2012 AN - OPUS4-26614 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Mishra, Kirti Bhushan A1 - Wehrstedt, Klaus-Dieter T1 - Applications of peroxy-fuels in vehicle propulsion T2 - COMBURA Symposium 2012 CY - Maastricht, Netherlands DA - 2012-10-03 PY - 2012 AN - OPUS4-26615 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Bavendiek, K. A1 - Heike, U. A1 - Ewert, Uwe A1 - Zscherpel, Uwe A1 - Riedo, Adrian T1 - Effektive Brennfleck-Größen von Röntgenrähren bestimmen - neue Verfahren, Änderungen der Normen T2 - DACH Jahrestagung der DGZfP CY - Graz, Austria DA - 2012-09-17 PY - 2012 AN - OPUS4-26616 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Gollwitzer, Christian A1 - Bellon, Carsten A1 - Deresch, Andreas A1 - Ewert, Uwe A1 - Jaenisch, Gerd-Rüdiger A1 - Zscherpel, Uwe A1 - Mistral, Ql T1 - New Requirements for Digital Radiographic Testing of Welds According to ISO Standards T2 - Review of Progress in Quantitative NDE, QNDE 2012 CY - Denver, CO, USA DA - 2012-07-15 PY - 2012 AN - OPUS4-26617 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Zscherpel, Uwe A1 - Ewert, Uwe A1 - Schmid, M. A1 - Spartiotis, Konstantinos A1 - Ajat, Oy A1 - Warrikhoff, A. T1 - X-ray Based Inspection of Tube-to-Tube Sheet Welding Joints T2 - "NDE of Welds" Short Course of the World Federation of NDE Centers CY - Denver, CO, USA DA - 2012-07-14 PY - 2012 AN - OPUS4-26618 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Kromm, Arne A1 - Brauser, Stephan A1 - Steppan, Enrico A1 - Kannengießer, Thomas A1 - Gibmeier, J. A1 - Rethmeier, Michael T1 - Capabilities of the Beamline EDDI in Welding Research T2 - BESSY II Beamline Evaluation CY - Berlin, Germany DA - 2012-09-27 PY - 2012 AN - OPUS4-26619 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Ewert, Uwe A1 - Zscherpel, Uwe A1 - Jechow, Mirko T1 - Essential Parameters and Conditions for Optimum Image Quality in Digital Radiology T2 - 18th World Conference on NDT (WCNDT 2012) CY - Durban, South Africa DA - 2012-04-16 PY - 2012 AN - OPUS4-26650 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Schneider, Rudolf A1 - Bahlmann, Arnold A1 - Krauss, M. A1 - Brack, W. T1 - Vorkommen und Abbauverhalten von Carbamazepin und seinen Metaboliten in Abwasser, Oberflächenwasser und Trinkwasser T2 - GDch/SETAC: Erkennen, Untersuchen, Modellieren - Vom Nutzen des Verstehens; Gemeinsame Jahrestagung von SETAC GLB (German Language Branch) und fachgruppe Umweltchemie und Ökotoxikologie der GDCh CY - Leipzig, Germany DA - 2012-09-10 PY - 2012 AN - OPUS4-26651 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Schneider, Rudolf A1 - Silva, C. P. A1 - Otero, M. A1 - Esteves, V. I. T1 - Application of an optimized ELISA assay in the assessment of 17?-estradiol levels in surface and waste waters from the Aveiro region T2 - 3rd Portuduese Young Chemists Meeting (3PYCheM) CY - Oporto, Portugal DA - 2012-11-09 PY - 2012 AN - OPUS4-26652 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Bavendiek, K. A1 - Ewert, Uwe A1 - Zscherpel, Uwe A1 - Riedo, Adrian A1 - Heike, U. T1 - New measurement methods of focal spot size and shape of X-ray tubes in digital radiological applications in comparison to current standards T2 - 18th World Conference on NDT (WCNDT 2012) CY - Durban, South Africa DA - 2012-04-16 PY - 2012 AN - OPUS4-26653 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Zscherpel, Uwe A1 - Ewert, Uwe A1 - Schmid, M. A1 - Rost, P. A1 - Spartiotis, Konstantinos A1 - Ajat, Oy A1 - Warrikhoff, A. T1 - X-ray Endoscopy for Inspection of Tube-to-Tube Sheet Welds in Heat Exchangers T2 - 18th World Conference on NDT (WCNDT 2012) CY - Durban, South Africa DA - 2012-04-16 PY - 2012 AN - OPUS4-26654 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Osterloh, Kurt A1 - Zscherpel, Uwe T1 - Ways of Digital Image Processing to Obtain Fast and Unbiased Results T2 - 18th World Conference on NDT (WCNDT 2012) CY - Durban, South Africa DA - 2012-04-16 PY - 2012 AN - OPUS4-26655 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Zscherpel, Uwe T1 - Digital Measurement of Dimensions T2 - WCNDT 2012- Pre- conference workshop on Advanced Digital Imaging CY - Durban, South Africa DA - 2012-04-14 PY - 2012 AN - OPUS4-26656 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Venkatraman, B. A1 - Zscherpel, Uwe A1 - Ewert, Uwe A1 - Menaka, M. T1 - Basics of Radiographic Testing and Image Processing T2 - WCNDT 2012- Pre- conference workshop on Advanced Digital Imaging CY - Durban, South Africa DA - 2012-04-14 PY - 2012 AN - OPUS4-26657 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Zscherpel, Uwe A1 - Ewert, Uwe T1 - Normen, Richtlinien und Messeprozeduren für die digitale Durchstrahlungsprüfung T2 - Seminar ''Industrielle Röntgentechnik als Zerstörungsfreie Prüfverfahren für die Qualitätssicherung in der Produktion'' der Fraunhofer-Allianz VISION CY - Fürth, Germany DA - 2012-03-28 PY - 2012 AN - OPUS4-26658 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Zscherpel, Uwe A1 - Jechow, Mirko A1 - Ewert, Uwe T1 - Essential Parameters of Image Quality in Digital Radiography and New Standardization Concepts T2 - ASNT Digital Imaging XIV CY - Ledyard, CT, USA DA - 2012-07-18 PY - 2012 AN - OPUS4-26659 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Weimann, Karin A1 - Schulz, T. A1 - Linß, E. A1 - Müller, A. T1 - Study on the Quantity of Gypsum in Construction & Demolition Waste (CDW) T2 - Third International Symposium on Life-Cycle Civil Engineering (IALCCE 2012) CY - Vienna, Austria DA - 2012-10-03 PY - 2012 AN - OPUS4-26590 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Isecke, Bernd T1 - Grundlagen der Korrosion und des Korrosionsschutzes T2 - Lehrgang Lacktechnologie Modul 5 CY - Krefeld, Germany DA - 2012-04-18 PY - 2012 AN - OPUS4-26591 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Isecke, Bernd T1 - Korrosionsuntersuchung und -prüfung metallischer Werkstoffe und Schutzverfahren T2 - Lehrgang Lacktechnologie Modul 5 CY - Krefeld, Germany DA - 2012-04-18 PY - 2012 AN - OPUS4-26592 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Isecke, Bernd T1 - Volks- und betriebswirtschaftliche Kosten der Korrosion T2 - Fachforum Metallkorrosion CY - Regensburg, Germany DA - 2012-04-23 PY - 2012 AN - OPUS4-26593 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Isecke, Bernd T1 - Grundlagen der Bimetallkorrosion T2 - Fachforum Metallkorrosion CY - Regensburg, Germany DA - 2012-04-23 PY - 2012 AN - OPUS4-26594 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Isecke, Bernd T1 - Grundlagen der Korrosion und des Korrosionsschutzes T2 - Fachforlum Metallkorrosion CY - Regensburg, Germany DA - 2012-04-23 PY - 2012 AN - OPUS4-26595 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Isecke, Bernd T1 - Zur Spannungsrisskorrosion vergüteter Spannstähle in älteren Spannbetonbauwerken T2 - Bundesministerium für Verkehr, Bau und Stadtentwicklung BMVBS CY - Bonn, Germany DA - 2012-07-22 PY - 2012 AN - OPUS4-26596 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Isecke, Bernd T1 - Laudatio Prof. Dr.-Ing. Michael Schütze zum 60. Geburtstag T2 - DECHEMA CY - Frankfurt am Main, Germany DA - 2012-10-26 PY - 2012 AN - OPUS4-26597 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Isecke, Bernd T1 - Grundlagen und Anwendungen des elektrochemischen Korrosionsschutzes T2 - DECHEMA Weiterbildungskurs "Korrosion und Korrosionsschutz" CY - Frankfurt am Main, Germany DA - 2012-12-07 PY - 2012 AN - OPUS4-26598 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Isecke, Bernd T1 - Corrosion and Protection of Prestressing steel in Sulfate Containing Alkaline Media T2 - Research Seminar University of Minnesota CY - Duluth, MIN, USA DA - 2012-06-18 PY - 2012 AN - OPUS4-26599 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Kuchenbecker, Petra A1 - Gemeinert, Marion A1 - Rabe, Torsten T1 - Inter-laboratory study of particle size distribution measurements by laser diffraction N2 - Presented are results of an inter-laboratory study (ILS) for measurements of the particle size distribution of fine powders in wet dispersion by laser diffraction. In this proficiency test 32 participants from four countries took part. They utilized 13 different devices from 7 manufacturers. Three commercial powders (glass spheres and two silicon carbide powders) showing a median diameter of about 30, 10 and 1 µm (volume distribution), respectively, were chosen for the procedure. A homogeneity study was carried out after the units had been separated and bottled. All participants received their test samples including a description of the standard operating procedures based on ISO 13320:2009 – to ensure that experiments were performed in a consistent manner. Results were calculated using the Mie Theory. The general means and the precision of the results were estimated in accordance with ISO 5725-2:2002. The evaluation showed excellent values of repeatability standard deviation. Values of 4 to 21?% of the reproducibility standard deviation of the results were found in the particle size range above 1 µm. Much larger deviation between the labs was detected in the case of smaller particles. Differences in the design of the analyzers were unambiguously identified as the main reason for the large deviations. KW - Accuracy experiment KW - Inter-laboratory study KW - Laser diffraction KW - Micron and submicron powder KW - Particle size distribution PY - 2012 U6 - https://doi.org/10.1002/ppsc.201000026 SN - 0934-0866 SN - 1521-4117 VL - 29 IS - 4 SP - 304 EP - 310 PB - Wiley-VCH Verl. CY - Weinheim AN - OPUS4-26721 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Kreutzbruck, Marc A1 - Neubauer, Andreas A1 - Pelkner, Matthias A1 - Reimund, Verena T1 - Adapted GMR Sensor Arrays used in Magnetic Flux Leakage Inspection T2 - 18th WCNDT 2012 (World Conference on Nondestructive Testing) CY - Durban, South Africa DA - 2012-04-16 PY - 2012 AN - OPUS4-26722 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Soulis, S. A1 - Triantou, D. A1 - Weidner, Steffen A1 - Falkenhagen, Jana A1 - Simitzis, J. T1 - Structural analysis of biodegradable low-molecular mass copolyesters based on glycolic acid, adipic acid and 1,4 butanediol and correlation with their hydrolytic degradation N2 - Copolyesters of glycolic acid combined with adipic acid and 1,4 butanediol were synthesized, their in vitro hydrolytic degradation was studied and correlated with their structure. The hydrolytic degradation of the copolyesters was directly related with the degree of crystallinity and the diameter of the crystallites. It was found that glycolate units disturb the ordering of the butylene adipate units, which results in a decrease of the crystallinity. By comparing the hydrolysis parameters of synthesized copolyesters with those of similar aliphatic copolyesters a hydrolysis mechanism was proposed. According to this mechanism, the degradation takes place not only by the loss of end units, but also through the removal of larger segments. MALDI-TOF MS data showed that the possibility of a copolyester macromolecule forming cyclic structures correlates with the arrangement of ester groups in the macromolecules and the structure of the linear segments. KW - Biodegradable KW - Biopolymers KW - Hydrolytic degradation KW - Ft-IR KW - Matrix-assisted laser desorption/ionization-time-of-flight-mass spectrometry KW - MALDI-TOF-MS PY - 2012 U6 - https://doi.org/10.1016/j.polymdegradstab.2012.09.002 SN - 0141-3910 SN - 1873-2321 VL - 97 IS - 11 SP - 2091 EP - 2103 PB - Applied Science Publ. CY - London AN - OPUS4-26723 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Schneider, Thomas A1 - Vierneusel, B. A1 - Gradt, Thomas A1 - Tremmel, S. A1 - Wartzack, S. A1 - Szücs, Z. A1 - Arendt, I. T1 - Optimierte MoS2-PVD-Schichten für wechselnde Umgebungsbedingungen T2 - 53. Tribologie-Fachtagung - Reibung, Schmierung und Verschleiß CY - Göttingen, Germany DA - 2012-09-24 PY - 2012 SN - 978-3-00-039201-6 SP - 46/1 EP - 46/12 CY - Aachen AN - OPUS4-26724 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Adam, Christian A1 - Krüger, Oliver T1 - Das Potential deutscher Klärschlammaschen für die Werkstoffrückgewinnung N2 - Über den derzeitigen und zukünftigen Umgang mit Klärschlamm wird in Deutschland seit Jahren kontrovers diskutiert. Zum einen enthalten kommunale Klärschlamme Nährstoffe, die sinnvoller Weise wieder in die landwirtschaftliche Nahrungsmittelproduktion eingebracht werden sollten. In diesem Zusammenhang steht Phosphor im Vordergrund, da diese Ressource begrenzt ist und deren zukünftig zu erwartende Knappheit neben der geringen Anzahl an Exportländern für Rohphosphate zu unberechenbaren Preissprüngen am Weltmarkt führen können. Zum anderen stellt Klärschlamm die Schadstoffsenke in der Abwasserreinigung dar, was den direkten landwirtschaftlichen Einsatz dieses Abfalls bedenklich macht. Zwar nahm die Konzentration der umweltrelevanten Schwermetalle in Klärschlämmen in den vergangenen Jahren deutlich ab (Wiechmann, Dienemann et al. 2012), die Belastung mit organischen Schadstoffen (z.B. Pharmazeutika, endokrin wirksame Substanzen, persistente organische Stoffe etc.) ist jedoch unüberschaubar und dürfte sich einem sinnvollen „Monitoring“ weitgehend entziehen. Das daraus resultierende Risiko für Mensch und Umwelt ist schwer einschätzbar und wird aufgrund der Beschaffenheit der diffusen Schadstoffquellen (z.B. Eintrag von Pharmaka und deren Metabolite über menschliche Ausscheidungen) unkalkulierbar bleiben. T2 - 3. VDI-Fachkonferenz - Klärschlammbehandlung CY - Berlin, Germany DA - 26.09.2012 KW - Klärschlammasche KW - Phosphorrückgewinnung KW - Technologiemetalle PY - 2012 SN - 978-3-942980-87-6 SP - 11 EP - 18 CY - Düsseldorf AN - OPUS4-26725 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Beck, Uwe A1 - Hertwig, Andreas A1 - Stephanowitz, Ralph A1 - Weise, Matthias A1 - Hönig, D. A1 - Schneider, S. A1 - Domnick, R. A1 - Belzner, M. T1 - Elliptometrisch codierbare Schichtsysteme für den Dokumenten-, Produkt- und Markenschutz T2 - Kompetenznetz INPLAS, eingeladener Vortrag CY - Berlin, Germany DA - 2012-10-23 PY - 2012 AN - OPUS4-26726 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Rietz, U. A1 - Beck, Uwe A1 - Hielscher, Stefan A1 - Lerche, D. T1 - LUMiFrac - a new centrifuge-based approached for testing of BONDING and ADHESIVE STRENGTH T2 - EURADH 2012, Friedrichshafen CY - Berlin, Germany DA - 2012-09-16 PY - 2012 AN - OPUS4-26727 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Schmidt, Wolfram A1 - Priebe, Nsesheye Susan A1 - Kühne, Hans-Carsten T1 - The African-European SPIN Network - Linking Experts to Foster Innovation in Cement and Concrete T2 - Workshop Cement and Concrete Technology at the University of the Witwaterand CY - Johannesburg, South Africa DA - 2012-09-07 PY - 2012 N1 - Geburtsname von Priebe, Nsesheye Susan: Msinjili, N. S. - Birth name of Priebe, Nsesheye Susan: Msinjili, N. S. AN - OPUS4-26728 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Schmidt, Wolfram A1 - Kühne, Hans-Carsten A1 - Meng, Birgit A1 - Brouwers, H.J.H. T1 - Zum Einfluss der Menge und Modifikation des Fließmittels auf das Erstarren, die Wärmeentwicklung und die frühen Verformungen von Bindemittelleimen T2 - 18. Internationale Baustofftagung CY - Weimar, Germany DA - 2012-09-12 PY - 2012 AN - OPUS4-26729 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Linke, S. A1 - Kühn, Julius A1 - Nörthemann, K. A1 - Unger, Wolfgang A1 - Moritz, W. T1 - Sensor High throuhput screening using photocurrent measurments in silicon T2 - Eurosensors 2012 CY - Kraków, Poland DA - 2012-09-09 PY - 2012 AN - OPUS4-26730 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Mizuno, Y. A1 - Lenke, Peter A1 - Krebber, Katerina A1 - Nakamura, K. T1 - Brillouin gain spectrum characterization in POF fabricated by different manufacturers at 1.32 and 1.55 um T2 - POF 2012 - 21st International conference on plastic optical fibers CY - Atlanta, Georgia, USA DA - 2012-09-10 KW - Brillouin scattering KW - Perfluorinated graded-index polymer optical fiber KW - Optical time-domain reflectometry KW - Nonlinear optics PY - 2012 SP - 96 EP - 99 AN - OPUS4-26742 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Wendt, Mario A1 - Krebber, Katerina T1 - Using optical POF switches for distributed fiber optical strain measurements T2 - POF 2012 - 21st International conference on plastic optical fibers CY - Atlanta, Georgia, USA DA - 2012-09-10 KW - Distributed strain sensors KW - Optical switch KW - OTDR PY - 2012 SP - 133 EP - 136 AN - OPUS4-26743 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Gümpel, P. A1 - Leu, F. A1 - Burkert, Andreas A1 - Lehmann, Jens A1 - Burkert, Annette T1 - Korrosionsbeständigkeit von Alternativwerkstoffen zu den klassischen nichtrostenden, austenitischen Stählen N2 - In einer umfangreichen Untersuchung konnte gezeigt werden, dass es aus korrosionstechnischer Sicht sehr gute, schwächer legierte Alternativwerkstoffe zu den heute überwiegend eingesetzten nichtrostenden CrNi- und CrNiMo-Stählen gibt und dass sich hierdurch ein wirtschaftlicher Vorteil generieren lässt. KW - Korrosion KW - Duplexstahl KW - Ferritischer Stahl PY - 2012 SN - 1432-9174 VL - 39 IS - März SP - 12 EP - 19 PB - Koordinierungsstelle CY - Mannheim AN - OPUS4-26744 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Lohse, Volkmar A1 - Negendank, Detlef A1 - Buschbeck, Gerd A1 - Bethge, Jörg T1 - Prüfung der Funktion von CO-Gaswarngeräten zur Verwendung in Wohnhäusern (privaten Haushalten) T2 - Marktüberwachung - Bewertung der Funktion von CO-Brandmeldern CY - Nuremberg, Germany DA - 2012-10-16 PY - 2012 AN - OPUS4-26745 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Binder, Christian T1 - Sauerstoffarmaturen - Einmal ausbrennsicher, immer ausbrennsicher? T2 - IGV/EIGA-Sicherheitstagung CY - Cologne, Germany DA - 2012-10-17 PY - 2012 AN - OPUS4-26746 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Apel, Andreas A1 - Ballheimer, Viktor A1 - Kuschke, Christian A1 - Schubert, Sven A1 - Wille, Frank T1 - Approach for the use of acceleration values for packages of radioactive material under routine conditions of transport N2 - The most relevant source of reference for load cases of packages for the transport of radioactive material under routine conditions is Appendix IV of the International Atomic Energy Agency (IAEA) Advisory Material TS-G-1·1. The acceleration values given there leave many questions open and have to be agreed upon with the involved competent authorities. Consequently, the actual load cases applied for a safety analysis may differ widely and could cause problems for international transport. To avoid such difficulties, it seems obvious that the according passages in TS-G-1·1 should be modified with the objective of making the load case data more consistent for a harmonized application in the IAEA member states. Papers pointing out in this direction were discussed at the PATRAM 2010 conference. The way to improve the acceleration data may lie in investigations and measurements considering, for example different types of vehicles and package masses. However, what should be the goal of such kind of surveys? Can such investigation provide values for every worldwide load case possible under routine conditions of transport? In particular, the different designs of vehicles give a reason to doubt that such an aim is realistic. The approach in this paper is to show that a less ambitious aim is more effective. Therefore, an approximate scheme is preferred, which renders better assistance in determining the appropriate acceleration values. T2 - RAMTRANSPORT 2012 - 9th International Conference on the Radioactive Materials Transport and Storage CY - London, UK DA - 22.05.2012 KW - Radioactive materials KW - Safety assessment KW - IAEA regulations KW - Lost cases KW - Routine conditions of transport PY - 2012 SP - 1 EP - 8 AN - OPUS4-26747 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Döring, Ingo T1 - Heftige Reaktionen vermeiden - Vorschriften - Für Lagerung und Transport von Lithiumbatterien gelten unterschiedliche Vorschriften. Die Beförderung beschädigter Batterien ist noch verboten. KW - Gefahrgut KW - Lithiumbatterien PY - 2012 SN - 0944-6117 VL - 9 SP - 30 EP - 31 PB - Vogel CY - München AN - OPUS4-26748 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Hodoroaba, Vasile-Dan A1 - Benemann, Sigrid A1 - Motzkus, C. A1 - Macé, T. A1 - Palmas, P. A1 - Vaslin-Reimann, S. T1 - Advanced analysis of spherical SiO2 aerosol nanoparticles with a high-resolution SEM KW - Spherical nanoparticles KW - SiO2 KW - SEM KW - Transmission-SEM KW - VAMAS PY - 2012 U6 - https://doi.org/10.1017/S1431927612010604 SN - 1431-9276 SN - 1435-8115 VL - 18 IS - Suppl. 2 SP - 1750 EP - 1751 PB - Cambridge University Press CY - New York, NY AN - OPUS4-26749 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Trappe, Volker T1 - Testing of lightweight composite structures - from complex component setup to micro-mechanical analysis T2 - Vortragseinladung des Centro de Investigatión Cientifica de Yucatán CY - Mérida, Mexico DA - 2012-10-04 PY - 2012 AN - OPUS4-26692 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Rabe, Frederik A1 - Knaust, Christian A1 - Thöns, Sebastian T1 - Numerische Berechnung von Bränden in Tunneln mit CFD - Toxizität und Lichtschwächung von Brandrauch - T2 - 127. Versammlung der GDNÄ CY - Göttingen, Germany DA - 2012-09-14 PY - 2012 AN - OPUS4-26694 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Krüger, Oliver T1 - Resource Recovery Potential from Seage Sludge Ashes T2 - 3rd Hazardous and Industrial Waste Management Conference CY - Chania, Greece DA - 2012-09-11 PY - 2012 AN - OPUS4-26695 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Gollwitzer, Christian A1 - Bellon, Carsten A1 - Deresch, Andreas A1 - Ewert, Uwe A1 - Jaenisch, Gerd-Rüdiger A1 - Zscherpel, Uwe A1 - Mistral, Q. ED - Thompson, D. O. ED - Chimenti, D. E. T1 - Simulation supported POD for RT test case - concept and modeling N2 - Within the framework of the European project PICASSO, the radiographic simulator aRTist (analytical Radiographic Testing inspection simulation tool) developed by BAM has been extended for reliability assessment of film and digital radiography. NDT of safety relevant components of aerospace industry requires the proof of probability of detection (POD) of the inspection. Modeling tools can reduce the expense of such extended, time consuming NDT trials, if the result of simulation fits to the experiment. Our analytic simulation tool consists of three modules for the description of the radiation source, the interaction of radiation with test pieces and flaws, and the detection process with special focus on film and digital industrial radiography. It features high processing speed with near–interactive frame rates and a high level of realism. A concept has been developed as well as a software extension for reliability investigations, completed by a user interface for planning automatic simulations with varying parameters and defects. Furthermore, an automatic image analysis procedure is included to evaluate the defect visibility. The radiographic modeling from 3D CAD of aero engine components and quality test samples are compared as a precondition for real trials. This enables the evaluation and optimization of film replacement for application of modern digital equipment for economical NDT and defined POD. T2 - 38th Annual Review of Progress in Quantitative Nondestructive Evaluation CY - Burlington, VT, USA DA - 2011-07-17 KW - X-ray imaging KW - Probability of detection KW - Simulation KW - ZfP KW - Radiographie KW - POD PY - 2012 SN - 978-0-7354-1013-8 U6 - https://doi.org/10.1063/1.4716283 SN - 0743-0760 SN - 0094-243X N1 - Serientitel: AIP conference proceedings – Series title: AIP conference proceedings VL - 31 IS - 1430 SP - 605 EP - 612 PB - American Institute of Physics CY - Melville, NY AN - OPUS4-26696 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Zscherpel, Uwe A1 - Ewert, Uwe A1 - Jechow, Mirko ED - Thompson, D. O. ED - Chimenti, D. E. T1 - Concepts for evaluation of image quality in digital radiology N2 - Concepts for digital image evaluation are presented for Computed Radiography (CR) and Digital Detector Arrays (DDAs) used for weld inspection. The precise DDA calibration yields an extra ordinary increase of contrast sensitivity up to 10 times in relation to film radiography. Restrictions in spatial resolution caused by pixel size of the DDA are compensated by increased contrast sensitivity. First CR standards were published in 2005 to support the application of phosphor imaging plates in lieu of X-ray film, but they need already a revision based on experiences reported by many users. One of the key concepts is the usage of signal-to-noise (SNR) measurements as equivalent to the optical density of film and film system class. The contrast sensitivity, measured by IQI visibility, depends on three essential parameters: The basic spatial resolution (SRb) of the radiographic image, the achieved signal-to-noise ratio (SNR) and the specific contrast (µeff - effective attenuation coefficient). Knowing these 3 parameters for the given exposure condition, inspected material and monitor viewing condition permits the calculation of the just visible IQI element. Furthermore, this enables the optimization of exposure conditions. The new ISO/FDIS 17636-2 describes the practice for digital radiography with CR and DDAs. It considers the first time compensation principles, derived from the three essential parameters. The consequences are described. T2 - 38th Annual Review of Progress in Quantitative Nondestructive Evaluation CY - Burlington, VT, USA DA - 2011-07-17 KW - Image resolution KW - Inspection KW - Production engineering computing KW - Radiography KW - Welding KW - X-ray imaging KW - ZfP KW - Radiographie KW - Bildqualität KW - Filmersatz KW - Digitale Detektoren PY - 2012 SN - 978-0-7354-1013-8 U6 - https://doi.org/10.1063/1.4716281 SN - 0743-0760 SN - 0094-243X N1 - Serientitel: AIP conference proceedings – Series title: AIP conference proceedings IS - 1430 SP - 589 EP - 596 PB - American Institute of Physics CY - Melville, NY AN - OPUS4-26697 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - LaCivita, K. A1 - Ewert, Uwe T1 - ÊPS-approach -Equivalent penetrameter sensitivity as applied to computed radiography KW - ZfP KW - Radiographie KW - Bildqualität KW - Speicherfolien PY - 2012 SN - 0025-5327 VL - 70 IS - 8 SP - 925 EP - 930 PB - Society for Nondestructive Testing CY - Columbus, Ohio AN - OPUS4-26698 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Ewert, Uwe A1 - Zscherpel, Uwe A1 - Heyne, Klara A1 - Jechow, Mirko A1 - Bavendiek, K. T1 - Image quality in digital industrial radiography KW - ZfP KW - Radiographie KW - Bildqualität KW - Digitale Detektoren PY - 2012 SN - 0025-5327 VL - 70 IS - 8 SP - 955 EP - 964 PB - Society for Nondestructive Testing CY - Columbus, Ohio AN - OPUS4-26699 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Bavendiek, K. A1 - Heike, U. A1 - Kosanetzky, J.M. A1 - Ewert, Uwe A1 - Zscherpel, Uwe T1 - Best energy selection for different applications with digital detector arrays from 20 to 600 keV KW - ZfP KW - Radiographie KW - Bildqualität KW - Digitale Detektoren PY - 2012 SN - 0025-5327 VL - 70 IS - 8 SP - 965 EP - 974 PB - Society for Nondestructive Testing CY - Columbus, Ohio AN - OPUS4-26700 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Krüger, Simone A1 - Raspe, Tina A1 - Deubel, Jan T1 - Was ist eigentlich Rauch? Grundlagen zur Brandrauchzusammensetzung, Rauchentwicklung, Rauchgasanalytik und Rauchgastoxizität T2 - Prüfsachverständigentag 2012 CY - Kleinmachnow, Germany DA - 2012-09-28 PY - 2012 AN - OPUS4-26680 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Krüger, Simone A1 - Raspe, Tina A1 - Deubel, Jan A1 - Piechotta, Christian A1 - Fettig, Ina T1 - Chemische Brandspurenanalytik in der BAM T2 - Arbeitstagung Brandspurenanalytik 2012 CY - Bautzen, Germany DA - 2012-10-01 PY - 2012 AN - OPUS4-26681 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Würsig, Andreas A1 - Otremba, Frank T1 - Tankzulassung im Wandel T2 - IAA Gefahrgutsymposium CY - Hanover, Germany DA - 2012-09-24 PY - 2012 AN - OPUS4-26682 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Weltschev, Margit A1 - Werner, Jan A1 - Brandt, S. T1 - Compatibility of high density polyethylene grades with bioehanol-gasoline blends and biodiesel T2 - EUROCORR CY - Istanbul, Turkey DA - 2012-09-09 PY - 2012 AN - OPUS4-26683 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Reich, Franziska A1 - Otremba, Frank A1 - Jochems, Frank T1 - Drittmittelgeförderte Forschungsvorhaben in 3.2 T2 - IAA Gefahrgutsymposium CY - Hanover, Germany DA - 2012-09-24 PY - 2012 AN - OPUS4-26684 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Scholz, Christian A1 - Tamura, T. A1 - Hosohata, S. A1 - Nakase, T. A1 - Kato, S. A1 - Woydt, Mathias T1 - Null-Verschleiß an Hochleistungs-DLC-Schichten T2 - 53. Tribologie-Fachtagung - Reibung, Schmierung und Verschleiß CY - Göttingen, Germany DA - 2012-09-24 KW - Null-Verschleiß KW - DLC KW - Extrembeanspruchung KW - Dünnschichten PY - 2012 SN - 978-3-00-039201-6 SP - 44/1 EP - 44/15 CY - Aachen AN - OPUS4-26686 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Plarre, Rüdiger ED - Militz, H. T1 - Reaktion von Hausbockkäfern auf Bauholz unterschiedlicher Qualitäten im Labor und Freiland T2 - Deutsche Holzschutztagung 2012 - Trends und Chancen CY - Göttingen, Germany DA - 2012-09-27 KW - Holzschutz KW - Verhalten KW - Regelsetzung PY - 2012 SN - 978-3-95404-185-5 SP - 36 EP - 45 PB - Cuvillier AN - OPUS4-26687 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Trappe, Volker A1 - Günzel, Stephan A1 - Goebbels, Jürgen T1 - Zerstörungsfreie Charakterisierung des Schädigungszustandes von kurzglasfaserverstärkten Thermoplasten mit Röntgenverfahren T2 - DACH-Tagung CY - Graz, Austria DA - 2012-09-16 PY - 2012 AN - OPUS4-26689 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Trappe, Volker A1 - Günzel, Stephan A1 - Goebbels, Jürgen T1 - MODELLING THE DAMAGE BEHAVIOUR OF SHORT FIBRE REINFORCED COMPOSITES USING A NON-DESTRUCTIVELY EVALUATED FIBRE ORIENTATION DISTRIBUTION AND MICRO CRACKING T2 - ECCM-15 CY - Venice, Italy DA - 2012-06-24 PY - 2012 AN - OPUS4-26690 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Rackwitz, Vanessa A1 - Hodoroaba, Vasile-Dan T1 - An attempt of exploiting the compton-to-rayleigh intensity ratio for improved analysis with muXRF at a SEM KW - X-ray scattering KW - Compton scattering KW - Rayleigh scattering KW - XRF PY - 2012 U6 - https://doi.org/10.1017/S1431927612006678 SN - 1431-9276 SN - 1435-8115 VL - 18 IS - Suppl. 2 SP - 964 EP - 965 PB - Cambridge University Press CY - New York, NY AN - OPUS4-26753 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Hodoroaba, Vasile-Dan A1 - Rackwitz, Vanessa T1 - Prediction of detection limits of micro X-ray fluorescence (muXRF) KW - X-ray scattering KW - Limits of detection KW - Peak-to-background KW - Peak-to-noise KW - XRF KW - Modelling PY - 2012 U6 - https://doi.org/10.1017/S1431927612006563 SN - 1431-9276 SN - 1435-8115 VL - 18 IS - Suppl. 2 SP - 942 EP - 943 PB - Cambridge University Press CY - New York, NY AN - OPUS4-26754 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Heyn, Andreas T1 - Elektrochemische Methoden in der Korrosionsforschung im Bereich Automotive T2 - Forschungsseminar Automotive, Otto-von-Guericke-Universität CY - Magdeburg, Germany DA - 2012-10-17 PY - 2012 AN - OPUS4-26755 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Kreutzbruck, Marc A1 - Daschewski, Maxim A1 - Prager, Jens T1 - A Resonance-Free Nanofilm Airborne Ultrasound Emitter N2 - In recent years the demand for airborne ultrasound techniques for non-destructive materials testing has increased remarkably. The applications for non-contact airborne ultrasound techniques are very broad and range from detection of flaws in composite laminates, solar cells and printed circuit boards to the applications in medicine and food industry. Conventional piezoelectric ultrasound transducers are mostly narrowbanded, show large resonance oscillations after a short excitation and therefore are generally not suitable for pulse-echo applications. In this contribution we present a novel thermoacoustic approach for the generation of broad band airborne ultrasound and investigate the applicability of resonance-free thermoacoustic emitters for very short high pressure airborne ultrasound pulses. We report on measurements of thermoacoustic emitters consisting of metal film below 50 nm thickness, generating sound pressure values of more than 140 dB in 60 mm distance and compare the results with piezoelectric airborne ultrasound transducers. Our experimental investigations show that such thermoacoustic devices can be used as a broad band emitters using pulse excitation. T2 - QNDE Conference 2012 CY - Denver, CO, USA DA - 2012-07-15 PY - 2012 AN - OPUS4-26756 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Kreutzbruck, Marc T1 - Ultrasound and Thermographic Imaging for Weld Inspection T2 - NDE of Welds Short Course CY - Denver, CO, USA DA - 2012-07-14 PY - 2012 AN - OPUS4-26757 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Gaal, Mate A1 - Döring, Joachim A1 - Bartusch, Jürgen A1 - Lange, Thorid A1 - Hillger, W. A1 - Brekow, Gerhard A1 - Kreutzbruck, Marc T1 - Ferroelectret transducers for air-coupled ultrasonic testing of fiber-reinforced polymers T2 - QNDE-Review of Progress in Quantitative Nondestructive Evaluation, 2012 CY - Denver, CO, USA DA - 2012-07-15 PY - 2012 AN - OPUS4-26758 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Prager, Jens A1 - Gravenkamp, Hauke A1 - Song, C. T1 - Numerical simulation of ultrasonic guided waves using the Scaled Boundary Finite Element Method (SBFEM) T2 - 2012 IEEE International Ultrasonic Symposium CY - Dresden, Germany DA - 2012-10-07 PY - 2012 AN - OPUS4-26759 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Daschewski, Maxim T1 - METALLIC NANOFILM AS RESONANCE-FREE AIRBORNE ULTRASOUND EMITTER T2 - International Ultrasonic Symposium IEEE 2012 CY - Dresden, Germany DA - 2012-10-07 PY - 2012 AN - OPUS4-26760 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Schmidt, Wolfram T1 - Self-Compacting Concrete - A Solution to Improve the Fresh Concrete and Mortar Performance for the Challenging Casting Environments of Sub-Saharan Africa T2 - Workshop Cement and Concrete Technology at the University of the Witwatersrand CY - Johannesburg, South Africa DA - 2012-09-07 PY - 2012 AN - OPUS4-26731 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Schmidt, Wolfram A1 - Priebe, Nsesheye Susan A1 - Kühne, Hans-Carsten A1 - Kumaran, G.S. A1 - Florea, M. A1 - Nibasumba, P. T1 - Robustness Improvement of Fresh Concrete and Mortar Performance for Challenging Casting Environments with Focus on Sub-Saharan Africa T2 - 3rd International Conference on Concrete Repair, Rehabilitation and Retrofitting CY - Cape Town, South Africa DA - 2012-09-03 PY - 2012 N1 - Geburtsname von Priebe, Nsesheye Susan: Msinjili, N. S. - Birth name of Priebe, Nsesheye Susan: Msinjili, N. S. AN - OPUS4-26732 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Kloß, Heinz A1 - Österle, Werner T1 - Charakterisierung des mechanischen Reibungs- und Verschleißverhaltens von Werkstoffen mittels Simulationsrechnungen (Methode der beweglichen zellularen Automaten) und analytischer Modelle T2 - 53. Tribologie-Fachtagung - Reibung, Schmierung und Verschleiß CY - Göttingen, Germany DA - 2012-09-24 PY - 2012 SN - 978-3-00-039201-6 VL - II SP - 4/1 EP - 4/11 CY - Aachen AN - OPUS4-26733 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Kovalev, Alexander A1 - Sturm, Heinz T1 - In situ direct observation of adsorption and desorption on a single crystal of 2,4,6-trinitrophenol (TNP) N2 - For the first time, we report the direct observation of the nanoscale adsorption and desorption of 2,4,6-trinitrophenol (TNP) molecules on the crystal surface during atomic force microscopy scanning. Our results reveal the position instability of TNP molecules at the border of molecular layers under normal ambient conditions. The observed phenomena are of great interest for exploring the origin of hot-spot generation on the surface of energetic materials. On the basis of the explored properties of TNP crystal, a plausible mechanism of hot-spot formation upon weak initiation at the nanoscale is proposed. KW - Nanoscale adsorption and desorption KW - 2,4,6-trinitrophenol (TNP) KW - Instability of TNP KW - Mechanism of hot-spot formation PY - 2012 U6 - https://doi.org/10.1021/cg300366m SN - 1528-7483 VL - 12 IS - 7 SP - 3557 EP - 3564 PB - American Chemical Society CY - Washington, DC, USA AN - OPUS4-26734 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Lorenzetti, A. A1 - Modesti, M. A1 - Gallo, Emanuela A1 - Schartel, Bernhard A1 - Besco, S. A1 - Roso, M. T1 - Synthesis of phosphinated polyurethane foams with improved fire behaviour N2 - Both alkylphosphinates and inorganic phosphinates (based on sodium, calcium, magnesium or zinc) have been recently proposed as flame retardants for polyesters, polyamides and polyurethane foams as well. The main aim of this work was to compare the flame retardant effectiveness of inorganic (already proofed in PU foams) and organic phosphinates in PU foams which have never been used in polyurethane (PU) foams. The thermal stability in nitrogen and air as well as limiting oxygen index and cone calorimeter behaviour have been studied to assess the effectiveness of such flame retardants in PU foams. The results obtained showed that both inorganic and organic phosphinates are effective in enhancing fire behaviour of PU foams since they improve thermal stability, LOI and fire performance. Cone calorimetry highlighted the flame inhibition action in the gas phase due to the release of phosphorus-containing molecules. The better results obtained for inorganic phosphinate are probably related to the better quality of the char layer developed during burning, but may also be related to the higher phosphorus content of such flame retardant with respect the other ones. It was also verified that both inorganic and organic phosphinate containing N-synergic compound showed a fuel dilution effect, deriving from water and/or ammonia release in the gas phase. KW - Phosphinate KW - Polyurethane foam KW - Flame retardancy KW - Fire behaviour PY - 2012 U6 - https://doi.org/10.1016/j.polymdegradstab.2012.07.026 SN - 0141-3910 SN - 1873-2321 VL - 97 IS - 11 SP - 2364 EP - 2369 PB - Applied Science Publ. CY - London AN - OPUS4-26735 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Schalau, Bernd A1 - Rauchegger, Christian A1 - Schmidt, Dirk A1 - Thévenin, D. T1 - Einfluss der Quellhöhe auf die Ausbreitung schwerer Gase N2 - Im Rahmen von Störfallauswirkungsbetrachtungen werden oft Szenarien betrachtet, in denen Gase freigesetzt werden, die schwerer als Luft sind. Für die Berechnung der Gefährdungsbereiche wird in Deutschland oft die Richtlinie VDI 3783 eingesetzt. Die Methodik zur Bestimmung der Konzentrationsverteilung bei der Freisetzung eines Schwergases ist im Blatt 2 der Richtlinie dargestellt und basiert auf Windkanaluntersuchungen mit verschiedenen Ausbreitungsgebieten. Unter der Zielsetzung, eine möglichst konservative Abschätzung des Gefährdungsbereichs zu erhalten, erfolgte die Gasfreisetzung am Boden. In der Praxis sind aber immer wieder Szenarien zu untersuchen, bei denen die Gasfreisetzung aus Anlagenteilen über Bodenniveau erfolgt. Durch Freilandversuche sollen Anhaltswerte für die Bestimmung einer kritischen Quellhöhe, ab der eine Schwergasausbreitung nicht mehr zu betrachten ist, ermittelt werden. KW - Schwergas KW - VDI-Richtlinie 3783 KW - Gasausbreitung KW - Ausbreitungsmodelle KW - Störfallauswirkungsbetrachtungen PY - 2012 SN - 2191-0073 VL - 2 IS - 10 SP - 35 EP - 37 PB - Springer-VDI-Verl. CY - Düsseldorf AN - OPUS4-26736 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Harrer, Andrea A1 - Daschewski, Maxim A1 - Prager, Jens A1 - Kreutzbruck, Marc A1 - Guderian, Matthias A1 - Meyer-Plath, Asmus T1 - Thermoacoustic generation of airborne ultrasound using carbon materials at the micro- and nanoscale N2 - The generation of airborne ultrasound is presented using the thermoacoustic principle applied to carbon materials at the micro- and nanoscale. Such materials are shown to be capable of emitting ultrasound when being fed by an alternating current. We tested the acoustic performance of carbon fibers, bucky papers and electrospun polyacrylonitrile-derived carbon nanofibers and determined the sound pressure for frequencies up to 350 kHz. A comparison between the experimental results and the theoretical prediction showed remarkable agreement for frequencies up to 150 kHz. Beyond 150 kHz, we found slight deviations from the expected sound pressure dependence on the square root of the frequency. KW - Thermoacoustic KW - Airborne ultrasound transducer KW - Sound pressure PY - 2012 U6 - https://doi.org/10.3233/JAE-2012-1440 SN - 1383-5416 SN - 0925-2096 VL - 39 IS - 1-4 SP - 35 EP - 41 PB - IOS Press CY - Amsterdam, The Netherlands AN - OPUS4-26737 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Cuéllar, Pablo A1 - Baeßler, Matthias A1 - Rücker, Werner T1 - Pore-pressure accumulation and soil softening around pile foundations for offshore wind turbines T2 - OMAE 2012 - 31st International conference on ocean, offshore and artic engineering CY - Rio de Janeiro, Brazil DA - 2012-07-01 KW - Offshore pile foundation KW - Cyclic loading KW - Coupled numerical modelling KW - Pore-pressure accumulation KW - Softening KW - Liquefaction PY - 2012 SN - 978-0-7918-4491-5 VL - 4 SP - 219 EP - 228 PB - ASME CY - New York, N.Y. AN - OPUS4-26738 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Kühn, Andreas A1 - Richter, Silke A1 - Heinrich, Hans-Joachim T1 - Graphit - Ein Fall für die TXRF!?! T2 - 6.Magdeburger TXRF-Workshop CY - Magdeburg, Germany DA - 2012-09-11 PY - 2012 AN - OPUS4-26739 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Richter, S. A1 - Poppenberg, J. A1 - Traulsen, C.H.-H. A1 - Darlatt, Erik A1 - Sokolowski, A. A1 - Sattler, D. A1 - Unger, Wolfgang A1 - Schalley, C.A. T1 - Deposition of ordered layers of tetralactam macrocycles and ether rotaxanes on pyridine-terminated self-assembled monolayers on gold N2 - The deposition of tetralactam macrocycles and the corresponding benzyl ether rotaxanes on gold substrates is investigated for the first time exploiting metallo-supramolecular chemistry. Two pyridine-terminated self-assembled monolayers (SAMs) are developed that are used as well-ordered template layers. The two SAMs differ with respect to the rigidity of the terminal pyridines as shown by angle-resolved near-edge X-ray absorption fine structure (NEXAFS) spectroscopy. The template layers are then used for the metal-mediated self-assembly of macrocylces and rotaxanes on solid supports. The SAM with the more rigid terminal pyridine shows a higher coverage with the macrocycles and is therefore preferable. Angle-resolved NEXAFS spectroscopy also shows the deposited supramolecules to be oriented preferentially upright. This order is only achieved for the macrocycles through the deposition on the more rigid SAM template, whereas rotaxanes form oriented layers on both SAMs. Time-of-flight secondary-ion mass spectrometry analysis was used to determine the deposition time required for the self-assembly process. PY - 2012 U6 - https://doi.org/10.1021/ja306212m SN - 0002-7863 SN - 1520-5126 VL - 134 IS - 39 SP - 16289 EP - 16297 PB - American Chemical Society CY - Washington, DC AN - OPUS4-26740 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Völz, Uwe T1 - Four-Dimensional Directivity Pattern for Fast Calculation of the Sound Field of Phased Array Transducer T2 - IEEE International Ultrasonics Symposium CY - Dresden, Germany DA - 2012-10-07 PY - 2012 AN - OPUS4-26761 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Höhne, Christian A1 - Boehm, Rainer A1 - Prager, Jens T1 - Detektion der Einhüllenden in SAFT-Daten durch Anwendung multidimensionaler analytischer Signale mit single-orthant-Spektren T2 - DACH - Jahrestagung 2012 CY - Graz, Austria DA - 2012-09-17 PY - 2012 AN - OPUS4-26762 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Ziegler, Mathias A1 - Schlichting, Joachim A1 - Maierhofer, Christiane A1 - Kreutzbruck, Marc T1 - Flying laser spot thermography for the fast detection of surface breaking cracks T2 - 18th WCNDT - World conference on nondestructive testing CY - Durban, South Africa DA - 2012-04-16 PY - 2012 AN - OPUS4-26763 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Ziegler, Mathias A1 - Schlichting, Joachim A1 - Myrach, Philipp A1 - Maierhofer, Christiane A1 - Kreutzbruck, Marc T1 - Fast Detection of Surface Cracks Using Flying Laser Spot Thermography T2 - Review of Progress in Quantitative NDE CY - Denver, CO, USA DA - 2012-07-15 PY - 2012 AN - OPUS4-26764 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Ziegler, Mathias A1 - Steinfurth, Henrik A1 - Maierhofer, Christiane T1 - Hochleistungs-LED für die zerstörungsfreie thermografische Prüfung T2 - DACH Jahrestagung 2012 CY - Graz, Austria DA - 2012-09-17 PY - 2012 AN - OPUS4-26765 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Ziegler, Mathias A1 - Schlichting, Joachim A1 - Myrach, Philipp A1 - Maierhofer, Christiane A1 - Kreutzbruck, Marc T1 - Risserkennung an metallischen Oberflächen mit Flying-spot Laser-Thermografie T2 - DACH Jahrestagung 2012 CY - Graz, Austria DA - 2012-09-17 PY - 2012 AN - OPUS4-26766 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Boehm, Rainer A1 - Brackrock, Daniel A1 - Montag, Hans-Joachim A1 - Brekow, Gerhard T1 - Matrixarrays zur bildgebenden Ultraschallprüfung am Beispiel 6 mm dicker CFK-Platten T2 - DACH - Tagung in Graz, Sept. 2012 CY - Graz, Austria DA - 2012-09-17 PY - 2012 AN - OPUS4-26767 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Müller, Bernd R. A1 - Lange, Axel A1 - Hentschel, Manfred P. A1 - Kupsch, Andreas ED - Kastner, J. T1 - A comfortable procedure for correcting X-ray detector backlight T2 - Conference on industrial computed tomography CY - Wels, Austria DA - 2012-09-19 KW - X-ray detector backlighting KW - Radiography KW - Fluorescent screen KW - Diffuse background KW - Computed tomography PY - 2012 SN - 978-3-8440-1281-1 SN - 1610-4773 SP - 151 EP - 157 PB - Shaker CY - Aachen AN - OPUS4-26768 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Georgi, Steven A1 - Baeßler, Matthias A1 - Cuéllar, Pablo T1 - Verformungsakkumulation von Offshore-Pfahlgründungen unter zyklischer Belastung N2 - Die Berechnung von Verformungen lateral belasteter Pfahlgründungen bedingt in der Regel die Überführung der transienten Belastungen aus verschiedenen Umwelteinwirkungen in eine meist sinusförmige zyklische Belastung mit konstanter Amplitude. Dies bringt die Vernachlässigung der Reihenfolge, in der die realen Belastungen auftreten, mit sich. Die Voraussetzung dafür ist, dass der Einfluss dieser Reihenfolge auch tatsächlich gering ist. Da die meisten experimentellen Untersuchung hierzu sich auf die Elementebene und relativ geringe Zyklenzahlen beschränken, wird hier eine Versuchsserie präsentiert, in welcher Modellpfähle durch Zyklenpakete mit unterschiedlichen Amplituden in variierender Reihenfolge und hohen Lastspielzahlen belastet werden. Es zeigt sich ein geringer bis vernachlässigbarer Einfluss der Reihenfolge der Lastblöcke für reine Schwellbelastungen. T2 - 32. Baugrundtagung CY - Mainz, Germany DA - 2012-09-26 PY - 2012 SN - 9783981395358 SP - 97 EP - 104 CY - Essen AN - OPUS4-26769 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Eichler, Thorsten A1 - Isecke, Bernd T1 - Kathodischer Korrosionsschutz von Stahl in Beton - Möglichkeiten und Grenzen mit praktischen Beispielen T2 - 23. Informationsseminar Bauwerke instandsetzen - heute und morgen CY - Bad Nauheim, Germany DA - 2012-11-07 PY - 2012 AN - OPUS4-26770 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Kitze, Jessica A1 - Brekow, Gerhard A1 - Montag, Hans-Joachim A1 - Boehm, Rainer A1 - Brackrock, Daniel A1 - Kreutzbruck, Marc T1 - Ultraschallprüfung mit Matrix-Arrays zur schnellen Fehlerdetektion in Kupferlötschichten T2 - DGZfP-Jahrestagung 2012 CY - Graz, Austria DA - 2012-09-17 PY - 2012 AN - OPUS4-26713 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Kolkoori, Sanjeevareddy A1 - Shokouhi, Parisa A1 - Rahman, Mehbub-Ur A1 - Kreutzbruck, Marc A1 - Prager, Jens T1 - A Comparative Study of Ray Tracing and CIVA for Ultrasonic Inspection of Anisotropic Inhomogeneous Austenitic Welds T2 - Review of Progress in Quantitative non-destructive Evaluation (QNDE 2012) CY - Denver, CO, USA DA - 2012-07-15 PY - 2012 AN - OPUS4-26714 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Völz, Uwe A1 - Boehm, Rainer A1 - Heckel, Thomas A1 - Spruch, W. T1 - Ultraschallprüfung an Hohlwellen mit einem Gruppenstrahler-Kegelarray T2 - DACH-Jahrestagung CY - Graz, Austria DA - 2012-09-17 PY - 2012 AN - OPUS4-26715 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Maierhofer, Christiane A1 - Reischel, Mercedes A1 - Röllig, Mathias A1 - Myrach, Philipp A1 - Ziegler, Mathias A1 - Steinfurth, Henrik T1 - Development of reference test specimens for the standardization of active thermography with flash excitation T2 - 11th Conference on Quantitative InfaRed Thermography QIRT 2012 CY - Naples, Italy DA - 2012-06-11 PY - 2012 AN - OPUS4-26716 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Reischel, Mercedes A1 - Maierhofer, Christiane A1 - Myrach, Philipp A1 - Röllig, Mathias A1 - Steinfurth, Henrik T1 - Validierung der Blitzthermografie zur zerstörungsfreien Prüfung von Faserverbundmaterialien T2 - Gemeinsame Sitzung der AGs NDI, Engineering und Klebtechnik des Carbon Composite e. V. CY - Augsburg, Germany DA - 2012-07-05 PY - 2012 AN - OPUS4-26717 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Gravenkamp, Hauke A1 - Song, C. A1 - Prager, Jens T1 - Computation of dispersion relations in wave guides of arbitrary cross section T2 - World Congress on Computational Mechanics (WCCM) 2012 CY - São Paulo, Brazil DA - 2012-07-08 PY - 2012 AN - OPUS4-26718 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Kreutzbruck, Marc A1 - Maierhofer, Christiane A1 - Schlichting, Joachim A1 - Ziegler, Mathias T1 - Flying Laser Spot Thermography for the Fast Detection of Surface Breaking Cracks T2 - 18th WCNDT 2012 (World Conference on Nondestructive Testing) CY - Durban, South Africa DA - 2012-04-16 PY - 2012 AN - OPUS4-26719 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Kreutzbruck, Marc A1 - Prager, Jens A1 - Boehm, Rainer A1 - Kitze, Jessica A1 - Brekow, Gerhard T1 - Progress in Acoustical Defect Sizing NDT Methods for the Inspection of Power-Plant Components T2 - 18th WCNDT 2012 (World Conference on Nondestructive Testing) CY - Durban, South Africa DA - 2012-04-16 PY - 2012 AN - OPUS4-26720 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Fry, D. A1 - Ewert, Uwe A1 - Gollwitzer, Christian A1 - Neuser, E. A1 - Selling, J. T1 - Measuring microfocal spots using digital radiography KW - ZfP KW - Radiographie KW - Bildqualität KW - Röntgen-Röhren KW - Brennfleckmessung PY - 2012 SN - 0025-5327 VL - 70 IS - 8 SP - 981 EP - 990 PB - Society for Nondestructive Testing CY - Columbus, Ohio AN - OPUS4-26701 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Kipphardt, Heinrich T1 - Messtechnische Rückführung in der Elementanalytik T2 - 18.Kolloquium von EUROLAB-D, BAM CY - Berlin, Germany DA - 2012-05-04 PY - 2012 AN - OPUS4-26702 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Naghib Zadeh, Hamid A1 - Rabe, Torsten T1 - LTCC-integrierbare Kondensatorwerkstoffe auf Basis von Bariumtitanat T2 - Sitzung des Arbeitskreises "Funktionskeramik" CY - Jena, Germany DA - 2012-10-17 PY - 2012 AN - OPUS4-26703 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Tuma, Dirk A1 - Maurer, G. T1 - Gas solubility in ionic liquids T2 - 243rd American Chemical Society National Meeting & Exposition CY - San Diego, CA, USA DA - 2012-03-25 PY - 2012 AN - OPUS4-26704 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Ferrero, Fabio A1 - Meyer-Scherf, Ronald A1 - Kluge, Martin A1 - Schröder, Volkmar T1 - A Parametric Study of Shock Wave Simulations with Help of COMSOL Multiphysics T2 - COMSOL Conference CY - Milan, Italy DA - 2012-12-10 PY - 2012 N1 - Geburtsname von Kluge, Martin: Beckmann-Kluge, M. - Birth name of Kluge, Martin: Beckmann-Kluge, M. N1 - Geburtsname von Meyer-Scherf, Ronald: Meyer, R. - Birth name of Meyer-Scherf, Ronald: Meyer, R. AN - OPUS4-26705 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Bremser, Wolfram T1 - Messunsicherheit beim Messen an Physikalischen Grenzen T2 - 266. PTB-Seminar, BAM CY - Berlin, Germany DA - 2012-03-20 PY - 2012 AN - OPUS4-26707 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Mente, Tobias A1 - Böllinghaus, Thomas T1 - Mesoscale Model for Hydrogen Assisted Cracking in Two-Phase Microstuctures T2 - 10th International Seminar Numerical Analysis of Weldability CY - Seggauberg, Austria DA - 2012-09-23 PY - 2012 AN - OPUS4-26781 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Heinrich, Sebastian A1 - Edeling, Florian A1 - Liebner, Christian A1 - Hieronymus, Hartmut A1 - Lange, T. A1 - Klemm, E. T1 - Catalyst as ignition source of an explosion inside a microreactor N2 - The present issue reports on a specific aspect of safety engineering of the heterogeneously catalysed oxidation of ethene in a continuous-flow microreactor. Conversion of ethene and the corresponding surface temperature of the catalyst were monitored for different reactor temperatures and total flow rates with a stoichiometric ethene/oxygen mixture for total oxidation. Safe operation of the highly exothermic oxidation was possible, but not in the whole parameter range. At high reactor temperatures and flow rates, ignition of an explosion inside the microreactor caused by a hot spot on the surface of the catalyst was observed for the first time. KW - Catalyst KW - Ethene KW - Explosions KW - Hot spot KW - Microstructure KW - Safety PY - 2012 U6 - https://doi.org/10.1016/j.ces.2012.08.049 SN - 0009-2509 VL - 84 SP - 540 EP - 543 PB - Elsevier CY - Amsterdam AN - OPUS4-26782 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Kannengießer, Thomas A1 - Kromm, Arne A1 - Brauser, Stephan T1 - In-situ Synchrotron Diffraction Study of Transformation Induced Plasticity Steel T2 - Ms&T'12 Materials Science & Technology 2012 Conference CY - Pittsburgh, PA, USA DA - 2012-10-07 PY - 2012 AN - OPUS4-26783 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Avilov, Vjaceslav A1 - Schneider, André A1 - Lammers, Marco A1 - Gumenyuk, Andrey A1 - Rethmeier, Michael T1 - Electromagnetic Control of the Weld Pool Dynamics in Partial Penetration Laser Beam Welding of Aluminium Alloy T2 - 31th International Congress on Applications of Laser & Electro-Optics CY - Anaheim, CA, USA DA - 2012-09-23 PY - 2012 AN - OPUS4-26784 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Ferrero, Fabio A1 - Meyer-Scherf, Ronald A1 - Kluge, Martin A1 - Schröder, Volkmar T1 - A parametric study of shock wave simulations with help of COMSOL multiphysics N2 - Adiabatic compression of gases can work as an ignition source and is still one of the main causes of accidents in chemical plants processing tetrafluoroethylene (Reza and Christiansen, 2007). The ignition of tetrafluoroethylene induced by adiabatic compression has been studied experimentally with a setup which allowed for the rapid opening of a high speed valve connecting two portions of a pipeline at different initial pressures. Due to the fast opening time and to the high pressure difference, a shock wave in the pipeline was generated. The propagation of the shock wave and its reflection at the end of the pipeline caused pressure and temperature increase. This led to some ignitions in the experiments performed. Nonetheless, in some test an ignition was not achieved, even if this was expected according to the theoretical temperatures predicted by the Rankine-Hugoniot equations. In order to understand the discrepancy between the experimental results and the theoretical predictions, shock wave simulations have been carried out with COMSOL Multiphysics. The 'High Mach Flow' interface was used, since it solves the heat and impulse equations for fast flows. Figure 1 and Figure 2 show, respectively, the velocity and temperature distribution over time for a simulation in a 0.2 m pipeline of 20 mm in diameter with the following settings: - high pressure section: nitrogen initially at 20 bar; - low pressure section: nitrogen initially at 1 bar; - initial temperature of the system: 20 °C; - adiabatic walls with slip condition for the flow; - laminar flow. As from Figure 1 and Figure 2 the shock wave generation and propagation has been properly computed and the physical properties of the shock wave reflected the prediction of the Rankine-Hugoniot equation. Nonetheless, divergence problem occurred when trying to add turbulence to the system and strange temperature and profiles after the shock wave reflection were achieved if the no slip condition at the walls was chosen. Despite these limitations, it was possible to perform a parametric study and to analyze the effect of the pipe diameter and length on the shock wave evolution. Here simulations with constant wall temperature were carried out, in order to account for the heat losses to the pipe surroundings. Figure 3 shows that the temperature of the reflected wave is maintained for a longer time, if the pipe diameter is larger, due to minor heat losses. On the other hand, Figure 4 shows that higher average temperatures are achieved and maintained for a longer time if the pipe length increases. These results suggest that in the experiments performed by Meyer (2009) the pipe geometry was probably not optimal for the achievement/conservation of high temperatures and might explain the difficulty in inducing ignitions by adiabatic compression. T2 - COMSOL Conference 2012 CY - Milan, Italy DA - 2012-10-10 KW - Adiabatic compression KW - Shock wave KW - Numerical simulation PY - 2012 SN - 978-0-9839688-7-0 N1 - Geburtsname von Kluge, Martin: Beckmann-Kluge, M. - Birth name of Kluge, Martin: Beckmann-Kluge, M. N1 - Geburtsname von Meyer-Scherf, Ronald: Meyer, R. - Birth name of Meyer-Scherf, Ronald: Meyer, R. SP - 1 EP - 6 AN - OPUS4-26785 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Ferrero, Fabio A1 - Zeps, Robert A1 - Kluge, Martin A1 - Schröder, Volkmar A1 - Spoormaker, T. T1 - Analysis of the self-heating process of tetrafluoroethylene in a 100-dm³-reactor N2 - There is a lack of data on the self-ignition behaviour of tetrafluoroethylene in industrial sized equipment. Therefore, a facility was designed and constructed for the determination of the Minimum Ignition Temperature of Decomposition of tetrafluoroethylene in a cylindrical reactor with a volume of 100 dm3. Tests with initial pressures of 5 and 10 bar(a) were performed. The Minimum Ignition Temperature of Decomposition of tetrafluoroethylene was observed to decrease with the initial pressure, in agreement with previous experiments with small scale cylindrical vessels. This paper describes the test set-up und gives an overview of the achieved experimental results. In particular the effect of the reactor orientation (vertical or horizontal) is discussed. Furthermore, simplified equations from the Semenov thermal explosion theory are used to attempt extrapolations of previous and current data on the Minimum Ignition Temperature of Decomposition of tetrafluoroethylene to other vessel volumes or initial pressures. Moreover, the experimental data are plotted together against the heated volume to heated surface ratio, which should provide a better extrapolation to other vessel dimensions by taking into account that the efficiency of the dispersion of the heat generated by the reaction is different for two reactors with the same volume but different diameter. Finally, simplified methods for predicting the Minimum Ignition Temperature of Decomposition of tetrafluoroethylene presented previously by the authors are validated for large scale reactors with the experimental data collected within the current work. KW - Tetrafluoroethylene KW - Decomposition KW - Self-ignition KW - Large-scale reactor PY - 2012 U6 - https://doi.org/10.1016/j.jlp.2012.06.001 SN - 0950-4230 SN - 1873-3352 N1 - Geburtsname von Kluge, Martin: Beckmann-Kluge, M. - Birth name of Kluge, Martin: Beckmann-Kluge, M. VL - 25 IS - 6 SP - 1010 EP - 1017 PB - Butterworth CY - Guildford, Surrey AN - OPUS4-26786 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Bertin, Annabelle A1 - Garchow, Tina A1 - Hartmann, J. T1 - Effect of multivalent biocompatible (macro)molecules on the one-pot synthesis of nanoparticles for biomedical applications T2 - 2nd International Symposium on "Multivalency in Chemistry and Biochemistry" CY - Berlin, Germany DA - 2012-10-18 PY - 2012 AN - OPUS4-26787 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Daschewski, Maxim A1 - Harrer, Andrea A1 - Prager, Jens A1 - Kreutzbruck, Marc A1 - Guderian, Matthias A1 - Meyer-Plath, Asmus ED - Linde, B. B. J. ED - Paczkowski, J. ED - Ponikwicki, N. T1 - Carbon nanomaterials as broadband airborne ultrasound transducer N2 - A method has been developed for the generation of airborne ultrasound using the thermoacoustic principle applied to carbon materials at the micro- and nanoscale. Such materials are shown to be capable to emitting the ultrasound. We tested the acoustic performance of electrospun polyacrylonitrile-derived carbon nanofibers tissues and determined the sound pressure for frequencies up to 350 kHz. The experimental results are compared to analytic calculations. T2 - International congress on ultrasonics CY - Gdansk, Poland DA - 2011-09-05 KW - Thermoacoustic KW - Airborne ultrasound transducer KW - Sound pressure PY - 2012 SN - 978-0-7354-1019-0 U6 - https://doi.org/10.1063/1.3703262 SN - 0094-243X N1 - Serientitel: AIP conference proceedings – Series title: AIP conference proceedings IS - 1433 SP - 624 EP - 627 PB - American Institute of Physics CY - Melville, NY AN - OPUS4-26788 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Guilherme, A. A1 - Buzanich, Günter A1 - Radtke, Martin A1 - Reinholz, Uwe A1 - Coroado, J. A1 - Dos Santos, J.M.F. A1 - Carvalho, M.L. T1 - Synchrotron micro-XRF with compound refractive lenses (CRLs) for tracing key elements on Portuguese glazed ceramics N2 - Several glazed ceramic fragments (XVIth to XVIIIth centuries) from two production centers in Portugal (Coimbra and Lisbon) were the object of this study. The ones from Coimbra comprise two sets of samples: faiences and tiles. The ones from Lisbon are only tiles (azulejos, in Portuguese). The three main divisions of such pieces are the ceramic support (body), glaze and surface decoration. The system decoration/glaze is not easy to investigate, due to the high heterogeneity resulting from the mixing procedures and firing temperatures used. Moreover, the ability of the pigment to diffuse into the base glaze varies depending on the composition of both the pigment and the glaze in terms of fusibility. In order to raster these effects, high resolution techniques are required. In this work, synchrotron micro-X-ray fluorescence (µ-XRF) analysis was performed to monitor the profiles of the characteristic elements from the colors used and the glaze in well prepared cross-sections of the samples. Key elements are: Co for blue, Mn for purple, Cu for green, Sb for yellow, Pb for the glaze and Fe for the body. The major difference observed is that faiences have glaze thicknesses between 150 and 200 µm and tiles have glaze thicknesses between 350 and 400 µm. Furthermore, in faiences all the pigments except the yellow ones are well dispersed into the glassy matrix, while in tiles, all of them are just partially diffused throughout the glaze. However, differences between the tiles from Coimbra and Lisbon were observed. In the samples from Lisbon, a higher intake from the pigment throughout the glaze is observed. KW - Synchrotron micro-XRF KW - Compound refractive lenses (CRLs) KW - Portuguese glazed ceramics PY - 2012 U6 - https://doi.org/10.1039/c2ja30030c SN - 0267-9477 SN - 1364-5544 VL - 27 IS - 6 SP - 966 EP - 974 PB - Royal Society of Chemistry CY - London AN - OPUS4-26789 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Buzanich, Günter A1 - Radtke, Martin A1 - Reinholz, Uwe A1 - Riesemeier, Heinrich A1 - Streli, C. T1 - Micro-X-ray absorption spectroscopy with compound refractive lenses N2 - A study regarding the possibility to use compound refractive lenses (CRLs) for X-ray absorption spectroscopy (XAS) was conducted. For XAS measurements the energy of the monochromatic incident beam has to be tuned over an energy range which is broader than the energy bandwidth of a CRL. To prove that µ-XAS with compound refractive lenses is possible, it had to be investigated how changes in the energy influence the beam parameters. This was done by tuning the energy around the nominal energy of the lens and recording images with a high resolution X-ray imaging setup. To investigate the changes in the spot size the scintillator was placed at the nominal focal distance and scans along the beam axis were performed. The effect on the photon flux of the incident beam due to absorption in the lens was investigated by performing XANES measurement on different reference materials with and without CRL. The results of these measurements using a CRL designed for 9 keV are shown and discussed. KW - Micro-XAS KW - Compound refractive lens PY - 2012 U6 - https://doi.org/10.1039/c2ja30130j SN - 0267-9477 SN - 1364-5544 VL - 27 IS - 10 SP - 1803 EP - 1808 PB - Royal Society of Chemistry CY - London AN - OPUS4-26790 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Wan, Wei A1 - Biyikal, Mustafa A1 - Rurack, Knut A1 - Wagner, R. A1 - Sellergren, B. T1 - Moleculary imprinted polymer as sensory materials for the selective detection of carboxylates via fluorescence enhancement T2 - 7th INTERNATIONAL CONFERENCE on Molecularly Imprinted Polymers - Science and Technology CY - Paris, France DA - 2012-08-27 PY - 2012 AN - OPUS4-26851 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Avilov, Vjaceslav A1 - Schneider, André A1 - Lammers, Marco A1 - Gumenyuk, Andrey A1 - Rethmeier, Michael T1 - Electromagnetic control of the Weld Pool Dynamics in Partial Penetration Laser Beam Welding of Aluminium Alloys T2 - Conference Electromagnetic Processing of Materials Beijing 2012 CY - Beijing, China DA - 2012-10-22 PY - 2012 AN - OPUS4-26852 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Bachmann, Marcel A1 - Avilov, Vjaceslav A1 - Gumenyuk, Andrey A1 - Rethmeier, Michael T1 - Simulation of an Inductive Weld Pool Support for Deep Penetration Laser Beam Welding of Metal Parts T2 - Conference Electromagnetic Processing of Materials Beijing 2012 CY - Beijing, China DA - 2012-10-22 PY - 2012 AN - OPUS4-26853 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Bachmann, Marcel A1 - Gumenyuk, Andrey A1 - Avilov, Vjaceslav A1 - Rethmeier, Michael T1 - Fluid Flow Simulation of the Influence of a Steady Magnetic Field on the Weld Pool Dynamics in Deep Penetration Laser Beam Welding of Aluminium T2 - Conference Electromagnetic Processing of Materials Beijing 2012 CY - Beijing, China DA - 2012-10-22 PY - 2012 AN - OPUS4-26854 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Plarre, Rüdiger T1 - Holzschutz in Deutschland - Ansprüche und Regelsetzung T2 - Projektkolloquium "Bauwerkstrocknung und Sanierung" CY - Leipzig, Germany DA - 2012-10-17 PY - 2012 AN - OPUS4-26855 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Schultz, C. A1 - Dombkewitz, F. A1 - Schüle, M. A1 - Bonse, Jörn A1 - Rau, B. A1 - Schlatmann, R. A1 - Quaschning, V. A1 - Stegemann, B. A1 - Fink, F. T1 - Influence of the Mechanical Properties of Sputtered Mo Solar Cell Back Contacts on Laser Scribing T2 - Proceedings of the 27th European Photovoltaic Solar Energy Conference CY - Frankfurt am Main, Germany DA - 2012-09-24 PY - 2012 AN - OPUS4-26856 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Kasparek, Eva Maria T1 - Container design testing for final disposal of non-heat generating waste T2 - Workshop KAERI (Korean Atomic Energy Research Institute) - BAM CY - Daejeon, South Korea DA - 2012-09-11 PY - 2012 AN - OPUS4-26857 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Kasparek, Eva Maria T1 - Numerical analyses of cask structures and material behavior T2 - Workshop KAERI (Korean Atomic Energy Research Institute) - BAM CY - Daejeon, South Korea DA - 2012-09-11 PY - 2012 AN - OPUS4-26858 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Kasparek, Eva Maria T1 - Beanspruchungen von Behältern für feuchte, mittelradioaktive Inventare unter thermischen Belastungen im Endlager Konrad T2 - 6. Erfahrungsaustausch zum Qualitätsmanagement bei Herstellung und Betrieb von Konrad-Endlagerbehältern, BAM CY - Berlin, Germany DA - 2012-09-26 PY - 2012 AN - OPUS4-26859 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Auersch, Lutz T1 - Dynamic behavior of slab tracks on homogeneous and layered soils and the reduction of ground vibration by floating slab tracks N2 - The dynamics of slab tracks and floating slab tracks are analyzed by multibeam models for the track and by integration in the wave-number domain for the soil, which is modeled as a layered half-space. Frequency-dependent compliances and force transfers are calculated for a great variety of track and soil parameters. The distribution of the load and the displacements along the track is investigated as well as the wave propagation perpendicular to the track and the ground vibration amplitudes. The floating slab track has a dominating plate-mat resonance and a strong high-frequency reduction. A track-soil resonance can also be recognized for an unisolated slab track in the case of layered soils. Generally, there is a strong damping of the track by the soil. The reduction effect of the slab mat is mainly owing to the elimination of this strong damping. The continuous soil yields slightly different rules for the displacements and force densities than those of a Winkler support. The total force transfer from the rail to the soil is the best criterion to judge the effectiveness of a floating slab track in reducing the ground vibration at some distance from the railway line. The total force transfer is easier to calculate than the double Fourier integrals of the ground vibration amplitudes, namely in the far field, and it has the best correlation with the reduction of the ground vibration. KW - Railway track KW - Slab track KW - Floating slab track KW - Track-soil interaction KW - Track vibration KW - Ground vibration KW - Force transfer PY - 2012 U6 - https://doi.org/10.1061/(ASCE)EM.1943-7889.0000407 SN - 0733-9399 SN - 1943-7889 VL - 138 IS - 8 SP - 923 EP - 933 PB - Soc. CY - New York, NY, USA AN - OPUS4-26860 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Drzymala, Sarah A1 - Kraus, Werner A1 - Emmerling, Franziska A1 - Koch, Matthias T1 - (3S,7R)-7,14,16-trihydroxy-3-methyl-3,4,5,6,7,8,9,10,11,12-decahydro-1H-2-benzoxacyclotetradecin-1-one N2 - The asymmetric unit of the title compound, C18H26O5, which is known as α-zearalanol, contains two molecules having the same conformation, with a r.m.s. deviation of less than 0.03 Å for all non-H atoms. In each independent molecule, an intramolecular O—H···O hydrogen bond stabilizes the molecular conformation. In the crystal, O—H···O hydrogen bonds link the molecules, forming infinite chains along [110] and [1¯10]. KW - Alpha-zearalanol KW - Zearalenon KW - Estrogen KW - Growth promoter KW - Ralgro PY - 2012 U6 - https://doi.org/10.1107/S1600536812041141 SN - 1600-5368 VL - 68 IS - 11 SP - o3071, sup-1 - sup-11 PB - Munksgaard CY - Copenhagen AN - OPUS4-26771 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Merchel, S. A1 - Bremser, Wolfram A1 - Akhmadaliev, S. A1 - Arnold, M. A1 - Aumaître, G. A1 - Bourlès, D.L. A1 - Braucher, R. A1 - Caffee, M. A1 - Christl, M. A1 - Fifield, L.K. A1 - Finkel, R.C. A1 - Freeman, S.P.H.T. A1 - Ruiz-Gómez, A. A1 - Kubik, P.W. A1 - Martschini, M. A1 - Rood, D.H. A1 - Tims, S.G. A1 - Wallner, A. A1 - Wilcken, K. M. A1 - Xu, S. T1 - Quality assurance in accelerator mass spectrometry: results from an international round-robin exercise for 10Be N2 - The first international round-robin exercise for the measurement of the long-lived radionuclide 10Be has been conducted. Ten participating accelerator mass spectrometry (AMS) facilities have each measured three samples at the 10-12 to 10-14 10Be/9Be level. All results have been made traceable to the NIST SRM 4325 standard to avoid additional discrepancies that arise when different facilities use different calibration materials. Hence, the data concentrates on pure measurement distinctions. Multivariate statistical investigations have been performed to reveal a bias between facilities, i.e. two distinguished groups could be identified. Maximum discrepancies between two single facilities are in the range of 6–31% depending on the absolute 10Be/9Be value. These findings should be considered when comparing 10Be data produced at one AMS facility with that produced at another facility, which is e.g. often the case for in situ 10Be dating studies. Round-robin exercises are a very helpful tool as part of an overall quality assurance scheme to improve the accuracy, and not only the precision, of AMS data. KW - Accelerator mass spectrometry KW - Terrestrial cosmogenic nuclides (TCN) KW - Cosmogenic nuclides (TCN) KW - Cosmogenic nuclide exposure dating KW - Calibration PY - 2012 U6 - https://doi.org/10.1016/j.nimb.2012.07.038 SN - 0168-583X SN - 1872-9584 VL - 289 SP - 68 EP - 73 PB - Elsevier B.V. CY - Amsterdam AN - OPUS4-26772 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Farajian, Majid A1 - Kromm, Arne A1 - Barsoum, Z. T1 - Residual Stress Engineering in Fatigue Resistant Welds T2 - International Conference on Residual Stresses 9 CY - Garmisch-Partenkirchen, Germany DA - 2012-10-07 PY - 2012 AN - OPUS4-26773 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Ünal, Murat A1 - Ramge, Peter A1 - Kühne, Hans-Carsten T1 - Restoration of dalles de verre concrete glass windows with polymer modified repair mortars T2 - ASPIC 2012 - 7th Asian symposium on polymers in concrete CY - Istanbul, Turkey DA - 2012-10-03 KW - Rehabilitation of concrete structures KW - Polymer modified repair mortar KW - Special test specimens KW - Durability KW - Carbonation KW - Cultural heritage PY - 2012 SN - 978-975-561-427-4 SP - 397 EP - 404 AN - OPUS4-26774 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Ramge, Peter A1 - Ünal, Murat A1 - Kühne, Hans-Carsten T1 - Polymer modified repair mortars for the restoration of natural stone in cultural heritage T2 - ASPIC 2012 - 7th Asian symposium on polymers in concrete CY - Istanbul, Turkey DA - 2012-10-03 KW - Repair mortar KW - Natural stone KW - Cultural heritage KW - Polymer cement mortar (PCC) KW - Stone restoration KW - Stone reprofiling KW - Casein PY - 2012 SN - 978-975-561-427-4 SP - 415 EP - 422 AN - OPUS4-26775 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Obelobe, E. A1 - Altenkirch, J. A1 - Gibmeier, J. A1 - Kromm, Arne A1 - Kannengießer, Thomas T1 - Residual stress in steel fusion welds joined using low transformation temperature (LTT) filler material T2 - International Conference on Residual Stresses 9 CY - Garmisch-Partenkirchen, Germany DA - 2012-10-07 PY - 2012 AN - OPUS4-26776 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Trappe, Volker A1 - Günzel, Stephan A1 - Goebbels, Jürgen T1 - Modelling the damage behaviour of short fibre reinforced composites using a non-destructively evaluated fibre orientation distribution and micro cracking T2 - ECCM15 - 15th European conference on composite materials CY - Venice, Italy DA - 2012-06-24 KW - Short fiber reinforced plastics KW - Nondestructive testing KW - Micro cracking KW - Damage mechanics PY - 2012 SN - 978-88-88785-33-2 SP - 1 EP - 6(?) AN - OPUS4-26777 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Kromm, Arne A1 - Kannengießer, Thomas T1 - Effect of martensitic phase transformation in stress biuld-up during multilayer welding T2 - International Conference on Residual Stresses 9 CY - Garmisch-Partenkirchen, Germany DA - 2012-10-07 PY - 2012 AN - OPUS4-26778 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Bachmann, Marcel A1 - Avilov, Vjaceslav A1 - Gumenyuk, Andrey A1 - Rethmeier, Michael T1 - Multi-physical finite element simulation of an electromagnetic weld pool support in full-penetration high power laser beam welding of metal plates T2 - 10th International Seminar Numerical Analysis of Weldability CY - Seggauberg, Austria DA - 2012-09-24 PY - 2012 AN - OPUS4-26779 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Bachmann, Marcel A1 - Avilov, Vjaceslav A1 - Gumenyuk, Andrey A1 - Rethmeier, Michael T1 - Multi-Physics Process Simulation of Static Magnetic Fields in High Power Laser Beam Welding of Aluminium T2 - COSMOL Conference Milan 2012 CY - Milan, Italy DA - 2012-10-10 PY - 2012 AN - OPUS4-26780 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Westwood, S. A1 - Josephs, R. A1 - Choteau, T. A1 - Daireaux, A. A1 - Mesquida, C. A1 - Wielgosz, R. A1 - Rosso, A. A1 - de Arechavaleta, M.R. A1 - Davies, S. A1 - Wang, H. A1 - do Rego, E.C.P. A1 - Rodrigues, J.M. A1 - de Freitas Guimaraes, E. A1 - Sousa, M.V.B. A1 - Monteiro, T.M. A1 - das Neves Valente, L.A. A1 - Violante, F.G.M. A1 - Almeida, R. R. R. A1 - Quaresma, M.C.B. A1 - Nogueira, R. A1 - Windust, A. A1 - Dai, X. A1 - Li, X. A1 - Zhang, W. A1 - Li, M. A1 - Shao, M. A1 - Wei, C. A1 - Wong, S.-K. A1 - Cabillic, J. A1 - Gantois, F. A1 - Philipp, Rosemarie A1 - Pfeifer, Dietmar A1 - Hein, Sebastian A1 - Klyk-Seitz, Urszula-Anna A1 - Ishikawa, K. A1 - Castro, E. A1 - Gonzalez, N. A1 - Krylov, A. A1 - Lin, T.T. A1 - Kooi, L.T. A1 - Fernandes-Whaley, M. A1 - Prévoo, D. A1 - Archer, M. A1 - Visser, R. A1 - Nlhapo, N. A1 - de Vos, B. A1 - Ahn, S. A1 - Pookrod, P. A1 - Wiangnon, K. A1 - Sudsiri, N. A1 - Muaksang, K. A1 - Cherdchu, C. A1 - Gören, A.C. A1 - Bilsel, M. A1 - LeGoff, T. A1 - Bearden, D. A1 - Bedner, M. A1 - Duewer, D. A1 - Hancock, D. A1 - Lang, B. A1 - Lippa, K. A1 - Schantz, M. A1 - Sieber, j. T1 - Final report on key comparison CCQM-K55.b (aldrin): An international comparison of mass friction purity assignment of aldrin N2 - Under the auspices of the Organic Analysis Working Group (OAWG) of the Comité Consultatif pour la Quantité de Matière (CCQM) a key comparison, CCQM K55.b, was coordinated by the Bureau International des Poids et Mesures (BIPM) in 2010/2011. Nineteen national measurement institutes and the BIPM participated. Participants were required to assign the mass fraction of aldrin present as the main component in the comparison sample for CCQM-K55.b which consisted of technical grade aldrin obtained from the National Measurement Institute Australia that had been subject to serial recrystallization and drying prior to sub-division into the units supplied for the comparison. Aldrin was selected to be representative of the performance of a laboratory's measurement capability for the purity assignment of organic compounds of medium structural complexity [molar mass range 300 Da to 500 Da] and low polarity (pKOW < -2) for which related structure impurities can be quantified by capillary gas phase chromatography (GC). The key comparison reference value (KCRV) for the aldrin content of the material was 950.8 mg/g with a combined standard uncertainty of 0.85 mg/g. The KCRV was assigned by combination of KCRVs assigned by consensus from participant results for each orthogonal impurity class. The relative expanded uncertainties reported by laboratories having results consistent with the KCRV ranged from 0.3% to 0.6% using a mass balance approach and 0.5% to 1% using a qNMR method. The major analytical challenge posed by the material proved to be the detection and quantification of a significant amount of oligomeric organic material within the sample and most participants relying on a mass balance approach displayed a positive bias relative to the KCRV (overestimation of aldrin content) in excess of 10 mg/g due to not having adequate procedures in place to detect and quantify the non-volatile content–specifically the non-volatile organics content–of the comparison sample. There was in general excellent agreement between participants in the identification and the quantification of the total and individual related structure impurities, water content and the residual solvent content of the sample. The comparison demonstrated the utility of 1H NMR as an independent method for quantitative analysis of high purity compounds. In discussion of the participant results it was noted that while several had access to qNMR estimates for the aldrin content that were inconsistent with their mass balance determination they decided to accept the mass balance result and assumed a hidden bias in their NMR data. By contrast, laboratories that placed greater confidence in their qNMR result were able to resolve the discrepancy through additional studies that provided evidence of the presence of non-volatile organic impurity at the requisite level to bring their mass balance and qNMR estimates into agreement. PY - 2012 U6 - https://doi.org/10.1088/0026-1394/49/1A/08014 SN - 0026-1394 SN - 1681-7575 VL - 49 IS - CCQM-K55.b Final Report October 2012 SP - 1 EP - 41 PB - Inst. of Physics Publ. CY - Bristol AN - OPUS4-26831 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Thünemann, Andreas T1 - Nanoscale Reference Materials and Exchange T2 - Fast Analysis of Nanoparticles CY - Vienna, Austria DA - 2012-09-06 PY - 2012 AN - OPUS4-26832 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Avilov, Vjaceslav A1 - Schneider, André A1 - Lammers, Marco A1 - Gumenyuk, Andrey A1 - Rethmeier, Michael T1 - Electromagnetic control of the weld pool dynamics in partial penetration laser beam welding of aluminium alloys N2 - The main characteristic feature of deep penetration laser beam welding is a large temperature difference between the plasma cavity (keyhole) in the centre of the weld pool and the melting/solidification front. Large temperature gradients in the weld pool result in a very intensive thermocapillary (Marangoni) convection. The weld pool surface width becomes very large and unstable. However, an externally applied oscillating magnetic field can stabilize the surface of the melt (the Garnier-Moreau effect, 1983). In the present work this technology was used to stabilize the surface of the weld pool in partial penetration 4.4 kW Nd:YAG laser beam welding of AW-5754 alloyin PA position. The AC magnet was mounted on the laser welding head. The oscillating magnet field was oriented perpendicular to the welding direction. It was found that the AC magnet field can drastically reduce the surface roughness of welds. The analysis of the x-ray images shows a rastic reduction of porosity content in the welds. This effect can be explained as a result of electromagnetic ectification of the melt. KW - Electromagnetically controlled laser beam welding KW - Weld pool stabilization KW - Porosity prevention PY - 2012 SN - 1006-706X SN - 1001-0963 VL - 19 IS - Suppl. 1 SP - 233 EP - 236 PB - Ed. Board CY - Beijing AN - OPUS4-26833 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Sterthaus, Jens A1 - Ballheimer, Viktor A1 - Kuschke, Christian A1 - Wille, Frank T1 - Numerical analysis of bolted trunnion systems of packages for radioactive materials T2 - ASME 2012 Pressure vessels & piping division conference CY - Toronto, Ontario, Canada DA - 2012-07-15 KW - Bolted trunnion KW - German guideline BAM-GGR 012 KW - Local stress and strain fields KW - Local and nominal assessment criteria PY - 2012 SP - PVP2012-78499, 1-6 PB - American Society of Mechanical Engineers CY - New York AN - OPUS4-26835 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Schneider, Rudolf T1 - Immunoassays für das Monitoring von pharmakologisch wirksamen Stoffen im Wasserkreislauf bis hin zum Trinkwasser T2 - Trends und Perspektiven in der Lebensmittel- und Umweltanalytik CY - Potsdam, Germany DA - 2012-10-24 PY - 2012 AN - OPUS4-26836 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Thünemann, Andreas T1 - Fast and Reliable in situ Analysis of Dispersions of Magnetic Nanoparticles T2 - Scientific and Clinical Applications of Magnetic Carriers CY - Minneapolis, MN, USA DA - 2012-05-22 PY - 2012 AN - OPUS4-26837 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Thünemann, Andreas T1 - Polymer characterization using hard X-rays for revealing solution and solid state structures T2 - Polydays 2012: Polymers and Light CY - Berlin, Germany DA - 2012-09-30 PY - 2012 AN - OPUS4-26838 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Kiefer, R. A1 - Stilke, R. A1 - Boese, E. A1 - Heyn, Andreas A1 - Engelking, M. A1 - Hillert, R. T1 - Klärung des Schadensmechanismus dekorativ verchromter Kunststoffanbauteile unter verschärfter Streusalzbelastung durch Calcium- und Magnesiumchlorid KW - Korrosion KW - Schaden KW - Chrom KW - Nickel KW - Überzug KW - Streusalz KW - Automobil KW - Elektrochemie PY - 2012 SN - 0016-4232 VL - 103 IS - 9 SP - 1904 EP - 1914 PB - Leuze CY - Saulgau, Württ. AN - OPUS4-26839 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Wöhlecke, Andreas A1 - Müller, Werner T1 - Stand der Zulassungen von Geokunststoffen im Bereich Deponien T2 - 22. Karlsruher Deponien und Altlastenseminar 2012 CY - Karlsruhe, Germany DA - 2012-10-17 PY - 2012 AN - OPUS4-26840 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Mishra, Kirti Bhushan A1 - Wehrstedt, Klaus-Dieter T1 - Applications of peroxy-fuels in vehicle propulsion T2 - COMBURA 2012 - Combustion research and application CY - Maastricht, The Netherlands DA - 2012-10-03 KW - Peroxy-fuels KW - Vehicle propulsion KW - Pool flame KW - Internal combustion engine PY - 2012 UR - http://stw.nl/sites/stw.demo.infi.nl/files/_BOA-def2012%20(klein).pdf SP - 49 EP - 50 AN - OPUS4-26821 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Österle, Werner A1 - Dmitriev, A.I. A1 - Kloß, Heinz T1 - Does ultra-mild wear play any role for dry friction applications, such as automotive braking? N2 - Nanostructured third body films and/or storage of wear debris at the surfaces of the first bodies are deemed as prerequisites of sliding under ultra-mild wear conditions. Since such features have been observed experimentally on brake pads and discs, attempts were undertaken to study their sliding behaviour by modelling on the nanoscopic scale with an approach based on Movable Cellular Automata (MCA). The model rendered the possibility to study the influence of different nanostructures systematically and to assess the impact of different brake pad ingredients on the sliding behaviour, velocity accommodation and friction force stabilization at a sliding contact. Besides providing a review on previously published modelling results, some additional new graphs enabling better visualization of dynamic processes are presented. Although ultra-mild wear conditions were considered to be essential for achieving the desired tribological properties, transitions to mesoscopic and macroscopic wear mechanisms were studied as well. The final conclusion is that ultra-mild wear and corresponding smooth sliding behaviour play an important role during automotive braking, even though temporarily and locally events of severe wear may cause friction instabilities, surface damage and release of coarse wear particles. KW - Dry friction KW - Ultra-mild wear KW - Third body KW - MCA-model KW - Simulation PY - 2012 U6 - https://doi.org/10.1039/c2fd00117a SN - 1359-6640 SN - 1364-5498 VL - 156 IS - 0 SP - 159 EP - 171 PB - Soc. CY - Cambridge [u.a.] AN - OPUS4-26822 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Österle, Werner A1 - Deutsch, Cornelius A1 - Rooch, Heidemarie A1 - Dörfel, Ilona T1 - Friction films on C-SiC discs after dynamometer tests with different commercial brake pads T2 - EuroBrake 2012 CY - Dresden, Germany DA - 2012-04-16 KW - Ceramic disc KW - Friction film KW - PMC-pad KW - SM-pad KW - Third body PY - 2012 IS - EB2012-FM-01 SP - 1 EP - 9 AN - OPUS4-26823 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Habib, Abdel Karim A1 - Lohrer, Christian T1 - Numerical simulation and validation of pyrotechnic smoke emissions KW - Theatrical pyrotechnic articles KW - Aerosols KW - CFD PY - 2012 SN - 1082-3999 IS - 31 SP - 10 EP - 21 CY - Whitewater, Colo. AN - OPUS4-26824 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Burkert, Andreas A1 - Lehmann, Jens A1 - Burkert, Annette A1 - Mietz, Jürgen A1 - Gümpel, P. T1 - Technische und wirtschaftliche Alternativen zu den klassischen nichtrostenden, austenitischen Stählen unter atmosphärischen Einsatzbedingungen N2 - Durch systematische Labor- und Auslagerungsuntersuchungen ist es möglich, sieben unterschiedliche nichtrostende Stahllegierungen hinsichtlich verschiedenster Anwendungen untereinander und auch in Bezug auf zwei austenitische Standardwerkstoffe (1.4301, 1.4404) zu vergleichen. Die parallele Untersuchung von fünf verschiedenen Oberflächenausführungen der jeweiligen Werkstoffe ermöglicht zudem, branchenspezifische Besonderheiten der Oberflächenausführung beim Werkstoffvergleich zu berücksichtigen. Der Einfluss der Oberflächenausführung wird überwiegend bei den Ergebnissen der Auslagerungsversuche in kritischen Atmosphären sichtbar, weniger bei den elektrochemischen Untersuchungen. Die drei Vertreter aus dem Bereich der Duplexstähle zeigten unter den meisten Untersuchungsbedingungen eine hervorragende Korrosionsbeständigkeit. Insbesondere für Anwendungen im Bauwesen können die Lean-Duplexstähle deutliche Vorteile bieten. Der Manganaustenit 1.4376 sowie der Ferrit 1.4509 sind nur eingeschränkt als Alternativen geeignet, da die Werkstoffe bei einigen Versuchen signifikante Schwächen zeigten.--------------------------------------------------------------------------- The systematic laboratory and field exposure tests allow to compare seven different stainless steels among each other and also regarding two standard austenitic materials (1.4301, 1.4401) with respect to various applications. Parallel investigations with five different surface finishes of the respective materials enable to consider also industry-specific features of the surface finish. The influence of the surface finish can mainly be seen in the results of the exposure tests in critical atmospheres and less in the electrochemical investigations. The three duplex stainless steels showed under most of the test conditions excellent corrosion resistance. Especially for applications in civil engineering the lean duplex steels offer clear advantages. The manganese alloyed 1.4376 and the ferritic steel 1.4509 are only limited suitable as alternatives as these materials showed significant weaknesses in some of the tests. KW - Nichtrostende Stähle KW - Bauwesen KW - Atmosphärische Korrosion PY - 2012 U6 - https://doi.org/10.1002/stab.201201624 SN - 0038-9145 SN - 1437-1049 SN - 0932-6375 VL - 81 IS - 11 SP - 875 EP - 888 PB - Ernst CY - Berlin AN - OPUS4-26825 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Krause, Christina A1 - Yin, Huajie A1 - Cerclier, C. A1 - Morineau, D. A1 - Wurm, Andreas A1 - Schick, C. A1 - Emmerling, Franziska A1 - Schönhals, Andreas T1 - Molecular dynamics of a discotic liquid crystal investigated by a combination of dielectric relaxation and specific heat spectroscopy N2 - The molecular dynamics of the discotic liquid crystal pyrene-1,3,6,8-tetracarboxylic tetra(2-ethylhexyl)ester is studied by dielectric relaxation and specific heat spectroscopy. Dielectric spectroscopy shows 3 processes: a β-relaxation at low temperatures and an α-relaxation in the temperature range of the mesophases followed by conductivity. The dielectric α-relaxation is assigned to a restricted glassy dynamics in the plastic crystal as well as in the liquid crystalline phase. The obtained different Vogel–Fulcher–Tammann laws (different Vogel temperatures and fragility) are related to the different restrictions of the dipolar fluctuations in the corresponding phases. By means of specific heat spectroscopy glassy dynamics is also detected in the plastic crystalline phase but with quite a different temperature dependence of the relaxation times. This is discussed considering the different probes involved and how they are influenced by the structure. In the frame of the fluctuation approach a correlation length of glassy dynamics is calculated to 0.78 nm which corresponds to the core–core distance estimated by X-ray scattering. PY - 2012 U6 - https://doi.org/10.1039/c2sm25610j SN - 1744-683X VL - 8 IS - 43 SP - 11115 EP - 11122 PB - RSC Publ. CY - Cambridge AN - OPUS4-26826 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Cerclier, C. A1 - Ndao, M. A1 - Busselez, R. A1 - Lefort, R. A1 - Grelet, E. A1 - Huber, P. A1 - Kityk, A.V. A1 - Noirez, L. A1 - Schönhals, Andreas A1 - Morineau, D. T1 - Structure and phase behavior of a discotic columnar liquid crystal confined in nanochannels N2 - The confinement of discotic columnar liquid crystal in nanoporous templates is a promising strategy to design nanofibers with potential applications in organic electronics. However, for many materials, geometric nanoconfinement has been shown to induce significant modifications of the physical properties, such as structure or phase behavior. We address the case of a discotic columnar liquid crystal confined in various templates. The influence of the size, the roughness, and the chemical nature of pores was investigated for a pyrene derivative by small-angle neutron scattering, X-ray diffraction, and calorimetry on a wide range of temperatures. A homeotropic anchoring (face-on orientation of the disk-shape molecules at the interface) is favored in all smooth cylindrical nanochannels of porous alumina while surface roughness of porous silicon promotes more disordered structures. The hexagonal columnar–isotropic phase transition is modified as a result of geometrical constraints and interfacial interactions. PY - 2012 U6 - https://doi.org/10.1021/jp303690q SN - 1932-7447 SN - 1089-5639 VL - 116 IS - 35 SP - 18990 EP - 18998 PB - Soc. CY - Washington, DC AN - OPUS4-26827 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - GEN A1 - Tscharntke, Dirk A1 - Heckel, Thomas A1 - Boehm, Rainer A1 - Erhard, Anton A1 - Krull, R. A1 - Lützner, J. A1 - Hintze, H. T1 - Development of in-service rail inspection systems using phased arrays PY - 2012 SN - 978-3-87155-608-1 SN - 1618-4513 VL - 4 SP - 182 EP - 187 PB - DVS Media GmbH CY - Düsseldorf ET - English Edition AN - OPUS4-26828 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - GEN A1 - Munikoti, Vijayendra K. A1 - Brekow, Gerhard A1 - Tessaro, Ute A1 - Erhard, Anton T1 - Ultrasonic inspection for transverse defects in dissimilar metal welds PY - 2012 SN - 978-3-87155-608-1 SN - 1618-4513 VL - 4 SP - 153 EP - 161 PB - DVS Media GmbH CY - Düsseldorf AN - OPUS4-26829 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Bien, J. A1 - Helmerich, Rosemarie ED - Jasienko, J. T1 - Theoretical and experimental analysis of historical bridges T2 - SAHC 2012 - 8th International conference on structural analysis of historical constructions CY - Wroclaw, Poland DA - 2012-10-15 KW - Historical bridges KW - Theoretical analysis KW - Experiments KW - Diagnostics PY - 2012 SN - 978-83-7125-216-7 SN - 0860-2395 VL - 1 SP - 45 EP - 63 PB - DWE CY - Wroclaw, Poland AN - OPUS4-26830 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Wu, Guang Mei A1 - Schartel, Bernhard A1 - Bahr, Horst A1 - Kleemeier, M. A1 - Yu, D. A1 - Hartwig, A. T1 - Experimental and quantitative assessment of flame retardancy by the shielding effect in layered silicate epoxy nanocomposites N2 - A quantitative experimental assessment of flame retardancy by the heat shielding in epoxy layered silicate nanocomposite (EP/TPPMMT) is presented. Online heat flux measurements and temperature monitoring within the specimen are performed during the burning in the cone calorimeter. For EP the surface layer equals a pyrolysis front. The reradiation by the hot surface corresponds to the fourth power of the pyrolysis temperature. The surface reradiation (around 10 kW m-2) is thus fairly invariable over burning time and different external heat fluxes. Further, the thermal feedback of the flame is approximated to 20 kW m-2 for both EP and EP/TPPMMT and invariable over different irradiations. Thus the net heat fluxes transformed to the fuel release rate within the pyrolysis front of EP are increased to 45–80 kW m-2 when irradiations of 35–70 kW m-2 are applied. For a residue-forming EP/TPPMMT the surface temperature and thus the reradiation (42–68 kW m-2) crucially increases compared to EP and with increasing irradiation. The net heat fluxes are reduced to 13–22 kW m-2 accordingly. This quantitative assessment of the heat shielding in EP/TPPMMT goes along with proportional and consistent improvement in the fire performance, such as the pyrolysis front velocity, the heat release rate (HRR) characteristics such as averaged and quasi-steady-state HRR and the peak HRR (PHRR). The heat shielding is proven to be the only major flame retardancy effect occurring in nanocomposites based on non-charring polymers. KW - Nanocomposites KW - Heat shielding KW - Flame retardancy KW - Shielding effect PY - 2012 U6 - https://doi.org/10.1016/j.combustflame.2012.07.003 SN - 0010-2180 SN - 1556-2921 VL - 159 IS - 12 SP - 3616 EP - 3623 PB - Elsevier CY - New York, NY AN - OPUS4-26841 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Thünemann, Andreas T1 - Small-Angle X-ray Scattering at BAM Federal Institute for Materials Research and Testing T2 - Solution Scattering from Biological Macromolecules CY - Hamburg, Germany DA - 2012-10-17 PY - 2012 AN - OPUS4-26843 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Fontana, Patrick A1 - Grünberg, Ulf T1 - Untersuchungen zur Haftscherfestigkeit von Lehmmauermörtel T2 - Lehm 2012 - 6. Internationale Fachtagung für Lehmbau CY - Weimar, Germany DA - 2012-10-05 KW - Lehmmauerwerk KW - Lehmmauermörtel KW - Haftscherfestigkeit PY - 2012 SN - 978-3-00-039649-6 IS - Session C SP - 104 EP - 113 AN - OPUS4-26844 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Häßler, Dustin T1 - The "Elliptical Beams" in the Winter Palace in Saint Petersburg - Structural Assessment of a Lightweight Structure T2 - 8th International Conference on Structural Analysis of Historical Constructions CY - Wroclaw, Poland DA - 2012-10-15 PY - 2012 AN - OPUS4-26846 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Lehnik-Habrink, Petra A1 - Aichner, Bernhard A1 - Hein, Sebastian A1 - Kaminski, Katja A1 - Piechotta, Christian T1 - Multi-residue analysis of pesticides and other pollutants in forest soil in Germany T2 - 7th European conference on pesticides and related organic micropollutants in the environment CY - Oporto, Portugal DA - 2012-10-08 PY - 2012 AN - OPUS4-26847 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Hecht, Mandy A1 - Fischer, Tobias A1 - Rurack, Knut A1 - Dietrich, Paul A1 - Unger, Wolfgang T1 - Development and Characterization of a Photostable Boron-dipyrromethene Dye as a Versatile Probe of the Analysis of Surface Functional Groups T2 - Nanocon2012 CY - Brno, Czech Republic DA - 2012-10-23 PY - 2012 AN - OPUS4-26848 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Rurack, Knut A1 - Hecht, Mandy A1 - Climent Terol, Estela A1 - Martínez-Mánez, Ramon T1 - Gated Fluorogenic Hybrid Sensor Materials with Inherent Signal Amplification T2 - 40 International Conference on Coordination Chemistry (ICCC40) CY - Valencia, Spain DA - 2012-09-09 PY - 2012 AN - OPUS4-26849 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Fischer, Tobias A1 - Hecht, Mandy A1 - Dietrich, Paul A1 - Unger, Wolfgang A1 - Rurack, Knut T1 - Development of a dual XPS and Fluorescence Label for the Analysis of Surface Amino Groups T2 - ThGOT, 8. Thementage Grenz und Oberflächentechnik CY - Leipzig, Germany DA - 2012-09-04 PY - 2012 AN - OPUS4-26850 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Köppe, Enrico A1 - Bartholmai, Matthias A1 - Prager, Jens T1 - Früherkennung von Strukturschäden mittels geführter Lamb-Wellen T2 - 16. GMA/ITG-Fachtagung Sensoren und Messsysteme 2012 CY - Nuremberg, Germany DA - 2012-05-22 PY - 2012 AN - OPUS4-26801 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Köppe, Enrico A1 - Bartholmai, Matthias A1 - Prager, Jens T1 - Device concept for the generation of guided waves for early damage detection T2 - Eurosensors XXVI CY - Kraków, Poland DA - 2012-09-09 PY - 2012 AN - OPUS4-26802 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - GEN A1 - Torge, Manfred A1 - Müller, Wolfgang A1 - Schaaf, U. T1 - Restaurierung von Holzfenstern KW - Restaurierung KW - Fenster PY - 2012 N1 - Sprachen: Deutsch/Polnisch - Languages: German/Polish IS - Faltblatt 9 SP - 1 EP - 8 PB - Druckhaus Köthen GmbH AN - OPUS4-26803 LA - mul AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Bartholmai, Matthias A1 - Pettelkau, Alexander A1 - Goedecke, Thomas A1 - Daum, Werner A1 - Farahbakhsh, Mahin A1 - Hohendorf, Stefan A1 - Damm, David T1 - Sicherung von Gefahrguttransporten durch RFID-Tags. Das Projekt SIGRID: Sensorfunktionalität mit integrierter Datenbank-GEFAHRGUT-Information T2 - 22. Münchner Gefahrgut-Tage CY - Munich, Germany DA - 2012-05-14 PY - 2012 AN - OPUS4-26804 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Köppe, Tabea A1 - Bartholmai, Matthias A1 - Werner, Klaus-Dieter A1 - Kammermeier, Michael T1 - Temperature-dependent dynamic analysis of the system strain gauge/adhesive T2 - XIIIth Bilateral Czech/German Symposium "Experimental methods and numerical simulation in engineering science" CY - Telc, Czech Republic DA - 2012-06-05 PY - 2012 N1 - Geburtsname von Köppe, Tabea: Wilk, T. - Birth name of Köppe, Tabea: Wilk, T. AN - OPUS4-26805 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Döring, Joachim A1 - Bovtun, V. A1 - Gaal, Mate A1 - Bartusch, Jürgen A1 - Erhard, Anton A1 - Kreutzbruck, Marc A1 - Yakymenko, Y. T1 - Piezoelectric and electrostrictive effects in ferroelectret ultrasonic transducers N2 - Electromechanical response of polypropylene ferroelectret transducers under application of high-voltage pulses was measured by laser Doppler vibrometry and compared with results of ultrasonic through-air transmission between two ferroelectret transducers. The electromechanical response was completely explained by piezoelectric and electrostrictive effects. The electrostrictive effect dominates at high voltages and provides significant enlargement of the transducer constant, up to factor of 2.5. The induced strain of 1.7% was achieved at – 2000 V. The nonlinear ultrasonic transmission was shown to be well described by the piezoelectric and electrostrictive response of transmitter, except in the range of high negative exciting voltages where some limitation of the transmitted signal was observed. This limitation seems not to be a fundamental one and does not abolish the advantages of high-voltage excitation of polypropylene ferroelectret transducers. KW - Electromechanical effects KW - Ferroelectric devices KW - Piezoelectric transducers KW - Piezoelectricity KW - Ultrasonic transducers KW - Ultrasonic transmission KW - Cellular polypropylene KW - Ferroelectret KW - Electrostriction PY - 2012 U6 - https://doi.org/10.1063/1.4759052 SN - 0021-8979 SN - 1089-7550 VL - 112 IS - 8 SP - 084505-1 - 084505-6 PB - American Institute of Physics CY - Melville, NY AN - OPUS4-26806 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Köppe, Tabea A1 - Bartholmai, Matthias A1 - Werner, Klaus-Dieter A1 - Kammermeier, Michael T1 - Temperaturabhängige hochdynamische Untersuchungen des Systems Dehnungsmessstreifen/Klebstoff T2 - 16. GMA/ITG-Fachtagung, Sensoren und Messsysteme 2012 CY - Nuremberg, Germany DA - 2012-05-22 PY - 2012 N1 - Geburtsname von Köppe, Tabea: Wilk, T. - Birth name of Köppe, Tabea: Wilk, T. AN - OPUS4-26807 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Köppe, Tabea A1 - Bartholmai, Matthias A1 - Daum, Werner T1 - Introduction in the system of the Split Hopkinson pressure bar and the validation of the method T2 - 29th DANUBIA-ADRIA Symposium on Advances in Experimental Mechanics CY - Belgrade, Serbia DA - 2012-09-26 PY - 2012 N1 - Geburtsname von Köppe, Tabea: Wilk, T. - Birth name of Köppe, Tabea: Wilk, T. AN - OPUS4-26808 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Neumann, Patrick P. A1 - Bennetts, V. H. A1 - Bartholmai, Matthias T1 - Adaptive gas source localization strategies and gas distribution mapping using a gas-sensitive micro-drone T2 - 16. GMA/ITG-Fachtagung Sensoren und Messsysteme 2012 CY - Nuremberg, Germany DA - 2012-05-22 PY - 2012 AN - OPUS4-26809 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Sterthaus, Jens A1 - Ballheimer, Viktor A1 - Kuschke, Christian A1 - Linnemann, Konrad A1 - Wille, Frank T1 - Numerical Analysis of Bolted Trunnion Systems of Type B(U) Packages T2 - RAMTRANSPORT 2012 CY - London, England DA - 2012-05-22 PY - 2012 AN - OPUS4-26810 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Buzanich, Günter A1 - Radtke, Martin A1 - Reinholz, Uwe A1 - Riesemeier, Heinrich A1 - Thünemann, Andreas A1 - Streli, C. T1 - Impurities in multicrystalline silicon wafers for solar cells detected by synchrotron micro-beam X-ray fluorescence analysis N2 - We report on the trace analysis of copper and iron impurities in multicrystalline silicon wafers with the microbeam X-ray fluorescence (µ-XRF) technique. The efficiency of solar cells, which are based on multicrystalline silicon wafers, is strongly influenced by minor contamination with metals such as copper and iron. Application of compound refractive lenses (CRLs) in µ-XRF allows versatile two-dimensional mapping of relevant contaminations and localization of their sites of deposition. In this context, the measured bulk average limit of detection (LOD) was one picogram of iron and copper per gram of silicon. We suggest that µ-XRF is a valuable tool for non-destructive spatial (3D) quantification of metal impurities in a wide range of materials and devices whose functioning could be critically affected by impurities. KW - X-ray micro beam KW - Compound refractive lens KW - Solar cell KW - Silicon impurities PY - 2012 U6 - https://doi.org/10.1039/c2ja30188a SN - 0267-9477 SN - 1364-5544 VL - 27 IS - 11 SP - 1875 EP - 1881 PB - Royal Society of Chemistry CY - London AN - OPUS4-26791 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Krebber, Katerina A1 - Liehr, Sascha A1 - Lenke, Philipp A1 - Wendt, Mario T1 - POF sensors for structural health monitoring - applications and future demands (invited presentation) T2 - 21st International Conference on Plastic Optical Fibers, POF 2012 CY - Atlanta, GA, USA DA - 2012-09-10 PY - 2012 AN - OPUS4-26792 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Liehr, Sascha T1 - Verteilte faseroptische Sensoren und Anwendung im geotechnischen Monitoring T2 - Faseroptische Sensoren - Messsysteme mit Zukunft CY - Weimar, Germany DA - 2012-09-24 PY - 2012 AN - OPUS4-26793 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Mizuno, Yosuke A1 - Lenke, Philipp A1 - Krebber, Katerina A1 - Nakamura, K. T1 - Brillouin gain spectrum characterization in POF fabricated by different manifactures at 1.32 and 1.55 micrometers T2 - 21st International Conference on Plastic Optical Fibers, POF 2012 CY - Atlanta, GA, USA DA - 2012-09-10 PY - 2012 AN - OPUS4-26794 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Wendt, Mario A1 - Krebber, Katerina T1 - Using optical POF switches for distributed fiber optical strain measurements T2 - 21st International Conference on Plastic Optical Fibers, POF 2012 CY - Atlanta, GA, USA DA - 2012-09-10 PY - 2012 AN - OPUS4-26795 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Wosniok, Aleksander T1 - Brillouin gain spectrum characterization for temperature compensation in fiber optic distributed strain T2 - 22nd International Conference on Optical Fiber Sensors CY - Beijing, China DA - 2012-10-15 PY - 2012 AN - OPUS4-26796 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Bartholmai, Matthias A1 - Prager, Jens A1 - Köppe, Enrico T1 - Früherkennung von Strukturschäden mittels geführter Lamb-Wellen T2 - Sensor + Test 2012 CY - Nuremberg, Germany DA - 2012-05-22 PY - 2012 AN - OPUS4-26797 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - GEN A1 - Torge, Manfred A1 - Müller, Wolfgang A1 - Schaaf, U. T1 - Restaurierung von Holzfenstern KW - Restaurierung KW - Fenster PY - 2012 N1 - Sprachen: Deutsch/Polnisch - Languages: German/Polish IS - Faltblatt 8 SP - 1 EP - 8 PB - Druckhaus Köthen GmbH AN - OPUS4-26798 LA - mul AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Bajer, Kamila A1 - Braun, Ulrike T1 - Influence of polyamide (PA 6) during sterilization of biomedical devices T2 - MODEST 2012 CY - Prague, Czech Republic DA - 2012-09-02 PY - 2012 AN - OPUS4-26799 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Bartholmai, Matthias A1 - Prager, Jens A1 - Köppe, Enrico T1 - Early damage detection of structural defects using guided waves T2 - 6th European Workshop on Structural Health Monitoring - Structural Health Monitoring 2012 CY - Dresden, Germany DA - 2012-07-03 PY - 2012 AN - OPUS4-26800 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Sterthaus, Jens A1 - Ballheimer, Viktor A1 - Kuschke, Christian A1 - Wille, Frank T1 - Numerical Analysis of Bolted Trunnion ystems for Packages of Radioactive Materials T2 - ASME PVP 2012 CY - Toronto, Canada DA - 2012-07-12 PY - 2012 AN - OPUS4-26811 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Jaunich, Matthias A1 - Stark, Wolfgang A1 - Wolff, Dietmar T1 - Material behaviour of static seals at low temperatures T2 - 17th ISC Stuttgart 2012 CY - Stuttgart, Germany DA - 2012-09-13 PY - 2012 AN - OPUS4-26812 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Qiao, Linan A1 - Zencker, Uwe A1 - Völzke, Holger A1 - Wille, Frank A1 - Musolff, André T1 - Validation of Numerical Simulation Models for Transport and Storage Casks using Drop Test Results T2 - The Eleventh International Conference on Comutational Structures Technology CY - Dubrovnik, Croatia DA - 2012-09-04 PY - 2012 AN - OPUS4-26813 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Jaunich, Matthias A1 - Wolff, Dietmar A1 - Stark, Wolfgang T1 - Tieftemperaturverhalten und Alterung von Elastomerdichtungen - Aktuelle Tätigkeiten und Ziele T2 - Herbsttreffen der Bezirksgruppe Ost der Deutschen Kautschuk Gesellschaft e.V. CY - Dresden, Germany DA - 2012-11-28 PY - 2012 AN - OPUS4-26814 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Wolff, Dietmar T1 - Long-termin Storage and Aging Management issues in Dry Interim Cask Storage (international and national perspectives) T2 - Workshop KAERI (Korean Atomic Energy Research Institute) - BAM CY - Daejeon, South Korea DA - 2012-09-11 PY - 2012 AN - OPUS4-26815 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Wolff, Dietmar T1 - Experiences in safety evaluation of spent fuel cask designs for interim storage T2 - Workshop KAERI (Korean Atomic Energy Research Institute) - BAM CY - Daejeon, South Korea DA - 2012-09-11 PY - 2012 AN - OPUS4-26816 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Zencker, Uwe T1 - Finite Element Mesh Refinement Study for IAEA Pucture Drop Test T2 - 2012 Pressure Vessels & Piping conference CY - Toronto, Canada DA - 2012-07-15 PY - 2012 AN - OPUS4-26818 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Bethke, John T1 - Der CBRN-Aktionsplan der EU - Auswirkungen auf den Chemikalientransport! T2 - Chemikalien Sicher Transportieren - 2012 CY - Vienna, Austria DA - 2012-10-15 PY - 2012 AN - OPUS4-26819 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Goedecke, Thomas A1 - Bartholmai, Matthias A1 - Farahbakhsh, Mahin A1 - Hohendorf, Stefan A1 - Damm, David A1 - Daum, Werner T1 - "SMART IBC" für eine sichere und wirtschaftliche Gefahrgutlogistik T2 - IAA-Symposium "Gefahrgut" CY - Hanover, Germany DA - 2012-09-24 PY - 2012 AN - OPUS4-26820 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Lühl, Lars A1 - Mantouvalou, I. A1 - Malzer, W. A1 - Schaumann, I. A1 - Vogt, C. A1 - Hahn, Oliver A1 - Kanngiesser, B. T1 - Reconstruction procedure for 3D micro X-ray absorption fine structure N2 - A new approach for chemical speciation in stratified systems using 3D Micro-XAFS spectroscopy is developed by combining 3D Micro X-ray Fluorescence Spectroscopy (3D Micro-XRF) and conventional X-ray Absorption Fine Structure Spectroscopy (XAFS). A prominent field of application is stratified materials within which depth-resolved chemical speciation is required. Measurements are collected in fluorescence mode which in general lead to distorted spectra due to absorption effects. Developing a reliable reconstruction algorithm for obtaining undistorted spectra for superficial and in-depth layers is proposed and validated. The developed algorithm calculates the attenuation coefficients of the analyte for the successive layers facilitating a new spectroscopic tool for three-dimensionally resolved nondestructive chemical speciation. KW - X-ray absorption fine structure KW - 3D X-ray fluorescence analysis PY - 2012 U6 - https://doi.org/10.1021/ac202285d SN - 0003-2700 SN - 1520-6882 VL - 84 IS - 4 SP - 1907 EP - 1914 PB - American Chemical Society CY - Washington, DC AN - OPUS4-26941 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Schmid, C. A1 - Falkenhagen, Jana A1 - Beskers, T.F. A1 - Nguyen, L.-T.T. A1 - Wilhelm, M. A1 - Du Prez, F.E. A1 - Barner-Kowollik, C. T1 - Multi-block polyurethanes via RAFT end-group switching and their characterization by advanced hyphenated techniques N2 - The detailed characterization of poly(styrene)-b-poly(tetrahydrofuran) (pS-b-pTHF) multiblock copolymers (17800 g mol-1 ≤ Mn ≤ 46800 g mol-1) generated via urethane linkages is presented. The synthesis of the block copolymers is enabled via a mechanistic switch of the thiocarbonyl thio end group of a poly(styrene) to dihydroxyl terminated polymers that subsequently react with a diisocyanate terminated polytetrahydrofuran based prepolymer to form multiblock copolymer structures. The characterization of the multiblock copolymers and their substructures includes size exclusion chromatography (SEC), liquid chromatography at critical conditions (LCCC), nuclear magnetic resonance (NMR), and infrared (IR) spectroscopy as well as matrix-assisted laser desorption/ionization (MALDI) mass spectrometry. To obtain even further details of the polymer size and its composition, SEC with triple detection as well as newly developed SEC coupled online to IR spectroscopy was carried out. The quantification of the average block fractions via online SEC-IR (41–61 mol % pTHF) is in very good agreement with the results obtained via NMR spectroscopy (39–66 mol % pTHF). PY - 2012 U6 - https://doi.org/10.1021/ma301117k SN - 0024-9297 SN - 1520-5835 VL - 45 IS - 16 SP - 6353 EP - 6362 PB - American Chemical Society CY - Washington, DC AN - OPUS4-26942 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Beck, Uwe T1 - Charakterisierung idealer, realer und modifizierter Oberflächen für den sterilen Behälterbau N2 - Technische Oberflächen - im Anlieferungszustand oder modifiziert — werden hinsichtlich topographischer und energetischer Merkmale in der Abweichung von der »idealen « Oberfläche beschrieben. Die Topographie wird dabei durchgehend vom Makro- über den Mikro- bis in den Nano-Bereich mit den Methoden Streifenlichtprojektion (FP), Lichtmikroskopie (LM), mechanischem Tastschnitt (MS), Weißliehtinterferenzraikroskopie (WLIM), Rasterelektronen- (SEM) und Rasterkraftmikroskopie (AFM) erfasst. Replika-Verfahren ermöglichen dabei auch die indirekte Erfassung der Topographie an Bauteilen. Zur makroskopischen Bestimmung der Oberflächenenergie werden Randwinkelmessungen nach der Tropfen- bzw. der Plattenmethode herangezogen. Im Fokus stehen Materialien der Steriltechnik (Edelstahl, Emaille, PTFE), Passivschichten, Beschichtungen (Si02, a-C:H) und mikrostrukturierte Modelloberflächen (Silizium). Neben Standardisierungsaspekten (Mikro- vs, Nano-Rauheit) ist die Wechselwirkung der Oberflächen mit Partikeln (Haftung) von immanenter Bedeutung. Dabei sind Größe, Form und Plastizität der Partikel im Kontext mit der Oberflächentopographie zu betrachten. T2 - BMBF-Innovationsforum - Schützen und Veredeln von Oberflächen CY - Wildau, Germany DA - 28.02.2012 KW - Funktionelle Oberflächen KW - Oberflächentopographie KW - Oberflächenenergie KW - Haftung von Partikeln PY - 2012 SP - 59 EP - 68 AN - OPUS4-26943 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Beck, Uwe T1 - Plasmabeschichtungsverfahren - eine Übersicht N2 - Einleitend wird eine kurze Einordnung der Plasmaverfahren innerhalb der Beschichtungstechnologien vorgenommen. Die vielfältigen Möglichkeiten der Plasmaverfahren werden an Hand von Beispielen zu Sehichtfunktionalitäten, Produktemund:Anlagenkonzepten, erläutert. Es wird aufgezeigt, dass die Plasmaverfahren industriell angewandte Nanotechnologie sind und branchenübergreifend eine Schlüsseltechnologie darstellen, die in der Verschränkung mit der Nanotechnologie noch ein enormes Zukunftspotenzial aufweist, und; für alle Kernbranchen des Wirtschaftstandortes Deutschland unverzichtbar sind. Dieser Aufgabe widmen sich in Deutschland unter dem Dach von PLASMA Germany insbesondere die EFDS in Dresden und INPLAS in Braunschweig. Der in Cannes prämierte INPLAS-Film »Plasma leuchtet ein«, der unter Federführung des FhG IST in Braunschweig entstand, zeigt auf, in wie vielfältiger Weise die Plasmatechnik schon heute unseren Alltag bestimmt. T2 - BMBF-Innovationsforum - Schützen und Veredeln von Oberflächen CY - Wildau, Germany DA - 28.02.2012 KW - Funktionelle Schichten KW - Plasmabeschichtung KW - PVD KW - PECVD PY - 2012 SP - 37 EP - 40 AN - OPUS4-26944 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Köppe, Enrico A1 - Bartholmai, Matthias A1 - Prager, Jens T1 - Early damage detection of structural defects using guided lamb waves T2 - Workshop on Civil Structural Health Monitoring (CSHM-4) CY - Berlin, Germany DA - 2012-11-06 PY - 2012 AN - OPUS4-26945 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Wosniok, Aleksander A1 - Krebber, Katerina A1 - Glötzl, R. T1 - Brillouin-based Fiber Optic Sensor for Geotechnical Monitoring Applications T2 - Workshop on Civil Structural Health Monitoring Applications (CSHM-4) CY - Berlin, Germany DA - 2012-11-06 PY - 2012 AN - OPUS4-26946 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Wilke, Olaf A1 - Schulz, C. A1 - Richter, Matthias T1 - Test chamber measurements for the robustness validation of the test method for the determination of VOC-emissions for construction products into indoor air T2 - 10th International Conference Healthy Buildings 2012 CY - Brisbane, Australia DA - 2012-07-08 PY - 2012 AN - OPUS4-26948 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Jann, Oliver T1 - Emissionen aus Bauprodukten in die Luft - Neuere Entwicklungen T2 - Technikforum "Bauprodukte und gesunde Innenraumluft" CY - Düsseldorf, Germany DA - 2012-11-20 PY - 2012 AN - OPUS4-26949 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Hahn, Oliver T1 - Non-destructive analyses of writing materials T2 - Manuscript Coranica CY - Paris, France DA - 2012-10-17 PY - 2012 AN - OPUS4-26950 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Butz, Manuel A1 - Otremba, Frank A1 - Reich, Franziska T1 - Experimentelle und numerische Untersuchungen zu Unfallbelastungen an Gefahrgutbehältern mit Rahmenkostruktionen T2 - Präsentation Master-Thesis CY - Berlin, Germany DA - 2012-10-30 PY - 2012 AN - OPUS4-26891 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Duffner, Eric T1 - Überwachung der Fertigungsqualität von Faserverbund-Druckbehälern mittels Schallemissionsprüfung T2 - Materialica 2012 CY - Munich, Germany DA - 2012-10-23 PY - 2012 AN - OPUS4-26892 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Hoffmann, Martin T1 - Entwicklung und Validierung einer Race Track Probe (RT P) Development and validation of a racetrack specimen T2 - Materialica 2012 CY - Munich, Germany DA - 2012-10-23 PY - 2012 AN - OPUS4-26894 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Köppen, Robert A1 - Koch, Matthias T1 - Zertifizierte Referenzmaterialien und ihre Bedeutung für die Metrologie T2 - 2. Fresenius-Praktikertagung für Labor-Verantwortliche "Analytik & QS" CY - Mainz, Germany DA - 2012-11-07 PY - 2012 AN - OPUS4-26897 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Rosenberg, Marika A1 - Michael-Schulz, Heike A1 - Wehrstedt, Klaus-Dieter A1 - Malow, Marcus T1 - Validation of the UN test method N.5 T2 - 15th Annual symposium, Mary Kay O'Connor process safety center CY - College Station, TX, USA DA - 2012-10-23 KW - UN test N.5 KW - Water-reactive substance KW - Flammable gas PY - 2012 SN - 978-0-615-53719-1 SP - 826 EP - 835 AN - OPUS4-26898 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Baeßler, Matthias A1 - Bronsert, Jeffrey A1 - Cuéllar, Pablo A1 - Rücker, Werner ED - Pombo, J. T1 - The stability of ballasted tracks supported on vibrating bridge decks, abutments and transition zones N2 - The track on bridges is affected by cyclic and dynamic action arising from the train passage and the reaction of the track supporting structure. Concerning the track, the current bridge design procedures include two major engineering tasks: On the one hand the stability of the track supported on the bridge deck has to be satisfied. In order to reduce the deterioration of the track the elasticity of the track has to be adapted for the stiff bridge deck. Furthermore, lateral stability has also to be satisfied. The vibration of the bridge structure has to be taken into account because it can affect the stability of the ballasted track. On the other hand the transition zone between bridge structure, abutment and the track on the subgrade is a matter of permanent concern. The changes in stiffness, in the dynamic behavior arising from the rolling stock and the relative deflection between the bridge structure and the abutment induce a nearly unavoidable problem for the long term behaviour on the track. BAM has conducted intensive experimental work to study the behaviour of the ballasted track on dynamically excited bridges. The state of the art is a design value for the deck acceleration of 0.35 g as established in the ENV 1991-1. In our experimental investigations the design value was verified. The influence of a frequency content higher than 30 Hz and of single vibration amplitudes on the track deterioration was evaluated. Both vertical and lateral stability were investigated. The influence of vibrations on the lateral stability can be more severe since the lateral stability could involve a sudden failure of the track. Furthermore, a simulation tool was developed to calculate the lateral stability on a vibrating bridge deck. For this simulation tool a parameter study was undertaken [1] where combinations of the curvature of the bridge-track system, the design temperature and the bridge deck vibrations were investigated. Parts of this study are incorporated in this paper. In a current research project the investigations are extended to the interaction of the train-track-dynamics and the long term behaviour of the transition zone. The main emphasis is on the integration of the possible deterioration of the structural components in the numerical modelling of the relevant structural elements of the vehicle, the bridge and bridge abutment structure. An outlook is given to a complete model for the assessment of the track behaviour at railway bridges. T2 - 1st international conference on railway technology: research, development and maintenance CY - Las Palmas, Gran Canaria, Spain DA - 18.04.2012 KW - Ballast KW - Acceleration KW - Bridge deck KW - Track deterioration KW - Track stability KW - Transition zone PY - 2012 SN - 978-1-905088-53-9 U6 - https://doi.org/10.4203/ccp.98.13 SN - 1759-3433 N1 - Serientitel: Civil-Comp Proceedings – Series title: Civil-Comp Proceedings VL - 98 IS - Paper 13 SP - 1 EP - 20 PB - Civil Comp Press AN - OPUS4-26900 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - GEN A1 - Trapp, S. A1 - Algreen, M. A1 - Rein, A. A1 - Karlson, U. A1 - Holm, Olaf ED - Kästner, M. ED - Braeckevelt, M. ED - Döberl, G. ED - Cassiani, G. ED - Papini, M.P. ED - Leven-Pfister, C. ED - van Ree, D. T1 - Phytoscreening with tree cores KW - Phytoscreening KW - Chlorinated volatile organic compounds (VOC) KW - Mapping of subsurface pollution KW - Monitoring KW - Tree cores PY - 2012 SN - 978-88-95814-72-8 IS - Section 3 / Chapter 2 SP - 134 EP - 148 CY - Rome, Italy AN - OPUS4-26911 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Gebhardt, Moritz Oliver A1 - Gumenyuk, Andrey A1 - Quiroz Penaranda, Vanessa A1 - Rethmeier, Michael T1 - Laser/GMA hybrid welding of thick-walled precision pipes N2 - Thick-walled pipes made of steel are the basis of a large number of components in mechanical and installation engineering, e.g. for hydraulic components, in power station technology or in the petroleum industry. Particularly when strict positional and shape tolerances are demanded, the classical manufacturing process is chip-producing machining from the solid material. However, this is time-intensive and material-intensive. The laser/GMA hybrid processes with modern high-power lasers are a suitable alternative. With these processes, it is currently possible to weld components with a wall thickness up to approx. 15 mm with little distortion in one pass. However, in initial experiments, solidification cracks with longitudinal and vertical orientations in relation to the welding direction, so-called central line cracks, were established in welds on pipes. Within the framework of a research project, it was possible to determine the cause of the cracking and to find measures in order to avoid it. The technical boundary conditions could be complied with in this respect. The article gives an overview of the research project and the essential results. PY - 2012 SN - 1612-3433 VL - 11 IS - 5 SP - 312 EP - 318 PB - DVS - German Welding Society CY - Düsseldorf AN - OPUS4-26912 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Bachmann, Marcel A1 - Avilov, Vjaceslav A1 - Gumenyuk, Andrey A1 - Rethmeier, Michael T1 - Simulation of an inductive weld pool support for deep penetration laser beam welding of metal parts N2 - three-dimensional laminar steady state numerical model was used to investigate the influence of an altemating current (ac) magnetic field during single pass high power laser beam keyhole welding of 20 mm thick aluminum. The three-dimensional heat transfer, fluid dynamics and electromagnetic field equations were solved with the commercial finite element package COMSOL Multiphysics. Dominant physical effects of the process were taken into account: Thermo-capillary (Marangoni) convection at the upper and lower weld pool surfaces, natural convection due to the gravity influence and the latent heat of solid-liquid phase transition. Simulations were conducted for several magnetic field strengths and it was found that the gravity drop-out associated with welding of thick plates due to the hydrostatie pressure can be prevented by the application of an ac magnetic field below the weld specimen of around 70 mT (rms) at an oscillation frequency of 450 Hz. The inductive support System allows for single-pass laser beam welding of thick aluminum plates. The flow pattem in the molten zone and the temperature distributions are significantly changed by the application of the electromagnetic forces in the weld pool. KW - Electromagnetic weld pool support KW - Laser beam welding KW - Lorentz force KW - Marangoni stresses KW - Natural convection PY - 2012 SN - 1006-706X SN - 1001-0963 VL - 19 IS - Suppl. 1 SP - 114 EP - 117 PB - Ed. Board CY - Beijing AN - OPUS4-26913 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Bachmann, Marcel A1 - Avilov, Vjaceslav A1 - Gumenyuk, Andrey A1 - Rethmeier, Michael T1 - Fluid flow simulation of the influence of a steady magnetic field on the weld pool dynamics in deep penetration laser beam welding of aluminium N2 - A multi-physics numerical model was developed to investigate the influence of a steady magnetic field during partial penetration keyhole laser beam welding of an aluminum plate in flat position. Three-dimensional heat transfer, fluid dynamics including phase transition and electromagnetic field partial differential equations were solved with the finite element differential equation solver COMSOL Multiphysics. The magnetic field was aligned perpendicularly to the welding direction. The main objective of these simulations was to estimate the critical value of the magnetic field needed to suppress convective flows in the weld pool during high-power (up to 20 kW) laser beam welding of aluminum alloys with up to 20 mm deep weld pool. It reveals that steady magnetic fields with corresponding Hartmann numbers Ha^2 ~ 10^4 based on the half-width of the weld pool can effectively suppress convective flows in the weld pool. Moreover, the typically occurring wineglass-shape of the weld cross section caused by thermo-capillary flow is weakened. KW - Laser beam welding KW - Lorentz force KW - Marangoni stresses KW - Natural convection KW - Hartmann effect PY - 2012 SN - 1006-706X SN - 1001-0963 VL - 19 IS - Suppl. 1 SP - 467 EP - 470 PB - Ed. Board CY - Beijing AN - OPUS4-26914 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Krebber, Katerina A1 - Liehr, Sascha A1 - Witt, Jens ED - Liao, Y. ED - Jin, W. ED - Sampson, D.D. ED - Yamauchi, R. ED - Chung, Y. ED - Nakamura, K. ED - Rao, Y. T1 - Smart technical textiles based on fiber optic sensors T2 - OFS2012 - 22nd International conference on optical fiber sensors CY - Beijing, China DA - 2012-10-15 KW - Fiber optic sensor KW - Distributed fiber optic sensor KW - Polymer optical fibers (POF) KW - POF sensor KW - POF OTDR KW - Technical textiles KW - Geotextiles KW - Medical textiles PY - 2012 U6 - https://doi.org/10.1117/12.981342 SN - 0277-786X SN - 1996-756X N1 - Serientitel: Proceedings of SPIE – Series title: Proceedings of SPIE IS - 8421 SP - 84212A-1 - 84212A-10 PB - SPIE, the International Society for Optical Engineering CY - Bellingham, Wash. AN - OPUS4-26915 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Schneider, Rudolf A1 - Grandke, Julia T1 - Temperatureinfluss auf Immunoassays PY - 2012 SN - 1439-9598 SN - 1521-3854 VL - 60 IS - 11 SP - 1112 EP - 1113 PB - Wiley-VCH Verl. CY - Weinheim AN - OPUS4-26916 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Braun, Ulrike T1 - Beständigkeit von Polymeren: Aushärtungs- und Degradationskontrolle T2 - Workshop am Fraunhofer CSP CY - Halle (Saale), Germany DA - 2012-11-06 PY - 2012 AN - OPUS4-26917 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Burkert, Andreas T1 - Nichtrostender Stahl in Schwimmhallen T2 - 39. Sitzung des Kuratoriums Reinigungsmittel (RK und RE) der Deutschen Gesellschaft für das Badewesen e. V. CY - Essen, Germany DA - 2012-11-07 PY - 2012 AN - OPUS4-26918 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Hansen, Ulf A1 - Harwardt, T. A1 - Böhmert, L. A1 - Lichtenstein, D. A1 - Horzowski, S. A1 - Girod, Matthias A1 - Niemann, B. A1 - Thünemann, Andreas A1 - Lampen, A. T1 - Physikochemische Charakterisierung kommerziell erhälticher Slbernanopartikel und Untersuchung der Zytotoxizität an einer humanen Darmzelle T2 - 50. wissenschaftlicher Kongress der DGE CY - Bonn, Germany DA - 2012-03-20 PY - 2012 AN - OPUS4-26919 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Radtke, Martin A1 - Constantinescu, B. A1 - Vasilescu, A. A1 - Reinholz, Uwe A1 - Pichon, L. A1 - Pacheco, C. A1 - Oberländer-Tarnoveanu, E. T1 - SR-XRF and Micro-PIXE Studies on Ancient Metallurgy of Twelve Dacian Gold Bracelets T2 - SR2A 2012 CY - New York City, NY, USA DA - 2012-06-05 PY - 2012 AN - OPUS4-26920 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Constantinescu, B. A1 - Vasilescu, A. A1 - Radtke, Martin A1 - Reinholz, Uwe A1 - Pacheco, C. A1 - Pichon, L. A1 - Oberländer-Târnoveanu, E. T1 - SR XRF and micro-PIXE studies on ancient metallurgy of thirteen Dacian gold bracelets N2 - A thorough microscopic investigation by SR XRF and micro-PIXE brings insight into the probable techniques used in the manufacture of thirteen Dacian gold bracelets, one of the most spectacular archaeological finds ever on the territory of Romania. KW - Micro-SR-XRF KW - Micro-PIXE KW - Archaeometry KW - Gold KW - Romania PY - 2012 U6 - https://doi.org/10.1007/s00339-012-7306-7 SN - 0947-8396 VL - 109 IS - 2 SP - 395 EP - 402 PB - Springer CY - Berlin AN - OPUS4-26902 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Rogge, Andreas A1 - Thiele, Marc T1 - Damage evolution in concrete under high compressive cyclic loadings T2 - 3rd International Symposium on Life-Cycle Civil Engineering (IALCCE 2012) CY - Vienna, Austria DA - 2012-10-03 PY - 2012 AN - OPUS4-26903 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Schempp, Philipp A1 - Cross, C.E. A1 - Pittner, Andreas A1 - Rethmeier, Michael T1 - Influence of welding speed and grain refinement on grain morphology in aluminium GTA weld metal T2 - International Conference and Expo on Materials Science & Engineering CY - Chicago, IL, USA DA - 2012-10-22 PY - 2012 AN - OPUS4-26904 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Dombrowski, Felix A1 - Günster, Jens A1 - Berger, Georg A1 - Garcia Caso, P.W. A1 - Laschke, M.W. T1 - 3-D printed bioactive bone replacement scaffolds of alkali substituted orthophosphates containing meta- and di-phosphates T2 - Bioceramics24, ISCM CY - Fukuoka, Japan DA - 2012-10-21 PY - 2012 AN - OPUS4-26905 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Weltschev, Margit T1 - Schädenb an Tanks zum Transport von Gefahrgütern T2 - GfKORR Jahrestagung 2012 : Aus Schaden wird man klug CY - Frankfurt am Main, Germany DA - 2012-11-06 PY - 2012 AN - OPUS4-26906 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Krebber, Katerina A1 - Liehr, Sascha A1 - Witt, Jens A1 - Wosniok, Aleksander T1 - Smart Technical Textiles Based on Fibre Optic Sensors (invited lecture) T2 - 22nd International Conference on Optical Fiber Sensors (OFS-22) CY - Beijing, China DA - 2012-10-15 PY - 2012 AN - OPUS4-26907 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Wosniok, Aleksander T1 - Brillouin gain spectrum characteristics for temperature compensation in fiber optic distributed strain T2 - 22nd International Conference on Optical Fiber Sensors (OFS-22) CY - Beijing, China DA - 2012-10-15 PY - 2012 AN - OPUS4-26908 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Schukar, Vivien A1 - Habel, Wolfgang T1 - Fasersensorik-Schwerpunkte und -Aktivitäten in der Bundesanstalt für Materialforschung und -prüfung T2 - Workshop intelligeNDTE-BAM-"Windenergie" CY - Berlin, Germany DA - 2012-10-10 PY - 2012 AN - OPUS4-26909 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Peplinski, Burkhard A1 - Adam, Christian A1 - Adamczyk, Burkart A1 - Müller, Ralf A1 - Schadrack, Reinhard A1 - Michaelis, Matthias A1 - Emmerling, Franziska A1 - Menzel, Michael A1 - Reuther, H. T1 - Evidence of formation of the tridymite form of AlPO4 in some municipal sewage sludge ashes T2 - 13th European Powder Diffraction Conference (EPDIC13) CY - Grenoble, France DA - 2012-10-28 PY - 2012 AN - OPUS4-26910 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Ebell, Gino T1 - Potentialfeldmessung Aus- und Weiterbildung an der BAM T2 - Ecostra 2012 CY - Freiburg, Germany DA - 2012-10-25 PY - 2012 AN - OPUS4-26871 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Beck, Uwe A1 - Hielscher, Stefan T1 - Validierung der Zentrifugentechnologie zur Qualitätssicherung der Fügefestigkeit von Verklebungen mit bzw. der Haftfestigkeit von Beschichtungen auf Kunststoffen N2 - Die quantitative Prüfung der Füge-, Haft- und Verbundfestigkeit in N/mm2 war bisher nur mittels Zugprüfeinrichtung möglich. Insbesondere für flächig ausgebildete Werkstoffverbunde wie Verklebungen und Beschichtungen stellt dies ein immenses Problem dar, da keine zwei „Enden“ zum Einspannen zur Verfügung stehen. Beim Abreißversuch wird deshalb ein Prüfstempel aufgeklebt, der besser einzuspannen ist. Aber auch auf der Substratseite wird in der Regel eine spezielle Aufnahme benötigt. Zudem handelt es sich um aufwendige, schlecht reproduzierbare Einzelprüfungen. Trotz doppeltkardanischer Einspannung lässt sich die Einleitung von Querkräften nicht vollständig vermeiden. Diese Mängel werden mit der Zentrifugentechnologie weitgehend überwunden. In Tabelle 1 sind die entsprechenden Merkmale des Abreißversuches mittels Zugprüfeinrichtung bzw. Zentrifugentechnologie gegenübergestellt. T2 - 20. NDVaK - Neues Dresdner Vakuumtechnisches Kolloquium - Beschichtung, Modifizierung und Charakterisierung von Polymeroberflächen CY - Dresden, Germany DA - 25.10.2012 KW - Haftfestigkeit KW - Klebfestigkeit KW - Zugfestigkeitsprüfung KW - Zentrifugentechnologie PY - 2012 SN - 978-3-9812550-4-1 SP - 107 EP - 111 AN - OPUS4-26872 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Rurack, Knut T1 - Nanoparticle-based sensors: Striped cation-trappers N2 - Toxic metal cations in environmental samples can be detected with ultrahigh sensitivity through measurements of the tunnelling current across crosslinked films of nanoparticles decorated with striped monolayers of organic ligands. KW - Goldnanopartikel KW - Metallionen KW - Self-assembled monolayers KW - Sensoren PY - 2012 U6 - https://doi.org/10.1038/nmat3469 SN - 1476-1122 VL - 11 IS - 11 SP - 913 EP - 914 PB - Nature Publishing Group CY - Basingstoke AN - OPUS4-26873 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Burkert, Andreas A1 - Lehmann, Jens A1 - Ebell, Gino T1 - Elektrochemische Potentialfeldmessung zur Detektion von Bewehrungsstahlkorrosion T2 - Werkstofftechnik Fachgespräch Beton CY - Frankfurt am Main, Germany DA - 2012-10-31 PY - 2012 AN - OPUS4-26874 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Burkert, Andreas A1 - Burkert, Annette A1 - Lehmann, Jens T1 - Alternative Edelstahlgüten zu den klassischen nichtrostenden Austeniten T2 - 1. Praktikertagung im Metallhandwerk: Fachgerechte Auswahl und Verarbeitung von Edelstahl Rostfrei CY - Trier, Germany DA - 2012-12-30 PY - 2012 AN - OPUS4-26875 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Burkert, Andreas A1 - Lehmann, Jens T1 - Verfleckungen auf nichtrostenden Stählen - eine aktuelle Herausforderung T2 - 1. Praktikertagung im Metallhandwerk: Fachgerechte Auswahl und Verarbeitung von Edelstahl Rostfrei CY - Trier, Germany DA - 2012-12-30 PY - 2012 AN - OPUS4-26876 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Fettig, Ina A1 - Richter, Janine A1 - Philipp, Rosemarie A1 - Rosin, Claudia T1 - WP5: Feasiblility study for the preparation of reference materials Task 5.3: Study of interactions with containment T2 - ENV08 progress meeting CY - Berlin, Germany DA - 2012-10-31 PY - 2012 AN - OPUS4-26878 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Muhasilovic, M. A1 - Vela-Wallenschus, Iris A1 - Trobok, Z. A1 - Petrovic, A. A1 - Mededovic, A. A1 - Gacanin, E. ED - Eberhardsteiner, J. T1 - Propper choice of model for turbulence treatment while research on flow in large-scale CFD-domains T2 - ECCOMAS 2012 - 6th European congress on computational methods in applied sciences and engineering CY - Vienna, Austria DA - 2012-09-10 KW - Tunnel-fires KW - Prospective engineering KW - Confined fires KW - Traffic enclosures KW - k-epsilon treatment KW - LES-model KW - Large-scale CFD-domains PY - 2012 SN - 978-3-9502481-9-7 N1 - Geburtsname von Vela-Wallenschus, Iris: Vela, I. - Birth name of Vela-Wallenschus, Iris: Vela, I. SP - 1 EP - 20(?) AN - OPUS4-26879 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Schönhals, Andreas A1 - Purohit, Purv T1 - Structure property relationship of nanocomposites based on Polylactide and Layered Double Hydroxide T2 - Broadband Dielectric Spectroscopy and its Applications CY - Leipzig, Germany DA - 2012-09-03 PY - 2012 AN - OPUS4-26880 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Richter, Janine A1 - Lischka, Susanne A1 - Piechotta, Christian T1 - Analysis of arsenic species in fish after derivatization by GC-MS N2 - The derivatization of organoarsenic compounds by different reagents like thioglycolates or dithiols and the subsequent analysis by GC–MS as a molecular specific technique was investigated and described. The possible derivatization reagents methyl- and ethylthioglycolate (TGM and TGE), 1,3-propane- and 1,5-pentanedithiol (PDT and PeDT), which transfer the polar and nonvolatile analytes dimethylarsenate (DMA), monomethylarsonate (MMA), arsenite and arsenate into volatile compounds, were evaluated. The application for real samples like fish material was also studied. In addition the gas chromatographic separation and resolution was optimized and experiments were carried out to determine the highest derivatization rates. Derivatization reagents were evaluated in terms of quantity and stability of the formed chemical species. All derivatization products were characterized by mass spectrometry in order to identify the separated arsenic species. The most efficient conversion of DMA and MMA was observed by using ethylthioglycolate as derivatization agent. Finally, the derivatization procedure and the GC–MS-method were validated to determine linearity, precision, selectivity, analytical limiting values and recoveries. For the proposed method a limit of detection (LOD) of 5.8 pg for DMA and 14.0 pg for MMA was found. The accuracy was established by comparing the mean value measured for DMA in the certified reference material BCR-627 (tuna fish) with the certified one. MMA was not quantified in marine samples due to its low content. In shrimp samples DMA was not detectable. For codfish a DMA-content of 0.20±0.004 mg kg-1, for 'Surströmming' an amount of 0.38±0.02 mg kg-1 and for herring, which showed the highest amount of DMA, a content of 1.15±0.03 mg kg-1 was determined. KW - Arsenic species analysis KW - Monomethylarsonate KW - Dimethylarsenate KW - Derivatization KW - Gas chromatography KW - Mass spectrometry PY - 2012 U6 - https://doi.org/10.1016/j.talanta.2012.10.021 SN - 0039-9140 VL - 101 SP - 524 EP - 529 PB - Elsevier CY - Amsterdam AN - OPUS4-26931 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Müller, M.E.H. A1 - Steier, I. A1 - Köppen, Robert A1 - Proske, Matthias A1 - Korn, U. A1 - Koch, Matthias A1 - Siegel, David T1 - Cocultivation of phytopathogenic Fusarium and Alternaria strains affects fungal growth and mycotoxin production N2 - Aims: A laboratory study was conducted to evaluate the influence of cocultivation of toxigenic Fusarium (F.) and Alternaria (A.) fungi with respect to growth and mycotoxin production. Methods and Results: Fusarium culmorum Fc13, Fusarium graminearum Fg23 and two Alternaria tenuissima isolates (At18 and At220) were simultaneously or consecutively co-incubated on wheat kernels in an in vitro test system. Fungal biomass was quantified by determining ergosterol content. Three Fusarium toxins (DON, NIV and ZON) and three Alternaria toxins (AOH, AME and ALT) were analysed by a newly developed HPLC/MS/MS method. In simultaneous cocultures, the fungal biomass was enhanced up to 460% compared with individual cultures; Alternaria toxins were considerably depressed down to <5%. Combining At18 and At220 with Fg23 inhibited the toxin production of both fungal partners. In contrast, Fc13 increased its DON and ZON production in competitive interaction with both A. strains. Conclusions: The interfungal competitive effects aid the understanding of the processes of competition of both fungi in natural environments and the involvement of mycotoxins as antifungal factors. Significance and Impact of Study: Cocultivation significantly affects fungal growth and mycotoxin production of phytopathogenic Alternaria and Fusarium strains. The impact of mycotoxins on the interfungal competition is highlighted. KW - Alternaria KW - Cocultivation KW - Ergosterol KW - Fusarium KW - Interfungal competition KW - Multimycotoxin analysis PY - 2012 U6 - https://doi.org/10.1111/j.1365-2672.2012.05388.x SN - 1364-5072 VL - 113 IS - 4 SP - 874 EP - 887 PB - Wiley-Blackwell CY - Malden, Mass., USA AN - OPUS4-26932 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Montero-Calasanz, M.C. A1 - Göker, M. A1 - Pötter, G. A1 - Rohde, M. A1 - Spröer, C. A1 - Schumann, P. A1 - Gorbushina, Anna A1 - Klenk, H.-P. T1 - Geodermatophilus arenarius sp. nov., a xerophilic actinomycete isolated from Saharan desert sand in Chad N2 - A novel Gram-positive, aerobic, actinobacterial strain, CF5/4T, was isolated in 2007 during an environmental screening of arid desert soil in Ouré Cassoni, Chad. The isolate grew best in a temperature range of 28–40 °C and at pH 6.0-8.5, with 0-1 % (w/v) NaCl, forming brown-coloured and nearly circular colonies on GYM agar. Chemotaxonomic and molecular characteristics of the isolate matched those described for members of the genus Geodermatophilus. The DNA G + C content of the novel strain was 75.9 mol %. The peptidoglycan contained meso-diaminopimelic acid as diagnostic diaminoacid. The main phospholipids were phosphatidylethanolamine, phosphatidylcholine, phosphatidylinositol, diphosphatidylglycerol and a small amount of phosphatidylglycerol; MK-9(H4) was identified as the dominant menaquinone and galactose as diagnostic sugar. The major cellular fatty acids were branched-chain saturated acids: iso-C15:0 and iso-C16:0. The 16S rRNA gene showed 96.2–98.3 % sequence identity with the three members of the genus Geodermatophilus: G. obscurus (96.2 %), G. ruber (96.5 %), and G. nigrescens (98.3 %). Based on the chemotaxonomic results, 16S rRNA gene sequence analysis and DNA–DNA hybridization with the type strain of G. nigrescens, the isolate is proposed to represent a novel species, Geodermatophilus arenarius (type strain CF5/4T = DSM 45418T = MTCC 11413T = CCUG 62763T). KW - Xerophiles KW - Actinomycetes KW - Geodermatophilaceae KW - Taxonomy KW - Sahara desert PY - 2012 U6 - https://doi.org/10.1007/s00792-012-0486-4 SN - 1431-0651 SN - 1433-4909 VL - 16 IS - 6 SP - 903 EP - 909 PB - Springer CY - Tokyo AN - OPUS4-26933 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Saathoff, F. A1 - Cantré, S. A1 - Müller, Werner T1 - The new German filtration criteria for geosynthetics in landfill construction T2 - Euro GEO 5 - 5th European geosynthetics congress CY - Valencia, Spain DA - 2012-09-16 KW - Filtration KW - Geosynthetics KW - Landfill PY - 2012 SN - 978-0415-64340-5 VL - 5 IS - Topic: Transport SP - 264 EP - 268 AN - OPUS4-26934 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Miccoli, Lorenzo A1 - Pospísil, S. A1 - Müller, U. A1 - Hracov, S. T1 - Verhalten von Lehmstein- und Stampflehmwänden unter dynamischer Belastung und Effizienz von Bewehrungsmaßnahmen T2 - Lehm 2012 - 6. Internationale Fachtagung für Lehmbau CY - Weimar, Germany DA - 2012-10-05 KW - Earth blocks KW - Rammed earth KW - Static loads KW - Dynamic loads KW - Cyclic tests PY - 2012 SN - 978-3-00-039649-6 IS - Session C SP - 122 EP - 133 AN - OPUS4-26935 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Müller, U. A1 - Miccoli, Lorenzo A1 - Perrone, C. A1 - Ziegert, C. T1 - Vergleich und Modellierung der mechanischen Eigenschaften von Bauteilen aus Lehmsteinmauerwerk, Wellerlehm und Stampflehm T2 - Lehm 2012 - 6. Internationale Fachtagung für Lehmbau CY - Weimar, Germany DA - 2012-10-05 KW - Stampflehm KW - Lehmstein KW - Mauerwerk KW - Wellerlehm KW - Mechanische Eigenschaften PY - 2012 SN - 978-3-00-039649-6 IS - Session C SP - 320 EP - 331 AN - OPUS4-26936 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Trappe, Volker A1 - Günzel, Stephan A1 - Jaunich, Matthias T1 - Correlation between crack propagation rate and cure process of epoxy resins N2 - Fracture mechanics approaches are increasingly applied for the characterization of epoxy resin and adhesive mechanical properties. Therefore, the fracture toughness and crack resistance under static load ISO 13586 [1] are often regarded as state of the art to analyse material improvements. However, experimental investigations on fatigue behaviour, thus the crack propagation according to ISO 15850 [2], seem to be much more sensitive to characterize the materials for in service loading conditions. Firstly, an efficient testing concept was developed at BAM. In this framework, the geometry for a modified single edge notched tensile specimen (SET) was developed in order to assure appropriate resolution in measuring the crack length via a CCD-camera [3]. In the next step, the influence of the cure temperature on the fracture-mechanical properties was investigated. KW - Fracture toughness KW - Crack resistance KW - Fracture mechanics KW - Plastics KW - Crack propagation PY - 2012 U6 - https://doi.org/10.1016/j.polymertesting.2012.03.007 SN - 0142-9418 VL - 31 IS - 5 SP - 654 EP - 659 PB - Elsevier Science CY - Amsterdam [u.a.] AN - OPUS4-26937 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Günzel, Stephan A1 - Hickmann, Stefan A1 - Wittemeyer, Christian A1 - Trappe, Volker T1 - Effects of fiber orientation and moisture on the crack growth in short glass fiber reinforced polyamide N2 - Short glass fiber reinforced polyamides are increasingly used in automotive applications. Concepts and models are needed, which enable the prediction of the structural durability. The fiber orientation and the content of moisture have a major influence on the fracture mechanical properties and on the damage mechanisms. The complex crack growth behavior was investigated and described in an empirical model. PY - 2012 U6 - https://doi.org/10.1002/adem.201100337 SN - 1438-1656 VL - 14 IS - 10 SP - 867 EP - 872 PB - Wiley-VCH Verl. CY - Weinheim AN - OPUS4-26938 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Weltschev, Margit T1 - Schäden an Tanks zum Transport von Gefahrgütern T2 - GfKORR-Jahrestagung 2012 - Aus Schaden wird man klug CY - Frankfurt/M., Germany DA - 2012-11-06 KW - Tankcontainer KW - Tankfahrzeuge KW - Eisenbahnkesselwagen KW - Gefahrguttransport KW - Korrosionsschäden KW - Schadensursachen PY - 2012 SN - 978-3-935406-49-9 SP - 1 EP - 10(?) PB - DECHEMA AN - OPUS4-26939 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Rabin, Ira A1 - Schütz, R. A1 - Kohl, Anka A1 - Wolff, Timo A1 - Tagle, R. A1 - Pentzien, Simone A1 - Hahn, Oliver A1 - Emmel, S. T1 - Identification and classification of historical writing inks in spectroscopy: a methodological overview KW - Archaeometry KW - Non-destructive testing KW - Spectroscopy KW - Manuscript studies PY - 2012 SN - 2078-3841 VL - 3 SP - 26 EP - 30 PB - ESF CY - Strasbourg AN - OPUS4-26940 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Mix, Renate A1 - Friedrich, Jörg F. T1 - New Plasma Processes for Promotion of Adhesive Properties of Polymers T2 - The 5th International Symposium of PLACIA, Japan CY - Nagoya, Japan DA - 2012-10-24 PY - 2012 AN - OPUS4-26881 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Hennig, Andreas A1 - Hoffmann, Angelika A1 - Hoffmann, Katrin A1 - Jäger, Christian A1 - Würth, Christian A1 - Resch-Genger, Ute A1 - Borcherding, H. A1 - Schedler, U. A1 - Thiele, T. T1 - Scope and Limitations of Surface Functional Group Quantification Methods T2 - 4th EuCheMS Chemistry Congress CY - Prague, Czech Republic DA - 2012-08-26 PY - 2012 AN - OPUS4-26883 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Hennig, Andreas A1 - Hoffmann, Angelika A1 - Hoffmann, Katrin A1 - Jäger, Christian A1 - Hatami, Soheil A1 - Resch-Genger, Ute A1 - Borcherding, H. A1 - Schedler, U. A1 - Thiele, T. T1 - Spectroscopie Surface Functional Group Quantification Methods T2 - 23rd Lecture Conference on Photochemistry CY - Potsdam, Germany DA - 2012-10-08 PY - 2012 AN - OPUS4-26884 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Bartholmai, Matthias A1 - Neumann, Patrick P. T1 - Multifunctional Sensor for Monitoring of CO2 Underground Storage by Comprehensive and Spatially Resolved Measuring of Gas Concentrations, Temperature, and Structural Changes T2 - Greenhouse Gas Control Technologies (GHGT-11) Conference CY - Kyoto, Japan DA - 2012-11-18 PY - 2012 AN - OPUS4-26885 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Neumann, Patrick P. A1 - Bartholmai, Matthias A1 - Asadi, S. A1 - Bennetts, V. H. A1 - Lilienthal, A. T1 - Monitoring of CCS Areas Using Micro Unmanned Aerial Vehicles (MUAVs) T2 - Greenhouse Gas Control Technologies (GHGT-11) Conference CY - Kyoto, Japan DA - 2012-11-18 PY - 2012 AN - OPUS4-26886 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Niederleithinger, Ernst A1 - Hübner, M. A1 - Kauther, R. T1 - Qualitätssicherung überschnittener Bohrpfahlwände mit der Ultraschallmethode am Beispiel der Schleuse Dörverden T2 - Bauwerksdiagnose 2012 an BAM Berlin, Praktische Anwendungen Zerstörungsfreier Prüfungen und Zukunftsaufgaben CY - Berlin, Germany DA - 2012-02-23 PY - 2012 AN - OPUS4-26887 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Niederleithinger, Ernst A1 - Wunderlich, Carolin T1 - Influence of small Temperature Variations on the Ultrasonic Velocity in Concrete T2 - Quantitative Nondestructive Evaluation (QNDE) 2012 CY - Denver, CO, USA DA - 2012-07-15 PY - 2012 AN - OPUS4-26890 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Häßler, Dustin ED - Jasienko, J. T1 - The 'elliptical beams' in the winter palace in Saint Petersburg - structural assessment of a lightweight structure T2 - SAHC 2012 - 8th International conference on structural analysis of historical constructions CY - Wroclaw, Poland DA - 2012-10-15 KW - Elliptical beam KW - Winter Palace KW - State Hermitage Museum KW - Historical construction KW - Lightweight structure KW - Puddle steel KW - Structural analysis KW - FEM PY - 2012 SN - 978-83-7125-216-7 SN - 0860-2395 VL - 1 SP - 262 EP - 272 PB - DWE CY - Wroclaw, Poland AN - OPUS4-26861 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Füllbrandt, Marieke A1 - von Klitzing, R. A1 - Schönhals, Andreas T1 - Probing the internal morphology of different poly(N-isopropylacrylamide) systems by dielectric spectroscopy T2 - BDS 2012 (Broadband Dielectric Spectroscopy and its Applications) CY - Leipzig, Germany DA - 2012-09-03 PY - 2012 AN - OPUS4-26862 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Füllbrandt, Marieke A1 - von Klitzing, R. A1 - Schönhals, Andreas T1 - Probing the Thermal Collapse of Linear and Crosslinked Poly(N-isopropylacrylamide) by Dielectric Spectroscopy T2 - 19th Ostwald Kolloquium CY - Berlin, Germany DA - 2012-09-20 PY - 2012 AN - OPUS4-26863 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Mix, Renate A1 - Friedrich, Jörg F. T1 - Tailored interphase design - the key for effective application in the field of metal-polyolefin composites T2 - 11th APCPST (Asia Pacific Conference on Plasma Science and Technology) and 25th SPSM (Symposium on Plasma Science for Materials) CY - Kyoto, Japan DA - 2012-10-02 PY - 2012 AN - OPUS4-26864 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Schönhals, Andreas A1 - Yin, Huajie T1 - Glass Transition of Ultra-Thin Polymeric Layers Investigated by a Comination of Complementary Methods T2 - Broadband Dielectric Spectroscopy and its Applications CY - Leipzig, Germany DA - 2012-09-03 PY - 2012 AN - OPUS4-26865 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Schönhals, Andreas A1 - Yin, Huajie A1 - Cangialosi, D. A1 - Boucher, V. M. A1 - Alegria, A. A1 - Comenero, J. T1 - Are the termal Tg and the segmental dynamics in polymer thin films fully interdependent T2 - Broadband Dielectric Spectroscopy and its Applications CY - Leipzig, Germany DA - 2012-09-03 PY - 2012 AN - OPUS4-26866 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Schönhals, Andreas A1 - Krause, Christina A1 - Frick, B. A1 - Juranyi, F. A1 - Zorn, R. T1 - Neutron Scattering ti Investigate the Molecular Dynamics of Discotic Liquid Crystals in the Bulk and in the Nanoconfined State T2 - Trends and Perspectives in Neutron Scattering for Soft Matter and Biophysics CY - Tutzing, Germany DA - 2012-10-08 PY - 2012 AN - OPUS4-26867 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Kupsch, Andreas A1 - Lange, Axel A1 - Hentschel, Manfred P. A1 - Müller, Bernd R. T1 - Modeling and removal of edge artiffacts in radiography T2 - Institut für Energie- und Klimaforschung (IEK-3), FZJ CY - Jülich, Germany DA - 2012-10-30 PY - 2012 AN - OPUS4-26868 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Döring, Ingo T1 - Beförderung von beschädigten Lithiumbatterien nach den Gefahrgutvorschriften RID/ADR T2 - VDI-Fachkonferenz Batterieproduktion und Recycling CY - Stuttgart, Germany DA - 2012-10-14 PY - 2012 AN - OPUS4-26869 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Ebell, Gino T1 - Potentialfeldmessung an Stahlbetonbauwerken in Theorie und Praxis T2 - Ingenieurbautage 2012 CY - Freiburg, Germany DA - 2012-10-25 PY - 2012 AN - OPUS4-26870 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Batzdorf, Lisa A1 - Prinz, Carsten A1 - Panne, Ulrich A1 - Emmerling, Franziska T1 - Mechanochemical Synthesis of Co and Zn Oxalate Bipyridine Struktures and Reorganisation at high Temperatures T2 - 3rd International Conference on Metal-Organic Frameworks and Open Framework Compounds CY - Edinburgh, Scotland DA - 2012-09-16 PY - 2012 N1 - Geburtsname von Batzdorf, Lisa: Tröbs, L. - Birth name of Batzdorf, Lisa: Tröbs, L. AN - OPUS4-26921 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Radtke, Martin T1 - The colour Xray camera: basics, applications and perspectives T2 - Analytik 2012 CY - Beijing, China DA - 2012-03-23 PY - 2012 AN - OPUS4-26922 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Radtke, Martin T1 - Praktische Anwendung der Atomtheorie T2 - Galileo Gymnasium CY - Berlin, Germany DA - 2012-08-30 PY - 2012 AN - OPUS4-26923 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Radtke, Martin T1 - The colour Xray camera: basics, application and perspectives T2 - EXRS 2012 CY - Vienna, Austria DA - 2012-06-18 PY - 2012 AN - OPUS4-26925 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Radtke, Martin T1 - Die Himmelsscheibe von Nebra: Vermutungen und Fakten T2 - Schul- und Volkssternwarte CY - Dahlewitz, Germany DA - 2012-03-09 PY - 2012 AN - OPUS4-26927 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Gnutzmann, Tanja A1 - Kahlau, R. A1 - Scheifler, S. A1 - Rößler, E. A1 - Rademann, K. A1 - Emmerling, Franziska T1 - Fast crystallization of organic glass form T2 - SPP 1415 Symposium "Kristalline Nichtgleichgewichtsphasen - Theorie und Experiment" CY - Darmstadt, Germany DA - 2012-09-19 PY - 2012 AN - OPUS4-26928 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Reinholz, Uwe A1 - Röhrich, J. A1 - Damerow, T. A1 - Hahn, W. A1 - Denker, A. T1 - First experience with a Tandetron as proton injector for eye turnor therapy T2 - Symposium North Eastern Accelerator Personnal 2012 CY - Legnaro, Italy DA - 2012-10-01 PY - 2012 AN - OPUS4-26929 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Cuéllar, Pablo A1 - Baeßler, Matthias A1 - Georgi, Steven A1 - Rücker, Werner T1 - Porenwasserdruckaufbau und Bodenentfestigung um Pfahlgründungen von Offshore-Windenergieanlagen N2 - Die Gründung von Offshore-Windenergieanlagen erfordert oft die Installation von Stahl-Pfählen mit großem Durchmesser, entweder als Monopile- oder Mehrpfahl-Konfiguration (Jacket, Tripod, usw.). In dieser Veröffentlichung werden die Auswirkungen einer zyklischen lateralen Belastung auf Offshore-Pfahlgründungen untersucht. Hierbei wird besonderes Augenmerk auf die Entwicklung des Porenwasserdrucks im umgebenden gesättigten Boden gelegt. Es wird gezeigt, dass der progressive Aufbau von Porenwasserdruck zu erheblichen Veränderungen des Verhaltens der Gründung unter externer Belastung führen kann, die die Stabilität bzw. Gebrauchstauglichkeit der Anlage potenziell gefährden. Dazu werden auch einige Effekte, die während eines realistischen Sturms von moderater Stärke entstehen, untersucht. Die transiente Abminderung der Gründungssteifigkeit wird hierbei thematisiert. Die genannten Aspekte wurden von den Autoren mittels eines gekoppelten zweiphasigen numerischen Modells der Offshore-Gründung untersucht. Das verwendete Stoffgesetz für den Boden, im Rahmen der Theorie der verallgemeinerten Plastizität, kann wichtige Merkmale von zyklischem Bodenverhalten reproduzieren, wie z. B. die Tendenz zu einer fortschreitenden Verdichtung unter zyklischer Belastung, die für Verflüssigungsphänomene unter undränierten Bedingungen verantwortlich ist. Die Notwendigkeit der Verwendung eines solchen Ansatzes wird hier anhand von Vergleichsberechnungen mit einem einfacheren Stoffmodell bzw. mit einem ungekoppelten Modell erörtet. Abschließend werden einige Implikationen der untersuchten Fragenstellungen für die praktische Bemessung von Offshore-Monopiles diskutiert und spezifische Empfehlungen gegeben.--------------------------------------------------------------------------------------------------------------------------- For the installation of wind turbines in the offshore environment and their foundation in the seabed it is customary to employ large-diameter steel piles, either in monopile or multi-pile configurations (jacket, tripod, etc. ...). The effects of cyclic lateral loading on the offshore piles and particularly the possibility of a progressive accumulation of residual pore water pressure within the saturated embedding soil are discussed in this article. Here it is shown that this can lead to significant changes of their behaviour under external loading, which can potentially compromise the foundation's stability or serviceability. Furthermore, some of the singular effects arising during a realistic storm of moderate magnitude as well as their potential for transient damages to the foundation's stiffness are addressed in the paper. For the investigation of these phenomena the authors have employed a coupled bi-phasic analytical model of the offshore foundation. The constitutive model employed for the seabed, in the frame of the theory of Generalized Plasticity, can reproduce some complex features of cyclic soil behaviour such as the tendency for a progressive densification under cyclic loading, which is responsible for the soil liquefaction phenomena in undrained conditions. Finally, some implications and specific recommendations for the design of offshore monopiles in the frame of the limit states are provided. KW - Porenwasserdruckaufbau KW - Offshore-Pfahlgründung KW - Belastung KW - Zyklische KW - Pore pressure build-up KW - Offshore pile foundation KW - Cyclic loading PY - 2012 U6 - https://doi.org/10.1002/bate.201200031 SN - 0932-8351 SN - 1437-0999 SN - 0005-6820 SN - 0341-1052 SN - 0932-6359 SN - 0932-8351 VL - 89 IS - 9 SP - 585 EP - 593 PB - Ernst & Sohn CY - Berlin AN - OPUS4-26981 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Brehme, Sven A1 - Köppl, T. A1 - Schartel, Bernhard A1 - Fischer, O. A1 - Altstädt, V. A1 - Pospiech, D. A1 - Döring, M. T1 - Phosphorus polyester - an alternative to low-molecular-weight flame retardants in poly(butylene terephthalate)? N2 - Pyrolysis, fire behaviour and mechanical properties of a blend of poly(butylene terephthalate) (PBT) with a phosphorus polyester (PET-P-DOPO) are investigated and compared with PBT/aluminium diethylphosphinate (AlPi-Et) composites. The PBT/PET-P-DOPO is immiscible and exhibits gas-phase and condensed-phase activity, whereas AlPi-Et in PBT results mainly in flame inhibition. Only higher loadings of AlPi-Et yield significant condensed-phase activity. Using the same phosphorus content, PBT/PET-P-DOPO and PBT/AlPi-Et exhibit similar reductions in fire load (22%) and flame spread (17% assessed by fire growth rate, FIGRA), compared with PBT. In contrast to AlPi-Et, the addition of PET-P-DOPO does not decrease the tensile strength of PBT. Thus, PET-P-DOPO is an interesting alternative to low-molecular-weight flame retardants. KW - Aluminium phosphinate KW - Blends KW - 9, 10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide KW - Flame retardance KW - Polyesters PY - 2012 U6 - https://doi.org/10.1002/macp.201200072 SN - 1022-1352 SN - 1521-3935 VL - 213 IS - 22 SP - 2386 EP - 2397 PB - Wiley-VCH Verl. CY - Weinheim AN - OPUS4-26982 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - GEN A1 - Ballast, H. A1 - Ballenweg, R. A1 - Bordin, P. A1 - Buhn, J. A1 - Hahn, M. A1 - Schalau, Bernd A1 - Schönbucher, A. A1 - Seifert, U. A1 - Westphal, F. A1 - Wörsdörfer, K. ED - Pfeil, N. T1 - Quelltermberechnung bei störungsbedingten Stoff- und Energiefreisetzungen in der Prozessindustrie - Methodenübersicht und industrielle Anwendung KW - SEVESO III-Richtlinie KW - Störfall-Verordnung KW - Störausfallwirkungsbetrachtung PY - 2012 UR - http://www.processnet.org/index.php?id=3900&site=processnet_media SN - 978-3-89746-135-2 IS - Statuspapier SP - 1 EP - 238 PB - DECHEMA CY - Frankfurt/M. AN - OPUS4-26983 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Leubner, S. A1 - Hatami, Soheil A1 - Resch-Genger, Ute A1 - Lorenz, T. A1 - Joswig, J.-O. A1 - Eychmüller, A. T1 - Comprehensive Analytical Study of the Surface Chemistry of Semiconductor Nanocrystals T2 - Nanofair symposium CY - Dresden, Germany DA - 2012-06-12 PY - 2012 AN - OPUS4-26984 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Leubner, S. A1 - Hatami, Soheil A1 - Resch-Genger, Ute A1 - Lorenz, T. A1 - Joswig, J.-O. A1 - Gaponik, N. A1 - Eychmüller, A. T1 - Influence of the surface chemistry on the photoluminescence quantum yield of quantum dots T2 - JCF Frühjahrssymposium CY - Rostock, Germany DA - 2012-03-18 PY - 2012 AN - OPUS4-26985 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Leubner, S. A1 - Hatami, Soheil A1 - Resch-Genger, Ute A1 - Lorenz, T. A1 - Joswig, J.-O. A1 - Gaponik, N. A1 - Eychmüller, A. T1 - Comprehensive Analytical Study of the Surface Chemistry of Semiconductor Nanocrystals T2 - EuCheMS Summer School CY - Bari, Italy DA - 2012-06-17 PY - 2012 AN - OPUS4-26986 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Hatami, Soheil A1 - Würth, Christian A1 - Grabolle, Markus A1 - Resch-Genger, Ute A1 - Leubner, S. A1 - Lesnyak, V. A1 - Gaponik, N. A1 - Eychmüller, A. T1 - Photoluminescence Quantum Yield of Near-infrared Emissive Quantum Dots T2 - DPG conference CY - Berlin, Germany DA - 2012-03-25 PY - 2012 AN - OPUS4-26987 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Leubner, S. A1 - Hatami, Soheil A1 - Resch-Genger, Ute A1 - Gaponik, N. A1 - Eychmüller, A. T1 - Influence of the surface chemistry on the photoluminescence quantum yield of quantum dots T2 - Bundestagung CY - Leipzig, Germany DA - 2012-05-17 PY - 2012 AN - OPUS4-26988 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Leubner, S. A1 - Hatami, Soheil A1 - Resch-Genger, Ute A1 - Lorenz, T. A1 - Joswig, J.-O. A1 - Gaponik, N. A1 - Eychmüller, A. T1 - Surface Chemistry of Quantum Dots as a Main Issue in Determining Their Applicability T2 - ONSNO CY - Dresden, Germany DA - 2012-07-09 PY - 2012 AN - OPUS4-26989 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Hatami, Soheil A1 - Resch-Genger, Ute A1 - Würth, Christian A1 - Grabolle, Markus A1 - Leubner, S. A1 - Lesnyak, V. A1 - Gaponik, N. A1 - Eychmüller, A. T1 - Absolute Photoluminescence Quantum Yield Determination of Near-infrared Emissive Quantum Dots T2 - Photochemistry CY - Potsdam, Germany DA - 2012-10-08 PY - 2012 AN - OPUS4-26990 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Mohamed, Zeinab A1 - Friedrich, Jörg F. A1 - Krüger, Simone A1 - Hidde, Gundula A1 - Berger, Anka T1 - Deposition of thick polymer or inorganic layers with flame retardant properties by combination of plasma and spray processes T2 - Polymerwissenschaftliches Seminar der Polymertechnik und -physik, TU Berlin CY - Berlin, Germany DA - 2012-11-07 PY - 2012 AN - OPUS4-26971 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Schmidt, Martin A1 - Scheid, Marc A1 - Seifert, Alexander A1 - Böhme, Thilo A1 - Wehrstedt, Klaus-Dieter A1 - Bulin, Michael T1 - Bandbreiten sicherheitstechnischer Kenngrößen von Stäuben - Erarbeitung von Staubgruppen und zugehöriger Bandbreiten sicherheitstechnischer Kenngrößen auf der Grundlage vorhandener Daten zur Aufnahme in den Gemeinsamen Stoffdatenpool Bund / Länder T2 - VDI-Fachtagung - Sichere Handhabung brennbarer Stäube CY - Nürnberg, Germany DA - 2012-11-06 KW - Sicherheitstechnische Kenngrößen KW - Brennbare Stäube KW - Brandschutz KW - Explosionsschutz PY - 2012 SN - 978-3-18-092182-2 SN - 0083-5560 N1 - Serientitel: VDI-Berichte – Series title: VDI-Berichte VL - 2182 SP - 37 EP - 50 PB - VDI-Verl. CY - Düsseldorf AN - OPUS4-26973 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Kasch, Thomas A1 - Binder, Christian A1 - Hartwig, Peter A1 - Lehné, Siegfried T1 - Aktuelles zum Thema "Sicherer Umgang mit Sauerstoff" T2 - BAM-DIN-IGV-Jahrestreffen CY - Berlin, Germany DA - 2012-02-09 PY - 2012 AN - OPUS4-26974 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Thünemann, Andreas A1 - Bienert, Ralf A1 - Appelhans, Dietmar A1 - Voit, B. T1 - Core-shell structures of oligosaccharide-functionalized hyperbranched poly(ethylene imines) N2 - Hyperbranched poly(ethylene imine)s (PEIs) functionalized with maltose, maltotriose, and maltoheptaose form distinct core-shell globular nanoparticles as revealed by small-angle X-ray scattering (SAXS). The solution structures are quantified using the Beaucage unified exponential/power-law approach. SAXS results were confirmed with dynamic light scattering (DLS). We found that all PEI structures are completely insensitive to changes of temperature (5 °C < T < 80 °C) and pH (1 < pH < 10). This remarkable stability of a compact spherical polymeric structure makes the modified PEIs promising for a wide range of biomedical applications. KW - Colloids KW - Core-shell polymers KW - Nanoparticles KW - Polyamines KW - Small-angle X-ray scattering (SAXS) PY - 2012 U6 - https://doi.org/10.1002/macp.201100490 SN - 1022-1352 SN - 1521-3935 VL - 213 IS - 22 SP - 2362 EP - 2369 PB - Wiley-VCH Verl. CY - Weinheim AN - OPUS4-26975 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Schalau, Bernd T1 - Freistrahlmodelle im Vergleich T2 - DECHEMA Fortbildung: Stoff- und Energiefreisetzungen in der Sicherheitstechnik CY - Frankfurt am Main, Germany DA - 2012-11-13 PY - 2012 AN - OPUS4-26976 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Schalau, Bernd T1 - VDI Richtlinie 3783 Blatt 1; Ausbreitung von störfallbedingten Freisetzungen - Sicherheitsanalyse T2 - DECHEMA Fortbildung: Stoff- und Energiefreisetzungen in der Sicherheitstechnik CY - Frankfurt am Main, Germany DA - 2012-11-13 PY - 2012 AN - OPUS4-26977 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Wosniok, Aleksander ED - Liao, Y. ED - Jin, W. ED - Sampson, D.D. ED - Yamauchi, R. ED - Chung, Y. ED - Nakamura, K. ED - Rao, Y. T1 - Brillouin gain spectrum characteristics for temperature compensation in fiber optic distributed strain sensor T2 - OFS2012 - 22nd International conference on optical fiber sensors CY - Beijing, China DA - 2012-10-15 KW - Brillouin gain spectrum KW - BGS KW - Distributed Brillouin sensor KW - DBS KW - Fibre optic sensor KW - FOS KW - Brillouin optical frequency-domain analysis KW - BOFDA PY - 2012 U6 - https://doi.org/10.1117/12.974841 SN - 0277-786X SN - 1996-756X N1 - Serientitel: Proceedings of SPIE – Series title: Proceedings of SPIE IS - 8421 SP - 84219T-1 - 84219T-4 PB - SPIE, the International Society for Optical Engineering CY - Bellingham, Wash. AN - OPUS4-26978 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Lang, Cindy A1 - Hübert, Thomas T1 - A colour ripeness indicator for apples N2 - Ripeness and senescence of climacteric fruits are strongly related to the emission of ethylene gas. The ethylene emission of apples can be detected by a new developed ripeness indicator. This indicator is based on the reduction effect of ethylene causing colour changes in selected metal ions. The used molybdenum (Mo) chromophores change under the impact of ethylene in a colour spectrum from white/light yellow to blue because of a partial reduction of Mo(VI) to Mo(V). The sensitivity of molybdenum colour change reactions can be varied by composition and pH values (pH 1.4–pH 1.5) of used ammonium molybdate solution and thus adopted to different fruits and storage conditions. The indicator can be combined with a colour recognition sensor for quantitative measurements of colour change in the frame of the L*a*b* model. The b*-coordinate, reflecting changes from yellow to blue, and the luminance L* continuously vary with increasing ethylene emission. Results obtained with the indicator system were compared with direct determination of ethylene concentrations by gas chromatography (GC-FID). Furthermore, a descriptive sensory test was used to estimate the degree of ripeness. The indicator can be applied for ripeness gauge on single fruit or in paperboard crates. KW - Ripeness KW - Apples KW - Ethylene KW - Molybdenum blue KW - Indicator PY - 2012 U6 - https://doi.org/10.1007/s11947-011-0694-4 SN - 1935-5149 SN - 1935-5130 VL - 5 IS - 8 SP - 3244 EP - 3249 PB - Springer Science + Business Media CY - New York, NY, USA AN - OPUS4-26979 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Bronsert, Jeffrey A1 - Baeßler, Matthias A1 - Cuéllar, Pablo A1 - Rücker, Werner T1 - Numerische Modellierung der Fahrzeug-Fahrweg-Wechselwirkung an Brückenübergängen unter Berücksichtigung des Langzeitverhaltens N2 - In diesem Beitrag wird ein grundsätzliches Untersuchungskonzept für den Schienengebundenen Verkehr in Bezug auf das langzeitliche Verhalten am Brückenübergang vorgestellt. Das damit verbundene Ziel ist die Entwicklung eines numerischen Modells zu entwickeln, dass sowohl das Langzeitverhalten wie auch das kurzzeitdynamische Verhalten beschreibt, um konstruktive Lösungen zu entwickeln und zu optimieren. In einer ersten Phase wird der Brückenübergang mittels der FEM mit zwei unterschiedlichen Randmodellierungen für das FE-Gebiet modelliert. Die Ergebnisse der Modellierung mit einer Visko-Elastischen Randmodellierung und einer Randmodellierung mittels der Scaled-Boundary-Finite-Element Methode, werden miteinander verglichen. Unterschiede in der Wirkung auf kurzzeitdynamische Kenngrößen werden gezeigt, die heranzuziehen sind, um insbesondere Setzungen im Hinterfüllungsbereich des Brückenwiderlagers abzuschätzen. T2 - 4. VDI-Fachtagung - Baudynamik 2012 CY - Kassel, Germany DA - 25.04.2012 PY - 2012 SN - 978-3-18-092160-0 SN - 0083-5560 N1 - Serientitel: VDI-Berichte – Series title: VDI-Berichte VL - 2160 SP - 157 EP - 170 PB - VDI-Verl. CY - Düsseldorf AN - OPUS4-26980 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Erhard, Anton T1 - Diagnose von Bauteilen durch zerstörungsfreie Prüfung T2 - Hamburger NDT-Tage CY - Hamburg, Germany DA - 2012-11-14 PY - 2012 AN - OPUS4-26961 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Reinholz, Uwe A1 - Munnik, F. A1 - Michalak, P. P. A1 - Radtke, Martin A1 - Buzanich, Günter A1 - Merchel, S. A1 - Renno, A. D. A1 - Riesemeier, Heinrich T1 - Spatially-resolved analysis of natural minerals as carriers of high-tech metals and Rare Earth Elements: comparison of EPMA, PIXE and Sy-µXRF T2 - 13th INTERNATIONAL CONFERENCE ON NUCLEAR MICROPROBE TECHNOLOGY & APPLICATIONS 2012 CY - Lisbon, Portugal DA - 2012-07-22 PY - 2012 AN - OPUS4-26962 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - GEN A1 - Raedel, Martina A1 - Bücker, Michael T1 - Historic gold mosaics: composition and deterioration KW - Gold mosaics KW - Composition KW - Deterioration KW - Damage mechanism KW - Sample analysis with SEM KW - Database of gold mosaics PY - 2012 SN - 978-1-907975-77-6 SN - 0039-3630 SN - 2047-0584 VL - 57 IS - Suppl. 1 SP - S372 EP - S373 PB - Maney Publishing AN - OPUS4-26964 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Homberg, U. A1 - Baum, D. A1 - Prohaska, S. A1 - Kalbe, Ute A1 - Witt, K. J. T1 - Automatic extraction and analysis of realistic pore structures from muCT data for pore space characterization of graded soil T2 - ICSE6 - 6th International conference on scour and erosion CY - Paris, France DA - 2012-08-27 KW - Microtomography KW - Image analysis KW - Pore structure KW - Pore constriction KW - Suffosion KW - Graded soil PY - 2012 IS - ICSE6-181 SP - 345 EP - 352 AN - OPUS4-26965 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Hjelmar, O. A1 - Wahlström, M. A1 - Comans, R. A1 - Kalbe, Ute A1 - Grathwohl, P. A1 - Mehu, J. A1 - Schiopu, N. A1 - Hyks, J. A1 - Laine-Ylijoki, J. A1 - Van Zomeren, A. A1 - Krüger, Oliver A1 - Schoknecht, Ute A1 - Wendel, T. A1 - Abdelghafour, M. A1 - Borho, N. ED - Arm, M. ED - Vandecasteele, C. ED - Heynen, J. ED - Suer, P. ED - Lind, B. T1 - Robustness validation of two harmonized European leaching tests for assessment ot the leaching of construction products, including waste-based construction materials T2 - WASCON 2012 CY - Gothenburg, Sweden DA - 0201-05-30 KW - Tank leaching test KW - Percolation test KW - Robustness validation KW - Construction products PY - 2012 SP - 1 EP - 5(?) PB - ISCOWA and SGI AN - OPUS4-26966 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Pauli, Jutta A1 - Grabolle, Markus A1 - Resch-Genger, Ute A1 - Licha, K. A1 - Berkemeyer, J. T1 - Suitable Labels for Molecular Imaging - Influence of Dye Hydrophilicity on the Spectroscopic Properties of lgG Conjugates T2 - 23rd Lecture Conference on Photochemistry CY - Potsdam, Germany DA - 2012-10-08 PY - 2012 AN - OPUS4-26967 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Kalbe, Ute A1 - Krüger, Oliver A1 - Berger, Wolfgang A1 - Wachtendorf, Volker A1 - Hally, S. ED - Arm, M. ED - Vandecasteele, C. ED - Heynen, J. ED - Suer, P. ED - Lind, B. T1 - Development of leaching procedures for synthetic turf systems T2 - WASCON 2012 CY - Gothenburg, Sweden DA - 0201-05-30 KW - Waste rubber KW - Artificial turf KW - Leaching behaviour KW - Batch test KW - Column test PY - 2012 SP - 1 EP - 5(?) PB - ISCOWA and SGI AN - OPUS4-26968 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Despinasse, Marie-Claire A1 - Schartel, Bernhard T1 - Influence of the structure of aryl phosphates on the flame retardancy of polycarbonate/acrylonitrile-butadiene-styrene N2 - The impact of the chemical structure of four different aryl bisphosphates on the flame retardancy of bisphenol A polycarbonate/acrylonitrile–butadiene–styrene blends (PC/ABS) was investigated. The impact of the bridging unit was studied, by comparing bisphenol A bis(diphenyl phosphate) BDP with biphenyl bis(diphenyl phosphate) BBDP and hydroquinone bis(diphenyl phosphate) HDP; as well as the influence of an aromatic substitution by comparing BBDP with biphenyl bis (di-2,6-xylyl phosphate) BBXP. The blends were investigated in terms of pyrolysis (thermogravimetry TG, TG coupled with Fourier transformed infrared spectroscopy (FTIR) and mass spectrometry (MS)) and fire performance (cone calorimeter, LOI, UL 94). The decomposition temperature of the flame retardant is a main parameter enabling a condensed phase interaction with PC decomposition products. The phosphate esters reacting with phenolic groups during pyrolysis were shown to increase cross-linking and reduce the hydrolysis/alcoholysis of the carbonate group. Variation of the aromatic substitution with the use of biphenyl bis (di-2,6-xylyl phosphate) led to reduced performance, highlighting the importance of the reactivity of the flame retardant with the decomposing PC. KW - Bisphenol A polycarbonate/acrylonitrile–butadiene–styrene (PC/ABS) KW - Flame retardancy KW - Flammability KW - Phosphate esters KW - Pyrolysis PY - 2012 U6 - https://doi.org/10.1016/j.polymdegradstab.2012.07.005 SN - 0141-3910 SN - 1873-2321 VL - 97 IS - 12 SP - 2571 EP - 2580 PB - Applied Science Publ. CY - London AN - OPUS4-26969 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Roskosch, A. A1 - Adam, Christian A1 - Krüger, Oliver A1 - Wiechmann, B. T1 - Klärschlamm - Potenziale alternativer Verwertungswege N2 - In Deutschland werden gegenwärtig etwa 53 % der kommunalen Klärschlämme in Mono- und Müllverbrennungsanlagen sowie Kraft- und Zementwerken thermisch und 47 % stofflich, d.h. landwirtschaftlich (30 %) oder in landschaftsbaulichen Maßnahmen u.ä. verwertet (17 %). Bezogen auf die etwa 9,4 Mrd Kubikmeter Abwasser, die pro Jahr in Deutschland anfallen, kann von einem Potenzial von 75000 t Phosphor/a (davon ca. 67500 t P/a im Klärschlamm) ausgegangen werden. Bislang werden in der Literatur ca. 37 Verfahren zur abwasserseitigen Rückgewinnung von Phosphor beschrieben, die im Labor, im Technikumsmaßstab oder in Pilotanlagen erprobt worden sind. Weltweit wurden bisher ca. 12 davon großtechnisch umgesetzt. Etwa vier verschiedene Verfahrenstechniken lassen sich derzeit in Deutschland finden. Einige Verfahren arbeiten mit Ionenaustauschern, zum überwiegenden Teil handelt es sich jedoch um Fällungs- oder Kristallisationsverfahren, bei denen Magnesium-Ammonium-Phosphat (MAP, Struvit) entweder aus den Haupt- oder Nebenströmen einer Kläranlage oder aus dem Schlamm bzw. Schlammwasser gewonnen wird. Für den Nährstoff Phosphor konnte in den Klärschlammaschen ein Gehalt von durchschnittlich 7 % ermittelt werden. Daraus ergibt sich ein Potenzial von etwa 17500 t P/a (Tendenz steigend). Je nach Verfahren kann mit einem Rückgewinnungspotenzial von etwa 60 bis 90 % Phosphor aus der Asche (ca. 55 bis 80 % Pges bezogen auf den Kläranlagenzulauf) gerechnet werden KW - Klärschlamm KW - Phoshorrückgewinnung PY - 2012 SN - 1438-5716 SN - 0043-0986 IS - Sonderheft 2012 / Modernisierungsreport 2013 SP - 23 EP - 26 CY - Berlin AN - OPUS4-26970 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Constantinescu, B. A1 - Vasilescu, A. A1 - Stan, D. A1 - Radtke, Martin A1 - Reinholz, Uwe A1 - Buzanich, Günter A1 - Ceccato, D. A1 - Oberländer-Târnoveanu, E. T1 - Studies on archaeological gold items found in Romanian territory using X-ray-based analytical spectrometry N2 - This paper is an overview of the work developed by our group in the investigations of museum objects and alluvial gold, reflected in a series of studies published between 2000–2011, supplemented with new results, unpublished up-to-date. The X-ray based spectrometric techniques employed range from various X-Ray Fluorescence (XRF) investigations to ion beam analysis, including synchrotron radiation XRF and micro-Particle Induced X-ray Emission. The gold objects discussed are mainly part of the Sarmizegetusa Dacian hoards—spiraled bracelets (armbands) and coins. After obtaining in 2011 the permission of the Romanian authorities to take very small (1–2 mg) samples from the most 'unimportant' areas of the Dacian bracelets and several Koson staters, to analyze them by micro-SR-XRF at BESSY, in February 2012, the investigation of several micro-areas of 17 stater and 28 bracelet samples revealed important micro-structural inhomogeneity, especially in Sn and Cu. The same inhomogeneous micro-structure has been seen in Transylvanian alluvial gold. The analyses revealed details on the fingerprint of geological gold deposits and also the main characteristics of ancient gold metallurgy procedures used by the Dacians: a relatively low temperature (lower than Au melting point) and hammering during heating to obtain an ingot through sintering. The use of the sintering procedure was proved for the spiraled bracelets and the Koson without monogram coins, a tradition starting in the Bronze Age in Transylvanian gold processing. The existence of micro-inclusions of Ta-minerals in alluvial gold was also detected, explaining Ta trace presence in the artifacts from the Pietroasa hoard. KW - Micro-SR-XRF KW - Micro-PIXE KW - Archaeometry KW - Gold KW - Romania PY - 2012 U6 - https://doi.org/10.1039/c2ja30158j SN - 0267-9477 SN - 1364-5544 VL - 27 IS - 12 SP - 2076 EP - 2081 PB - Royal Society of Chemistry CY - London AN - OPUS4-26991 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Schempp, Philipp A1 - Cross, Carl Edward A1 - Schwenk, Christopher A1 - Rethmeier, Michael T1 - Influence of Ti and B additions on grain size and weldability of aluminium alloy 6082 N2 - Grain refinement is an important possibility to enhance the weldability of aluminium weld metal that is usually defined by its susceptibility to solidification cracking. In this study, grain refinement was achieved through the addition of commercial grain refiner containing titanium and boron to the GTA weld metal of aluminium alloy 6082. The weld metal mean grain size could be reduced significantly from about 70 µm to a saturated size of 21 µm with a change in grain shape from columnar to equiaxed. The grain refinement prevented the formation of centreline solidification cracking that was present only in welds with unrefined grain structure. A variation of torch speed led to a strong change of solidification parameters such as cooling rate that was measured in the weld metal and the corresponding solidification rate and thermal gradient. The ratio thermal gradient/growth rate (G/R) decreased from 50 K s/mm² (high torch speed) to 10 K s/mm² (low torch speed). However, the variation of torch speed did not change the tendency for solidification cracking. The microstructure of unrefined and completely refined weld metal was compared. The observed change in size and distribution of the interdendritic phases was related to the change in susceptibility to solidification cracking. KW - Aluminium KW - WIG-Schweißen KW - Kornfeinung KW - Schweißeignung KW - Heißrisse KW - Aluminium alloy KW - Solidification cracking KW - Weldability KW - GTA welding PY - 2012 SN - 0043-2288 SN - 1878-6669 VL - 56 IS - 09/10 SP - 95 EP - 104 PB - Springer CY - Oxford AN - OPUS4-26992 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Bachmann, Marcel A1 - Avilov, Vjaceslav A1 - Gumenyuk, Andrey A1 - Rethmeier, Michael T1 - Multi-physics process simulation of static magnetic fields in high power laser beam welding of aluminium N2 - A three-dimensional turbulent steady state numerical model was used to investigate the influence of a stationary magnetic field during partial penetration high power laser beam keyhole welding of thick aluminum parts. COMSOL Multiphysics was used to calculate the three-dimensional heat transfer, fluid dynamics and electromagnetic field equations. Thermo-capillary (Marangoni) convection at the upper weld pool surface, natural convection due to gravity and latent heat of solid-liquid phase transition were taken into account. It shows that the application of steady magnetic fields produces a braking Lorentz force in the melt based on the Hartmann effect. The flow pattern in the weld pool and also the temperature distribution and associated weld pool geometry thus change significantly. Convective flows in the melt can effectively be suppressed and the influence of thermo-capillary flow is diminished to a thin surface layer. T2 - COMSOL Conference 2012 CY - Milan, Italy DA - 10.10.2012 KW - Electromagnetic weld pool control KW - Laser beam welding KW - Lorentz force KW - Marangoni convection KW - Buoyancy PY - 2012 SN - 978-0-9839688-7-0 SP - 1 EP - 7 AN - OPUS4-26993 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Ewert, Uwe A1 - Müller, Christina A1 - Pavlovic, Mato A1 - Kanzler, Daniel A1 - Rosenthal, Martina A1 - Ronneteg, U. T1 - Die Rolle der ZfP-Zuverlässigkeitsanalyse für sicheres Produktdesign Multiparameter-PODt T2 - DGZfP-Jahrestagung CY - Graz, Austria DA - 2012-09-17 PY - 2012 AN - OPUS4-26994 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Jaunich, Matthias A1 - Wolff, Dietmar A1 - Stark, Wolfgang T1 - Low temperature properties of rubber seals - results of component tests T2 - 10th Fall rubber colloquium CY - Hannover, Germany DA - 2012-11-07 PY - 2012 SN - 978-3-9814076-1-7 IS - khk2012_jaunich.pdf SP - 1 EP - 8 AN - OPUS4-26995 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Bertovic, Marija A1 - Müller, Christina A1 - Fahlbruch, B. T1 - Human Factors Approach to the Acquisition and Evaluation of NDT Data (1)Introduction to Human Factors and Methodology T2 - 18th World Conference on Non Destructive Testing CY - Durban, South Africa DA - 2012-04-16 PY - 2012 AN - OPUS4-26996 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - RPRT A1 - Kalbe, Ute A1 - Krüger, Oliver A1 - Wachtendorf, Volker A1 - Berger, Wolfgang T1 - Umweltverträglichkeit von Kunststoff- und Kunststoffrasenbelägen auf Sportfreianlagen KW - Sportboden KW - Sportbodenbelag KW - Kunststoffbelag KW - Kunststoffrasenbelag KW - Kunstrasen KW - Schadstoff KW - Umweltverträglichkeit KW - Ökotoxizität PY - 2012 SN - 978-3-86884-522-8 IS - 2 SP - 1 EP - 261 PB - Sportverlag Strauß CY - Bonn AN - OPUS4-26997 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Bertovic, Marija A1 - Müller, Christina A1 - Gaal, Mate A1 - Kanzler, Daniel A1 - Ewert, Uwe A1 - Fahlbruch, B. A1 - Schombach, D. A1 - Pitkänen, J. A1 - Ronneteg, U. T1 - Human Factors Apporoach to the Acquisition and Evaluation of NDT Data (2). Examples of Experiments T2 - 18th World Conference on Non Destructive Testing CY - Durban, South Africa DA - 2012-04-16 PY - 2012 AN - OPUS4-26998 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - RPRT A1 - Weimann, Karin A1 - Matyschik, Jan A1 - Adam, Christian A1 - Schulz, T. A1 - Linß, E. A1 - Müller, A. T1 - Optimierung des Rückbaus/Abbruchs von Gebäuden zur Rückgewinnung und Aufbereitung von Baustoffen unter Schadstoffentfrachtung (insbes. Sulfat) des RCMaterials sowie ökobilanzieller Vergleich von Primär- und Sekundärrohstoffeinsatz inkl. Wiederverwertung N2 - Aufgrund der großen Massenströme ist das Recycling von Baurestmassen von besonderer Bedeutung für die Schonung von natürlichen Ressourcen. Eine wichtige Voraussetzung für ein hochwertiges Recycling, wie z.B. eine Wiederverwertung von aufbereitetem Bauschutt/Altbeton als rezyklierte Gesteinskörnung im Hochbau, ist die Einhaltung von Grenzwerten für Stör- und Schadstoffe. Dabei steht der Sulfatgehalt im Eluat von Bauschutt besonders im Fokus. In der vorliegenden Studie wird untersucht, wie durch die Optimierung von Abbrucharbeiten und Bauschuttaufbereitung hochwertige Gesteinskörnungen aus Altbeton gewonnen werden können. Anhand von Literatur- und Datenrecherchen werden zunächst Sulfatquellen in Gebäuden sowie verfügbare Abbruch- und Aufbereitungstechniken zusammengestellt. Am Beispiel von unterschiedlichen Gebäudetypen werden Szenarien für selektiven und nicht selektiven Abbruch (Schwerpunkt: Sulfatentfachtung) in Hinblick auf ihre Umweltwirkungen ökobilanziell bewertet. Ergänzt werden diese Bewertungen durch Untersuchungen an realen Bauschuttmaterialien und Abbruchprojekten. Auf dieser Basis werden Handlungsempfehlungen für die Gewinnung von hochwertigen RC-Gesteinskörnungen erarbeitet und diskutiert.----------------------------------------------------------------------------------------- Due to the large-scale mass flow of construction and demolition wastes, the recycling of those residues is of particular importance for the conservation of natural resources. An important requirement for recycling on a high level, like the reuse of crushed concrete as recycled concrete aggregate, is the observation of limits for hazardous substances and impurities. This study is focusing on the reduction of sulphates in the eluate of crushed concrete. An investigation of possibilities to optimize demolition and dismantling as well as treatment of crushed concrete with the objective of gaining recycled concrete aggregates of high quality. Based on a literature research and a data review the origins of sulfates in buildings and also the availability of techniques for demolition and treatment of crushed concrete are listed and evaluated. Using the examples of different building types scenarios for selective dismantling and non-selective demolition (focused on reducing suphates) are evaluated in terms of affecting the environment. In addition samples from real demolition construction sites and plants for treatment of construction rubble were investigated. Based on these results recommendations for the production of high quality recycled concrete aggregates are worked out. KW - Bauschuttaufbereitung KW - Abbruch KW - Ökobilanzielle Bewertung KW - RC-Beton KW - Gips KW - Abbruchverfahren KW - Hochwertiges Recycling KW - Ökobilanzielle Betrachtung KW - Sulfatentfachtung KW - Demolition/dismantling KW - Treatment of C&D wastes KW - High-grade recycling KW - Environmental LCA KW - Reduction of sulphates PY - 2012 UR - http://www.umweltbundesamt.de/publikationen/optimierung-des-rueckbausabbaus-von-gebaeuden-zur SN - 1862-4804 SP - 1 EP - 227 PB - Umweltbundesamt CY - Dessau-Roßlau AN - OPUS4-26999 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Bertovic, Marija A1 - Müller, Christina A1 - Ewert, Uwe A1 - Fahlbruch, B. T1 - Human Factors in Non-Destructive Testing: How to Tackle the Problem of the Variability in the Inspection Results? T2 - 6ih European Workshop on Structural Health Management (PHM) Society CY - Dresden, Germany DA - 2012-07-03 PY - 2012 AN - OPUS4-27000 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Schalau, Bernd T1 - Auswirkungsbetrachtungen bei sicherheitsrelevanten Anlagen/Störfallanlagen am Beispiel Biogasanlagen T2 - Weiterbildungsveranstaltung "Auswirkungsbetrachtungen bei sicherheitsrelevanten Anlagen/Störfallanlagen am Beispiel Biogasanlagen" CY - Güstrow, Germany DA - 2012-11-16 PY - 2012 AN - OPUS4-27031 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Schröder, Volkmar T1 - Grundlagen des Explosionsschutzes T2 - DECHEMA-Seminar "Explosionsschutz" CY - Frankfurt am Main, Germany DA - 2012-11-14 PY - 2012 AN - OPUS4-27032 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Schröder, Volkmar T1 - Sicherheitstechnische Kenngrößen von Gasen und Gasgemischen T2 - DECHEMA-Seminar "Explosionsschutz" CY - Frankfurt am Main, Germany DA - 2012-11-14 PY - 2012 AN - OPUS4-27033 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Schröder, Volkmar A1 - Molnarne, Maria T1 - CHEMSAFE - Verlässliche Datenquellen T2 - DECHEMAR-Seminar "Explosionsschutz" CY - Frankfurt am Main, Germany DA - 2012-11-14 PY - 2012 AN - OPUS4-27034 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Klemm, E. A1 - Liebner, Christian A1 - Heinrich, Sebastian A1 - Hieronymus, Hartmut A1 - Lange, Th. T1 - Partial Oxidation of o-Xylene to Phthalic Anhydride inside of the explosion regime using a micro structured reactor T2 - 2012 AlChE Annual Meeting CY - Pittsburgh, PA, USA DA - 2012-10-28 PY - 2012 AN - OPUS4-27035 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Schmidt, Martin A1 - Scheid, Marc A1 - Seifert, Alexander A1 - Böhme, Thilo A1 - Bulin, Michael A1 - Wehrstedt, Klaus-Dieter T1 - Bandbreiten sicherheitstechnischer Kenngrößen von Stäuben: Erarbeitung von Staubgruppen und zugehöriger Bandbreiten sicherheitstechnischer Kenngrößen auf Grundlage vorhandener Daten zur Aufnahme in den gemeinsamen Stoffdatenpool Bund/Länder T2 - VDI-Fachtagung "Sichere Handhabung brennbarer Stäube" CY - Nuremberg, Germany DA - 2012-11-06 PY - 2012 AN - OPUS4-27036 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Kittler, Katrin A1 - Schreiner, M. A1 - Krumbein, A. A1 - Koch, Matthias A1 - Rohn, S. A1 - Maul, Ronald T1 - Uptake of the Cyanotoxin Cylindrospermopsin by Brassica Species T2 - WMF meets IUPAC CY - Rotterdam, Netherlands DA - 2012-11-05 PY - 2012 AN - OPUS4-27037 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Grätz, Rainer A1 - Schröder, Volkmar T1 - History and present - Explosion protection in the BAM KW - History of BAM KW - Chemisch-Technische Reichsanstalt KW - Explosion protection KW - Chemical safety engineering PY - 2012 SN - 0176-0920 VL - 38 SP - 26 EP - 33 PB - Stahl CY - Waldenburg AN - OPUS4-27038 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Grätz, Rainer A1 - Schröder, Volkmar T1 - Geschichte und Gegenwart des Explosionsschutzes in der Bundesanstalt für Materialforschung und -prüfung KW - Geschichte der BAM KW - Chemisch-Technische Reichsanstalt KW - Explosionsschutz KW - Chemische Sicherheitstechnik PY - 2012 SN - 0176-2419 VL - 44 SP - 26 EP - 33 PB - Stahl CY - Künzelsau AN - OPUS4-27039 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Weise, Frank A1 - Maier, Bärbel A1 - Ehrig, Karsten T1 - Analyse der durch Frost- und Frost-Tausalz-Wechsel induzierten Schädigungsprozesse in Beton - Einsatz innovativer Prüftechniken KW - Beton KW - Frost- und Frost-Tausalz-Prüfung KW - CIF- und CDF-Prüfung KW - Röntgen-3D-CT KW - Photogrammetrie PY - 2012 U6 - https://doi.org/10.1002/best.201200056 SN - 0005-9900 SN - 1437-1006 VL - 107 IS - 12 SP - 1 EP - 8(?) PB - Ernst CY - Berlin AN - OPUS4-27040 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Baeßler, Matthias A1 - Rücker, Werner A1 - Cuéllar, Pablo A1 - Georgi, Steven A1 - Karabeliov, Krassimire T1 - Zum Tragverhalten von Gründungsstrukturen von Offshore-Windkraftanlagen T2 - Beiratssitzung "Werkstoffe und technische Systeme", BAM CY - Berlin, Germany DA - 2012-10-16 PY - 2012 AN - OPUS4-27021 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Doroshtnasir, Manoucher A1 - Krankenhagen, Rainer A1 - Maierhofer, Christiane A1 - Block, N. A1 - Binder, Ph. T1 - Volumenbestimmung an gasdurchflossenen Düsen mit Thermografie T2 - DGZfP-Jahrestagung CY - Graz, Austria DA - 2012-09-17 PY - 2012 AN - OPUS4-27022 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Richter, Regina A1 - Maierhofer, Christiane A1 - Kreutzbruck, Marc T1 - Untersuchungen zur 2D- und 3D-Rekonstruktion von Rückwandgeometrien in der Impuls-Thermografie T2 - DGZfP-Jahrestagung CY - Graz, Austria DA - 2012-09-17 PY - 2012 AN - OPUS4-27023 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Resch-Genger, Ute A1 - Hennig, Andreas A1 - Würth, Christian A1 - Hatami, Soheil A1 - Hoffmann, Angelika A1 - Hoffmann, Katrin A1 - Schedler, U. A1 - Borcherding, H. A1 - Huber, A. T1 - Dye-Biomolecule Conjugates and Fluorescent Particles - Spectroscopic Characterization and Application for Targeting of Disease-related Biomarkers T2 - Physikalisch-Chemisches Seminar CY - Hamburg, Germany DA - 2012-01-17 PY - 2012 AN - OPUS4-27024 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Bohse, Jürgen T1 - Schallemissionsprüfung - Grundlagen und aktuelle Entwicklungen T2 - Hamburger NDT-Tage 2012 CY - Hamburg, Germany DA - 2012-11-14 PY - 2012 AN - OPUS4-27025 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Kupsch, Andreas A1 - Tötzke, C. A1 - Manke, I. A1 - Arit, T. A1 - Markötter, H. A1 - Hilger, A. A1 - Wieder, F. A1 - Lehnert, W. A1 - Bohner, J. T1 - Three-dimensional studies on compressed gas diffusion layers and the water distribution in operating fuel cells using synchrotron X-ray imaging T2 - 222nd Electro Chemical Society Meeting CY - Honolulu, HI, USA DA - 2012-10-07 PY - 2012 AN - OPUS4-27026 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - von Oertzen, Alexander T1 - Forschungsprojekt der EU zur Verbesserung von Sprengstoffdetektionstechniken T2 - Internationales Symposium des BKA CY - Berlin, Germany DA - 2012-11-05 PY - 2012 AN - OPUS4-27027 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Helmerich, Rosemarie A1 - Bien, J. T1 - Theoretical and experimental analysis of historical bridges T2 - SAHC 2012 - 8th International conference on structural analysis of historical constructions CY - Wroclaw, Poland DA - 2012-10-15 PY - 2012 AN - OPUS4-27030 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Seneschal-Merz, Karine A1 - Feldmann, Ines A1 - Bücker, Michael A1 - Unger, Brita A1 - Raedel, Martina T1 - Development of durable transparent colours for the manufacture of decorated glass panels for applications outdoor T2 - 11th ESG Conference CY - Maastricht, Netherlands DA - 2012-06-04 PY - 2012 AN - OPUS4-26951 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Jaunich, Matthias A1 - Stark, Wolfgang A1 - Wolff, Dietmar T1 - Low temperature properties of rubber seals - Results of component tests - T2 - 10th Rubber Fall Colloquium CY - Hanover, Germany DA - 2012-11-07 PY - 2012 AN - OPUS4-26953 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Steinborn, Gabriele A1 - Gemeinert, Marion T1 - Methoden zur Charakterisierung von Nanopartikeln in wässriger Suspension T2 - Nano-Additive, BAM CY - Berlin, Germany DA - 2012-11-19 PY - 2012 AN - OPUS4-26954 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Weltschev, Margit T1 - Beständigkeit von Polythylenformstoffen und Dichtungswerkstoffen gegenüber Biokraftstoffen T2 - Gefahrgut-Technik-Tage Verpackungen, BAM CY - Berlin, Germany DA - 2012-11-12 PY - 2012 AN - OPUS4-26955 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Miccoli, Lorenzo A1 - Müller, U. T1 - Structural characterization of earthen materials. A comparision between earth block masonry, rammed earth and cob T2 - 8th International Conference SAHC 2012 CY - Wroclaw, Poland DA - 2012-10-15 PY - 2012 AN - OPUS4-26956 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Miccoli, Lorenzo A1 - Pospíšil, A1 - Müller, U. A1 - Hracov, T1 - Performance of earth block and rammed earth masonry under cyclic loading and reinforcement effectivity T2 - 6th International Conference on Building with Earth LEHM 2012 CY - Weimar, Germany DA - 2012-10-05 PY - 2012 AN - OPUS4-26957 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Miccoli, Lorenzo A1 - Silva, B. A1 - Da Porta, F. A1 - Hracov, A1 - Pospíšil, A1 - Adami, C.-E. A1 - Vintzileou, E. A1 - Vasconcelos, G. A1 - Poletti, E. T1 - Overview of different strengthening techniques applied on walls used in historical structure T2 - 8th International Conference SAHC 2012 CY - Wroclaw, Poland DA - 2012-10-15 PY - 2012 AN - OPUS4-26958 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Miccoli, Lorenzo A1 - Müller, U. A1 - Perrone, Ch. A1 - Ziegert, C. T1 - Vergleich und Modellierung der mechanischen Eigenschaften von Bauteilen aus Lehmsteinmauerwerk, Wellerlehm und Stampflehm T2 - 6th International Conference on Building with Earth LEHM 2012 CY - Weimar, Germany DA - 2012-10-05 PY - 2012 AN - OPUS4-26959 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Despinasse, Marie-Claire A1 - Schartel, Bernhard T1 - Halogen-free flame retardant combinations in Polycarbonate/Acrylonitrile-butadiene-styrene: possible routes towards a P-P synergy? T2 - ISFRMT 2012, 2nd International Symposium on Flame-Retardant Materials & Technologies CY - Chengdu, China DA - 2012-09-17 PY - 2012 AN - OPUS4-26960 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Kanzler, Daniel A1 - Müller, Christina A1 - Rosenthal, Martina A1 - Ewert, Uwe A1 - Pitkänen, J. T1 - AN APPROACH TO THE POD BASED ON REAL DEFECTS USING DESTRUCTIVE TESTING AND BAYESIAN STATISTICS T2 - 9th International Conference on NDE in Relation to Structural Integrity for Nuclear and Pressurized Components CY - Seattle, WA, USA DA - 2012-05-22 PY - 2012 AN - OPUS4-27011 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Kanzler, Daniel A1 - Müller, Christina A1 - Pitkänen, J. T1 - BAYESIAN APPROACH FOR EVALUATION OF THE RELIABILITY OF NON DESTRUCTIVE TESTING METHODS T2 - 18th World Conference on Non Destructive Testing CY - Durban, South Africa DA - 2012-04-16 PY - 2012 AN - OPUS4-27012 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Krüger, Simone A1 - Raspe, Tina A1 - Deubel, Jan A1 - Piechotta, Christian A1 - Fettig, Ina T1 - Chemisch-analytischer Nachweis von festen, flüssigen und gasförmigen Brandprodukten T2 - Brandsymposium CY - Bad Liebenstein, Germany DA - 2012-11-13 PY - 2012 AN - OPUS4-27013 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Kasparek, Eva Maria T1 - Aktueller Stand der Bauartprüfungen von KONRAD - Endlagerbehältern an der BAM T2 - TÜV Nord Seminar "Erfafhrungen mit den "neuen" Endlagerbedingungen" CY - Hanover, Germany DA - 2012-11-07 PY - 2012 AN - OPUS4-27014 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Skender, Marina A1 - Müller, Christina A1 - Boehm, Rainer A1 - Ronneteg, U. A1 - Pavlovic, Mato T1 - The multiparameter- POD applied in detection of the defects in the environment of nonhomogeneousultrasound attenuation T2 - The Review of Progress in Quantitative Nondestructive Evaluation (QNDE) CY - Denver, CO, USA DA - 2012-07-15 PY - 2012 AN - OPUS4-27015 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Bronsert, Jeffrey A1 - Baeßler, Matthias A1 - Cuéllar, Pablo A1 - Rücker, Werner T1 - Numerische Modellierung der Fahrzeug-Wechselwirkung an Brückenübergängen unter Berücksichtigung des Langzeitverhaltens T2 - VDI-Tagung Baudynamik CY - Kassel, Germany DA - 2012-04-25 PY - 2012 AN - OPUS4-27016 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Georgi, Steven A1 - Baeßler, Matthias A1 - Cuéllar, Pablo T1 - Verformungsakkumulation an Offshore-Pfahlgründungen unter zyklischer Belastung T2 - 32. Baugrundtagung CY - Mainz, Germany DA - 2012-09-26 PY - 2012 AN - OPUS4-27017 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Niederleithinger, Ernst A1 - Baeßler, Matthias A1 - Georgi, Steven A1 - Herten, M. T1 - Evaluation of the dynamic load test on bored piles in sandy soil T2 - IS-Kanazawa: The 9th International Conference on Testing and Design Methods for Deep Foundations CY - Kanazawa, Japan DA - 2012-09-18 PY - 2012 AN - OPUS4-27019 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Baeßler, Matthias A1 - Bronsert, Jeffrey A1 - Cuéllar, Pablo A1 - Rücker, Werner T1 - Stability of ballasted tracks on vibrating bridge decks and transition zones T2 - The first international Conference on Railway Technology CY - Las Palmas, Spain DA - 2012-04-16 PY - 2012 AN - OPUS4-27020 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Bertovic, Marija A1 - Müller, Christina A1 - Ewert, Uwe A1 - Fahlbruch, B. A1 - Pitkänen, J. A1 - Ronneteg, U. T1 - Human Factors in Non Destructive Testing: Identifying Risks and Ways of Preventing Them T2 - 9th International Conference on NDE in Relation to Structural Integrity for Nuclear and Pressurized Components CY - Seattle, WA, USA DA - 2012-05-22 PY - 2012 AN - OPUS4-27001 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Pecher, Heike Susanne A1 - Weller, Michael G. T1 - Preparation of an epoxide-based monolithic capillary column for enrichment of immunoglobulin G by affinity chromatography T2 - Potsdam Days on Bioanalysis 2012 CY - Potsdam, Germany DA - 2012-11-08 PY - 2012 AN - OPUS4-27002 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Bertovic, Marija A1 - Müller, Christina A1 - Ewert, Uwe A1 - Fahlbruch, B. A1 - Pitkänen, J. A1 - Ronneteg, U. T1 - Consideration of Human Factors in the Application of Human Redundancy and Automation of the Defect Detection Process T2 - 9th International Conference on NDE in Relation to Structural Integrity for Nuclear and Pressurized Components CY - Seattle, WA, USA DA - 2012-05-22 PY - 2012 AN - OPUS4-27003 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Müller, Christina A1 - Bertovic, Marija A1 - Pavlovic, Mato A1 - Kanzler, Daniel A1 - Ewert, Uwe A1 - Pitkänen, J. A1 - Ronneteg, U. T1 - The Holistic View on the Reliability of NDE Systems - Paradigm Shift T2 - 9th International Conference on NDE in Relation to Structural Integrity for Nuclear and Pressurized Components CY - Seattle, WA, USA DA - 2012-05-22 PY - 2012 AN - OPUS4-27004 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Müller, Christina A1 - Bertovic, Marija A1 - Pavlovic, Mato A1 - Kanzler, Daniel A1 - Ewert, Uwe A1 - Pitkänen, J. A1 - Ronneteg, U. T1 - Holistically Evaluating the Reliability of NDE Systems - Paradigm Shift T2 - 18th World Conference on Non Destructive Testing CY - Durban, South Africa DA - 2012-04-16 PY - 2012 AN - OPUS4-27005 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Pavlovic, Mato A1 - Müller, Christina A1 - Pitkänen, J. A1 - Ronneteg, U. T1 - Multi-Parameter Approach to Structural Integrity T2 - 9th International Conference on NDE in Relation to Structural Integrity for Nuclear and Pressurized Components CY - Seattle, WA, USA DA - 2012-05-22 PY - 2012 AN - OPUS4-27006 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Miccoli, Lorenzo A1 - Vintzileou, E. A1 - Valluzzi, M. R. A1 - Mazzon, N. A1 - Pospíšil, T1 - Systemic improvement of overall seismic response T2 - 8th International Conference SAHC 2012 CY - Wroclaw, Poland DA - 2012-10-15 PY - 2012 AN - OPUS4-27009 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Miccoli, Lorenzo A1 - Paganoni, S. A1 - D'Ayala, D. A1 - Hracov, A1 - Urushadze, S. A1 - Wünsche, M. A1 - Adami, C.-E. A1 - Vintzileou, E. A1 - Moreira, S. T1 - Connections and dissipative systems with early warning T2 - 8th International Conference SAHC 2012 (Structural Analysis of Historical Constructions) CY - Wroclaw, Poland DA - 2012-10-15 PY - 2012 AN - OPUS4-27010 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Jagenbrein, A. A1 - Tscheliesnig, P. A1 - Wachsmuth, Janne A1 - Bohse, Jürgen T1 - Detection of corrosion processes and fatigue cracks by means of acoustic emission monitoring KW - Acoustic emission monitoring KW - Corrosion processes KW - Fatigue cracks KW - Background noise KW - Signal classification KW - Transport products PY - 2012 SN - 0025-5300 VL - 54 IS - 11-12 SP - 769 EP - 778 PB - Hanser CY - München AN - OPUS4-27061 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Quiroz Penaranda, Vanessa A1 - Gumenyuk, Andrey A1 - Rethmeier, Michael T1 - Investigations on laser beam welding of high-manganese austenitic and austenitic-ferritic stainless steels KW - Laser welding KW - CO2- and Nd:YAG laser KW - Stainless austenitic and duplex steels KW - Higher manganese content KW - Process stability KW - Shielding atmosphere KW - Weld metal KW - Microstructure KW - Mechanical properties KW - Corrosion resistance PY - 2012 SN - 0957-798X VL - 1 SP - 10 EP - 14 PB - E. O. Paton Electric Welding Institute of the National Acad. of Sciences of Ukraine CY - Kyïv AN - OPUS4-27062 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Dorgerloh, Ute A1 - Theißen, H. T1 - Stabilisierung von Proben im Bereich der in-situ-Sanierung aktivierter Grundwasserproben T2 - Stabilisierung von Grundwasserproben zur Bestimmung organischer Schadstoffe - LFP Projekt B4.11 CY - Berlin, Germany DA - 2012-10-26 PY - 2012 AN - OPUS4-27063 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Yevtushenko, Oleksandra A1 - Bäßler, Ralph A1 - Carrillo-Salgado, I. T1 - Corrosion of pipeline steels due tot the condensation effects caused by SO2 and NO2 impurities in CO2 T2 - EUROCORR 2012 CY - Istanbul, Turkey DA - 2012-09-09 PY - 2012 AN - OPUS4-27064 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Schneider, Ronald A1 - Thöns, Sebastian A1 - Straub, D. ED - Strauss, A. ED - Frangopol, D.M. ED - Bergmeister, K. T1 - Probalistic fatigue crack growth modeling for reliability-based inspection planning N2 - The fatigue deterioration modeling for welded steel structures subjected to high cycle fatigue is presented in the current document. The aim of this paper is to formulate approaches based on actual Research results for the phases fatigue crack initiation, fatigue propagation and fatigue failure. The physical characteristics of the approaches are discussed in combination with the associated uncertainties and the probabilistic modeling of this time variant reliability problem. The fatigue deterioration modeling documented here serve as a basis for a reliability-based approach to inspection planning. T2 - 3rd International symposium on life-cycle civil engineering CY - Vienna, Austria DA - 03.10.2012 PY - 2012 SN - 978-0-415-62126-7 SP - 319 EP - 326 PB - CRC Press AN - OPUS4-27067 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Schneider, Ronald A1 - Thöns, Sebastian A1 - Straub, D. ED - Strauss, A. ED - Frangopol, D.M. ED - Bergmeister, K. T1 - Reliability-based inspection planning with application to orthotropic bridge deck structures subjected to fatigue N2 - A reliability-based approach to inspection planning for welded steel structures subjected to high cycle fatigue is presented in the current document. Inspections are an effective means to control the Progress of fatigue deterioration and the presented approach allows to determine the minimum required inspection effort so that the considered structure complies with the given risk acceptance criteria in terms of target reliability throughout its service life. T2 - 3rd International symposium on life-cycle civil engineering CY - Vienna, Austria DA - 03.10.2012 PY - 2012 SN - 978-0-415-62126-7 SP - 311 EP - 318 PB - CRC Press AN - OPUS4-27068 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Würth, Christian A1 - Resch-Genger, Ute T1 - Luminescence characterization with an integrating sphere T2 - Chebana - Upcare Joint Seminar CY - Regensburg, Germany DA - 2012-08-30 PY - 2012 AN - OPUS4-27069 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Hennig, Andreas A1 - Hoffmann, Angelika A1 - Hoffmann, Katrin A1 - Hatami, Soheil A1 - Würth, Christian A1 - Schedler, U. A1 - Borcherding, H. A1 - Thiele, T. A1 - Jäger, C. T1 - Quantification of Surface Funktional Groups by Spectroscopic Methods T2 - 23. Fachgruppentagung "Photochemie" der GDCh CY - Potsdam, Germany DA - 2012-10-08 PY - 2012 AN - OPUS4-27070 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Kannengießer, Thomas A1 - Kromm, Arne T1 - In situ synchrotron diffraction studies of phase transformation in steels T2 - European Science Symposium CY - Prague, Czech Republic DA - 2012-11-15 PY - 2012 AN - OPUS4-27111 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Goedecke, Thomas A1 - Daum, Werner A1 - Bartholmai, Matthias A1 - Damm, David A1 - Farahbakhsh, Mahin A1 - Hohendorf, Stefan T1 - Sicherheit von Gefahrguttransporten durch RFID-Tags - das Projekt SIGRID: Sensorfunktionalität mit integrierter Datenbank-GEFAHRGUT-Information T2 - 16. Gefahrgutkongress Meckelenburg-Vorpommern CY - Rostock, Germany DA - 2012-11-06 PY - 2012 AN - OPUS4-27112 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Wang, Y.-W. A1 - Descalzo López, Ana Belén A1 - Shen, Z. A1 - You, X.-Z. A1 - Rurack, Knut T1 - Dihydronaphthalene-fused Boron-dipyrromethene (BODIPY) dyes: insight into the electronic and conformational tuning modes of BODIPY fluorophones KW - Farbstoffe KW - Fluoreszenz KW - NMR-Spektroskopie KW - Synthese PY - 2012 U6 - https://doi.org/10.1002/chem.201201081 SN - 0947-6539 SN - 1521-3765 VL - 18 IS - 23 SP - 7306 EP - 7309 PB - Wiley-VCH Verl. CY - Weinheim AN - OPUS4-27113 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Gravenkamp, Hauke A1 - Prager, Jens A1 - Saputra, A. A. A1 - Song, C. T1 - The simulation of Lamb waves in a cracked plate using the scaled boundary finite element method N2 - The scaled boundary finite element method is applied to the simulation of Lamb waves for ultrasonic testing applications. With this method, the general elastodynamic problem is solved, while only the boundary of the domain under consideration has to be discretized. The reflection of the fundamental Lamb wave modes from cracks of different geometry in a steel plate is modeled. A test problem is compared with commercial finite element software, showing the efficiency and convergence of the scaled boundary finite element method. A special formulation of this method is utilized to calculate dispersion relations for plate structures. For the discretization of the boundary, higher-order elements are employed to improve the efficiency of the simulations. The simplicity of mesh generation of a cracked plate for a scaled boundary finite element analysis is illustrated. KW - Lamb waves KW - Scaled boundary finite element method KW - Dispersion KW - Structural dynamics KW - Cracks PY - 2012 U6 - https://doi.org/10.1121/1.4740478 SN - 0001-4966 SN - 1520-8524 VL - 132 IS - 3 SP - 1358 EP - 1367 PB - AIP CY - Melville, NY, USA AN - OPUS4-27115 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Völzke, Holger A1 - Wolff, Dietmar A1 - Kasparek, Eva Maria A1 - Drottleff, H. A1 - Botsch, W. A1 - Hinterding, P. A1 - Smalian, S. T1 - Safety aspects of dry spent fuel storage and spent fuel management T2 - European Nuclear Conference ENC 2012 CY - Manchester, England DA - 2012-12-09 PY - 2012 AN - OPUS4-27116 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Meinel, M. A1 - Schmidt, Wolfram A1 - Kühne, Hans-Carsten T1 - Betontechnologische Ansätze zur Erweiterung der Leistungsmerkmale von Betonpflastersteinen KW - Betonpflastersteine KW - Urban heat island effect PY - 2012 SN - 1439-7706 VL - 2 SP - 94 EP - 100 PB - ad-media-Verl. CY - Köln AN - OPUS4-27117 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Merkel, Stefan A1 - Dib, Baha A1 - Maul, Ronald A1 - Köppen, Robert A1 - Koch, Matthias A1 - Nehls, Irene T1 - Degradation and epimerization of ergot alkaloids after baking and in vitro digestion N2 - The degradation and epimerization of ergot alkaloids (EAs) in rye flour were investigated after baking cookies and subsequently subjecting them to an in vitro digestion model. Different steps of digestion were analyzed using salivary, gastric, and duodenal juices. The degradation and bidirectional conversion of the toxicologically relevant (R)-epimers and the biologically inactive (S)-epimers for seven pairs of EAs were determined by a HPLC method coupled with fluorescence detection. Baking cookies resulted in degradation of EAs (2–30 %) and a shift in the epimeric ratio toward the (S)-epimer for all EAs. The applied digestion model led to a selective toxification of ergotamine and ergosine, two ergotamine-type EAs. The initial percentage of the toxic (R)-epimer in relation to the total toxin content was considerably increased after digestion of cookies. Ergotamine and ergosine increased from 32 to 51 % and 35 to 55 %, respectively. In contrast, EAs of the ergotoxine type (ergocornine, α- and β-ergocryptine, and ergocristine) showed an epimeric shift toward their biologically inactive (S)-epimers. Further experiments indicated that the selective epimerization of ergotamine EAs occurs in the duodenal juice only. These results demonstrate that toxification of EAs in the intestinal tract should be taken into consideration. KW - HPLC-FLD KW - Claviceps purpurea KW - Rye KW - Ergotoxine KW - Ergotamine KW - Deoxynivalenol KW - Nivalenol KW - Zearalenone KW - Food KW - ERM KW - Quality assurance PY - 2012 U6 - https://doi.org/10.1007/s00216-012-6386-8 SN - 1618-2642 SN - 1618-2650 VL - 404 IS - 8 SP - 2489 EP - 2497 PB - Springer CY - Berlin AN - OPUS4-27119 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Bethke, John T1 - Machbarkeitsstudie "PET-Verpackungen für Gefahrgut" T2 - Sitzung des BAM AK Prüfstellen CY - Berlin, Germany DA - 2012-09-13 PY - 2012 AN - OPUS4-27120 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Weise, Frank A1 - Voland, Katja A1 - Pirskawetz, Stephan A1 - Meinel, Dietmar T1 - Analyse AKR-induzierter Schädigungsprozesse in Beton - Einsatz innovativer Prüftechniken KW - Beton KW - Frost- und Frost-Tausalz-Prüfung KW - CIF- und CDF-Prüfung KW - Röntgen-3D-CT KW - Photogrammetrie PY - 2012 U6 - https://doi.org/10.1002/best.201200049 SN - 0005-9900 SN - 1437-1006 VL - 107 IS - 12 SP - 1 EP - 11(?) PB - Ernst CY - Berlin AN - OPUS4-27041 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Schwarz, Silke A1 - Schäfer, Diana A1 - Krebs, Holger T1 - Vergleich zweier Prüfverfahren zur Bestimmung der Zündstärke von Sprengzündern: Unterwasser-Test und Plate-Dent-Test N2 - Zwei Verfahren, der Unterwasser-Test und der Plate-Dent-Test, wurden hinsichtlich ihrer Eignung zur indirekten Bestimmung der Zündstärke von Zündern untersucht. Die Einflüsse verschiedener Sekundärladungsmassen und unterschiedlichen Hülsenmaterials von Zündern standen hierbei im Vordergrund. Der Unterwasser-Test, bei dem als Maß für die Zündstärke die Stoß- und Blasenenergie eines Zünders ermittelt werden, erwies sich als probate und genaue Bestimmungsmethode. Zünder mit unterschiedlichen Sekundärladungsmassen waren eindeutig differenzierbar. Das Hülsenmaterial hatte nur einen vernachlässigbaren Einfluss auf die Ergebnisse. Der Plate-Dent-Test, bei dem die Abmaße des gebildeten Kraters zur indirekten Bestimmung der Zündstärke herangezogen werden, zeigte gegenteilige Effekte. Ab einem Ladungslänge-Durchmesser-Verhältnis von größer zwei war eine Differenzierung von Zündern verschiedener Sekundärladungsmasse nicht mehr möglich. Außerdem hatte das Hülsenmaterial einen signifikanten Einfluss auf die Kraterbildung. Der Plate-Dent-Test ist somit nur für den direkten Vergleich der Zündstärken baugleicher Zünder z. B. unter variierenden Umweltbedingungen geeignet.--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Two procedures – the underwater test and the plate-dent-test – were examined concerning their applicability for the indirect determination of the initiating capability of detonators. At this the focus was on the influence of varying explosive masses and different shell material. At the underwater test the initiating capability is determined indirectly by measurement and calculation of the shock and bubble energy. This method proved to be effective and accurate. Detonators with different secondary charge masses could be distinguished clearly and the shell material had only a negligible influence on the energy release. The plate-dent-test, at which the dimensions of the formed dent are an indirect measure for the initiating capability, showed the contrary effects. A differentiation of detonators was proved to be impossible when a relation of charge length to diameter greater than two was reached. Furthermore, it could be shown that the shell material had significant influence on the dent formation. Therefore, the plate-dent-test is only suitable for the direct comparison of identical detonators, e. g. under varying environmental conditions. KW - Zünder KW - Prüfung Zündstärke KW - Unterwassertest KW - Plate-Dent-Test PY - 2012 SN - 0941-4584 VL - 34 IS - 2 SP - 26 EP - 31 PB - Deutscher Sprengverband CY - Siegen AN - OPUS4-27042 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Mente, Tobias A1 - Böllinghaus, Thomas T1 - Wasserstoffunterstützte Rissbildung in geschweißten hochfesten Feinkornbaustählen T2 - 17. LWE Seminar - "Schweißen im Mobilkranbau" CY - Ehingen, Germany DA - 2012-11-08 PY - 2012 AN - OPUS4-27043 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Heunisch, Andreas T1 - Ceramic Multilayer - Technology and Application T2 - Klausurtagung des Graduiertenkolleg "TICMO" CY - Klingenberg, Germany DA - 2012-11-15 PY - 2012 AN - OPUS4-27046 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Rosemann, P. A1 - Heyn, Andreas A1 - Müller, Thoralf A1 - Babutzka, Martin A1 - Goebel, Michael T1 - Qualitätsbeurteilung von Schneidwaren mittels Elektrochemischen Rauschen T2 - GfKORR-Jahrestagung 2012 CY - Frankfurt am Main, Germany DA - 2012-11-06 PY - 2012 AN - OPUS4-27047 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Schmigalla, Sven A1 - Heyn, Andreas T1 - Bestimmung kritischer Lochkorrosionstemperaturen für NiCrMo-Legierungen mittels elektrochemischer Rauschmessungen T2 - GfKORR-Jahrestagung 2012 CY - Frankfurt am Main, Germany DA - 2012-11-06 PY - 2012 AN - OPUS4-27048 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Babutzka, Martin A1 - Heyn, Andreas A1 - Rosemann, P. T1 - Qualitätsbeurteilung von Schneidwaren mittels KorroPad T2 - GfKORR-Jahrestagung 2012 CY - Frankfurt am Main, Germany DA - 2012-11-06 PY - 2012 AN - OPUS4-27049 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Scheid, Marc A1 - Lohrer, Christian A1 - Schmidt, Martin T1 - Sichere Handhabung brennbarer Stäube T2 - DECHEMA Weiterbildungskurs "Grundlagen und rechtliche Anforderungen des Explosionsschutzes" CY - Frankfurt am Main, Germany DA - 2012-11-14 PY - 2012 AN - OPUS4-27050 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Behnke, Thomas A1 - Laux, M. A1 - Hoffmann, Katrin A1 - Resch-Genger, Ute A1 - Peters, S. A1 - Haueisen, J. A1 - Klemm, M. T1 - Simple Approaches to Fluorescence Lifetime Standards Using Dye-Quencher Pairs T2 - BMT 2012 - Tagung der Biomedizinischen Technik CY - Jena, Germany DA - 2012-09-16 PY - 2012 AN - OPUS4-27071 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Hatami, Soheil A1 - Würth, Christian A1 - Grabolle, Markus A1 - Resch-Genger, Ute A1 - Leubner, S. A1 - Lesnyak, V. A1 - Eychmüller, A. T1 - New Integrating sphere setup for the determination of the absolute photoluminescence quantum yield of near-infrared emissive fluorophores in the spectral region from 600 nm to 1600 nm T2 - Nano-Additive CY - Berlin, Germany DA - 2012-11-19 PY - 2012 AN - OPUS4-27072 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Fidan, Zerrin A1 - Resch-Genger, Ute T1 - Das ResCheck-Projekt - Nachweis von Infektionserregern mitels POCT T2 - Point-of-Care SYMPOSIUM CY - Munich, Germany DA - 2012-11-08 PY - 2012 AN - OPUS4-27073 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Bothe, Martin A1 - Pretsch, Thorsten T1 - Two-way shape changes of a shape-memory poly(ester urethane) N2 - Phase-segregated PEU exhibits two-way shape changes under various constant stresses. Most distinct actuation (expansion on cooling and contraction on heating) can be detected between +60 and -20 °C when the maximum stress applied during a thermo-mechanical pretreatment approached the point where deformation-induced crystallization of the PBA soft segment sets in. The driving forces for the strain-related two-way shape changes consist of PBA crystallization and PBA melting-induced entropy elasticity. At low constant stresses (<1.5 MPa), entropy elasticity also contributes to specimen expansion on cooling. The results of multiple- cycling experiments imply that PEU is an appropriate candidate for the fabrication of thermoresponsive actuators working under constant stress conditions. KW - Actuation KW - Entropy elasticity KW - Mechanical properties KW - Phase change KW - Polymorphism KW - Poly(ester urethane) KW - Poly(1,4-butylene adipate) KW - Semi-crystallinity KW - Shape memory polymers KW - Stimuli-sensitive polymers KW - Stress KW - Two-way actuator KW - Two-way shape memory PY - 2012 U6 - https://doi.org/10.1002/macp.201200096 SN - 1022-1352 SN - 1521-3935 VL - 213 IS - 22 SP - 2378 EP - 2385 PB - Wiley-VCH Verl. CY - Weinheim AN - OPUS4-27074 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Kaiser, Martin A1 - Würth, Christian A1 - Resch-Genger, Ute A1 - Kynast, U. A1 - Vorsthove, M. T1 - Optische Eigenschaften von der Cer-dotierten Yttrium Aluminium Granat (YAG:Ce) Nanopatikeln T2 - Arbeitsgruppenseminar AG Hoffmann (TU-Berlin) CY - Berlin, Germany DA - 2012-01-10 PY - 2012 AN - OPUS4-27075 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Kaiser, Martin A1 - Würth, Christian A1 - Resch-Genger, Ute A1 - Kynast, U. A1 - Felbeck, T. A1 - Vorsthove, M. T1 - Luminescence Properties of Cer-dotierten Yttrium-Aluminium-Garnet (YAG:Ce) Nanoparticles T2 - Upcore Joint Seminar CY - Regensburg, Germany DA - 2012-08-30 PY - 2012 AN - OPUS4-27076 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Kaiser, Martin A1 - Resch-Genger, Ute A1 - Würth, Christian A1 - Kynast, U. A1 - Felbeck, T. A1 - Vorsthove, M. T1 - Inflluence of the Particle Size on the Optical Properties of YAG:Ce T2 - Photochemie Tagung CY - Potsdam, Germany DA - 2012-10-08 PY - 2012 AN - OPUS4-27077 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Kaiser, Martin A1 - Resch-Genger, Ute A1 - Würth, Christian A1 - Kynast, U. A1 - Felbeck, T. A1 - Vorsthove, M. T1 - Inflluence of the Particle Size on the Optical Properties of YAG:Ce T2 - Fachtagung Nano-Additive CY - Berlin, Germany DA - 2012-11-19 PY - 2012 AN - OPUS4-27078 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Kaiser, Martin A1 - Resch-Genger, Ute A1 - Würth, Christian A1 - Kynast, U. A1 - Felbeck, T. A1 - Vorsthove, M. T1 - Luminescence Properties of Cer-dotierten Yttrium-Aluminium-Garnet (YAG:Ce) Nanoparticles - Absolute Quantum Yields and Influence of Particle Size T2 - DPG Frühlingstagung CY - Berlin, Germany DA - 2012-03-29 PY - 2012 AN - OPUS4-27079 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Linck, Lena A1 - Kapusta, P. A1 - Resch-Genger, Ute T1 - Spectroscopic and photophysical properties of dUTP and internally DNA bound fluorophores for optimized signal detection in biological formats N2 - Efficient signal generation in DNA-based assays requires understanding of the influence of fluorophore’s interactions on the spectroscopic properties. The resulting changes in fluorescence intensity, quantum yield, emission anisotropy, and fluorescence lifetime provide straightforward tools for the study of molecular dynamics and interaction between labels and nucleic acids. Searching for bright fluorescent reporters for rolling circle amplification (RCA) as efficient signal enhancement strategy for biological formats, we investigated the spectroscopic properties of seven dyes: cyanines, rhodamines, and BODIPYs. They spectrally resemble Cy3, the most frequently used fluorophore in biodetection formats, and are measured in six samples (free dye, dye-dUTP, internally labeled ssDNA and dsDNA—single- and triple-labeled) using steady-state and time-resolved fluorometry. Special emphasis was dedicated to characterizing the nature of the interaction of these fluorophores differing in dye class, charge, and rigidity. Our results suggest dye charge and structure as main factors governing the dye’s interactions, with DY-555 and Cy3B presenting the best candidates for our envisaged signal amplification strategy. This label comparison underlines the importance of a proper understanding of structure-property relations and dye–biomolecule interactions for reporter choice and presents a road map towards the design and interpretation of experiments using these labels on DNA of known sequence. KW - DNA KW - Fluorescent dye KW - Fluorescence quantum yield KW - Cyanine KW - Rhodamine KW - Fluorescence lifetime KW - Guanosine quenching PY - 2012 U6 - https://doi.org/10.1111/j.1751-1097.2012.01119.x SN - 0031-8655 SN - 1751-1097 VL - 88 IS - 4 SP - 867 EP - 875 PB - American Society for Photobiology CY - Augusta, Ga. AN - OPUS4-27080 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Bethke, John T1 - Revision der BAM-GGR002 T2 - Sitzung des BAM AK Inspektionsstellen CY - Berlin, Germany DA - 2012-09-11 PY - 2012 AN - OPUS4-27121 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Wolf, S. E. A1 - Lieberwirth, I. A1 - Natalio, F. A1 - Bardeau, J.-F. A1 - Delorme, N. A1 - Emmerling, Franziska A1 - Barrea, R. A1 - Kappl, M. A1 - Marin, F. T1 - Merging models of biomineralisation with concepts of nonclassical crystallisation: is a liquid amorphous precursor involved in the formation of the prismatic layer of the Mediterranean Fan Mussel Pinna nobilis? N2 - The calcitic prisms of Pinna nobilis (Pinnidae, Linnaeus 1758) are shown to be perfect examples of a mesocrystalline material. Based on their ultrastructure and on the occurrence of an amorphous transient precursor during the early stages of prism formation, we provide evidence for the pathway of mesocrystallisation proposed by Seto et al. (2012), which proceeds not by self-organized oriented attachment of crystalline nano-bricks but by aggregation of initially amorphous nanogranules which later transform by epitaxial nucleation to a three-dimensional array of well aligned nanocrystals. We further fathom the role of a liquid amorphous calcium carbonate in biomineralisation processes and provide strong evidence for the occurrence of PILP-like intermediates during prism formation. We develop a new scenario of prism formation based on the presented findings presented findings and discuss the implications of a speculative liquid amorphous calcium carbonate (LACC) intermediate in vivo. PY - 2012 U6 - https://doi.org/10.1039/c2fd20045g SN - 1359-6640 SN - 1364-5498 VL - 159 IS - 0 SP - 433 EP - 448 PB - Soc. CY - Cambridge [u.a.] AN - OPUS4-27122 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Weber, Gert A1 - Göklü, S. A1 - Pepke, Lutz-Alexander A1 - Rethmeier, Michael T1 - Einfluss von Schweißeinrichtungskomponenten auf die Prozesssicherheit beim Widerstandspunktschweißen hoch fester Stähle für den Rohkarosserie-Leichtbau T2 - join ex 2012 CY - Vienna, Austria DA - 2012-11-10 PY - 2012 AN - OPUS4-27123 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Weber, Gert A1 - Rethmeier, Michael T1 - Influence of Electrode Caps on the Process Reliability of Resistance Spot Welding in the Automobile Manufacturing T2 - MSE 2012 CY - Darmstadt, Germany DA - 2012-09-25 PY - 2012 AN - OPUS4-27124 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Weber, Gert A1 - Thommes, H. A1 - Bschorr, T. A1 - Cramer, H. A1 - Hahn, O. A1 - Rethmeier, Michael T1 - Weldbonding of High Strength Steels in Automotive Body-in-White Applications T2 - EURADH 2012 CY - Friedrichshafen, Germany DA - 2012-09-16 PY - 2012 AN - OPUS4-27125 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Brandenburg, E. A1 - von Berlepsch, H. A1 - Leiterer, Jork A1 - Emmerling, Franziska A1 - Koksch, B. T1 - Formation of alpha-helical nanofibers by mixing beta-structured and alpha-helical coiled coil peptides N2 - The helical coiled coil is a well-studied folding motif that can be used for the design of nanometer-sized bioinspired fibrous structures with potential applications as functional materials. A two-component system of coiled coil based model peptides is investigated, which forms, under acidic conditions, uniform, hundreds of nanometers long, and ~2.6 nm thick trimeric α-helical fibers. In the absence of the other component and under the same solvent conditions, one model peptide forms β-sheet-rich amyloid fibrils and the other forms stable trimeric α-helical coiled coils, respectively. These observations reveal that the complementary interactions driving helical folding are much stronger here than those promoting the intermolecular β-sheet formation. The results of this study are important in the context of amyloid inhibition but also open up new avenues for the design of novel fibrous peptidic materials. PY - 2012 U6 - https://doi.org/10.1021/bm300882d SN - 1525-7797 VL - 13 IS - 11 SP - 3542 EP - 3551 PB - ACS Publ. CY - Washington, DC, USA AN - OPUS4-27126 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Merkel, Stefan A1 - Köppen, Robert A1 - Koch, Matthias A1 - Nehls, Irene T1 - Photochemische Transformationsprodukte von Ergotalkaloiden T2 - 41. Deutscher Lebensmittelchemikertag CY - Münster, Germany DA - 2012-09-10 PY - 2012 AN - OPUS4-27127 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Auersch, Lutz A1 - Rücker, Werner A1 - Said, Samir T1 - Mitigation measure for the wave propagation at a Swiss site T2 - RIVAS WP 4 Meeting CY - Munich, Germany DA - 2012-08-27 PY - 2012 AN - OPUS4-27128 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Turky, Gamal A1 - Wolff, Dietmar A1 - Schönhals, Andreas T1 - Confinement effects on the molecular dynamics of liquid-crystalline polymethacrylates - a broadband dielectric spectroscopy study N2 - The molecular dynamics of liquid-crystalline polymethacrylates with biphenyl in the side group forming a highly ordered smectic E phase at low temperatures is investigated by dielectric spectroscopy (DS). Although no glass transition is found by DSC, DS detects a relaxation in the smectic E phase resembling to glassy dynamics. The temperature dependence of its relaxation rate is Arrhenius like at low temperatures, which changes to a VFT law at higher temperatures. Such a behavior is found to be characteristic for glassy dynamics in confining space. It is discussed, considering the structure of the polymers as nanobiphasic consisting of liquid-crystalline layers while the backbones fill the interlayer space. A comparison is made to polymethacrylates having phenyl benzoate as mesogen. KW - Dielectric properties KW - Dynamics in confining space KW - Liquid-crystalline polymers KW - Molecular dynamics PY - 2012 U6 - https://doi.org/10.1002/macp.201200361 SN - 1022-1352 SN - 1521-3935 VL - 213 IS - 22 SP - 2420 EP - 2431 PB - Wiley-VCH Verl. CY - Weinheim AN - OPUS4-27129 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Eisenkolb, Tino A1 - Mehdianpour, Milad T1 - Experimental Investigations on Sliding Friction of Historic Bridge Bearings T2 - 8th International Conference SAHC 2012 (Structural Analysis of Historical Constructions) CY - Wroclaw, Poland DA - 2012-10-15 PY - 2012 AN - OPUS4-27130 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Scheid, Marc A1 - Schröder, Volkmar A1 - Kusche, Christian T1 - Untersuchungen zur Eignung der Zündquelle "explodierender Draht" als alternative Zündquelle zur Bestimmung von StK in der 20-L-Kugel T2 - ProcessNet Arbeitsausschus "Sicherheitstechnische Kenngrößen CY - Frankfurt am Main, Germany DA - 2012-10-17 PY - 2012 AN - OPUS4-27051 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Scheid, Marc T1 - Neue Richtlinien aus der Reihe VDI-2263 "Staubbrände und Staubexplosionen; Gefahren - Beurteilung - Schutzmaßnahmen" T2 - 7. Tag des Explosionsschutzes (Veranstaltung der TÜV SÜD Akademie) CY - Munich, Germany DA - 2012-10-11 PY - 2012 AN - OPUS4-27052 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Winkel, A. A1 - Meszaros, R. A1 - Reinsch, Stefan A1 - Müller, Ralf A1 - Travitzky, N. A1 - Fey, T. A1 - Greil, P. A1 - Wondraczek, L. T1 - Sintering of 3D-printed glass/HAp composites N2 - We report the sintering of 3D-printed composites of 13-93 bioactive glass and hydroxyapatite (HAp) powders. The sintering process is characterized on conventionally produced powder compacts with varying HAp content. A numeric approximation of the densification kinetics is then obtained on the basis of Frenkel, Mackenzie–Shuttleworth, and Einstein–Roscoe models, and optimized sintering conditions for 3D-printed structures are derived. Fully isotropic sintering of complex cellular composites is obtained by continuous heating to 750°C at a rate of 2 K/min for a HAp content of 40 wt%. The approach can readily be generalized for printing and sintering of similar glass-ceramic composites. KW - Sintering glass composit bio material PY - 2012 U6 - https://doi.org/10.1111/j.1551-2916.2012.05368.x SN - 0002-7820 SN - 1551-2916 VL - 95 IS - 11 SP - 3387 EP - 3393 PB - Blackwell Publishing CY - Malden AN - OPUS4-27053 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CHAP A1 - Müller, Ralf A1 - Reinsch, Stefan ED - Bansal, N. P. ED - Boccaccini, A.R. T1 - Viscous-phase silicate processing KW - Viskoses Sintern KW - Oberflächenkeimbildung KW - Glaspulver KW - Sintermodelle KW - Sinterglaskeramik KW - Glasmatrixkomposit PY - 2012 SN - 978-0-470-55344-2 IS - Chapter 3 SP - 75 EP - 144 PB - Wiley AN - OPUS4-27054 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - GEN A1 - Rogge, Andreas A1 - Rücker, Werner A1 - Baeßler, Matthias T1 - Tragverhalten und Zustandsbewertung von Offshore-Windenergieanlagen unter hochzyklischer Beanspruchung KW - Gründung KW - Langzeitverhalten KW - Ermüdung KW - Schädigung KW - Monitoring PY - 2012 SN - 1431-5122 N1 - Serientitel: Berichte aus dem konstruktiven Ingenieurbau – Series title: Berichte aus dem konstruktiven Ingenieurbau VL - 12/4 SP - 227 EP - 234 AN - OPUS4-27055 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Zeps, Robert A1 - Ferrero, Fabio A1 - Kluge, Martin A1 - Schröder, Volkmar A1 - Spoormaker, T. T1 - Experimental investigation on the self-heating and decomposition of tetrafluoroethylene in a 100-dm³-reactor N2 - In the industry there is a lack of data on the Minimum Ignition Temperature of decomposition of tetrafluoroethylene in industrial sized equipment. In order to determine the Minimum Ignition Temperature of Decomposition of tetrafluoroethylene in large scale vessels, a facility was designed and constructed. Tests were carried out in a cylindrical reactor with a volume of 100 dm³ with initial pressures of 5 and 10 bar(a). In agreement with previous experiments with small scale cylindrical vessels, the Minimum Ignition Temperature of Decomposition of tetrafluoroethylene was observed to decrease with the initial pressure. The current paper describes the test setup and summarizes the experimental results achieved. The effect of the reactor adjustment (vertical or horizontal) is discussed. Moreover, simplified equations from the Semenov thermal explosion theory are used to attempt extrapolations of previous and current data on the Minimum Ignition Temperature of Decomposition of tetrafluoroethylene to other initial pressures and vessel volumes. T2 - Hazards XXIII Symposium CY - Southport, UK DA - 2012-11-12 KW - Tetrafluoroethylene KW - Self-heating KW - Large-scale reactor PY - 2012 SN - 978-0-85295-557-4 N1 - Serientitel: Symposium Series – Series title: Symposium Series N1 - Geburtsname von Kluge, Martin: Beckmann-Kluge, M. - Birth name of Kluge, Martin: Beckmann-Kluge, M. VL - 158 IS - Paper 08 SP - 48 EP - 55 AN - OPUS4-27056 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Menrad, Andreas A1 - Goedecke, Thomas T1 - Beurteilung des Versagensverhaltens von Gefahrgutverpackungen aus HDPE anhand geeigneter Werkstoffkennwerte T2 - Sitzung Technischer Ausschuss Hohlkörper der IK CY - Bad Homburg, Germany DA - 2012-11-06 PY - 2012 AN - OPUS4-27057 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Menrad, Andreas A1 - Goedecke, Thomas T1 - Innendruckprüfung von extrusionsgeblasenen Kunststoff-Hohlkörpern - Experiment und Simulation der Verformung nach der Einwirkung von Chemikalien T2 - 13. Gefahrgut-Technik-Tage CY - Berlin, Germany DA - 2012-11-12 PY - 2012 AN - OPUS4-27059 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Wiggenhauser, Herbert A1 - Niederleithinger, Ernst A1 - Krause, Martin A1 - Mielentz, Frank A1 - Schulze, Sebastian A1 - Shokouhi, Parisa A1 - Taffe, Alexander T1 - Innovative Ultrasonic Techniques for Inspection and Monitoring of Large Concrete Structures T2 - NUCPERF 2012 CY - Cadarache, France DA - 2012-11-12 PY - 2012 AN - OPUS4-27060 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Resch-Genger, Ute A1 - Bremser, Wolfram A1 - Pfeifer, Dietmar A1 - Spieles, Monika A1 - Hoffmann, Angelika A1 - DeRose, P.C. A1 - Zwinkels, J. C. A1 - Gauthier, F. A1 - Ebert, B. A1 - Taubert, R.D. A1 - Voigt, J. A1 - Hollandt, J. A1 - Macdonald, R. T1 - State-of-the art comparability of corrected emission spectra. 2. Field laboratory assessment of calibration performance using spectral fluorescence standards N2 - In the second part of this two-part series on the state-of-the-art comparability of corrected emission spectra, we have extended this assessment to the broader community of fluorescence spectroscopists by involving 12 field laboratories that were randomly selected on the basis of their fluorescence measuring equipment. These laboratories performed a reference material (RM)-based fluorometer calibration with commercially available spectral fluorescence standards following a standard operating procedure that involved routine measurement conditions and the data evaluation software LINKCORR developed and provided by the Federal Institute for Materials Research and Testing (BAM). This instrument-specific emission correction curve was subsequently used for the determination of the corrected emission spectra of three test dyes, X, QS, and Y, revealing an average accuracy of 6.8% for the corrected emission spectra. This compares well with the relative standard uncertainties of 4.2% for physical standard-based spectral corrections demonstrated in the first part of this study (previous paper in this issue) involving an international group of four expert laboratories. The excellent comparability of the measurements of the field laboratories also demonstrates the effectiveness of RM-based correction procedures. KW - Fluorescence KW - Photoluminescence KW - Dye KW - Uncertainty KW - Method comparison KW - Standard KW - Method comparison KW - Spectral correction KW - Spectral fluorescence standard PY - 2012 U6 - https://doi.org/10.1021/ac203451g SN - 0003-2700 SN - 1520-6882 VL - 84 IS - 9 SP - 3899 EP - 3907 PB - American Chemical Society CY - Washington, DC AN - OPUS4-27081 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Otremba, Frank A1 - Sklorz, Christian A1 - Balke, Christian T1 - Performance of dangerous goods tanks in a fire T2 - ASME Intrnational Mechanical Congress and Exposition CY - Houston, TX, USA DA - 2012-11-09 PY - 2012 AN - OPUS4-27082 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Reich, Franziska A1 - Pötzsch, Klaus-Michael A1 - Balke, Christian T1 - Untersuchung Transportrahmen für GH2-Batteriefahrzeuge T2 - 21. Sitzung BAM/DIN/IGV CY - Berlin, Germany DA - 2012-11-09 PY - 2012 AN - OPUS4-27083 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Reich, Franziska A1 - Balke, Christian T1 - Abblasvorrichtung an Tankcontainern und IBC T2 - 13. Gefahrgut-Technik-Tage, BAM CY - Berlin, Germany DA - 2012-11-12 PY - 2012 AN - OPUS4-27084 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Zur, Malte A1 - Otremba, Frank A1 - Leder, A. T1 - Numerical Simulation and Experimental Study of Cabin Airflow in Aircraft Cargo Compartments T2 - ASME 2012 International Mechanical Engineering Congress CY - Houston, TX, USA DA - 2012-11-12 PY - 2012 AN - OPUS4-27085 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Krüger, Simone A1 - Deubel, Jan A1 - Fettig, Ina A1 - Raspe, Tina A1 - Piechotta, Christian T1 - Experimentelle Realisierung von Brandszenarien und deren brandtechnologische Analyse T2 - Brandursachenseminar der Landespolizei Mecklenburg-Vorpommern CY - Güstrow, Germany DA - 2012-11-12 PY - 2012 AN - OPUS4-27087 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Habel, Wolfgang T1 - Sensor-Integration in Real Structures (invited lecture) T2 - COST TD1001 - School CY - Funchal, Portugal DA - 2012-09-04 PY - 2012 AN - OPUS4-27088 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Habel, Wolfgang T1 - R&D Activities in Structural Health Monitoring by using Fibre-optic Sensors (invited lecture) T2 - Forschungskooperation im Rahmen der COST TD1001 - Action CY - Istanbul, Turkey DA - 2012-10-04 PY - 2012 AN - OPUS4-27089 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Rücker, Werner T1 - Bauwerksüberwachung, Bewertungsverfahren, Normen und Richtlinien T2 - VDI-Wissensforum CY - Kassel, Germany DA - 2012-04-27 PY - 2012 AN - OPUS4-27090 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Rücker, Werner T1 - Behaviour and capacity of pile foindations for offshore wind energy converters - part II T2 - Internationale RAVE Konferenz CY - Bremerhaven, Germany DA - 2012-05-08 PY - 2012 AN - OPUS4-27101 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Rücker, Werner A1 - Karabeliov, Krassimire A1 - Cuéllar, Pablo A1 - Baeßler, Matthias A1 - Georgi, Steven T1 - Ermittlung der Tragfähigkeit von Offshore Rammpfählen unter zyklischer Belastung - Modellversuche, Großversuche, numerische Verfahren T2 - Hans-Lorenz Symposium 2012 CY - Berlin, Germany DA - 2012-10-11 PY - 2012 AN - OPUS4-27102 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Auersch, Lutz T1 - Metodos exactos para predecir las vibraciones de los trenes, vias, suelos y edificios T2 - Seminario de la Escuela Tecnica Superior de Ingenieria CY - Seville, Spain DA - 31.10.2012 PY - 2012 AN - OPUS4-27103 LA - spa AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Auersch, Lutz T1 - La emision de las vibraciones por los trenes T2 - Seminario de la Escuela Tecnica Superior de Ingenieria CY - Seville, Spain DA - 31.10.2012 PY - 2012 AN - OPUS4-27104 LA - spa AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Auersch, Lutz T1 - La transmision de las vibraciones a traves del suelo T2 - Seminario de la Escuela Tecnica Superior de Ingenieria CY - Seville, Spain DA - 31.10.2012 PY - 2012 AN - OPUS4-27105 LA - spa AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Auersch, Lutz T1 - La inmision de las vibraciones en los edificios T2 - Seminario de la Escuela Tecnica Superior de Ingenieria CY - Seville, Spain DA - 31.10.2012 PY - 2012 AN - OPUS4-27106 LA - spa AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Rücker, Werner A1 - Auersch, Lutz T1 - Numerical results for the sleepers, sleeper pads and the substructure T2 - RIVAS Workshop CY - Paris, France DA - 2012-01-09 PY - 2012 AN - OPUS4-27107 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Auersch, Lutz T1 - Train induced vibration of inhomogeneous soils - a prediction based on measured and calculated point-load solutions T2 - 19th Int. Congress on Sound and Vibration ICSV CY - Vilnius, Lithuania DA - 2012-07-08 PY - 2012 AN - OPUS4-27108 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Gorbushina, Anna T1 - Materials conservation for a sustainable development T2 - Workshop + Lehrveranstaltung: "Science and Past: Materials conservation for a sustainable development" CY - Zaragoza, Spain DA - 2012-11-13 PY - 2012 AN - OPUS4-27109 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Meng, Birgit A1 - Fontana, Patrick A1 - Maier, Bärbel T1 - Vermeidung stofflicher Probleme bei der Wärmebehandlung von Beton T2 - BMO-Fachtagung "Beton für alle Wetter", BAM CY - Berlin, Germany DA - 2012-11-22 PY - 2012 AN - OPUS4-27110 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Habel, Wolfgang T1 - Selected R&D Projects in Structural Health Monitoring on the Basis of Optical Fibres (invited lecture) T2 - Forschungskooperation im Rahmen der COST TD1001 - Action CY - Istanbul, Turkey DA - 2012-10-04 PY - 2012 AN - OPUS4-27091 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Habel, Wolfgang T1 - Application of Fibre-Optic Sensors for Health Monitoring Purposes in Geo-Engineering (invited lecture) T2 - International Symposium on Optics in Geo-Engineering OSMG-4 2012 CY - Suzhou, China DA - 2012-10-11 PY - 2012 AN - OPUS4-27092 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Rücker, Werner A1 - Auersch, Lutz T1 - Insertion loss under sleeper pads in ballast and slab track systems T2 - RIVAS Workshop CY - Leuven, Belgium DA - 2012-05-22 PY - 2012 AN - OPUS4-27093 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Habel, Wolfgang T1 - Fibre-Optic Strain Sensors are Making the Leap from Lab to Industrial Use-Reliability and Validation as Precondition for Standards (invited lecture) T2 - International Conference on Optical Fibre Sensors OFS-22 2012 CY - Beijing, China DA - 2012-10-15 PY - 2012 AN - OPUS4-27094 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Habel, Wolfgang T1 - Fibre-Optic Sensor Activities of BAM in Research and Development (invited lecture) T2 - Key-Lab for Fibre Optics CY - Shanghai, China DA - 2012-10-08 PY - 2012 AN - OPUS4-27095 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Rücker, Werner A1 - Said, Samir A1 - Auersch, Lutz T1 - Soil Properties at the Rubigen Test Site for a trench T2 - RIVAS Workshop CY - Berlin, Germany DA - 2012-11-12 PY - 2012 AN - OPUS4-27096 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Rücker, Werner T1 - Normen und Richtlinien für Windenergieanlagen T2 - Workshop Baunormung für Windenergieanlagen CY - Berlin, Germany DA - 2012-09-21 PY - 2012 AN - OPUS4-27097 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Rücker, Werner T1 - Bauwerksüberwachung, Konzepte und Aufgaben T2 - VDI-Wissensforum CY - Kassel, Germany DA - 2012-04-27 PY - 2012 AN - OPUS4-27098 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Rücker, Werner A1 - Said, Samir A1 - Schmid, Wolfgang A1 - Rohrmann, Rolf T1 - Zustandsanalyse und Langzeitüberwachung des Brandenburger Tores in Berlin T2 - Messen im Bauwesen CY - Berlin, Germany DA - 2012-03-06 PY - 2012 AN - OPUS4-27099 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Rücker, Werner T1 - Dynamisches Verhalten von Turm und Gründungsstruktur T2 - Offshore Tage Warnemünde CY - Rostock, Germany DA - 2012-03-21 PY - 2012 AN - OPUS4-27100 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Weltschev, Margit T1 - Beständigkeit von Polyethylenformstoffen und Dichtungswerkstoffen gegenüber Biokraftstoffen T2 - BAM 13. Gefahrgut-Technik-Tage Verpackungen + IBC, BAM CY - Berlin, Germany DA - 2012-11-12 PY - 2012 AN - OPUS4-27211 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Bertin, Annabelle T1 - Emergence of polymer stereocomplexes for biomedical applications N2 - Polylactide (PLA) and poly(methyl methacrylate) (PMMA) constitute, already for several decades, the gold standards for various biomedical applications due to their biocompatibility/inertness. Moreover, they have an additional property: they can form stereocomplexes (SCs) that have a more compact crystalline structure than the individual components. As a result, polymer SCs display improved thermal and mechanical properties, as well as delayed drug release and biodegradation rate in the case of drug delivery systems and biomaterials based on PLA, which is of prime importance in the biomedical field. In this article, the potential of SCs for biomedical applications in the areas of drug delivery, tissue engineering, and nanostructured surfaces is highlighted. KW - Biomedical applications of polymers KW - Polylactide KW - Poly(methyl methacrylate) KW - Self-assembly KW - Stereocomplexation PY - 2012 U6 - https://doi.org/10.1002/macp.201200143 SN - 1022-1352 SN - 1521-3935 VL - 213 IS - 22 SP - 2329 EP - 2352 PB - Wiley-VCH Verl. CY - Weinheim AN - OPUS4-27212 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Robertson, Daniela T1 - Evaluierung des Autoklaventests nach DIN EN ISO 13438 zur Untersuchung der Oxidationsbeständigkeit von Geokunststoffen auf Polyolefinbasis T2 - VSVI Seminar CY - Münster, Germany DA - 2012-02-28 PY - 2012 AN - OPUS4-27213 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Adam, Christian A1 - Vogel, C. A1 - Kappen, P. A1 - Schiller, T. A1 - Lipiec, A1 - McNaughton, D. T1 - Determination of Chemical State of Chromium in Sewage Sludge Ash based Fertilisers T2 - Synchrotron User Meeting 2012 CY - Clayton, Australia DA - 2012-11-29 PY - 2012 AN - OPUS4-27214 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Adam, Christian A1 - Vogel, C. A1 - Kappen, P. A1 - Schiller, T. A1 - Lipiec, A1 - McNaughton, D. T1 - Determination of P-Fertiliser-Soil Reactions by Raman and Synchrotron Infrared Microspectroscopy T2 - Synchrotron User Meeting 2012 CY - Clayton, Australia DA - 2012-11-29 PY - 2012 AN - OPUS4-27215 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Thünemann, Andreas T1 - Standardization of Small-Angle Scattering: Current Status and Future Developments T2 - 15th International Small-Angle Scattering Conference 2012 CY - Sydney, Australia DA - 2012-11-18 PY - 2012 AN - OPUS4-27216 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Auersch, Lutz T1 - Train induced vibration of inhomogeneous soils - a prediction based on measured and calculated point-load solutions N2 - Vehicle, track and ground vibration as well as their interaction are considered in a combined finite-element boundary-element (FEBEM) approach. The layered soil is calculated in frequency wavenumber domain and the solution for fixed or moving point or track loads follow as wavenumber integrals. The soil results from the measurements and the detailed models are approximated by simple formula which are used for the prediction of train-induced ground vibration. The influence of the track and the soil on the train induced ground vibration is analysed by the detailed models. The ground vibrations strongly depend on the regular and random inhomogeneity of the soil. The regular layering of the soil yields a cut-on and resonance phenomenon while the random inhomogeneity yields a scattering of the axle impulses which proved to be important for high-speed trains. The attenuation with distance of the ground vibration due to the point-like excitations such as vibrator or hammer excitations and the train-track excitation are investigated and compared. All theoretical results are compared with measurements at conventional and high-speed railway lines. T2 - ICSV19 - 19th International congress on sound and vibration CY - Vilnius, Lithuania DA - 08.07.2012 PY - 2012 SN - 978-609-459-079-5 SP - 1 EP - 8 AN - OPUS4-27218 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - GEN A1 - Bretz, Simone A1 - Hahn, Oliver ED - Haindl, G. ED - Trepesch, C. T1 - Kunsttechnologische Studien über Johann Wolfgang Baumgartner, 'des Glasmahlens fürtrefflich wohl erfahren' mit einem Exkurs von Oliver Hahn zu Materialanalysen an ausgewählten Hinterglasbildern N2 - In der kunstreichen Stadt Augsburg wurde das Hinterglasgewerbe Ende des 17. Jahrhunderts eingefiihrt, setzte sich mit dem Hinterglasmaler Johann Wolfgang Baumgartner (1702 Ebbs, b. Kufstein -1761 Augsburg) in den Jahren 1733 bis 1746 fort, erfuhr ab der Mitte des 18. Jahrhunderts, besonders zwischen 17S0 und 1800, eine wahre Blüte, um Anfang des 19. Jahrhunderts langsam zu erlöschen. Augsburgs Hinterglasproduktion setzte im Vergleich zu benachbarten Städten spät ein, machte sich aber durch den umfänglichen Fernhandel einen großen Namen und die Stadt wurde zum führenden Zentrum des Handwerks. Mit seiner überzeugenden Umsetzung der grafischen Vorlagen in hintermalte Bildwerke hat Baumgartner einen entscheidenden Impuls zur Ansiedlung der Hinterglasmalerei gegeben. KW - Hinterglasmalerei KW - Zerstörungsfreie Prüfung PY - 2012 SN - 978-3-422-07137-7 SP - 60 EP - 73 PB - Deutscher Kunstverlag AN - OPUS4-27206 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Weihnacht, V. A1 - Brückner, A. A1 - Theiler, Geraldine A1 - Gradt, Thomas T1 - MoS2/ta-C-Kombinationsschichten hergestellt durch Laser-Arc-Technologie - Hochwertige Gleitschichten für extreme Umgebungen N2 - Mittels lasergesteuerter gepulster Vakuumbogentechnologie (Laser-Arc) wurde eine reihe von reinen MoS2-Schichten sowie Kombinationsschichten aus MoS2 und tetraedrischem amorphen Kohlenstoff (ta-C) hergestellt. Mit diesen Schichtvarianten erfolgten tribologische Tests im Vakuum sowie in Atmosphäre. Dabei wurden im Hochvakuum reibungskoeffizienten bis zu 0,005 gemessen. Durch die Verwendung einer ta-C unterschicht konnte eine Lebensdauer von über 5×105 Lastzyklen erreicht werden. Zudem erwies sich diese unterschicht als vorteilhaft für das tribologische Verhalten der MoS2/ta-C Schichten unter atmosphärischen Bedingungen. ------------------------------------------------------------------------------------------------------------------------------------------- A series of MoS2 and combined MoS2/ta-C coatings were prepared by lasercontrolled arc evaporation (Laser-Arc) in order to study the tribological coating behaviour under vacuum and atmospheric conditions. Very low friction coefficients down to 0.005 were measured under high vacuum. By using a ta-C underlayer beneath the MoS2 a increased lifetime up to 5×105 load cycles could be obtained. Also under atmospheric conditions the underlayer had a beneficial effect on coating performance. KW - MoS2 KW - ta-C Schichten KW - Reibung KW - Verschleiß KW - Vakuum Umgebungen PY - 2012 U6 - https://doi.org/10.1002/vipr.201200500 SN - 0947-076X SN - 1522-2454 VL - 24 IS - 5 SP - 17 EP - 23 PB - Wiley-VCH Verl. CY - Weinheim AN - OPUS4-27207 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Schultz, C. A1 - Schüle, M. A1 - Stelmaszczyk, K. A1 - Bonse, Jörn A1 - Witteck, R. A1 - Weizman, M. A1 - Rhein, H. A1 - Rau, B. A1 - Schlatmann, R. A1 - Quaschning, V. A1 - Stegemann, B. A1 - Fink, F. T1 - Film side laser patterning of molybdenum thin films sputter-deposited onto glass N2 - Serial interconnection of CIGSe thin film solar modules involves typically glass-side laser patterning of the molybdenum layer (P1 scribe). In this paper we present a working principle of P1 film side patterning. The investigated samples were sputter-deposited onto soda-lime glass substrates. For understanding the fundamental ablation behavior, two kinds of layer systems were studied: on the one hand monolayer systems which are compressively stressed and on the other hand bilayer systems, consisting of a tensile stressed layer on the substrate and a second layer on top. The film-side ablation process was studied using a nanosecond as well as a picosecond laser source. The influence of intrinsic stress was studied by XRD. Time resolved spectroscopy reveals the formation of plasma as important driving mechanism for ablation. It is shown that by proper adaption of the sputter conditions high-quality P1 film side patterning is achieved. T2 - 27th European photovoltaic solar energy conference and exhibition CY - Frankfurt, Germany DA - 24.09.2012 KW - Laser processing KW - Molybdenum KW - Strain KW - Ablation KW - Sputter deposition KW - Cu(InGa)Se2 PY - 2012 SN - 3-936338-28-0 U6 - https://doi.org/10.4229/27thEUPVSEC2012-3CV.1.6 SP - 2266 EP - 2272 AN - OPUS4-27208 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Rethmeier, Michael A1 - Gumenyuk, Andrey A1 - Quiroz Penaranda, Vanessa T1 - Investigation on laser beam welding of high-manganese austenitic and austenitic-ferritic stainless steels PY - 2012 SN - 0005-111x SN - 0005-2302 VL - 1 IS - 705 SP - 12 EP - 17 CY - Kiev, Ukraine AN - OPUS4-27209 LA - rus AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Schartel, Bernhard A1 - Beck, Uwe A1 - Bahr, Horst A1 - Hertwig, Andreas A1 - Knoll, Uta A1 - Weise, Matthias T1 - Sub-micrometre coatings as an infrared mirror: a new route to flame retardancy N2 - Most of the polymeric materials used are easy to ignite and show extensive flame spread along their surfaces. Apart from extensive heat release rates, their short time to ignition (tig), in particular, is a key fire hazard. Preventing ignition eliminates fire hazards completely. Protection layers that shift tig by more than an order of magnitude are powerful flame retardancy approaches presenting an alternative to the usual flame retardancy concepts. Coatings are proposed that consist of a three-layer system to ensure adhesion to the substrate, acting as an infrared (IR) mirror and protecting against oxidation. The IR-mirror layer stack is realised by physical vapour deposition in the sub-micrometre (<1 µm) range, reducing heat absorption by up to an order of magnitude. Not only is the ease of ignition diminished (tig is increased by several minutes), the flame spread and fire growth indices are also remarkably reduced to as little as 1/10 of the values of the uncoated polymers open for further optimization. Sub-micrometre thin IR-mirror coatings yielding surface absorptivity <0.1 are proposed as a novel and innovative flame retardancy approach. KW - Coating KW - Fire protection KW - Physical vapour deposition (PVD) KW - IR mirror KW - Ignition PY - 2012 U6 - https://doi.org/10.1002/fam.1122 SN - 0308-0501 SN - 1099-1018 VL - 36 IS - 8 SP - 671 EP - 677 PB - Heyden CY - London AN - OPUS4-27210 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Scheid, Marc A1 - Snoeys, J. A1 - Bunse, R. T1 - Neues aus den Normenausschüssen zum Staubexplosionsschutz T2 - VDI-Fachtagung - Sichere Handhabung brennbarer Stäube CY - Nürnberg, Germany DA - 2012-11-06 KW - ATEX KW - Normung Staubexplosionsschutz KW - Sicherheitstechnische Kenngrößen KW - Konstruktiver Explosionsschutz PY - 2012 SN - 978-3-18-092182-2 SN - 0083-5560 N1 - Serientitel: VDI-Berichte – Series title: VDI-Berichte VL - 2182 SP - 17 EP - 29 PB - VDI-Verl. CY - Düsseldorf AN - OPUS4-27131 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Pelkner, Matthias A1 - Neubauer, Andreas A1 - Reimund, Verena A1 - Kreutzbruck, Marc T1 - Routes for GMR-sensor design in non-destructive testing N2 - GMR sensors are widely used in many industrial segments such as information technology, automotive, automation and production, and safety applications. Each area requires an adaption of the sensor arrangement in terms of size adaption and alignment with respect to the field source involved. This paper deals with an analysis of geometric sensor parameters and the arrangement of GMR sensors providing a design roadmap for non-destructive testing (NDT) applications. For this purpose we use an analytical model simulating the magnetic flux leakage (MFL) distribution of surface breaking defects and investigate the flux leakage signal as a function of various sensor parameters. Our calculations show both the influence of sensor length and height and that when detecting the magnetic flux leakage of µm sized defects a gradiometer base line of 250 µm leads to a signal strength loss of less than 10% in comparison with a magnetometer response. To validate the simulation results we finally performed measurements with a GMR magnetometer sensor on a test plate with artificial µm-range cracks. The differences between simulation and measurement are below 6%. We report on the routes for a GMR gradiometer design as a basis for the fabrication of NDT-adapted sensor arrays. The results are also helpful for the use of GMR in other application when it comes to measure positions, lengths, angles or electrical currents. KW - Giant magneto resistance KW - Non-destructive testing KW - Magnetic flux leakage KW - Sensor array PY - 2012 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:b43-271325 SN - 1424-8220 VL - 12 IS - 9 SP - 12169 EP - 12183 PB - MDPI CY - Basel AN - OPUS4-27132 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Poli, Marco A1 - Grätz, Rainer A1 - Schröder, Volkmar T1 - Hazards of accelerated gas explosion venting and their safety-relevant parameters T2 - Hazards XXIII CY - Southport, England DA - 2012-11-13 PY - 2012 AN - OPUS4-27133 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Grunewald, Thomas T1 - Explosionsgefahr durch nichtelektrische Zündquellen verringern - Brandgefahr reduzieren T2 - 13. Essener Brandschutztage CY - Essen, Germany DA - 2012-11-21 PY - 2012 AN - OPUS4-27134 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Weltschev, Margit T1 - Beständigkeit von Polyethylenformstoffen und Dichtungswerkstoffen gegenüber Biokraftstoffen T2 - 13. Gefahrgut-Technik-Tage Verpackungen + IBC CY - Berlin, Germany DA - 2012-11-12 KW - Biokraftstoffe KW - Beständigkeit KW - Polyethylen KW - Verpackungen KW - Dichtungswerkstoffe PY - 2012 UR - http://www.storck-verlag.de/gtt/2012/09_weltschev.pdf SP - 1 EP - 48 PB - Storck AN - OPUS4-27135 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - GEN A1 - Ciscato, W. A1 - Binder, Christian A1 - Hesse, Olaf A1 - Lehné, Siegfried A1 - Kasch, Thomas ED - Davis, S.E. ED - Steinberg, T.A. T1 - Another dangerous practice in the SCUBA diving community N2 - The widely held incorrect belief in the self-contained underwater breathing apparatus (SCUBA) diving community, that oxygen-enriched gas mixtures, so-called NITROX, with an oxygen content of up to 40 vol. % can be considered as regular air, has already been refuted in many papers. Now, another dangerous practice has drawn the attention. In a market study, more than 60 representative SCUBA cylinder valves were examined. Sales offices claim that all of those valves can be used for oxygen-enriched gas mixtures. The fact is that some of these cylinder valves are for air use only. By exchanging the nonmetallic materials and applying additional cleaning procedures, these air valves become so-called “oxygen clean.” Then, the valves are on sale for oxygen-enriched service. This procedure is dangerous because the labeling pretends a pseudo-safety. All of the 60 SCUBA cylinder valves were tested applying the standardized oxygen pressure surge tester at BAM. As suspected, many of the cylinder valves are not burn-out safe. In addition, different test results were received for actual new valves, for so-called new but temporarily stored valves, and for used valves. This paper reveals another dangerous practice and wants to alert the SCUBA diving community. KW - SCUBA diving KW - Pneumatic impact KW - Burn-out safety KW - Oxygen KW - NITROX KW - Modified air valves KW - Aging of diving valves KW - Oxygen compatibility PY - 2012 SN - 978-0-8031-7547-1 U6 - https://doi.org/10.1520/STP20120007 VL - 13 IS - STP 1561 SP - 162 EP - 171 CY - West Conshohocken, PA, USA AN - OPUS4-27136 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - GEN A1 - Kasch, Thomas A1 - Binder, Christian A1 - Hesse, Olaf A1 - Lehné, Siegfried A1 - Ciscato, W. ED - Davis, S.E. ED - Steinberg, T.A. T1 - Safe for oxygen but not for oxygen-enriched gas mixtures in SCUBA diving PY - 2012 SN - 978-0-8031-7547-1 U6 - https://doi.org/10.1520/STP20120005 VL - 13 IS - STP 1561 SP - 172 EP - 181 CY - West Conshohocken, PA, USA AN - OPUS4-27137 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - GEN A1 - Kasch, Thomas A1 - Binder, Christian A1 - Brock, Thomas A1 - Treisch, Nico A1 - Dielforder, Philip ED - Davis, S.E. ED - Steinberg, T.A. T1 - Fire without cause of an oxygen component with an aluminium seal KW - Aluminium KW - High-pressure oxygen KW - Bursting diaphragm KW - Metallic material KW - Fire risk KW - Ignition source KW - Accident research KW - Safety engineering PY - 2012 SN - 978-0-8031-7547-1 U6 - https://doi.org/10.1520/STP20120004 VL - 13 IS - STP 1561 SP - 105 EP - 116 CY - West Conshohocken, PA, USA AN - OPUS4-27138 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Hodoroaba, Vasile-Dan A1 - Kim, K.J. A1 - Unger, Wolfgang T1 - Energy dispersive electron probe microanalysis (ED-EPMA) of elemental composition and thickness of Fe-Ni alloy films N2 - The elemental composition of thin Fe-Ni alloy films deposited on silicon substrates were determined by electron probe microanalysis with an energy dispersive spectrometer using the STRATAGem software. The work was part of ample inter-laboratory comparisons organized in the frame of CCQM/SAWG (Consultative Committee for Amount of Substance/Surface Analysis Working Group). Therefore, the evaluation of the measurement uncertainties is treated in detail. By having the mass coverage and estimating a layer density, the layer thickness could be derived. KW - Thin films KW - Fe-Ni KW - Energy dispersive electron probe microanalysis (ED-EPMA) KW - STRATAGem KW - k-values KW - Mass coverage KW - Elemental composition KW - Thickness KW - CCQM PY - 2012 U6 - https://doi.org/10.1002/sia.4975 SN - 0142-2421 SN - 1096-9918 VL - 44 IS - 11-12 SP - 1459 EP - 1461 PB - Wiley CY - Chichester AN - OPUS4-27139 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Unger, Wolfgang A1 - Senoner, Mathias T1 - Surface chemical analysis - Determination of lateral resolution and sharpness in beam-based methods T2 - Annual Meeting ISO TC 201 "Surface Chemical Analysis" CY - Tampa, FL, USA DA - 2012-10-24 PY - 2012 AN - OPUS4-27140 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Keserovic, Amela A1 - Bäßler, Ralph T1 - Contribution to material qualification for geothermal application T2 - Eurocorr 2012 CY - Istanbul, Turkey DA - 2012-09-09 PY - 2012 AN - OPUS4-27161 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Keserovic, Amela A1 - Bäßler, Ralph T1 - Korrosionsverhalten von metallischen Werkstoffen für den Einsatz in geothermischen Anlagen in Indonesien T2 - GfKORR-Jahrestagung 2012 CY - Frankfurt am Main, Germany DA - 2012-11-06 PY - 2012 AN - OPUS4-27162 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Keserovic, Amela A1 - Bäßler, Ralph T1 - Korrosionsverhalten von metallischen Werkstoffen für den Einsatz in geothermischen Anlagen in Indonesien T2 - DGK-Kongress CY - Karlsruhe, Germany DA - 2012-11-13 PY - 2012 AN - OPUS4-27163 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Höhm, S. A1 - Rosenfeld, A. A1 - Bonse, Jörn A1 - Krüger, Jörg T1 - Formation of laser-induced periodic surface strctures upon irradiation of metals (Ti), semiconductors (Si), and dieelectrics (SiO2) with double femtosecond pulse sequences T2 - 2nd International Workshop on Laser-induced Periodic Surface Structures CY - Cottbus, Germany DA - 2012-10-04 PY - 2012 AN - OPUS4-27164 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Holzweber, Markus A1 - Unger, Wolfgang A1 - Hutter, H. T1 - Sputtering of Liquid Surfaces -Emission of Molecular Secondary Ions from Ionic Liquids N2 - Static secondary ion mass spectrometry (SIMS) has become a major analytical technique for the analysis of solid surfaces. In the last years it has also been used for the analysis of liquid/frozen surfaces from ionic liquids1-5. However, the mechanism for the emission of secondary ions has not been investigated so far, especially for the state of the art liquid metal ion guns (LMIG), such as the Bi or the BiMn LMIGs. These sources are not only able to provide monoatomic primary ions, but also singly and doubly charged polyatomic primary ion cluster. This new development has led to the investigation of the primary ion particle to specific parameters in order to determine the capabilities of such LMIGs on different target samples. To further the principle understanding of secondary ion emission, a systematic study using Bi1-7+ and Bi1,3,5,7++ primary ions on ionic liquids with considerably different strength of inter-ionic interactions was performed. As model samples the ionic liquids 1-butyl-3-methylimidazolium acetate and 1-butyl-3-methylimidazolium hexafluorophosphate ([C4C1im][Ac] and [C4C1im][PF6]) were used. To compare spectra or the performance of primary ion particles on substances or substance classes, the SIMS data were evaluated by calculating secondary ion yields, static SIMS limit, disappearing cross section, ion formation efficiency and fragmentation. T2 - SIMS Europe CY - Münster, Germany DA - 2012-09-09 PY - 2012 AN - OPUS4-27165 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Pfeil, Norbert T1 - Kompetenzerhalt in der Anlagen- und Prozesssicherheit T2 - Jahrestreffen der ProcessNet-Fachgemeinschaft Prozess-, Apparate- und Anlagentechnik CY - Dortmund, Germany DA - 2012-11-19 PY - 2012 AN - OPUS4-27166 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Meyer-Plath, Asmus A1 - Hanelt, Sven A1 - Barthel, Anne-Kathrin T1 - Ansätze zur quantitativen chemischen Charakterisierung von Kohlenstoffnanoröhren T2 - Fachtagung Nano-Additive CY - Berlin, Germany DA - 2012-11-19 PY - 2012 AN - OPUS4-27167 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Meyer-Plath, Asmus A1 - Mach, Reinhard A1 - Petrov, Sergej A1 - Guderian, Matthias A1 - Orts Gil, Guillermo T1 - Plasmaverfahren zur Funktionalisierung und Reinigung von Kohlenstoffnanoröhren T2 - Fachtagung Nano-Additive CY - Berlin, Germany DA - 2012-11-19 PY - 2012 AN - OPUS4-27168 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Habel, Wolfgang T1 - Maßnahmen und Verfahren zur Qualitätssicherung der Sensoren (invited lecture) T2 - Fachseminar Faseroptische Sensoren CY - Weimar, Germany DA - 2012-09-24 PY - 2012 AN - OPUS4-27169 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Habel, Wolfgang T1 - Faseroptische Sensorik für die Bewertung von Materialien und Überwachung von Strukturen T2 - Präsentation bei Nordex Energy GmbH CY - Rostock, Germany DA - 2012-05-31 PY - 2012 AN - OPUS4-27170 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Beck, Uwe A1 - Hertwig, Andreas A1 - Stephanowitz, Ralph A1 - Weise, Matthias A1 - Hönig, D. A1 - Schneider, S. A1 - Domnick, R. A1 - Belzner, M. T1 - Multispektraler Response und Ellipsometrische Codierung von Schichtsystemen für den Dokumenten-, Produkt- und Markenschutz T2 - OPTEC BB, Optische Messtechnik - Mehrdimensionale Spektroskopie CY - Berlin, Germany DA - 2012-11-20 PY - 2012 AN - OPUS4-27151 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Hodoroaba, Vasile-Dan A1 - Benemann, Sigrid A1 - Motzkus, C. A1 - Macé, T. A1 - Palmas, P. A1 - Vaslin-Reimann, S. T1 - Advanced Analysis of spherical SiO2 Aerosol Nanoparticles with a high-resolution SEM T2 - Nano-Additive CY - Berlin, Germany DA - 2012-11-19 PY - 2012 AN - OPUS4-27152 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Bonse, Jörn T1 - Femtosecond laser-induced periodic surface structures T2 - ULTRA Forschungseminar des Instituts für Physik der Universität Kassel CY - Kassel, Germany DA - 2012-11-12 PY - 2012 AN - OPUS4-27153 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Beck, Uwe A1 - Hielscher, Stefan T1 - Validierung der Zentrifugentechnologie zur Qualitätssicherung der Haft- und Verbundfestigkeit von Beschichtungen auf und Verklebungen mit Kunststoffen; eingeladener Vortrag T2 - 20. NDVaK CY - Dresden, Germany DA - 2012-10-25 PY - 2012 AN - OPUS4-27154 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Habel, Wolfgang T1 - Anwendungsgebiete der Faseroptik - ein Feld unbegrenzter Möglichkeiten? (invited lecture) T2 - Fachseminar Faseroptische Sensoren CY - Weimar, Germany DA - 2012-09-24 PY - 2012 AN - OPUS4-27155 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Kleber, F. A1 - Krüger, Jörg A1 - Hollaus, F. A1 - Diem, M. A1 - Sablatnig, R. A1 - Pentzien, Simone A1 - Rabin, Ira A1 - Hahn, Oliver T1 - Can modern technologies defeat Nazi censorship? T2 - The 2nd ACCV Workshop on e-Heritage 2012 CY - Daejeon, South Korea DA - 2012-11-06 PY - 2012 AN - OPUS4-27156 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Dietrich, Paul A1 - Unger, Wolfgang T1 - Surface chemical analysis for the characterization of (bio)interfaces for diagnostic devices T2 - IUVSTA ECM 114 Highlight Seminar CY - Bratislava, Slovakia DA - 2012-10-01 PY - 2012 AN - OPUS4-27157 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Rübner, Katrin A1 - Meinel, Dietmar A1 - Zimathies, Annett A1 - Klobes, Peter A1 - Schnell, A. A1 - Hempel, S. A1 - Prinz, Carsten T1 - Porenstruktur leichter Gesteinskörnungen aus Mauerwerkbruch T2 - XVI. Porotec-Workshop über die Charakterisierung von feinteiligen und porösen Festkörpern CY - Bad Soden, Germany DA - 2012-11-13 PY - 2012 AN - OPUS4-27159 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Rübner, Katrin A1 - Meinel, Dietmar A1 - Prinz, Carsten A1 - Zimathies, Annett A1 - Klobes, Peter A1 - Schnell, A. A1 - Hempel, S. T1 - Porenstruktur leichter Gesteinskörnungen aus Mauerwerkbruch N2 - Leichte Gesteinskörnungen mit Kornrohdichten < 2 g/cm³ werden industriell aus natürlichen Rohstoffen, wie Ton und Schiefer, hergestellt. Dabei fallen hohe Energiekosten an, während außerdem fortwährend die Verfügbarkeit geeigneter Rohstoffe sinkt. Eine Alternative stellen Leichtgranulate, die aus mineralischen Bau- und Abbruchabfällen hergestellt werden, dar. Im Forschungsprojekt „Aufbaukörnungen“ wurde eine Technologie zur Herstellung hochwertiger leichter Gesteinskörnungen aus Mauerwerkbruch entwickelt. Ziegelhaltige Bau- und Abbruchabfälle fallen in Deutschland mit bis zu 26 Mio. t pro Jahr an und weisen größere Verwertungsdefizite als Betonbruch auf. Der neuen Verwertungsstrategie liegt die Idee des rohstofflichen Recyclings zu Grunde. Die leichten Gesteinskörnungen werden am Ende eines mehrstufigen Herstellungsprozesses durch thermische oder hydrothermale Erhärtung im Labor- und halbtechnischen Maßstab produziert. Für Herstellungstechnologie und Eigenschaften der Leichtbetone sind neben Kornfestigkeit und Rohdichte die Porosität und Wasseraufnahme der leichten Gesteinskörnungen entscheidende Größen, die wiederum von Kornform, Oberflächenrauigkeit, Sinterschale und Porenstruktur der Körnungen beeinflusst werden. T2 - XVI. Porotec-Workshop über die Charakterisierung von feinteiligen und porösen Festkörpern CY - Bad Soden, Germany DA - 13.11.2012 PY - 2012 AN - OPUS4-27160 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Buzanich, Günter A1 - Radtke, Martin A1 - Reinholz, Uwe A1 - Hahn, M. T1 - Tissue contamination with implant components after metal-on-metal hip resurfacting arthoplasty T2 - European Conference on X-Ray Spectrometry (EXRS) CY - Vienna, Austria DA - 2012-06-18 PY - 2012 AN - OPUS4-27191 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Batzdorf, Lisa A1 - Panne, Ulrich A1 - Prinz, Carsten A1 - Emmerling, Franziska T1 - Mechanochemical Synthesis of Co and Zn Oxalate Bipyridine Structures and Reorganization at high Temperatures T2 - 3rd International Conference on Metal-Organic Frameworks and Open Framework Compounds CY - Edinburgh, Scotland DA - 2012-09-16 PY - 2012 N1 - Geburtsname von Batzdorf, Lisa: Tröbs, L. - Birth name of Batzdorf, Lisa: Tröbs, L. AN - OPUS4-27192 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Batzdorf, Lisa A1 - Panne, Ulrich A1 - Emmerling, Franziska T1 - Mechanochemical Synthesis of Two 2D Organometallic Structures: [Co(C2o4)(4,4'-bipy)] and [Zn3(C2O4)3(4,4'-bipy)4] T2 - 2. Berliner Chemie Symposium vom JCF Berlin CY - Berlin, Germany DA - 2012-04-03 PY - 2012 N1 - Geburtsname von Batzdorf, Lisa: Tröbs, L. - Birth name of Batzdorf, Lisa: Tröbs, L. AN - OPUS4-27193 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Bethke, John T1 - EU-Projekt "Bestandsaufnahme guter Praktiken bei der CBRN-Transportsicherheit" T2 - 13. Gefahrgut-Technik-Tage Berlin CY - Berlin, Germany DA - 2012-11-12 PY - 2012 AN - OPUS4-27194 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Bethke, John T1 - Verpackungsnormen in Theorie und Praxis T2 - 13. Gefahrgut-Technik-Tage Berlin CY - Berlin, Germany DA - 2012-11-12 PY - 2012 AN - OPUS4-27195 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Hennecke, Manfred T1 - Die Unabhängigkeit der wissenschaftlichen Einrichtungen - eine Einschätzung T2 - Europäische Stakeholderkonferenz "Wie unabhängig kann Wissenschaft sein?!, Bundesinstitut für Risikobewertung CY - Berlin, Germany DA - 2012-11-20 PY - 2012 AN - OPUS4-27196 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Robertson, Daniela T1 - Test methode for the assessment of service life of polymeric geosynthetic barriers (GBR-P) for road tunnels T2 - EuroGeo5 2012 CY - Valencia, Spain DA - 2012-09-16 PY - 2012 AN - OPUS4-27197 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Schneider, Ronald A1 - Fischer, J. A1 - Straub, D. A1 - Thöns, Sebastian A1 - Rücker, Werner T1 - Intelligente Bauwerke - Zuverlässigkeitsbasierte Bewertung von Brückenbauwerken unter Berücksichtigung von Inspektions- und Überwachungsergebnissen T2 - BASt Bundesanstalt für Staßenwesen, Betreuungstreffen "Intelligente Bauwerke" CY - Bergisch Gladbach, Germany DA - 2012-11-28 PY - 2012 AN - OPUS4-27198 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Habel, Wolfgang T1 - Faseroptische Sensorik für die Bewertung von Materialien und Überwachung von Strukturen T2 - Zertifizierungsschulung der DGZfP CY - Berlin, Germany DA - 2012-09-27 PY - 2012 AN - OPUS4-27171 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Habel, Wolfgang T1 - Sensor-Integration in Real Structures (invited lecture) T2 - COST TD1001 - Technical Meeting CY - Funchal, Portugal DA - 2012-09-06 PY - 2012 AN - OPUS4-27172 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Habel, Wolfgang T1 - Progress by standardization - what steps are needed to carry the OFS forward T2 - COST TD1001 - Technical Meeting CY - Funchal, Portugal DA - 2012-09-06 PY - 2012 AN - OPUS4-27173 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Liehr, Sascha A1 - Burgmeier, J. A1 - Krebber, Katerina A1 - Schade, W. T1 - Fiber optic bend and temperature sensing in femtosecond laserstructured POF T2 - 22nd International Conference on Optica Fiber Sensors (OFS-22) CY - Beijing, China DA - 2012-10-15 PY - 2012 AN - OPUS4-27174 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Meng, Birgit A1 - Fontana, Patrick A1 - Maier, Bärbel T1 - Vermeidung stofflicher Probleme bei der Wärmebehandlung von Beton T2 - Fachtagung 'Beton für alle Wetter' CY - Berlin, Germany DA - 2012-11-22 PY - 2012 SP - 109 EP - 116 AN - OPUS4-27175 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Uzoegbo, H.C. A1 - Bjegovic, D. A1 - Schmidt, Wolfram A1 - Kitobo, W. T1 - SCM potential in Africa KW - Africa KW - Cement KW - Supplementary cementitious materials PY - 2012 SN - 0263-6050 SN - 0308-8855 IS - August SP - 27 EP - 38 PB - Swan CY - Leatherhead AN - OPUS4-27176 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Schmidt, Wolfram A1 - Kumaran, G.S. T1 - Clearing the way KW - Cement KW - Concrete KW - Africa KW - Research policy PY - 2012 SN - 0959-6038 IS - October SP - 86 EP - 88 PB - Holbrook & Son CY - Dorking AN - OPUS4-27177 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Rücker, Werner A1 - Karabeliov, Krassimire A1 - Cuéllar, Pablo A1 - Baeßler, Matthias A1 - Georgi, Steven ED - Savidis, S.A. T1 - Ermittlung der Tragfähigkeit von Offshore Rammpfählen unter zyklischer Belastung - Modellversuche, Großversuche, numerische Verfahren T2 - 8. Hans Lorenz Symposium CY - Berlin, Germany DA - 2012-10-11 PY - 2012 SN - 978-3-8440-1377-1 SN - 0342-3905 N1 - Serientitel: Veröffentlichungen des Grundbauinstitutes der Technischen Universität Berlin – Series title: Veröffentlichungen des Grundbauinstitutes der Technischen Universität Berlin IS - 60 SP - 311 EP - 329 PB - Shaker AN - OPUS4-27178 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Witt, Jens A1 - Schukar, Marcus A1 - Krebber, Katerina A1 - Demuth, J. A1 - Pazoutova, H. A1 - Sasek, L. A1 - Santostefano, N. A1 - Fiore, L. A1 - Uotila, J. A1 - Pietrowski, P. T1 - POF Sensors for Personal Protective Equipment (PPE) T2 - 21st International Conference on Plastic Optic Fibers CY - Atlanta, GA, USA DA - 2012-09-10 PY - 2012 AN - OPUS4-27179 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Kalbe, Ute T1 - Stand der Entwicklung harmonisierter Elutionsverfahren für Bauprodukte auf EU Ebene T2 - Beratung des Umweltausschusses des Bundesverbandes der Deutschen Ziegelindustrie e. V. CY - Berlin, Germany DA - 2012-11-13 PY - 2012 AN - OPUS4-27180 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Wöhlecke, Andreas A1 - Müller, Werner T1 - Geosynthetics and their certification for landfill liner and capping systems in Germany T2 - 5th International Conference Geosynthetics Middle East 2012 CY - Abu Dhabi, United Arab Emirates DA - 2012-11-19 PY - 2012 AN - OPUS4-27181 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Holzweber, Markus A1 - Senoner, Mathias A1 - Unger, Wolfgang A1 - Kollmer, F. T1 - BAM-L200: Anew type of refrence material for the determination of lateral resolution and the calibration of length scale T2 - Fachtagung Nano-Additive CY - Berlin, Germany DA - 2012-11-19 PY - 2012 AN - OPUS4-27182 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Girod, Matthias A1 - Thünemann, Andreas T1 - The impact of digestion on the physicochemical properties of silver nanoparticles and their toxicity for intestinal cells T2 - SAS2012 CY - Sydney, Australia DA - 2012-11-19 PY - 2012 AN - OPUS4-27183 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Reinholz, Uwe A1 - Riesemeier, Heinrich A1 - Buzanich, Günter A1 - Radtke, Martin A1 - Bjeoumikhov, S. A1 - Ihle, S. A1 - Soltau, H. A1 - Langhoff, N. A1 - Wedell, R. T1 - The Colour X-ray Camera: Basics, Applications and Perspectives T2 - 11th International Conference on Synchrotron Radiation Instrumentation CY - Lyon, France DA - 2012-07-09 PY - 2012 AN - OPUS4-27184 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Rakotondrajoa, Andrianiaina A1 - Buzanich, Günter A1 - Radtke, Martin A1 - Reinholz, Uwe A1 - Riesemeier, Heinrich A1 - Raboanary, R. A1 - Vincze, L. T1 - Determination of the Efficiency of a Silicon Drift Detector (SDD9 by Monte Carlo Simulation T2 - Denver X Ray Conferences 2012 CY - Denver, CO, USA DA - 2012-08-06 PY - 2012 AN - OPUS4-27185 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Rakotondrajoa, Andrianiaina A1 - Buzanich, Günter A1 - Radtke, Martin A1 - Reinholz, Uwe A1 - Riesemeier, Heinrich A1 - Raboanary, R. A1 - Vincze, L. T1 - Improvement of PLS regression based XRF spectroscopy quantification using multiple step procedure and Monte Carlo simulation T2 - 12th International Symposium on Radiation Physics CY - Rio de Janeiro, Brazil DA - 2012-10-07 PY - 2012 AN - OPUS4-27186 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Girod, Matthias A1 - Weidner, Steffen A1 - Thünemann, Andreas T1 - Online characterization of silver nanoparticles from continuous synthesis with scattering methods T2 - SAS2012 CY - Sydney, Australia DA - 2012-11-19 PY - 2012 AN - OPUS4-27187 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Buzanich, Günter A1 - Radtke, Martin A1 - Reinholz, Uwe A1 - Rakotondrajoa, Andrianiaina A1 - Raboanary, R. T1 - New approach for PLS regression based XRF spectroscopy quantification method T2 - European Conference on X-Ray Spectrometry (EXRS) CY - Vienna, Austria DA - 2012-06-18 PY - 2012 AN - OPUS4-27188 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Savoly, Z. A1 - Buzanich, Günter A1 - Záray, G. A1 - Pepponie, G. A1 - Nagy, P. A1 - Streli, C. T1 - Investigation of copper distribution and speciation in soil-inhabiting nematodes by means of synchrotron radiation T2 - European Conference on X-Ray Spectrometry (EXRS) CY - Vienna, Austria DA - 2012-06-18 PY - 2012 AN - OPUS4-27189 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Guilherme, A. A1 - Buzanich, Günter A1 - Radtke, Martin A1 - Reinholz, Uwe A1 - Coroado, J. A1 - Dos Santos, J. F. T1 - Synchroton Micro-XRF with Compound Refractive Lenses (CRLs) for tracing key elements on Portuguese glazed ceramics T2 - 14th International Workshop on Radiation Imaging Detectors CY - Figueira da Foz, Portugal DA - 2012-07-01 PY - 2012 AN - OPUS4-27190 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Unger, Wolfgang T1 - Referenzmaterialien für die Oberflächen- und Mikrobereichsanalytik: Stand und zukünftige Entwicklungen T2 - Festkolloquium 100 Jahre Referenzmaterialien der BAM 1912 - 2012 CY - Berlin, Germany DA - 2012-11-15 PY - 2012 AN - OPUS4-27141 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Unger, Wolfgang T1 - X-ray Photoelectron Spectroscopy (XPS) T2 - Workshop: Instrumentierung für das Avogadro-Projekt CY - Berlin, Germany DA - 2012-08-03 PY - 2012 AN - OPUS4-27142 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Girard-Lauriault, P.-L. A1 - Unger, Wolfgang A1 - Dietrich, Paul A1 - Gross, Thomas T1 - Chemical Characterization of the Ageing of Nitrogen-rich Plasma Polymer Films under Various Ambient Conditions T2 - 13th International Conference on Plasma Surface Engineering CY - Garmisch-Partenkirchen, Germany DA - 2012-09-10 PY - 2012 AN - OPUS4-27143 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Girard-Lauriault, P.-L. A1 - Unger, Wolfgang A1 - Dietrich, Paul A1 - Gross, Thomas T1 - Is Quantitative CD-XPS of Plasma Deposited Organic Coatings a Valid Analytical Procedure? T2 - 13th International Conference on Plasma Surface Engineering CY - Garmisch-Partenkirchen, Germany DA - 2012-09-10 PY - 2012 AN - OPUS4-27144 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Unger, Wolfgang T1 - Optimierung von Microarrays durch Anwendung physikalischer Methoden der chemischen Oberflächenanalytik T2 - Arbeitstreffen "Quantitative Analytik von (Protein-)Microarrays" CY - Potsdam, Germany DA - 2012-10-04 PY - 2012 AN - OPUS4-27145 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Habel, Wolfgang T1 - Anwendungsbeispiele im geotechnischen Monitoring mit Sensoren auf Basis von FBG, akustischen und quasiverteilten Sensoren (invited lecture) T2 - Fachseminar Faseroptische Sensoren CY - Weimar, Germany DA - 2012-09-24 PY - 2012 AN - OPUS4-27146 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Habel, Wolfgang T1 - Fasersensoren für Messungen im geotechnischen Umfeld - Einsatzanforderungen (invited lecture) T2 - Fachseminar Faseroptische Sensoren CY - Weimar, Germany DA - 2012-09-24 PY - 2012 AN - OPUS4-27147 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Unger, Wolfgang A1 - Min, Hyegeun A1 - Girard-Lauriault, Pierre-Luc A1 - Graf, Nora A1 - Swaraj, Sufal A1 - Lippitz, Andreas T1 - Ageing Processes Occurring on Nanoscaled Aminated Surfaces as Observed by ToF-SIMS/PCA, NEXAFS Spectroscopy and XPS T2 - AVS 59th International Symposium and Exhibition CY - Tampa, FL, USA DA - 2012-10-28 PY - 2012 AN - OPUS4-27148 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Unger, Wolfgang A1 - Hodoroaba, Vasile-Dan A1 - Rackwitz, Vanessa A1 - Procop, M. T1 - Test Materials and Procedures for the day-by-day Performance Check of X-Ray Spectrometers attached to a SEM in Compliance with ISO 15632 T2 - 17. Arbeitstagung "Angewandte Oberflächenanalytik" AOFA CY - Soest, Germany DA - 2012-09-24 PY - 2012 AN - OPUS4-27149 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Unger, Wolfgang T1 - Zum Stand von Normung in der Oberflächenanalytik T2 - 17. Arbeitstreffen "Angewandte Oberflächenanalytik" AOFA CY - Soest, Germany DA - 2012-09-24 PY - 2012 AN - OPUS4-27150 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Kraus, Werner A1 - Hennig, C. A1 - Takao, S. A1 - Takao, K. A1 - Weiss, S. A1 - Emmerling, Franziska A1 - Meyer, M. A1 - Scheinost, A.C. T1 - Hexanuclear actinide (IV) carboxylate formed by competition between ligation and hydrolysis T2 - The 15th International Conference on X-ray Absorption Fine Structure (XAFS15) CY - Beijing, China DA - 2012-07-22 PY - 2012 AN - OPUS4-27251 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Hoskins, Jessica A1 - Falkenhagen, Jana A1 - Weidner, Steffen T1 - Characterization and Degradation of Randomly Branched Polyesters Utitizing Liquid Chromatography and Mass Spectrometry T2 - WMRIF 3rd Young Materials Scientists Workshop CY - Bangkok, Thailand DA - 2012-08-28 PY - 2012 AN - OPUS4-27252 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Buzanich, Günter A1 - Radtke, Martin A1 - Hahn, M. T1 - Investigation of the bone tissue contamination with implatcomponents after metal-on-metal hip resurfacing arthrolasty. T2 - 4th joint BER II and BESSY II user meeting 2012 CY - Berlin, Germany DA - 2012-12-12 PY - 2012 AN - OPUS4-27253 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Miccoli, Lorenzo T1 - Characterization and qualification of intervention techniques: vertical elements T2 - Workshop on seismic risk preparedness plans for the conservation and exploitation of archeological sites and historic centres CY - Padua-Verona, Italy DA - 2012-11-27 PY - 2012 AN - OPUS4-27255 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Auersch, Lutz T1 - Die Berechnung erschütterungsmindernder Eisenbahnfahrwege mit der kombinierten Finite-Element-Randelement-Methode N2 - Um die Erschütterungen infolge von Schienenverkehr zu reduzieren, werden elastische Elemente in den Eisenbahnfahrweg eingebaut: elastische Zwischenlagen zwischen Schiene und Schwelle, elastische Schwellensohlen zwischen Schwelle und Schotter und Unterschottermatten unterhalb des Schotters. Das elastische Element führt zu einer ausgeprägten Eigenfrequenz des Gesamtsystems bestehend aus Fahrzeug, Fahrweg und Untergrund. Die Wirkung der elastischen Elemente beruht darauf, dass die Frequenzen oberhalb dieser Eigenfrequenz abgemindert werden. Für die Ermittlung der Wirksamkeit der Minderungsmaßnahme werden das Gleis mit elastischem Element und das Gleis ohne elastisches Element berechnet. Beide Eisenbahnfahrwege werden mit der kombinierten Finite-Element- Randelement-Methode berechnet, wobei das Gleis einschließlich des Schotters mit der Finite-Element-Methode berechnet wird, der Gleisuntergrund hingegen mit der Randelementmethode. Für die erschütterungsmindernden Gleise erweist es sich als vorteilhaft, spezielle Gleisendelemente an den Seiten des FE-Modells anzufügen. Dadurch wird zusätzlich zur Unendlichkeit des Untergrundes auch die unendliche Länge des Gleises berücksichtigt. Für die Ermittlung der Minderungswirkung werden die frequenzabhängige Nachgiebigkeit des Gleise, die Kraftübertragung des Gleises, und die Fahrzeug-Fahrweg-Wechselwirkung berechnet. Schließlich werden die Kraftminderungen verschiedener Eisenbahnfahrwege dargestellt und der Einfluss der wesentlichen Parameter untersucht. T2 - 4. VDI-Fachtagung - Baudynamik 2012 CY - Kassel, Germany DA - 25.04.2012 PY - 2012 SN - 978-3-18-092160-0 SN - 0083-5560 N1 - Serientitel: VDI-Berichte – Series title: VDI-Berichte VL - 2160 SP - 171 EP - 184 PB - VDI-Verl. CY - Düsseldorf AN - OPUS4-27256 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Avilov, Vjaceslav A1 - Schneider, André A1 - Lammers, Marco A1 - Gumenyuk, Andrey A1 - Rethmeier, Michael T1 - Electromagnetic control of the weld pool dynamics in partial penetration laser beam welding of aluminium alloys N2 - An oscillating (AC) magnet field was used to suppress porosity formation and to stabilize the surface of the weld pool in bead-on-plate partial penetration 4.4 kW Nd:YAG laser beam welding of AW-5754 plates in PA position. The magnet was mounted on the laser welding head. The magnet field (up to 0.4 T and 10 kHz) was oriented perpendicular the welding direction. The analysis of the weld cross-sections and x-ray images shows a drastic reduction (up to 90%) of porosity contents in the welds. The observed effects can be explained in terms of electromagnetically (EM) induced 'Archimedes' forces as well as the EM stirring flow in the weld pool. Moreover, usage of AC magnetic fields results in a significant reduction (up to 50%) of the surface roughness of the welds. This effect can be explained in terms of electromagnetic (EM) contribution to the surface tension (the Garnier-Moreau effect) T2 - ICALEO 2012 - 31st International congress on applications of lasers & electro-optics CY - Anaheim, CA, USA DA - 23.09.2012 PY - 2012 IS - Paper 701 SP - 250 EP - 256 AN - OPUS4-27257 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Habel, Wolfgang ED - Liao, Y. ED - Jin, W. ED - Sampson, D.D. ED - Yamauchi, R. ED - Chung, Y. ED - Nakamura, K. ED - Rao, Y. T1 - Fiber-optic strain sensors are making the leap from lab to industrial use - reliability and validation as precondition for standards N2 - Fiber-optic sensors are increasingly used if special requirements avoid the application of electrical sensors, or economic benefit is promised. The scientific background is well developed; however, there are some restrictions with respect to long-term reliable use. For a widespread practical use, sensor products must be manufactured, characterized and validated according to standards. Guidelines on how to apply sensors and evaluate their operation on-site including special facilities to evaluate applied sensors are needed. The paper will present validation methods to evaluate the quality of sensor systems function. It will also indicate lacks of knowledge and methods to be filled to promote the use of FOS. T2 - OFS2012 - 22nd International conference on optical fiber sensors CY - Beijing, China DA - 2012-10-15 KW - Application KW - Fiber optic sensor KW - Validation KW - Qualification KW - Strain transfer KW - Standards KW - Guideline KW - Fiber optics KW - Reliability KW - Sensors PY - 2012 U6 - https://doi.org/10.1117/12.981530 SN - 0277-786X SN - 1996-756X N1 - Serientitel: Proceedings of SPIE – Series title: Proceedings of SPIE IS - 8421 SP - 84210H-1 - 84210H-12 PB - SPIE, the International Society for Optical Engineering CY - Bellingham, Wash. AN - OPUS4-27258 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Habel, Wolfgang A1 - Krebber, Katerina T1 - Application of fiber-optic sensors for health monitoring purposes in geo-engineering T2 - 4th International forum on opto-electronic sensor-based monitoring in geo-engineering CY - Suzhou, China DA - 2012-10-11 KW - BOFDA KW - Fibre-optic sensor KW - Distributed sensor KW - Brillouin sensor KW - Polymer optical fibers (POF) KW - POF sensor KW - POF OTDR KW - Strain sensor KW - Technical textiles KW - Geotextiles KW - Geophone KW - Fabry-Perot sensor KW - Pile test KW - Impact KW - Acoustic wave PY - 2012 SP - 4 EP - 15 AN - OPUS4-27259 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Gründer, Klaus-Peter A1 - Menrad, Andreas A1 - Kadoke, Daniel T1 - Verformungsverhalten vorgeschädigter Gefahrgutumschließungen aus Kunststoff T2 - 16. GMA/ITG-Fachtagung Sensoren und Messsysteme 2012 CY - Nuremberg, Germany DA - 2012-05-22 PY - 2012 AN - OPUS4-27260 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Barthel, Maria A1 - Kühne, Hans-Carsten A1 - Schmidt, Wolfram ED - Bager, D. H. ED - Silfwerbrand, J. T1 - Multilayer concrete pavers - solutions for the mitigation of the urban heat island effect N2 - The large scale application of self-cooling concrete pavers is a future-oriented approach to reduce the urban heat island effect in inner-city areas. Making use of evaporation enthalpy, these new pavements counterbalance the absorption of solar radiation and the subsequent transfer of heat to the surrounding environment. The concrete pavers consist of a permeable top-layer and a storage layer. As the different requirements of these layers demand different concrete mixtures they are developed and optimised for their respective functions. This paper presents some results of the concrete mixture design and Solutions that combine a sufficient compressive strength as well as good water transportation properties for the face concrete layer. T2 - fib Symposium Stockholm 2012 'Concrete structures for a sustainable community' CY - Stockholm, Sweden DA - 11.06.2012 KW - Urban heat island effect KW - Concrete multilayer pavers KW - Permeability KW - Fibre concrete PY - 2012 SN - 978-91-980098-1-1 SP - 513 EP - 516 PB - Royal Institute of Technology CY - Stockholm AN - OPUS4-27271 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Kaltzakorta, O. A1 - Wäsche, Rolf A1 - Hartelt, Manfred A1 - Aginagalde, A. A1 - Tato, W. T1 - Influence of polymer filler on tribological properties of thermoplastic polyurethane under oscillating sliding conditions against cast iron N2 - The tribological behaviour of unfilled thermoplastic polyurethane (TPU) and a polymer sphere filled (TPUG) thermoplastic polyurethane have been studied under oscillating sliding condition against cast iron as a counterpart. In the case of unfilled TPU, the wear mechanisms are dominated by particle detachment and roll formation. In principle, TPUG also showed a similar wear mechanism as that of unfilled TPU; in addition, particle pull-out and delamination are also observed. Wear volume of TPUG was significantly higher than that for the unfilled TPU and this is attributed to the different material removal processes taking place in the material during sliding. The polymer spheres as a filler material deteriorated the wear resistance of TPU because of improper adhesion and bonding of filler in the TPU matrix and therefore it contributed to more wear. In case of TPU the friction behaviour was strongly dependant on the temperature and surface roughness of the counter body. The results showed that below the glass transition temperature higher friction values are observed with higher counter body surface roughness. However, above the glass transition temperature, higher friction values are observed with a smoother surface roughness of the counter body. In case of TPUG, the friction behaviour was not significantly dependent on surface roughness of the counter body. KW - Dry sliding KW - Polymers KW - Cast iron KW - Temperature PY - 2012 U6 - https://doi.org/10.1007/s11249-012-0017-6 SN - 1023-8883 SN - 1573-2711 VL - 48 IS - 2 SP - 209 EP - 216 PB - Springer Science Business Media B.V. CY - Dordrecht AN - OPUS4-27272 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Kühn, Julius A1 - Hodoroaba, Vasile-Dan A1 - Linke, S. A1 - Moritz, W. A1 - Unger, Wolfgang T1 - Characterization of Pd-Ni-Co alloy thin films by ED-EPMA with application of the STRATAGEM software N2 - Ternary thin film alloys based on Pd, Ni and Co on silicon wafers have been characterized in order to determine elemental composition and thickness. A broad variety of alloy compositions was obtained on one and the same substrate by magnetron dc-co-sputter deposition. Energy-dispersive electron probe X-ray microanalysis of these 'multi' alloy composition samples is performed in a non-destructive, precise and, if optimized, also in a time-saving way. The local thickness of the layers under study was in between 50 nm and 250 nm. Pure element bulk materials have been employed as reference specimens. The results attained in this study are compared to those obtained by other analytical methods as Auger electron spectroscopy and X-ray photo electron spectroscopy. KW - Ternary alloys KW - Film thickness KW - Elemental composition KW - Quantification KW - K-values KW - ED-EPMA KW - STRATAGEM PY - 2012 U6 - https://doi.org/10.1002/sia.4974 SN - 0142-2421 SN - 1096-9918 VL - 44 IS - 11-12 SP - 1456 EP - 1458 PB - Wiley CY - Chichester AN - OPUS4-27273 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Vintzileou, E. A1 - Valluzzi, M.R. A1 - Mazzon, N. A1 - Posipsil, S. A1 - Miccoli, Lorenzo ED - Jasienko, J. T1 - Systemic improvement of overall seismic response T2 - SAHC 2012 - 8th International conference on structural analysis of historical constructions CY - Wroclaw, Poland DA - 2012-10-15 KW - Historic structures KW - Shaking table tests KW - Subassemblies KW - Scaled models PY - 2012 SN - 978-83-7125-216-7 SN - 0860-2395 VL - 3 SP - 2897 EP - 2905 PB - DWE CY - Wroclaw, Poland AN - OPUS4-27274 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Miccoli, Lorenzo A1 - Müller, U. A1 - Silva, B. A1 - Da Porto, F. A1 - Hracov, S. A1 - Pospisil, S. A1 - Adami, C.-E. A1 - Vintzileou, E. A1 - Vasconcelos, G. A1 - Poletti, E. ED - Jasienko, J. T1 - Overview of different strengthening techniques applied on walls used in historical structures T2 - SAHC 2012 - 8th International conference on structural analysis of historical constructions CY - Wroclaw, Poland DA - 2012-10-15 KW - Stone masonry KW - Brick masonry KW - Earthen materials KW - Half timbered walls KW - Grouting PY - 2012 SN - 978-83-7125-216-7 SN - 0860-2395 VL - 3 SP - 2870 EP - 2878 PB - DWE CY - Wroclaw, Poland AN - OPUS4-27275 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Paganoni, S. A1 - D'Ayala, D. A1 - Miccoli, Lorenzo A1 - Hracov, S. A1 - Urushadze, S. A1 - Wünsche, M. A1 - Adami, C.-E. A1 - Vintzileou, E. A1 - Moreira, S. A1 - Oliveira, D.V. A1 - James, P. A1 - Cóias e Silva, V. ED - Jasienko, J. T1 - Connections and dissipative systems with early warning T2 - SAHC 2012 - 8th International conference on structural analysis of historical constructions CY - Wroclaw, Poland DA - 2012-10-15 KW - Seismic strengthening KW - Structural connections KW - Heritage buildings PY - 2012 SN - 978-83-7125-216-7 SN - 0860-2395 VL - 3 SP - 2888 EP - 2896 PB - DWE CY - Wroclaw, Poland AN - OPUS4-27276 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Miccoli, Lorenzo A1 - Müller, U. ED - Jasienko, J. T1 - Characterisation of earthen elements. A comparison between earth block masonry, rammed earth and cob T2 - SAHC 2012 - 8th International conference on structural analysis of historical constructions CY - Wroclaw, Poland DA - 2012-10-15 KW - Earthen materials KW - Compression test KW - Diagonal compression test KW - Initial shear strength test PY - 2012 SN - 978-83-7125-216-7 SN - 0860-2395 VL - 1 SP - 841 EP - 849 PB - DWE CY - Wroclaw, Poland AN - OPUS4-27277 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Zerbst, Uwe A1 - Madia, Mauro A1 - Hellmann, D. T1 - Fracture mechanics model for predicting fatigue strength of metallic alloys containing large second phase particles T2 - ECF 19 - 19th European conference on fracture - Fracture mechanics for durability, reliability and safety CY - Kazan, Russia DA - 2012-08-26 KW - Fatigue strength KW - S-N curve KW - Fracture mechanics KW - Crack propagation KW - Short cracks KW - Bruchmechanik KW - Schwingfestigkeit KW - Bauteilbewertung PY - 2012 SN - 978-5-905576-18-8 IS - Proceeding-ID 116 SP - 1 EP - 14 AN - OPUS4-27278 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Zerbst, Uwe A1 - Ainsworth, R. A. A1 - Madia, Mauro T1 - Reference load versus limit load in engineering flaw assessment: A proposal for a hybrid analysis option N2 - The net section limit load FY necessary for assessment at static loading is a key input for the accuracy of any elastic–plastic flaw assessment procedure of the R6 type. Unfortunately available limit load solutions are of variable quality since they have been obtained over decades by different methods. As a consequence the results of the fracture analyses such as the critical load or crack size are limited in their accuracy and are often significantly conservative. Further, common limit load solutions based on ligament yielding are inadequate in a number of cases even for through crack configurations and should be replaced by some kind of local yielding solutions. In the present paper a simple and straightforward reference load definition is proposed instead of the limit load which strictly corresponds to a ligament yielding parameter Lr = 1 in the R6 Routine and similar approaches such as the European SINTAP and FITNET methods. This can be determined by finite element simulation for any geometry. In addition to a previous study on thin wall notched plates the method is applied to plates containing shallow semi-elliptical surface cracks. The results demonstrate that the approach provides a suitable extension and improvement of the existing methods. KW - Flaw assessment KW - Reference stress method KW - R6 procedure KW - SINTAP KW - FITNET KW - Limit load KW - Reference load PY - 2012 U6 - https://doi.org/10.1016/j.engfracmech.2011.10.018 SN - 0013-7944 SN - 1873-7315 VL - 91 SP - 62 EP - 72 PB - Elsevier Science CY - Kidlington AN - OPUS4-27279 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Quiroz Penaranda, Vanessa A1 - Gumenyuk, Andrey A1 - Rethmeier, Michael T1 - Investigation of the hot cracking susceptibility of laser welds with the controlled tensile weldability test N2 - Due to significant developments over the last decades, laser beam welding has become a well-established industrial process offering high processing speeds and causing low component distortions. But an important issue currently preventing its intense use, especially in the energy or plant construction sector where high alloy steels are applied, concerns hot crack formation. Although considerable advances in understanding hot cracking mechanisms have been made, most of the known influencing factors are metallurgical in character. The thermo-mechanical effects are barely considered or quantified. Up to the present, there exist numerous hot cracking tests that were however conceived for welding methods other than laser beam welding. Considering the special features of the laser welding process, such as high cooling rates and the narrow process zone, results obtained with other welding techniques and test procedures cannot be transferred to laser beam welding. In this study, the laser beam weldability of various stainless steels was examined in terms of their susceptibility to hot cracking by means of the controlled tensile weldability test, which was proven to be suitable for use in conjunction with CO2 laser welding. This test allows the application of tensile strain at a variable fixed cross-head speed transverse to the welding direction. Full and partial penetration bead-on-plate welds were produced. In a first attempt to determine the impact of the applied external strain on the local transient strains and strain rates near the weld pool, an optical system was used to measure the backside surface of partial penetration welds. The results showed the influence of the strain and the strain rates on hot crack formation. Furthermore, a classification of the studied austenitic, duplex and ferritic stainless steels according to the established test criteria (critical strain and cross-head speed) was conducted. KW - Laser beam welding KW - CO2 laser KW - Hot cracking KW - Stainless steels KW - Critical strains KW - Strain rates KW - Hot cracking test KW - Controlled tensile weldability test PY - 2012 U6 - https://doi.org/10.1177/0309324712462120 SN - 0309-3247 SN - 2041-3130 VL - 47 IS - 8 SP - 587 EP - 599 PB - Sage CY - London AN - OPUS4-27281 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - GEN A1 - Hennecke, Manfred T1 - Past, present, and future of polymer science at BAM PY - 2012 U6 - https://doi.org/10.1002/macp.201200555 SN - 1022-1352 SN - 1521-3935 VL - 213 IS - 22 SP - 2327 EP - 2328 PB - Wiley-VCH Verl. CY - Weinheim AN - OPUS4-27282 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Rabe, Torsten A1 - Güther, Wolfgang A1 - Oder, Gabriele T1 - Schadensanalyse an gelöteten Keramik-Metall-Verbunden T2 - DKG-Symposium "Fügen von Keramik" CY - Erlangen, Germany DA - 2012-12-04 PY - 2012 AN - OPUS4-27284 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Mieller, Björn A1 - Gemeinert, Marion A1 - Rabe, Torsten T1 - Tieftemperaturfügen mit Nano- und Submikronsilberpasten T2 - DKG-Symposium "Fügen von Keramik: Grundlagen - Verfahren - Anwendungen" CY - Erlangen, Germany DA - 2012-12-04 PY - 2012 N1 - Geburtsname von Mieller, Björn: Brandt, B. - Birth name of Mieller, Björn: Brandt, B. AN - OPUS4-27285 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Schoknecht, Ute T1 - Bewertung der Umweltverträglichkeit von biozid ausgerüsteten Materialien T2 - 6. N.I.Ke.-Workshop "Segen und Fluch - Biozide, I. Verwendung, Analytik, Bewertung", BAM CY - Berlin, Germany DA - 2012-11-19 PY - 2012 AN - OPUS4-27286 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Stephan, Ina T1 - Anforderungen an die Wirksamkeitsbewertung von Materialschutzmitteln T2 - 6. N.I.Ke.-Workshop "Segen und Fluch - Biozide i. Verwendung, Analytik, Bewertung/BAM CY - Berlin, Germany DA - 2012-11-19 PY - 2012 AN - OPUS4-27287 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Kadenkin, Alexander A1 - Geisler, S. A1 - Florek, S. A1 - Bierstedt, Andreas A1 - Gornushkin, Igor B. A1 - Riedel, Jens A1 - Panne, Ulrich T1 - Laser induced breakdown spectroscopy with the use of fast diode pumped solid state laser T2 - Doktorandenseminar Spektroskopie und Spurenanalytik der Arbeitskreise DASp und A.M.S.El. CY - Mainz, Germany DA - 2012-07-09 PY - 2012 AN - OPUS4-27301 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Rurack, Knut A1 - Weller, Michael G. A1 - Dietrich, Paul A1 - Unger, Wolfgang T1 - Development and Characterization of a Photostable Boron-dipyrromethene Dye as a Versatile Probe of the Analysis of Surface Functional Groups T2 - Smart Surfaces 2012 CY - Dublin, Ireland DA - 2012-03-06 PY - 2012 AN - OPUS4-27302 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Metzinger, Anikó A1 - Kadenkin, Alexander A1 - Galbács, G. A1 - Gornushkin, Igor B. A1 - Gaspar, A. T1 - Folyadékminták LIBS mérésére szolgáló mintael?készítési módszerek összehasonlítása T2 - 55. Magyar Spektrokemiai Vándorgyules CY - Veszprém, Hungary DA - 2012-07-09 PY - 2012 AN - OPUS4-27303 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Hönig, D. A1 - Schneider, S. A1 - Domnick, R. A1 - Belzner, M. A1 - Beck, Uwe A1 - Hertwig, Andreas A1 - Stephanowitz, Ralph A1 - Weise, Matthias T1 - Optical layer systems for product authentication: interference, scattering, light diffusion and ellipsometric encoding as public, hidden and forensic security features N2 - Embedding of information on surfaces is state of the art for identification testing in which public, hidden and forensic features are used. In many instances, the legal authentication of a product, a material or a document is required. Among the surface-based encoded labels, bar codes and data matrices are most frequently applied. They are publicly visible. The material itself is irrelevant, only a sufficient optical contrast is required. However, a strong material dependence of the label can be achieved by means of Fabry-Perot layer stacks. Stack designs are described with regard to all three security levels: public features (e.g. color and tilt effect) perceptible by the human eye, hidden features (e.g. optical response in a given spectral range) detectable by commonly available instruments and forensic features (ellipsometric quantities Ψ and Δ as a function of wavelength λ and angle of incidence AOI) only detectable by sophisticated instruments. Regarding material-correlated authentication, ellipsometric quantities Ψ and Δ are used as encoded forensic features for the first time. Hence, Fabry-Perot layer stacks as information carriers in combination with imaging ellipsometry as optical read-out system provide all-in-one anti-counterfeiting capabilities. T2 - PSE 2012 - 13th International conference on plasma surface engineering CY - Garmisch-Partenkirchen, Germany DA - 10.09.2012 KW - Fabry-Perot layers KW - Ellipsometry KW - Anti-counterfeiting PY - 2012 UR - http://www.pse-conferences.net/tl_files/pse2012/abstractupload/PSE2012-PO1001-ext.pdf SP - 1 EP - 4 AN - OPUS4-27304 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Beck, Uwe A1 - Hielscher, Stefan A1 - Weise, Matthias A1 - Mix, Renate A1 - Lerche, D. A1 - Rietz, U. T1 - Progress in quantitative adhesion testing of films and coatings by means of centrifuge technology - present state of the art N2 - Standardised conventional adhesion tests are time-consuming single-sample tests. Moreover, except for the pull-off test, all these tests provide only qualitative or semi-quantitative (ranking, respectively measurement of an adhesion-correlated quantity) information on adhesion. Sometimes, adhesion is evaluated even under compressive stress conditions (e.g. cross-cut and scratch test), which itself is a contradiction to adhesive strength as defined in terms of tensile force per area. For optical coatings it has been shown that the pull-off test in a centrifuge is definitely a promising alternative with respect to the reliable, fast and quantitative determination of adhesive strength in N/mm2. The force-controlled centrifuge test is the only multiple-sample test which provides reliable quantitative information on the adhesive strength in agreement with DIN EN 15870 and DIN EN ISO 4624 on a statistical basis for up to eight samples simultaneously tested under identical testing conditions. T2 - PSE 2012 - 13th International conference on plasma surface engineering CY - Garmisch-Partenkirchen, Germany DA - 10.09.2012 KW - Adhesion KW - Centrifuge test KW - Plasma modification KW - Tensile strength PY - 2012 UR - http://www.pse-conferences.net/tl_files/pse2012/abstractupload/PSE2012-OR2601-ext.pdf SP - 1 EP - 4 AN - OPUS4-27305 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Graf, Benjamin A1 - Gumenyuk, Andrey A1 - Rethmeier, Michael T1 - Laser metal deposition as repair technology for stainless steel and titanium alloys N2 - In a repair process chain, damaged areas or cracks can be removed by milling and subsequently be reconditioned with new material deposition. The use of laser metal deposition has been investigated for this purpose. The material has been deposited into different groove shapes, using both stainless steel and Ti-6Al-4 V. The influence of welding parameters on the microstructure and the heat affected zone has been studied. The parameters have been modified in order to achieve low heat input and consequently low distortion as well as low metallurgical impact. Finally, an evaluation of the opportunities for an automatized repair process is made. T2 - LANE 2012 - Laser Assisted net shape engineering 7 CY - Fürth, Germany DA - 2012-11-12 KW - Laser metal deposition KW - Laser powder cladding KW - Repair welding KW - Ti-6Al-4 V KW - Stainless steel PY - 2012 U6 - https://doi.org/10.1016/j.phpro.2012.10.051 N1 - Serientitel: Physics Procedia – Series title: Physics Procedia VL - 39 SP - 376 EP - 381 AN - OPUS4-27306 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Schmitz-Niederau, M. A1 - Lausch, Thomas T1 - Erfahrungen bei der Verarbeitung von bainitischen CrMoV-Stählen für dickwandige petrochemische Reaktoren T2 - 5. FDBR-Werkstofftagung - "Werkstofftechnologien für neue Kraftwerke" CY - Düsseldorf, Germany DA - 2012-11-15 PY - 2012 AN - OPUS4-27307 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Schmitz-Niederau, M. A1 - Lausch, Thomas T1 - Erfahrungen bei der Verarbeitung von bainitischen CrMoV-Stählen für dickwandige petrochemische Reaktoren T2 - DVS Congress 2012 CY - Saarbrücken, Germany DA - 2012-09-17 PY - 2012 AN - OPUS4-27308 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Kromm, Arne A1 - Steppan, Enrico A1 - Kannengießer, Thomas T1 - High-energy Synchrotron Study of the Stress-stain Behaviour of Hydrogen-charged High Strength Steel T2 - VISUAL-JW 2012 CY - Osaka, Japan DA - 2012-11-29 PY - 2012 AN - OPUS4-27309 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Bleul, Regina A1 - Thiermann, Raphael A1 - Bachran, D. A1 - Maskos, M. T1 - Functional Polymersomes - Potential Multi-Tool for Targeted Cancer Therapy T2 - NanoBiomed 2012 - Nanomaterials for Biomedical Technologies CY - Frankfurt am Main, Germany DA - 2012-03-06 PY - 2012 AN - OPUS4-27310 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Dudek, Gabriele T1 - Akkreditierung - Was gibt es zu R(r)egeln? - Grundsätze und Rahmenbedingungen der Regelentstehung T2 - Akkreditierungsforum 2012 CY - Berlin, Germany DA - 2012-06-11 PY - 2012 AN - OPUS4-27262 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Emmerling, Franziska A1 - Orgzall, I. A1 - Dietzel, B. A1 - Schulz, B. A1 - Larrucea, J. T1 - Ordering the amorphous - Structures in PBD LED materials N2 - The class of 2,5 disubstituted-1,3,4-oxadiazoles containing a biphenyl unit on one side is intensively used as electron transport materials to enhance the performance of organic light emitting diodes (OLEDs). In contrast to the ongoing research on these materials insights in their structure-property relationships are still incomplete. To overcome the structural tentativeness and ambiguities the crystal structures of 2-(4-biphenylyl)-5-(4-tert-butylphenyl)-1,3,4-oxadiazole, that of the related compound 2-(4-biphenylyl)-5-phenyl-1,3,4-oxadiazole and of 2-(4-biphenylyl)-5-(2,6-dimethylphenyl)-1,3,4-oxadiazole are determined. A comparison with the results of GAUSSIAN03 calculations and similar compounds in the Cambridge Structural Database leads to a profound characterization. KW - OLED KW - PBD KW - Diphenyl-1,3,4-oxadiazole KW - Crystallization PY - 2012 U6 - https://doi.org/10.1016/j.molstruc.2012.04.040 SN - 0022-2860 SN - 1872-8014 SN - 0377-046X VL - 1030 SP - 209 EP - 215 PB - Elsevier CY - Amsterdam AN - OPUS4-27264 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Hennig, C. A1 - Takao, S. A1 - Takao, K. A1 - Weiss, S. A1 - Kraus, Werner A1 - Emmerling, Franziska A1 - Scheinost, A.C. T1 - Structure and stability range of a hexanuclear Th(IV)-glycine complex N2 - A hexanuclear Th(IV)–glycine complex was observed by Th L3-edge EXAFS measurements in an aqueous solution. Within the stability range of this complex the positively charged hexanuclear species [Th6(µ3-O)4(µ3-OH)4(H2O)6(Gly)6(HGly)6]6+ was preserved in a crystal with the composition [Th6(µ3-O)4(µ3-OH)4(H2O)6(Gly)6(HGly)6]·(NO3)3(ClO4)3(H2O)3. This complex appears as a result of a competing reaction between hydrolysis and ligation by glycine. At a pH value below the stability range of the hexanuclear complex, crystals with the composition [Th(H2O)3(HGly)3]·(ClO4)4H2O were obtained from the solution. Three water molecules in the thorium coordination sphere indicate that this complex occurs prior to the onset of Th(IV) hydrolysis. PY - 2012 U6 - https://doi.org/10.1039/c2dt31367g SN - 1477-9226 SN - 1477-9234 SN - 1364-5447 VL - 41 SP - 12818 EP - 12823 PB - RSC CY - Cambridge AN - OPUS4-27265 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Schmidt, Wolfram T1 - The African-European SPIN Expert Network - Objectives and Experiences T2 - Workshop zur Antragstellung im ACP-EU Cooperation Programme in Science and Technology II (ACP S&T II) CY - Bonn, Germany DA - 2012-12-04 PY - 2012 AN - OPUS4-27266 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Carvalho, José Joao A1 - Weller, Michael G. A1 - Panne, Ulrich A1 - Schneider, Rudolf T1 - Monitoring caffeine in human saliva using a newly developed ELISA N2 - Caffeine is a useful indicator to quickly assess liver function. High-throughput tests are needed for single-point caffeine measurements, with low cross-reactivity toward its major metabolite, paraxanthine. A newly developed ELISA was compared with an LC-MS/MS reference method, using 60 saliva samples from 10 individuals, before and after caffeine intake. Bland-Altman plot, Student t-test and F-test were used to compare the two methods. Proteins were precipitated using organic solvent and the caffeine recoveries compared with those obtained using sample microfiltration. The antibody, with a low cross-reactivity toward paraxanthine (0.08%), allows quantification of caffeine in saliva samples from 2.5 µg/L to 125 µg/L with high precision and the ELISA shows comparable results to those obtained by LC-MS/MS. A one-step protein precipitation using an organic solvent provides comparable results to a more costly and time-consuming microfiltration pre-treatment of samples. The new ELISA is a fit-for-purpose method to accurately and precisely determine caffeine in saliva samples. KW - Caffeine KW - Cytochrome P450 CYP1A2 KW - Enzyme-linked immunosorbent assay KW - LC-MS/MS KW - Liver function tests KW - Saliva PY - 2012 U6 - https://doi.org/10.1080/00032719.2012.696226 SN - 0003-2719 SN - 1532-236X VL - 45 IS - 17 SP - 2549 EP - 2561 PB - Taylor & Francis CY - Philadelphia, Pa. AN - OPUS4-27267 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Gorbushina, Anna T1 - Mikrobiologische Simulation als Instrument der Schadensanalyse verschiedener Materialien T2 - Workshop "Schadensanalyse polymerbasierter Implantate als Basis für die wissensbasierte Biomaterialentwicklung" am Zentrum für Biomaterialentwicklung und Berlin-Brandenburger Zentrum für Regenerative Therapien, Helmholtz-Zentrum Geesthacht CY - Teltow, Germany DA - 2012-11-22 PY - 2012 AN - OPUS4-27268 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Burkert, Andreas T1 - Korrosionsschäden an nichtrostenden Stählen T2 - DGM Fortbildungsseminar "Bauteilschädigung durch Korrosion" CY - Cologne, Germany DA - 2012-11-28 PY - 2012 AN - OPUS4-27269 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Weidner, Steffen A1 - Falkenhagen, Jana A1 - Bressler, I. T1 - Copolymer composition determined by LC-MALDI-TOF MS coupling and 'MassChrom2D' data analysis N2 - The MALDI-TOF MS analysis of copolymers very often results in complex spectra. A chromatographic separation/fractionation prior to the MALDI investigation can be advantageous since the MALDI mass spectra of fractions very often reveal well-resolved peaks of distinguishable copolymer series. For this purpose, different modes of chromatography have been applied. Chromatographic runs were transferred to MALDI targets utilizing a combined air/electrospray deposition device. Using the new MassChrom2D software, fraction-dependent 2D copolymer compositions plots were obtained providing additional information on the chromatographic mode, and enabling fast modification of conditions to increase separation. KW - Copolymer composition KW - Chromatography KW - Coupling KW - MALDI-TOF mass spectrometry PY - 2012 U6 - https://doi.org/10.1002/macp.201200169 SN - 1022-1352 SN - 1521-3935 VL - 213 IS - 22 SP - 2404 EP - 2411 PB - Wiley-VCH Verl. CY - Weinheim AN - OPUS4-27270 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Liehr, Sascha A1 - Burgmeier, J. A1 - Krebber, Katerina A1 - Schade, W. ED - Liao, Y. ED - Jin, W. ED - Sampson, D.D. ED - Yamauchi, R. ED - Chung, Y. ED - Nakamura, K. ED - Rao, Y. T1 - Fiber optic bend and temperature sensing in femtosecond laser-structured POF N2 - We propose focused femtosecond laser irradiation to create stable and permanent scattering damage in large-core polymer optical fibers. Possible sensing applications using optical time domain reflectometry are discussed and presented. Experiments show that quasi-distributed fiber bend sensors and absolute temperature sensors can be realized by evaluating backscatter intensities. T2 - OFS2012 - 22nd International conference on optical fiber sensors CY - Beijing, China DA - 2012-10-15 KW - Polymer optical fiber KW - POF KW - Optical fiber sensors KW - Bend sensor KW - Temperature sensor KW - Femtosecond laser KW - OTDR KW - Reflectometry PY - 2012 U6 - https://doi.org/10.1117/12.976051 SN - 0277-786X SN - 1996-756X N1 - Serientitel: Proceedings of SPIE – Series title: Proceedings of SPIE IS - 8421 SP - 84213I-1 - 84213I-4 PB - SPIE, the International Society for Optical Engineering CY - Bellingham, Wash. AN - OPUS4-27221 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Poli, Marco A1 - Grätz, Rainer A1 - Schröder, Volkmar T1 - Hazards of accelerated gas explosion venting and their safety-relevant parameters N2 - The effects of a gas explosion in enclosures like vessels can be limited e.g. by gas explosion venting systems. The major design step of this constructive explosion protection method is to determine the required vent area, which depends significantly on whether turbulent combustion exists. However, current standards like NFPA 68 or EN 14994 are applicable only to limited boundary conditions and as far as possible only to laminar flame propagation. Difficulties arise in the assessment or predictability of gas explosion hazard when turbulence occurs. In this research especially venting at elevated initial pressure has been shown to accelerated flame propagations and therefore, to a considerably higher reduced pressure. Therefore, it is essential to provide a broader data base of turbulent combustion and explosion behaviour to verify the existing rules or to determine their safety-relevant parameters. For a better safety assessment or design of protective systems the turbulent combustion and accelerated gas explosion behaviour of quiescent methane in air were investigated at initial pressures up to 8 bar using vessels up to 100 litres. In particular a systematic study was performed to investigate the influence of turbulence on the overpressure development during accelerated gas explosion. Moreover, the present study consider the position of the spark igniters, the burning velocity and the maximum pressure rise for different concentration of fuel as well as the size of orifice and/or vent area. A choice of experimental tests showed under the investigated conditions that not only turbulence inducing obstacles but also over sized vent areas could lead to an increased pressure development and therefore to an inacceptable safety state. Due to the numerous influencing variables of explosion behaviour the presented experimental results help to judge whether another more sophisticated method should be applied than the one described in standards. T2 - Hazards XXIII Symposium CY - Southport, UK DA - 2012-11-12 KW - Turbulent combustion KW - Obstacles KW - Explosion acceleration PY - 2012 SN - 978-0-85295-557-4 N1 - Serientitel: Symposium Series – Series title: Symposium Series VL - 158 IS - Paper 45 SP - 347 EP - 353 AN - OPUS4-27222 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Schilder, Constanze A1 - Kusche, Nadine A1 - Schukar, Vivien A1 - Habel, Wolfgang T1 - Experimental qualification and validation of fibre optic strain sensors T2 - 22nd International Conference on Optical Fiber Sensors OFS 2012 CY - Beijing, China DA - 2012-10-15 PY - 2012 AN - OPUS4-27225 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Schilder, Constanze A1 - Kohlhoff, Harald A1 - Hofmann, Detlef A1 - Habel, Wolfgang T1 - Concrete pile testing and monitoring using structure-integrated fibre-optic strain wave sensors T2 - Workshop on Civil Structural Health Monitoring (CSHM-4) "SHM systems supporting extension of the structures' service life" CY - Berlin, Germany DA - 2012-11-06 PY - 2012 AN - OPUS4-27226 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Resch-Genger, Ute A1 - Felbeck, Tom A1 - Kynast, U. A1 - Lezhnina, M. M. T1 - Nano-Clays: More than Rheological Additives T2 - Nanoadditive Workshop CY - Berlin, Germany DA - 2012-11-19 PY - 2012 AN - OPUS4-27228 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Ashokkumar, Pichandi A1 - Rurack, Knut T1 - Organic-Inoranic hybrid host materials for fluorescence sensing of anions in aqueous media T2 - Netzwerktagung der Alexander von Humboldt-Stiftung CY - Karlsruhe, Germany DA - 2012-11-28 PY - 2012 AN - OPUS4-27229 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Gollnow, Christian A1 - Kannengießer, Thomas T1 - Optical in-situ measurement system for determination of material behaviour in welds T2 - Visual-JW2012 CY - Osaka, Japan DA - 2012-11-28 PY - 2012 AN - OPUS4-27230 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Kühne, Hans-Carsten A1 - Ünal, Murat A1 - Gluth, Gregor T1 - Instandsetzen von Rissen, Korrosion und Betonabtrag T2 - BAM-Fachtagung - Bauen mit Beton im Bestand und Betoninstandsetzung CY - Berlin, Germany DA - 2012-10-23 PY - 2012 AN - OPUS4-27294 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Ramge, Peter A1 - Kühne, Hans-Carsten A1 - Ünal, Murat A1 - Gluth, Gregor T1 - Instandsetzen von Rissen, Korrosion und Betonabtrag T2 - BMO-Fachtagung - Bauen mit Beton im Bestand und Betoninstandsetzung CY - Rostock, Germany DA - 2012-11-07 PY - 2012 AN - OPUS4-27295 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Kühne, Hans-Carsten A1 - Ünal, Murat A1 - Gluth, Gregor T1 - Instandsetzen von Rissen, Korrosion und Betonabtrag T2 - BMO-Fachtagung - Bauen mit Beton im Bestand und Betoninstandsetzung CY - Magdeburg, Germany DA - 2012-11-13 PY - 2012 AN - OPUS4-27298 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Ünal, Murat A1 - Kühne, Hans-Carsten A1 - Gluth, Gregor T1 - Instandsetzen von Rissen, Korrosion und Betonabtrag T2 - BMO-Fachtagung - Bauen mit Beton im Bestand und Betoninstandsetzung CY - Leipzig, Germany DA - 2012-11-27 PY - 2012 AN - OPUS4-27299 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Demidov, Alexandr A1 - Kadenkin, Alexander A1 - Riedel, Jens A1 - Panne, Ulrich T1 - Towards Real Time Sorting With LIBS T2 - 7th International Conference on Laser Induced Breakdown Spectroscopy CY - Luxor, Egypt DA - 2012-09-29 PY - 2012 AN - OPUS4-27300 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Müller, Werner A1 - Biedermann, K. A1 - Engelmann, B. A1 - Wöhlecke, Andreas T1 - Geokunststoffe in der Deponietechnik im Licht der neuen Deponieverordnung KW - Deponieverordnung KW - Deponieabdichtungssysteme KW - BAM-Zulassung KW - Geokunststoffe PY - 2012 SN - 0027-2957 SN - 1863-9763 VL - 44 IS - 1 SP - 8 EP - 12 PB - Erich Schmidt CY - Berlin AN - OPUS4-25437 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Blees, Christian A1 - Balke, Christian A1 - Otremba, Frank T1 - Plattenbrandprüfungen mit reaktiven Brandschutzbeschichtungen für Gastanks - Ein Vergleich zwischen Kleinprüfstand und 1-m³-Ofen N2 - In der Vergangenheit führte die Bundesanstalt für Materialforschung und -prüfung (BAM) zahlreiche Tankbrandversuche mit und ohne Sicherheitseinrichtungen durch. Dabei stellte sich heraus, dass Gastanks mit nicht ausreichend dimensionierten Sicherheitseinrichtungen bei einer äußeren thermischen Belastung innerhalb von 6 bis 10 min in Form eines BLEVE (Boiling Liquid Expanding Vapour Explosion) versagen können. Um die Feuerwiderstandsdauer eines Tanks zu erhöhen, besteht die Möglichkeit, den Tank u. a. mit einer sog. reaktiven Brandschutzbeschichtung zu versehen. Bei einer Temperatureinwirkung ab ca. 200 °C (produktabhängig) beginnt die Schicht aufgrund einer thermochemischen Reaktion aufzuschäumen. Die Tankwand wird dabei temporär vor einer weiteren schnellen Erwärmung geschützt. PY - 2012 SN - 2191-0073 VL - 2 IS - 1/2 SP - 27 EP - 30 PB - Springer-VDI-Verl. CY - Düsseldorf AN - OPUS4-25438 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Otremba, Frank T1 - Gashochdruckleitungen T2 - Ruhrgas Meeting Gashochdruckleitungen CY - Essen, Germany DA - 2012-01-25 PY - 2012 AN - OPUS4-25415 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Thöns, Sebastian T1 - Überwachungsverfahren und Tragwerkszuverlässigkeit T2 - Lehrveranstaltung der BTU Cottbus CY - Berlin, Germany DA - 2012-01-12 PY - 2012 AN - OPUS4-25416 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Geburtig, Anja A1 - Goedecke, Thomas A1 - Wachtendorf, Volker T1 - Combined impact of ultraviolet and chemical fluids on high-density polyethylene packaging material N2 - To investigate the ageing behaviour of filled plastic containers outdoors, square cuts of the wall of two high-density polyethylene (HDPE) types were exposed to ultraviolet (UV) radiation at their front side and to specific liquid chemicals (de-ionized water, surfactant or White Spirit) at their back. The UV radiant exposure at the front side was 80 MJ/m². To compare the actions of the different exposures, separate dark backside fluid exposures were performed, in parallel. Besides, UV weathering was carried out until a UV radiant exposure of 325 MJ/m², being roughly comparable to outdoor exposure of one year in Northern Australia. An unpigmented HDPE included in the investigation gave no sufficient protection for the White Spirit. In addition, it showed clear degradation after several of these exposures. In combination with the White Spirit, an increase of carbonyl bonds was measured, presumably assignable to degradation products of the White Spirit. For a pigmented HDPE material, with the implemented combined exposures, no relevant damage was observed, within applied the exposure period. KW - Weathering KW - UV KW - HDPE KW - Packaging PY - 2012 U6 - https://doi.org/10.1002/pts.959 SN - 0894-3214 VL - 25 IS - 1 SP - 53 EP - 61 PB - Wiley CY - Chichester, UK AN - OPUS4-25417 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Schälike, Stefan A1 - Wehrstedt, Klaus-Dieter A1 - Gawlowski, M. A1 - Schönbucher, A. T1 - Validation of submodels for CFD simulation of n-hexane pool flames including interferometry N2 - Computational fluid dynamics (CFD) simulation is used to predict transient and time-averaged glame temperatures and species concentrations of an n-hexane pool flame. Employing a combination of an assumed probability density function approach with laminar flamelets using detailed kinetic data and large-eddy simulation with Smagorinsky submodel is shown to be a promising way in modeling pool and tank fires. The measured species concentration and flame temperature profiles from gas chromatography, thermocouple measurements and holographic interferometry are used to validate the submodels for CFD simulation of pool flames. KW - Computational fluid dynamics (CFD) KW - Interferometry KW - Large eddy simulation (LES) KW - Non-premixed flame KW - Pool fire PY - 2012 U6 - https://doi.org/10.1002/cite.201100179 SN - 0009-286X SN - 1522-2640 VL - 84 IS - 4 SP - 484 EP - 490 PB - Wiley-VCH Verl. CY - Weinheim AN - OPUS4-25418 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Koshkina, Olga A1 - Lang, Thomas A1 - Bantz, C. A1 - Maskos, M. T1 - Synthesis and Characterization of Siloxane-Based Nanoparticles for Biomedical Applications T2 - First Reporting Colloquium of DFG SPP1313-2 "Bio-Nano-Responses" CY - Fulda, Germany DA - 2012-02-20 PY - 2012 AN - OPUS4-25471 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Yin, Huajie A1 - Napolitano, S. A1 - Schönhals, Andreas T1 - Molecular mobility and glass transition of thin films of poly(bisphenol A carbonate) N2 - Glass transition behavior of thin poly(bisphenol A carbonate) (PBAC) films capped between two aluminum (Al) layers is investigated by means of dielectric expansion dilatometry and dielectric relaxation spectroscopy accompanied by contact angle measurements. The thermal glass transition temperature is more or less independent of the film thickness down to 20 nm. For thickness below 20 nm, an increase of Tg is observed. Meanwhile, an increase of the relaxation time at a fixed temperature is observed for the film with the thickness of 19 nm on the basis of a careful analysis of the temperature dependence of the relaxation rates. A more detailed analysis of the relaxation map reveals that the Vogel temperature increases and the fragility decreases systematically with decreasing film thickness. These properties are discussed in terms of the formation of a boundary layer with PBAC segments adsorbed onto the Al electrode due to the strong interaction between the Al and PBAC layers (2.51 mJ/m²), which results in a reduced molecular mobility with regard to bulk PBAC behavior. As the dielectric strength is proportional to the number of segments fluctuating on the time and length scale of the dynamic glass transition, it is used as a unique probe of the deviations from bulk behavior. The temperature dependence of the penetration depth of the interfacial interactions on the structural relaxation is further quantitatively determined. The dynamic length scale of the perturbations into the chain conformations responsible for the deviation from bulk behavior is estimated to be smaller than 9 nm. PY - 2012 U6 - https://doi.org/10.1021/ma202127p SN - 0024-9297 SN - 1520-5835 VL - 45 IS - 3 SP - 1652 EP - 1662 PB - American Chemical Society CY - Washington, DC AN - OPUS4-25472 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Reisgen, U. A1 - Schleser, M. A1 - Abdurakhmanov, A. A1 - Gumenyuk, Andrey T1 - Measuring of plasma properties induced by non-vacuum electron beam welding N2 - Electron beam plasma measurement was realised by means of DIABEAM system invented by ISF RWTH Aachen. The Langmuir probe method is used for measurement. The relative simplicity of the method and the possibility of dispersion of high power on the probe allow its application for the investigation of high-power electron beams. The key element of the method is a rotating thin tungsten wire, which intersects the beam transversely on its axis and collects part of the current by itself. The signals, which are registered in the DIABEAM as a voltage, were taken in the form of amplitude. The conversion of the probe current into the distribution along the beam radius was realised using the Abel's method. A voltage-current characteristic was built for the beam current. The local electron density as well as the electron temperature, the floating potential and the plasma potential were measured and calculated by means of this characteristic. KW - Plasma KW - Diagnostic KW - Welding PY - 2012 U6 - https://doi.org/10.1063/1.3675874 SN - 1070-664X VL - 19 SP - 0131006-1 - 0131006-7 PB - American Institute of Physics CY - Melville, NY, USA AN - OPUS4-25474 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Hübner, S. A1 - Kressirer, S. A1 - Kralisch, D. A1 - Bludszuweit-Philipp, C. A1 - Lukow, K. A1 - Jänich, I. A1 - Schilling, A. A1 - Hieronymus, Hartmut A1 - Liebner, Christian A1 - Jähnisch, K. T1 - Ultrasound and microstructures - a promising combination? N2 - Short diffusion paths and high specific interfacial areas in microstructured devices can increase mass transfer rates and thus accelerate multiphase reactions. This effect can be intensified by the application of ultrasound. Herein, we report on the design and testing of a novel versatile setup for a continuous ultrasound-supported multiphase process in microstructured devices on a preparative scale. The ultrasonic energy is introduced indirectly into the microstructured device through pressurized water as transfer medium. First, we monitored the influence of ultrasound on the slug flow of a liquid/liquid two-phase system in a channel with a high-speed camera. To quantify the influence of ultrasound, the hydrolysis of p-nitrophenyl acetate was utilized as a model reaction. Microstructured devices with varying channel diameter, shape, and material were applied with and without ultrasonication at flow rates in the mL min-1 range. The continuous procedures were then compared and evaluated by performing a simplified life cycle assessment. KW - Biphasic reactions KW - Hydrolysis KW - Interfaces KW - Liquids KW - Ultrasound PY - 2012 U6 - https://doi.org/10.1002/cssc.201100369 SN - 1864-5631 SN - 1864-564X VL - 5 IS - 2 SP - 279 EP - 288 PB - Wiley-VCH CY - Weinheim AN - OPUS4-25476 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Wiggenhauser, Herbert T1 - ZfP im Bauwesen oder Wo ist der Fortschritt? T2 - Kolloquium für Gerd Dobmann, FhG IZFP Saarbrücken CY - Saarbrücken, Germany DA - 2012-02-14 PY - 2012 AN - OPUS4-25480 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Behnke, Thomas A1 - Würth, Christian A1 - Laux, Eva-Maria A1 - Hoffmann, Katrin A1 - Resch-Genger, Ute T1 - Simple strategies towards bright polymer particles via one-step staining procedures N2 - In order to develop simple and versatile procedures for the preparation of red emissive particles, various one-step swelling procedures for the loading of fluorophores into nanometer- and micrometer-sized polystyrene particles were systematically assessed. Parameters studied for model dyes from common dye classes include the composition of the swelling medium, dye charge and polarity, dye concentration, and particle surface chemistry. The dye loading procedures were compared based upon the efficiency of dye incorporation, fluorescence intensity, and colloidal stability of the resulting particles as well as the absence of dye leaking as determined by absorption and fluorescence spectroscopy, flow cytometry, and measurements of zeta potentials. In addition, for the first time, the influence of the amount of incorporated dye on the absolute fluorescence quantum yield and brightness of the fluorescent particles was investigated for selected chromophores in differently sized particles using a custom-made calibrated integrating sphere setup. Our results demonstrate the general suitability of these one-step loading procedures for efficient particle staining with neutral, zwitterionic, and charged fluorophores like oxazines, coumarines, squaraines, xanthenes, and cyanines emitting in the visible and near infrared. Dye polarity was identified as a suitable tool to estimate the loading efficiency of fluorophores into these polymer particles. KW - Fluorescence KW - Polystyrene KW - Particles KW - Encapsulation KW - Quantum yield KW - Zeta potential KW - Method KW - Label KW - Particle KW - Polymer KW - Absolute fluorescence quantum yield KW - Fluorophore KW - Dye content KW - Surface groups KW - Size KW - Brightness PY - 2012 U6 - https://doi.org/10.1016/j.dyepig.2012.01.021 SN - 0143-7208 SN - 1873-3743 VL - 94 IS - 2 SP - 247 EP - 257 PB - Elsevier Ltd. CY - Kidlington AN - OPUS4-25481 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Wloka, Monika T1 - Einführung in Zielsetzung, Ablauf des Verfahrens der Novellierung und Überblick über die Änderung der DIN EN ISO 19011:2002 T2 - Informationsveranstaltung Beuth/DQS CY - Stuttgart, Germany DA - 2012-01-25 PY - 2012 AN - OPUS4-25482 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Meyer-Plath, Asmus A1 - Helbig, J. A1 - Zenkel, C. A1 - Kujat, C. A1 - Lommatzsch, U. A1 - Jost, O. A1 - Abetz, V. A1 - Teipel, U. A1 - Wirth, K.-E. T1 - Funktionalisieren von CNT - eine Übersicht über die neuen Möglichkeiten T2 - 4. Jahrestagung inno.CNT CY - Bayreuth, Germany DA - 2012-01-30 PY - 2012 AN - OPUS4-25484 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Meyer-Plath, Asmus A1 - Roch, A. A1 - Roch-Talens, E. A1 - Lehmann, B. A1 - Greifzu, M. A1 - Zenkel, C. A1 - Jost, O. A1 - Leson, A. A1 - Beyer, E. T1 - Änderung der elektronischen Eigenschaften von Kohlenstoffnanoröhren durch Funktionalisierung T2 - 4. Jahrestagung inno.CNT CY - Bayreuth, Germany DA - 2012-01-30 PY - 2012 AN - OPUS4-25485 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Schukar, Vivien A1 - Kusche, Nadine A1 - Habel, Wolfgang T1 - How reliably do fiber Bragg grating patches perform as strain sensors? N2 - In Germany, the first guideline for the use of fiber Bragg grating strain sensors, 'Optical Strain Sensor based on Fiber Bragg Grating' (Berlin, Germany: Beuth-Verlag, 2010), has been developed by the GESA guideline group of VDI, 'The Association of German Engineers' and published by Beuth-Verlag. This guideline provides the basic specifications of this sensor type and the sensor characteristics, which have to be known for a reliable sensor performance. In conformity to this guideline, experimental investigations on the strain transfer characteristics of fiber Bragg grating patches have been carried out. A comparison between patches and resistance strain gauges during tensile tests and combined temperature and tensile loading was carried out. The evaluated strain gauge factor and the temperature sensitivity of the strain gauge factor have been compared to the manufacturer's data. The overall performance of the patches has been evaluated. The experimental investigations showed that there are considerable disagreements between the manufacturer's specifications and the observed characteristics. KW - Fiber Bragg grating KW - Strain gauge KW - Strain transfer KW - Validation PY - 2012 U6 - https://doi.org/10.1109/JSEN.2011.2139202 SN - 1530-437X SN - 1558-1748 VL - 12 IS - 1 SP - 128 EP - 132 CY - New York, NY, USA AN - OPUS4-25486 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Taffe, Alexander A1 - Goldschmidt, Sebastian A1 - Kind, Thomas A1 - Zoëga, Andreas A1 - Ebsen, B. A1 - Schaab, A. T1 - Anwendung von Verfahren zur Bewehrungsortung und Betondeckungsmessung in Theorie und Praxis T2 - Fachtagung Bauwerksdiagnose 2012, Praktische Anwendungen Zerstörungsfreier Prüfungen und Zukunftsaufgaben CY - Berlin, Germany DA - 2012-02-23 PY - 2012 AN - OPUS4-25487 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Taffe, Alexander A1 - Spies, M. A1 - Recknagel, J. T1 - Schulung zur zuverlässigen Ortung von Bewehrung in Stahlbetonbauteilen von Kraftwerken T2 - Fachtagung Bauwerksdiagnose 2012, Praktische Anwendungen Zerstörungsfreier Prüfungen und Zukunftsaufgaben CY - Berlin, Germany DA - 2012-02-23 PY - 2012 AN - OPUS4-25488 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Rauchegger, Christian A1 - Schalau, Bernd A1 - Schmidt, Dirk A1 - Thévenin, Dominique T1 - Experimentelle und theoretische Untersuchungen zur Schwergasfreisetzung und -ausbreitung T2 - AGS Arbeitsgemeinschaft Schadensverhütung Berlin Brandenburg - 562. Sitzung CY - Berlin, Germany DA - 2012-01-17 PY - 2012 AN - OPUS4-25489 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Wawrzyn, Eliza A1 - Schartel, Bernhard A1 - Seefeldt, Henrik A1 - Karrasch, A1 - Jäger, Christian T1 - What reacts with what in bisphenol A polycarbonate/silicon rubber/bisphenol A bis(diphenyl phosphate) during pyrolysis and fire behavior? N2 - The pyrolysis and flame retardancy of a bisphenol A polycarbonate/silicon rubber/bisphenol A bis(diphenyl phosphate) (PC/SiR/BDP) blend were investigated and compared to those of PC/BDP and PC/SiR. The impact modifier SiR consists mainly of poly(dimethylsiloxane) (PDMS > 80 wt %). The pyrolysis of PC/SiR/BDP was studied by thermogravimetry (TG), TG–FTIR to analyze the evolved gases, and a Linkam hot stage cell within FTIR as well as 29Si NMR and 31P NMR to analyze the solid residue. The fire performance was determined by PCFC, LOI, UL 94, and a cone calorimeter under different external irradiations. The fire residues were studied by using ATR-FTIR as well as the additional binary systems PC + PDMS, PC + BDP, and BDP + PDMS, focusing on the specific chemical interactions. The decomposition pathways are revealed, focusing on the competing interaction between the components. Fire retardancy in PC/SiR/BDP is caused by both flame inhibition in the gas phase and inorganic-carbonaceous residue formation in the condensed phase. The PC/SiR/BDP does not work as well superimposing the PC/SiR and PC/BDP performances. PDMS reacts with PC and BDP, decreasing BDP's mode of action. Nevertheless, the flammability (LOI > 37%, UL 94 V-0) of PC/SiR/BDP equals the high level of PC/BDP. Indeed, SiR in PC/SiR/BDP is underlined as a promising impact modifier in flame-retarded PC/impact modifier blends as an alternative to highly flammable impact modifiers such as acrylonitrile–butadiene–styrene (ABS), taking into account that the chosen SiR leads to PC blends with a similar mechanical performance. KW - PC KW - BDP KW - PDMS KW - Flame retardancy KW - Flammability KW - Decomposition KW - Pyrolysis PY - 2012 U6 - https://doi.org/10.1021/ie201908s SN - 0888-5885 SN - 1520-5045 VL - 51 IS - 3 SP - 1244 EP - 1255 PB - American Chemical Society CY - Washington, DC AN - OPUS4-25460 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Enthaler, S. A1 - Krackl, S. A1 - Epping, J.D. A1 - Eckhardt, B. A1 - Weidner, Steffen A1 - Fischer, A. T1 - Iron-based pre-catalyst supported on polyformamidine for C-C bond formation N2 - In the present study the incorporation of iron into an organic polymer, composed of formamidine subunits [R–N=C(H)–NH–R], has been examined. The catalytic ability of the recyclable material was investigated in the iron-catalyzed formation of C–C bonds. After optimization of the reaction conditions, excellent yields and chemoselectivities were feasible. KW - Polyforamidine KW - Synthesis KW - Catalytic ability PY - 2012 U6 - https://doi.org/10.1039/c2py00540a SN - 1759-9954 SN - 1759-9962 VL - 3 IS - 3 SP - 751 EP - 756 AN - OPUS4-25461 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Müller, Werner A1 - Wöhlecke, Andreas ED - Jost, D. ED - Albers, K. T1 - Stand der Zulassungen für Geokunststoffe nach der novellierten Deponieverordnung T2 - 28. Fachtagung - Die sichere Deponie - Sicherung von Deponien und Altlasten mit Kunststoffen CY - Würzburg, Deutschland DA - 2012-02-09 KW - Deponieverordnung KW - BAM-Zulassung KW - Geokunststoffe KW - Kunststoff-Dränelemente KW - Geotextile Filter PY - 2012 IS - Kap. B SP - 1 EP - 22 CY - Würzburg AN - OPUS4-25462 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Lange, T. A1 - Heinrich, Sebastian A1 - Liebner, Christian A1 - Hieronymus, Hartmut A1 - Klemm, E. T1 - Reaction engineering investigations of the heterogeneously catalyzed partial oxidation of o-xylene in the explosion regime using a microfixed bed reactor N2 - The heterogeneously catalyzed selective gas phase oxidation of o-xylene was investigated, using a microstructured fixed bed reactor, inside of the explosion regime. The reaction was carried out with high amounts of o-xylene in air and stoichiometric with oxygen using a V2O5/TiO2-catalyst prepared through grafting. There were no significant losses in the selectivity to phthalic anhydride observable, during the measurements in the explosion regime, with feed compositions of up to 7 vol% o-xylene. Also the space-time yield was up to 2.3 times higher in comparison to conventional reaction conditions. An increase of the selectivity to total oxidation products was observed at higher o-xylene concentrations between 10 and 25 vol% o-xylene, which possibly was caused by the formation of a hotspot. The investigation of the used catalyst revealed a thermally induced deactivation due to phase transition of anatase into rutil and formation of crystalline vanadium oxide. Despite that expected hotspot at high oxylene concentrations, there was no ignition or explosion of the gas mixture observable. KW - O-xylene oxidation KW - Phthalic anhydride KW - V2O5/TiO2-catalyst KW - Microfixed bed reactor KW - Explosion regime KW - Hotspot PY - 2012 U6 - https://doi.org/10.1016/j.ces.2011.10.072 SN - 0009-2509 VL - 69 IS - 1 SP - 440 EP - 448 PB - Elsevier CY - Amsterdam AN - OPUS4-25463 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Schmid, C. A1 - Weidner, Steffen A1 - Falkenhagen, Jana A1 - Barner-Kowollik, C. T1 - In-depth LCCC-(GELC)-SEC characterization of ABA block copolymers generated by a mechanistic switch from RAFT to ROP N2 - A recently introduced procedure involving a mechanistic switch from reversible addition–fragmentation chain transfer (RAFT) polymerization to ring-opening polymerization (ROP) to form diblock copolymers is applied to synthesize ABA (star) block copolymers. The synthetic steps include the polymerization of styrene with R-group designed RAFT agents, the transformation of the thiocarbonyl thio end groups into OH functionalities, and their subsequent chain extension by ROP. The obtained linear ABA poly(ε-caprolactone)-block-poly(styrene)-block-poly(ε-caprolactone) (pCL-b-pS-b-pCL) (12 500 g mol–1 ≤ Mn ≤ 33 000 g mol–1) and the star-shaped poly(styrene)-block-poly(ε-caprolactone) (Mn = 36 000 g mol–1) copolymers were analyzed by size exclusion chromatography (SEC), nuclear magnetic resonance (NMR), infrared (IR) spectroscopy, and matrix-assisted laser desorption/ionization (MALDI) mass spectrometry. The focus of the current study is on the detailed characterization of the ABA (star) block polymers via multidimensional chromatographic techniques specifically high performance liquid chromatography coupled to size exclusion chromatography (HPLC-SEC). In particular, we demonstrate the first time separation of poly(ε-caprolactone) (pCL) homopolymer and additionally poly(styrene) (pS) from the ABA poly(ε-caprolactone)-b-poly(styrene)-b-poly(ε-caprolactone) and star-shaped poly(styrene)-b-poly(ε-caprolactone) block copolymer utilizing critical conditions (CC) for pCL with concomitant gradient elution liquid chromatography (GELC). KW - Two-dimensional-liquid chromatography (2D-LC) KW - Liquid chromatography under critical conditions (LCCC) KW - Gradient elution liquid chromatography (GELC) KW - Soft ionization mass spectrometry (ESI, MALDI) KW - Reversible addition fragmentation chain transfer (RAFT) KW - Ring opening polymerization (ROP) PY - 2012 U6 - https://doi.org/10.1021/ma2022452 SN - 0024-9297 SN - 1520-5835 VL - 45 IS - 1 SP - 87 EP - 99 PB - American Chemical Society CY - Washington, DC AN - OPUS4-25464 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Bier, A.K. A1 - Bognitzki, M. A1 - Schmidt, A. A1 - Greiner, A. A1 - Gallo, Emanuela A1 - Klack, Patrick A1 - Schartel, Bernhard T1 - Synthesis, properties, and processing of new siloxane-substituted poly(p-xylylene) via CVD N2 - The synthesis of a disiloxane-functionalized [2.2]paracyclophane and its polymerization to the corresponding siloxane-substituted poly(p-xylylene) via chemical vapor deposition (CVD) has been described. Because of the enhanced solubility of the siloxane substituted poly(p-xylylene) analysis of the molecular structure by NMR, molecular weight, and polydispersity by gel permeation chromatography (GPC), and processing by film casting as well as nanofiber formation by electrospinning was possible. Structural isomers were found by NMR which was expected due to the isomeric mixture of the precursor. High molecular weights at moderate polydispersities were found by GPC which was unexpected for a vapor phase deposition polymerization. The amorphous morphology in combination with a low glass transition temperature led to high elongation at break for the siloxane substituted poly(p-xylylene). Significant difference for the wetting versus water was found for as-deposited films, solution cast films, and nanofibers obtained by electrospinning with contact angles up to 135° close to superhydrophobic behavior. KW - Poly(p-xylylene) KW - Siloxane functionalized PPX KW - Chemical vapor deposition KW - Difunctionalized [2.2]paracyclophanes KW - Gorham process PY - 2012 U6 - https://doi.org/10.1021/ma2021369 SN - 0024-9297 SN - 1520-5835 VL - 45 IS - 2 SP - 633 EP - 639 PB - American Chemical Society CY - Washington, DC AN - OPUS4-25466 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Wachtendorf, Volker A1 - Schulz, Ulrich A1 - Geburtig, Anja A1 - Stephan, Ina T1 - Mildew growth on automotive coatings influencing the results of outdoor weathering N2 - As the results of a 14 weeks outdoor exposure of a series of automotive coatings in South Florida, the panels were found to be overgrown with an almost closed layer of mildew. Pinholes remained as permanent surface damage after removing the mildew mycelium. The extent of the damage differed in dependence of the kind of the coating. By tracing the images and profiles of the coating surfaces systematically over all phases of weathering and the subsequent cleaning procedure, a connection between formation of pinholes and mildew growth could be found. Outdoor weathering tests in other regions of Florida as well as in Europe and Australia showed that pinholes caused by mildew attack could also be found in all other locations, but always to a lower extent than in South Florida. The standardised mildew tests EN ISO 846 and MIL-STD 810F for laboratory exposure failed to reproduce the formation of pinholes. KW - Coatings KW - Mildew KW - Weathering KW - South Florida PY - 2012 U6 - https://doi.org/10.1002/maco.201005784 SN - 0947-5117 SN - 1521-4176 VL - 63 IS - 2 SP - 140 EP - 147 PB - Wiley-VCH Verl. CY - Weinheim AN - OPUS4-25467 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Lueck, S. A1 - Kupsch, Andreas A1 - Lange, Axel A1 - Hentschel, Manfred P. A1 - Schmidt, V. T1 - Statistical comparison of various reconstruction algorithms with respect to missing wedge artifacts in computed tomography N2 - The presence of elongation, streak and blurring artifacts in tomograms recorded under a missing wedge of rotation angles presents a major challenge for the quantitative analysis of tomographic image data. We show that the missing wedge artifacts of standard reconstruction algorithms may be reduced by the innovative reconstruction technique DIRECTT. For the comparison of missing wedge artifacts we apply techniques from spatial statistics, which have been specifically designed to investigate the shape of phase boundaries in tomograms. KW - X-ray tomography KW - Scanning transmission electron microscopy (STEM) KW - Structural PY - 2012 U6 - https://doi.org/10.1557/opl.2012.209 SN - 0272-9172 VL - 1421 SP - 1 EP - 6 PB - North-Holland Publ. Co. CY - New York, NY AN - OPUS4-25468 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Österle, Werner A1 - Dmitriev, A.I. A1 - Kloß, Heinz T1 - Possible impacts of third body nanostructure on friction performance during dry sliding determined by computer simulation based on the method of movable cellular automata N2 - The tribological properties of nanostructured surface films formed during dry sliding, for example during automotive braking, were determined by modelling using the method of movable cellular automata. Starting from a basic model structure, consisting of magnetite with 13% graphite inclusions, the impact of additional soft and hard particles of different size and volume fraction was studied systematically. It was revealed that agglomerates of soft particles decomposed and finally mixed with the oxide in the same way as single nanoparticles. On the other hand, agglomerates of hard particles mixed with the other components without decomposing. Whereas increasing the amount of soft components in the third body lowered the coefficient of friction, the opposite occurred with the hard particles. The boundary conditions for obtaining smooth sliding conditions with minor fluctuations between friction forces at successive time steps could be defined. In addition to features of the nanostructure, the applied normal pressure impacted modelling results. Within the parameter range of smooth sliding behaviour, increasing pressure induced thicker granular interface layers, which lead to a slight decrease of the coefficient of friction. Changing the amount of soft or hard particles did not change this pressure dependency but only the friction level. KW - MCA-modelling KW - Third body KW - Nanoparticles KW - Dry friction PY - 2012 U6 - https://doi.org/10.1016/j.triboint.2011.11.018 SN - 0301-679X VL - 48 SP - 128 EP - 136 PB - Butterworth-Heinemann CY - Oxford AN - OPUS4-25469 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Ramge, Peter A1 - Kühne, Hans-Carsten T1 - Entwicklung und Modifikation von PCC und SPCC Mörteln für die Betoninstandsetzung - Besonderheiten bei der Verbundkörperprüfung T2 - Spritzbeton-Tagung 2012 CY - Alpbach, Austria DA - 2012-01-12 PY - 2012 AN - OPUS4-25350 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Ueckerdt, Christiane A1 - Plarre, Rüdiger A1 - Hertel, Horst T1 - Attraktivität unterschiedlicher Bauholzqualitäten auf männliche Hausbockkäfer Hylotrupes bajulus (L.) (Coleoptera: Cerambycidae) KW - Hausbockkäfer KW - Orientierungsverhalten KW - Insektenresistente Bauholzqualität PY - 2012 SN - 0018-3881 VL - 53 IS - 1 SP - 18 EP - 23 PB - DRW-Verl. Weinbrenner CY - Leinfelden-Echterdingen AN - OPUS4-25352 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF ED - Bièth, M. ED - Selby, G. ED - Miya, K. ED - Dobmann, G. ED - Whittle, J. ED - Erhard, Anton T1 - Proceedings of the eighth international conference on NDE in relation to structural integrity for nuclear and pressurised components, September 29 - October 1, 2010, Berlin, Germany N2 - This conference, the eighth in a series on NDE in relation to structural integrity for nuclear and pressurized components, was held from 29 September to 1 October 2010, in Berlin, Germany. The scientific programme was co-produced by the European Commission’s Joint Research Centre, Institute for Energy (EC-JRC/IE), the conference co-organiser. It was locally organised by DGZfP, the German Society for Non-Destructive Testing. The first conference, under the sole responsibility of EC-JRC was held in Amsterdam, 20-22 October 1998. The second conference was locally organized by the EPRI NDE Center in New Orleans, 24-26 May 2000, the third one by Tecnatom in Seville, 14-16 November 2001, the fourth one by the British Institute of Non-DestructiveTesting in London, 6-8 December 2004, the fifth by EPRI in San Diego, 10-12 May 2006, the sixth by Marovisz in Budapest, 8-10 October 2007 and the seventh by the University of Tokyo and JAPEIC in Yokohama. The theme of this conference series is to provide the link between the information originated by NDE and the use made of this information in assessing structural integrity. In this context, there is often a need to determine NDE performance against structural integrity requirements through a process of qualification or performance demonstration. There is also a need to develop NDE to address shortcomings revealed by such performance demonstration or otherwise. Finally, the links between NDE and structural integrity require strengthening inmany areas so that NDE is focussed on the components at greatest risk and provides the precise information required for assessment of integrity. These were the issues addressed by the papers selected for the conference. T2 - 8th International conference on NDE in relation to structural integrity for nuclear and pressurised components CY - Berlin, Germany DA - 2010-09-29 PY - 2012 SN - 978-92-79-20321-3 U6 - https://doi.org/10.2790/31462 SN - 1018-5593 IS - JRC 64886 SP - 1 EP - 1069 PB - Publications office of the European Union CY - Luxembourg AN - OPUS4-25353 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Seefeldt, Henrik A1 - Braun, Ulrike T1 - Burning behavior of wood-plastic composite decking boards in end-use conditions: the effects of geometry, material composition, and moisture N2 - In this study, we investigated the basic knowledge necessary to develop flame-retarded wood–plastic composite (WPC) materials by focusing on decking boards. Therefore, the respective effects of geometry, material composition, and moisture were studied by performing cone calorimetric measurements. Using hollow-shaped geometries removes combustible material and reduces the fire load but simultaneously increases fire propagation. The best results were achieved by using high-wood contents. The addition of talc can reduce the intensity of burning. Moisture also has a positive effect on burning behavior. Apart from the well-known mechanism of water, a change was observed in the resultant residue. KW - WPC KW - Wood-plastic composite KW - Cone calorimeter KW - Decking boards PY - 2012 U6 - https://doi.org/10.1177/0734904111423488 SN - 0734-9041 SN - 1530-8049 VL - 30 IS - 1 SP - 41 EP - 54 PB - Sage CY - London AN - OPUS4-25357 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Wu, Guang Mei A1 - Schartel, Bernhard A1 - Yu, D. A1 - Kleemeier, M. A1 - Hartwig, A. T1 - Synergistic fire retardancy in layered-silicate nanocomposite combined with low-melting phenysiloxane glass N2 - Tetraphenyl phosphonium-modified layered silicate (LS) and low-melting phenylsiloxane glass (G) are combined for more efficient halogen-free flame retardancy in epoxy resin (EP_LSG). Particularly, the peak heat release rate (PHRR) is decreased (by up to 60%), but levels off at additive concentrations ≥10 wt%. The performance of EP_LSG is compared to EP_LS and EP_G assuming an absolute and a relative flame retardancy effect, respectively, and based on the same amount of each filler and, alternatively, with EP_G containing the same overall amount of filler. EP_LSG behaves close to superposition but shows a strong tendency toward synergism due to a superior structural integrity of the fire residues. Apart from LS, adding G in particular is a promising approach when its content is ≤5 wt%, as is LSG for ≥10 wt%. KW - Low-melting glass KW - Layered silicate KW - Flame retardancy KW - Nanocomposites KW - Epoxy resin PY - 2012 U6 - https://doi.org/10.1177/0734904111422417 SN - 0734-9041 SN - 1530-8049 VL - 30 IS - 1 SP - 69 EP - 87 PB - Sage CY - London AN - OPUS4-25359 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Merkel, Stefan A1 - Köppen, Robert A1 - Koch, Matthias A1 - Emmerling, Franziska A1 - Nehls, Irene T1 - Lysergol monohydrate N2 - In the title compound [systematic name: (7-methyl-4,6,6a,7,8,9-hexahydroindolo[4,3,2-fg]quinoline-9-yl)methanol monohydrate], C16H18N2O·H2O, the non-aromatic ring (ring C of the ergoline skeleton) directly fused to the aromatic rings is nearly planar, with a maximum deviation of 0.659 (3) Å, and shows an envelope conformation. In the crystal, hydrogen bonds between the lysergol and water molecules contribute to the formation of layers parallel to (10-2). PY - 2012 U6 - https://doi.org/10.1107/S1600536812002632 SN - 1600-5368 VL - 68 IS - 2 SP - o523, sup1 EP - sup8 PB - Munksgaard CY - Copenhagen AN - OPUS4-25401 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Banach, Ulrich A1 - Tiebe, Carlo A1 - Hübert, Thomas T1 - Multigas sensors for the quality control of spice mixtures N2 - Spices have an important impact on daily aliment. Changes of their quality resulting in far reaching consequences in different foodstuffs and imply financial losing and even health hazard. In this study it is demonstrated that application of two different portable multi gas sensors (electronic nose and ion mobility spectrometer) supported by multivariate data analysis can contribute to ensure quality control of spice mixtures and to find out product adulteration. Headspace above spice mixtures for sausages and saveloy and product counterfeitings was investigated by a metal oxide based electronic nose (e-nose of KAMINA-type). Linear discriminant analysis (LDA) of sensor resistivity data was performed for differentiation. Simultaneously an ion mobility spectrometer (IMS) was coupled to the emission chamber for detection of gaseous components above spice mixtures. The measured spectra show differences between the two spice mixtures and were discussed using a principal component analysis (PCA). The two multigas sensors permit discrimination between the types of spice mixtures and can indicate product adulteration. Additionally, a headspace gas analysis by gas chromatography was performed to identify the main volatile components and to prove the chemical basis for the observed differences of the multi gas sensors. KW - Spice mixtures KW - Product adulteration KW - Electronic nose KW - Ion mobility spectrometer KW - Gas chromatography KW - Multivariate data analysis PY - 2012 U6 - https://doi.org/10.1016/j.foodcont.2012.01.015 SN - 0956-7135 VL - 26 IS - 1 SP - 23 EP - 27 PB - Elsevier Ltd. CY - Amsterdam AN - OPUS4-25402 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Guljamow, A. A1 - Delißen, Friedmar A1 - Baumann, O. A1 - Thünemann, Andreas A1 - Dittmann, E. T1 - Unique properties of eukaryote-type actin and profilin horizontally transferred to cyanobacteria N2 - A eukaryote-type actin and its binding protein profilin encoded on a genomic island in the cyanobacterium Microcystis aeruginosa PCC 7806 co-localize to form a hollow, spherical enclosure occupying a considerable intracellular space as shown by in vivo fluorescence microscopy. Biochemical and biophysical characterization reveals key differences between these proteins and their eukaryotic homologs. Small-angle X-ray scattering shows that the actin assembles into elongated, filamentous polymers which can be visualized microscopically with fluorescent phalloidin. Whereas rabbit actin forms thin cylindrical filaments about 100 µm in length, cyanobacterial actin polymers resemble a ribbon, arrest polymerization at 5-10 µm and tend to form irregular multi-strand assemblies. While eukaryotic profilin is a specific actin monomer binding protein, cyanobacterial profilin shows the unprecedented property of decorating actin filaments. Electron micrographs show that cyanobacterial profilin stimulates actin filament bundling and stabilizes their lateral alignment into heteropolymeric sheets from which the observed hollow enclosure may be formed. We hypothesize that adaptation to the confined space of a bacterial cell devoid of binding proteins usually regulating actin polymerization in eukaryotes has driven the co-evolution of cyanobacterial actin and profilin, giving rise to an intracellular entity. PY - 2012 U6 - https://doi.org/10.1371/journal.pone.0029926 SN - 1932-6203 VL - 7 IS - 1 SP - e29926-1 - e29926-11 PB - PubMed Central AN - OPUS4-25403 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Quiroz Penaranda, Vanessa A1 - Gumenyuk, Andrey A1 - Rethmeier, Michael T1 - Laser beam weldability of high-manganese austenitic and duplex stainless steel sheets N2 - Manganese alloyed stainless steels represent a cost-effective alternative to conventional CrNi- stainless steels due to strong fluctuations of the market prices for nickel seen during the last years. In CrMnNi steels, nickel is partially replaced by lower-cost manganese and small amounts of nitrogen for stabilization of the austenitic phase. This also brings benefits regarding the mechanical properties, as it results in an increased material strength. Laser beam welding of such materials was investigated for direct comparison with standard CrNi steels. Main emphasis was laid on finding adequate process parameters to achieve a stable welding process and obtain a good weld quality. Two different laser sources, a 4.4 kW Nd:YAG and a 5 kW CO2 laser, were used to weld 1.5 mm stainless steel sheets in continuous wave mode. A high-Mn austenitic (1.4376) and a lean duplex (1.4162) steel, as well as the standard austenitic (1.4301) and duplex (1.4362) grades were selected as test materials. Both butt and lap joint configurations were studied. Experiments were carried out systematically, varying the welding speed, laser power and focal point position in order to determine adequate process windows. The influence of the shielding gas type and flow rate on the process stability and the weld quality were investigated. The effects of weld edge preparation on the weld appearance and quality levels attained were also examined. The obtained welded joints were subjected to radiographic tests for detection of internal imperfections. Also a metallurgical characterization of the samples regarding the resulting phase composition or balance and hardness depending on the welding process parameters was conducted. Furthermore, tensile and potentiodynamic tests were performed to evaluate the mechanical and corrosion properties, respectively. The results provide an insight into the advantages and limitations of the laser beam welding process for joining high-manganese alloyed stainless steels. Conditions for the production of defect-free and corrosion-resistant welds having good mechanical properties could be determined. KW - Austenitic stainless steels KW - Corrosion KW - CO2 lasers KW - Duplex stainless steels KW - Laser welding KW - Manganese KW - Mechanical properties KW - Shielding gases KW - YAG lasers KW - Weldability PY - 2012 SN - 0043-2288 SN - 1878-6669 VL - 56 IS - 1/2 SP - 9 EP - 20 PB - Springer CY - Oxford AN - OPUS4-25404 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Cuéllar, Pablo A1 - Georgi, Steven A1 - Baeßler, Matthias A1 - Rücker, Werner T1 - On the quasi-static granular convective flow and sand densification around pile foundations under cyclic lateral loading N2 - The saturated sand surrounding an offshore pile foundation under quasi-static cyclic lateral load can show the physical phenomena of macromechanical densification and convective granular flow. Based on the results from physical model tests at different geometrical scales, this paper provides a certain quantification of such phenomena and discusses their causes and consequences. The progressive sand densification leads to subsidence of the soil surface and a significant stiffening of the pile behaviour. Conversely, the ratcheting convective motion of two closed cells of soil beneath the pile-head is responsible for an endless grain migration at the soil surface, the inverse grading of the convected material and a direct shear of the sand at the distinct boundary of the revolving soil domain. In this respect, and from a macromechanical perspective considering the soil as a continuum, it appears that the convecting material tends to follow gradient lines of shear stress during its ratcheting motion. Concluding the paper, the practical relevance of these phenomena and their extrapolation to other conditions are briefly discussed. KW - Offshore pile foundation KW - Cyclic loading KW - Ratcheting KW - Granular convection KW - Densification PY - 2012 U6 - https://doi.org/10.1007/s10035-011-0305-0 SN - 1434-5021 SN - 1434-7636 VL - 14 IS - 1 SP - 11 EP - 25 PB - Springer CY - Berlin ; Heidelberg AN - OPUS4-25405 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Merk, Sven A1 - Demidov, Alexandr A1 - Gornushkin, Igor B. A1 - Panne, Ulrich T1 - Tomography of Single and Double Pulse Laser Induced Plasma T2 - Anwendertreffen Plasmaspektrometrie 2012 CY - Berlin, Germany DA - 2012-02-27 PY - 2012 AN - OPUS4-25490 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - GEN A1 - Neuhaus, B. A1 - Allspach, A. A1 - Bartsch, P. A1 - Burckhardt, D. A1 - Coleman, C.O. A1 - Fries, I. A1 - Fuchs, R. A1 - Gudo, M. A1 - Kotrba, M. A1 - Mentjes, M. A1 - Moore, S. A1 - Neumann, D. A1 - Oberer, C. A1 - Potthast, A. A1 - Riedel, Juliane A1 - Rudolf, R. A1 - Schnalke, T. A1 - Schönbohm, D. A1 - Schuda, M. A1 - van Dam, A. A1 - Widulin, N. T1 - KUR-Projekt: Aufbau und öffentliche Kommunikation eines wissenschafts-basierten Sammlungsmanagements für naturkundliche Nasssammlungen N2 - Im Rahmen eines von der Kulturstiftung des Bundes und der Kulturstiftung der Länder geförderten Projektes zum Erhalt naturkundlicher Nasssammlungen wurden 1) der Zustand der Sammlungen bewertet (Profiling; Analyse der Vergällungsmittel), 2) über Workshops Expertenwissen in das Projekt gebracht, 3) neue archivbeständige Materialien und Managementmaßnahmen eingeführt (Borosilikat-Gläser und - Röhrchen, Augenwatte, Tefloneinlagen, Japanpapier, archivbeständige Kleber und Papier, Etikettenaufbewahrung; digitales Dichtemessgerät, Alcomon-Indikator, Kontrollintervalle), 4) Erhaltungsmaßnahmen zur langfristigen Konservierung in großem Umfange durchgeführt (Messen der Alkoholkonzentration, Umsetzen von Präparaten in geeignetere Gefäße, Wiederverschluss von Schaugläsern) und 5) Erfahrungen und Diskussionsergebnisse zusammengestellt, nicht ohne auf Wissenslücken und wünschenswerte Forschungsaspekte hinzuweisen. Das Projekt profitierte besonders von der Expertise aus den Materialwissenschaften und der Papierrestaurierung. Das Museum für Naturkunde Berlin kooperierte eng mit dem Berliner Medizinhistorischen Museum der Charité, der Zoologischen Staatssammlung München und dem Forschungsinstitut Senckenberg in Frankfurt. Letzteres Museum führte ein eigenes, themenverwandtes KUR-Projekt Restauration der Sammlungen 'Vergleichende Anatomie, Embryologie und Histologie' des Naturmuseums Senckenberg durch. KW - Nasssammlung KW - Ethanol KW - Vergällungsmittel PY - 2012 U6 - https://doi.org/10.5165/hawk-hhg/epublication/44 SP - 1 EP - 32 AN - OPUS4-25491 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Batzdorf, Lisa A1 - Emmerling, Franziska A1 - Panne, Ulrich T1 - Mechanochemical Synthesis of Two 2D Organometallic Structures: [Co(C2O4)(4,4'-bipy)] and [Zn3(C2O4)3(4,4'-bipy)4] T2 - 6. Interdisziplinäres Doktorandenseminar CY - Berlin, Germany DA - 2012-02-26 PY - 2012 N1 - Geburtsname von Batzdorf, Lisa: Tröbs, L. - Birth name of Batzdorf, Lisa: Tröbs, L. AN - OPUS4-25495 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Adam, Christian A1 - Suhendra, Suhendra A1 - Vogel, Christian A1 - Krüger, Oliver A1 - Tetzlaff, K. T1 - Production of marketable multi-nutrient fertilisers from different biomass ashes and industrial by-products N2 - Sewage sludge ashes (SSA) contain considerable mass fractions of phosphorus (5-10 w-% P) suitable for fertiliser production. Unfortunately, also most of the heavy metals remain in the ashes. A thermochemical process was developed for the treatment of SSA to i) remove heavy metals and ii) transform phosphates into bio-available mineral phases. The technology was already demonstrated in technical scale (capacity of 300 kg/h) and the company OUTOTEC is currently planning the first industrial plant. In order to manufacture a marketable multi-nutrient fertiliser from the thermochemically treated SSA further wastes and industrial by-products were taken into account. Ammonium sulphate occurs as a by-product of the caprolactam production and was chosen as N-carrier (21 w-% N). Straw ash was tested as potassium carrier (11-15 w-% K). Granulation campaigns were carried out with intensive mixers in lab-, medium-and technical scale. NPS-and NPKS-fertilisers were produced that were characterised by suitable particle size distributions and strength. T2 - ASH Utilisation 2012 CY - Stockholm, Sweden DA - 25.01.2012 KW - Sewage sludge ash KW - Recycling fertiliser KW - Heavy metals KW - Thermochemical treatment KW - Bioavailability PY - 2012 SP - 1 EP - 7 CY - Stockholm, Sweden AN - OPUS4-25496 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Burkert, Andreas A1 - Lehmann, Jens T1 - Alternative Edelstahlgüten zu den klassischen nichtrostenden Austeniten T2 - Praktikertagung im Metallhandwerk - Fachgerechte Auswahl und Verarbeitung von Edelstahl Rostfrei CY - Kaiserslautern, Germany DA - 2012-02-23 PY - 2012 AN - OPUS4-25497 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Burkert, Andreas A1 - Burkert, Annette A1 - Lehmann, Jens T1 - Nichtrostende Stähle - Einfluss von Legierungsgehalt, Verarbeitung und Oberflächenausführung T2 - Unternehmensführungslehrgang CY - Gengenbach, Germany DA - 2012-02-23 PY - 2012 AN - OPUS4-25498 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Hoehse, M. A1 - Paul, Andrea A1 - Gornushkin, Igor B. A1 - Panne, Ulrich T1 - Multivariate classification of pigments and inks using combined Raman spectroscopy and LIBS N2 - The authenticity of objects and artifacts is often the focus of forensic analytic chemistry. In document fraud cases, the most important objective is to determine the origin of a particular ink. Here, we introduce a new approach which utilizes the combination of two analytical methods, namely Raman spectroscopy and laser-induced breakdown spectroscopy (LIBS). The methods provide complementary information on both molecular and elemental composition of samples. The potential of this hyphenation of spectroscopic methods is demonstrated for ten blue and black ink samples on white paper. LIBS and Raman spectra from different inks were fused into a single data matrix, and the number of different groups of inks was determined through multivariate analysis, i.e., principal component analysis, soft independent modelling of class analogy, partial least-squares discriminant analysis, and support vector machine. In all cases, the results obtained with the combined LIBS and Raman spectra were found to be superior to those obtained with the individual Raman or LIBS data sets. KW - Pigments KW - Raman KW - LIBS KW - Chemometrics PY - 2012 U6 - https://doi.org/10.1007/s00216-011-5287-6 SN - 1618-2642 SN - 1618-2650 VL - 402 IS - 4 SP - 1443 EP - 1450 PB - Springer CY - Berlin AN - OPUS4-25440 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Ramin, Steffen A1 - Weller, Michael G. T1 - Extremely sensitive and selective antibodies against the explosive 2,4,6-trinitrotoluene by rational design of a structurally optimized hapten N2 - Antibodies are a promising tool for the fast and selective trace detection of explosives. Unfortunately, the production of high-quality antibodies is not trivial and often expensive. Therefore, excellent antibodies are a rare and limiting resource in fields such as biosensing, environmental analysis, diagnostics, cancer therapy, and proteomics. Here, we report the synthesis, bioconjugation, and application of the structurally optimized hapten 6-(2,4,6-trinitro)-phenylhexanoic acid to improve the selectivity and sensitivity of antibodies for the detection of one of the most important explosives, trinitrotoluene. With a conjugate of bovine serum albumin and a highly purified N-hydroxy-succinimide (NHS)–activated hapten, two rabbits were immunized to obtain polyclonal antibodies. The immunization process was monitored by enzyme-linked immunosorbent assay to gain information about the progress of antibody titer and affinity. Finally, the polyclonal antibodies reached an affinity constant of (5.1 ± 0.6) × 109l/mol (rabbit R1) and (2.3 ± 0.2) × 109l/mol (rabbit R2). The respective assays show a minimum test midpoint (IC50 value) of 0.1 ± 0.01 µg/l (R1) and 0.2 ± 0.02 µg/l (R2) and a working range of 0.005 to 150 µg/l (R1) and 0.007 to 200 µg/l (R2), which corresponds to more than four orders of magnitude for both. This is quite remarkable for a competitive immunoassay, which is often believed to have a narrow dynamic range. The limit of detection was calculated to 0.6 ng/l (R1) and 1.5 ng/l (R2), which is up to 100 times improvement in relation to the assay of Zeck et al. (1999) on the basis of a monoclonal antibody. The excellent selectivity of the polyclonal antibodies was comprehensively examined by determining the cross-reactivity to common explosives and other nitroaromatics including nitro musk components. The widely held belief that polyclonal antibodies generally display higher cross-reactivities than monoclonals could be disproved. KW - Immunoassay KW - ELISA KW - Security KW - Terrorism PY - 2012 U6 - https://doi.org/10.1002/jmr.2162 SN - 0952-3499 SN - 1099-1352 VL - 25 IS - 2 SP - 89 EP - 97 PB - Heyden CY - London AN - OPUS4-25441 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Merkel, Stefan A1 - Köppen, Robert A1 - Koch, Matthias A1 - Emmerling, Franziska A1 - Nehls, Irene T1 - Lumi-ergometrine - structural identification and occurrence in sclerotia N2 - The fungus Claviceps purpurea grows on grasses and cereal grains and produces six predominant ergot alkaloids. These toxic substances undergo different transformation reactions during storage and cereal processing. One of these reactions is the addition of water to a double bond in the ergoline skeleton. Since light is required for this process, the substances formed were named lumi-ergot alkaloids. From these, a new asymmetric carbon and consequently two epimers with different polarities are formed. For investigations of lumi-ergot alkaloids, ergometrine was used exemplarily as it represents one of the six ergot alkaloids predominantly formed by Claviceps purpurea. The main reaction product, the less polar compound of the two lumiergometrine epimers, was separated by HPLC and unambiguously identified as 10-(S)-lumi-ergometrine using X-ray structural analysis. A HPLC-MS/MS method was developed for the detection of this substance in sclerotia extracts. Using this method, the existence of both epimeric forms of lumiergometrine could be proved in the sclerotia. This is the first time that the existence of a lumi-transformation product of ergot alkaloids was proved in naturally grown samples. KW - Lumi-ergot alkaloids KW - Sclerotia KW - Claviceps purpurea KW - HPLC-MS/MS PY - 2012 U6 - https://doi.org/10.1007/s12550-011-0116-5 SN - 0178-7888 VL - 28 IS - 1 SP - 59 EP - 66 PB - Springer CY - Berlin; Heidelberg AN - OPUS4-25442 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Völzke, Holger A1 - Erhard, Anton T1 - Aging Management in Dry Spent Fuel Cask Storage T2 - INMM/NIC XXVII Spent Fuel Seminar CY - Arlington, VA, USA DA - 2012-01-31 PY - 2012 AN - OPUS4-25444 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Binder, Christian T1 - Proven to be Burn-Out-Safe! - For the Lifetime of an Oxygen Component? T2 - EIGA Workshop 2012 "Oxygen Safety" CY - Brussels, Belgium DA - 2012-01-25 PY - 2012 AN - OPUS4-25445 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Fettig, Ina A1 - Philipp, Rosemarie A1 - Rosin, Claudia A1 - Klyk-Seitz, Urszula-Anna T1 - WP1. Development of a validates measurement procedure for Tributyltin (TBT) in whole water samples at a concentration level required by the EU Water Framework Directive (WFD) T2 - ENV08 process meeting CY - Biarritz, France DA - 2012-01-30 PY - 2012 AN - OPUS4-25446 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Meyer-Plath, Asmus A1 - Kuhlbusch, T. A1 - Hanelt, Sven A1 - Plitzko, S. A1 - Schäffer, A. A1 - Voetz, Matthias T1 - Carbo-Safe - Messung, Feisetzung und Effekte von CNTs T2 - 4. Jahrestagung inno.CNT CY - Bayreuth, Germany DA - 2012-01-30 PY - 2012 AN - OPUS4-25447 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Meyer-Plath, Asmus A1 - Zenkel, C. A1 - Brinks, M. T1 - Charakterisierung von MWCNT T2 - 4. Jahrestagung inno.CNT CY - Bayreuth, Germany DA - 2012-01-30 PY - 2012 AN - OPUS4-25448 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Meyer-Plath, Asmus A1 - Hanelt, Sven T1 - Quantitative chemische Charakterisierung von CNT T2 - 4. Jahrestagung inno.CNT CY - Bayreuth, Germany DA - 2012-01-30 PY - 2012 AN - OPUS4-25449 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Lohrer, Christian A1 - Kampa, Andreas A1 - Fink, Heidrun A1 - Kurth, Lutz A1 - Alef, G. T1 - Burst height measurements of spherical shells for different calibers and mortar lengths T2 - 13th International Symposium on Fireworks CY - Valletta, Malta DA - 2012-04-23 PY - 2012 AN - OPUS4-25820 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Kurth, Lutz A1 - Lohrer, Christian A1 - Fink, Heidrun T1 - QUALITY SYSTEMS FOR FIREWORKS - AUDITING EXPERIENCES BY THE NOTIFIED BODY BAM T2 - 13th International Symposium on Fireworks CY - Valletta, Malta DA - 2012-04-23 PY - 2012 AN - OPUS4-25821 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - El Malah, T. A1 - Rolf, Simone A1 - Weidner, Steffen A1 - Thünemann, Andreas A1 - Hecht, S. T1 - Amphiphilic folded dendrimer discs and their thermosensitive self-assembly in water N2 - Folded dendrimers with peripheral ether side chains show a thermally induced hierarchical aggregation process, in which the transition temperature and the dimensions of the aggregates can readily be tuned via the generation number (see figure). KW - Click chemistry KW - Cotton effect KW - Dendrimers KW - Hierarchical self-assembly KW - Thermochemistry PY - 2012 U6 - https://doi.org/10.1002/chem.201200414 SN - 0947-6539 SN - 1521-3765 VL - 18 IS - 19 SP - 5837 EP - 5842 PB - Wiley-VCH Verl. CY - Weinheim AN - OPUS4-25822 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Shabanov, Sergej V. A1 - Gornushkin, Igor B. T1 - Absorption tomography of laser induced plasmas N2 - An emission tomography of laser-induced plasmas employed in the laser induced breakdown spectroscopy (LIBS) requires signal integration times in a microsecond range during which the LIBS plasma cannot be considered stationary. Consequently, the use of the data for reconstructing the plasma properties under the assumption that the latter does not change significantly during the integration time leads to inaccurate results. To reduce the integration time, it is proposed to measure a plasma absorption in parallel rays using a scanning rectangular aperture whose dimension Δ along the scanning direction is about a characteristic size of plasma plumes (Δ ~ 1 cm) and the other dimension Δp is of the order of a uniformity length of plasma parameters (Δp ~ 10 µm). The aperture is moved step by step along the scanning direction and the total energy of photons coming through the aperture is measured during time T at each position of the aperture. Owing to the large size of the aperture, the integration time T is reduced by a factor ~ Δp/Δ. A numerical data processing is proposed to restore the spatial resolution of the plasma absorption along the scanning direction. It is determined by the scanning step Δs ≤ Δp. Another advantage of the proposed procedure is that inexpensive linear CCD or non-discrete (PMT, photodiode) detectors can be used instead of costly 2-dimensional detectors. KW - Plasma tomography KW - Laser induced plasma PY - 2012 U6 - https://doi.org/10.1016/j.jqsrt.2011.12.016 SN - 0022-4073 VL - 113 IS - 7 SP - 518 EP - 523 PB - Pergamon Press CY - Oxford [u.a.] AN - OPUS4-25823 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Nagli, L. A1 - Gaft, M. A1 - Gornushkin, Igor B. T1 - Fraunhofer-type absorption lines in double-pulse laser-induced plasma N2 - We studied the confocal double-pulse laser-induced plasma in the very beginning of its life. It was found that the second laser pulse fired 0.7 to 5 µs after the first pulse produces plasma which, during the first 0 to 20 ns, resembles solar configuration. There is a very hot and compact plasma core that radiates a broad continuum spectrum and a much larger and cooler outer shell. The light from the hot core passes through the cold outer shell and is partly absorbed by atoms and ions that are in ground (or close to ground) states. This produces absorption lines that are similar to Fraunhofer lines observed in the sun spectrum. The possibility to use these absorption lines for new direct and calibration free laser-induced breakdown spectroscopy analytical applications, both in laboratory and industrial conditions, is proved. PY - 2012 U6 - https://doi.org/10.1364/AO.51.00B201 SN - 0003-6935 SN - 1539-4522 VL - 51 IS - 7 SP - B201 EP - B212 PB - Optical Society of America CY - Washington, DC AN - OPUS4-25828 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Min, Hyegeun A1 - Girard-Lauriault, Pierre-Luc A1 - Gross, Thomas A1 - Lippitz, Andreas A1 - Dietrich, Paul A1 - Unger, Wolfgang T1 - Ambient-ageing processes in amine self-assembled monolayers on microarray slides as studied by ToF-SIMS with principal component analysis, XPS, and NEXAFS spectroscopy N2 - We investigated the ageing of amine-terminated self-assembled monolayers (amine-SAMs) on different silica substrates due to exposure to different ambient gases, pressures, and/or temperatures using time-of-flight secondary ion mass spectrometry (ToF-SIMS) with principal component analysis and complementary methods of surface analysis as X-ray photoelectron spectroscopy (XPS) and near edge X-ray absorption fine structure (NEXAFS). The goal of this study is to examine the durability of primary amine groups of amine-SAMs stored in a user laboratory prior to being used as supports for biomolecule immobilization and other applications. We prepared amine-SAMs on the native oxides of silicon wafers and glass slides using 3- aminopropyl triethoxysilane, by using optimized conditions such as anhydrous organic solvent and reaction time scale of hours to avoid multilayer growth. Selected commercial amine-SAM slides have been investigated, too. When the amine-SAMs are exposed to air, oxygen incorporation occurs, followed by formation of amide groups. The formation of oxygen species due to ageing was proved by ToFSIMS, XPS, and NEXAFS findings such as CNO- secondary ion emission at m/z 42, observation of the N 1s HNC=O component peak at 400.2–400.3 eV in XPS, and, last but not least, by formation of a π*(HNC=O) resonance at 401 eV in the N K-edge X-ray absorption spectrum. It is concluded that the used multi-method approach comprising complementary ToF-SIMS, XPS, and NEXAFS analyses is well suited for a thorough study of chemical aspects of ageing phenomena of amine-SAM surfaces. KW - Amine-SAM KW - Ageing process KW - ToF-SIMS KW - NEXAFS KW - XPS PY - 2012 U6 - https://doi.org/10.1007/s00216-012-5862-5 SN - 1618-2642 SN - 1618-2650 VL - 403 IS - 2 SP - 613 EP - 623 PB - Springer CY - Berlin AN - OPUS4-25829 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Otremba, Frank A1 - Kühl, Christiane T1 - Sicherheitstechnische Anforderungen an Rohrfernleitungen in schutzwürdigen Gebieten T2 - Wangerooger Sicherheitstage 2012 Workshop: Vermeidung katastrophaler Umweltschäden - Schadensbegrenzung bei Dennoch/Exzeptionellen Störfällen CY - Wangerooge, Germany DA - 2012-04-22 PY - 2012 AN - OPUS4-25770 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Otremba, Frank A1 - Kühl, Christiane T1 - Schadensbegrenzung bei Dennoch/Exzeptionellen Störfällen T2 - Wangerooger Sicherheitstage 2012, Vermeidung katastrophaler Umweltschäden CY - Wangerooge, Germany DA - 2012-04-22 PY - 2012 AN - OPUS4-25771 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Rauchegger, Christian A1 - Schröder, Volkmar A1 - Lohse, Volkmar A1 - Schmidt, Dirk A1 - Thévenin, D. T1 - Release and dispersion of heavy gases - experimental results and numerical simulations N2 - Heavy gases in large quantities are used worldwide in various industries. Past incidents, such as the liquefied gas disaster in Viareggio (2009) have shown that these materials are difficult to handle in a safe manner. According to the German Hazardous Incident Ordinance (StörfallVO 2000 - 12. BImSchV) plant operators with 'extended responsibilities' must produce a report in which they verify that, in the event of an unintentional gas release, the surrounding area will not be aversely affected. The essential elements of this report include calculations of both released mass flow and gas dispersion. Using models such as the VDI guideline 3783 (state of the art in Germany) plant operators are able to predict the characteristics of likely gas dispersions. Within the framework of the reported experimental trials, the release process of heavy gases from standard gas cylinders was investigated. Using the results of this investigation a calculation methodology has been developed which is able to predict the mass flow of a gas-phase release. As input parameters only the geometry of the gas cylinder, the material properties of the respective fluid as well as the environmental parameters such as velocity of approach and air temperature are required. In the course of modeling various approaches for nucleate boiling have been tested for their applicability. Both the calculation methodology and a comparison between the calculated and experimental results will be presented. Within the same framework of experimental trials, the dispersion process of the aforementioned heavy gases was also investigated. The dispersed gas cloud in this case was considered as originating from a continuous point source under ambient conditions. For the various trials concentrations both in the heavy gas (≥ 1 vol.-%) and in the neutral gas field (≤ 3000 ppm) were measured. In the immediate area of the release the length, width and height of the heavy gas cloud were evaluated. The experimental results, comparison calculations and the measurement techniques will be presented. T2 - 8th Global congress on process safety (GCPS) CY - Houston, TX, USA DA - 2012-04-01 KW - Heavy gases KW - Gas releases KW - Gas Dispersion KW - VDI Guideline 3783 PY - 2012 UR - https://www.researchgate.net/publication/267345315_Release_and_Dispersion_of_Heavy_Gases_-_Experimental_Results_and_Numerical_Simulations SN - 978-0-8169-1071-7 IS - Paper 104aq SP - 1 EP - 16 AN - OPUS4-25772 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Neumann, Patrick P. A1 - Asadi, S. A1 - Lilienthal, A.J. A1 - Bartholmai, Matthias A1 - Schiller, J.H. T1 - Autonomous gas-sensitive microdrone - wind vector estimation and gas distribution mapping N2 - This article presents the development and validation of an autonomous, gas sensitive microdrone that is capable of estimating the wind vector in real time using only the onboard control unit of the microdrone and performing gas distribution mapping (DM). Two different sampling approaches are suggested to address this problem. On the one hand, a predefined trajectory is used to explore the target area with the microdrone in a real-world gas DM experiment. As an alternative sampling approach, we introduce an adaptive strategy that suggests next sampling points based on an artificial potential field (APF). Initial results in real-world experiments demonstrate the capability of the proposed adaptive sampling strategy for gas DM and its use for gas source localization. KW - Anemometric sensor KW - Autonomous micro UAV KW - Chemical sensing KW - Gas distribution modelling KW - Gas source localization KW - Gas sensors KW - Mobile sensing system KW - Quadrocopter KW - Sensor planning KW - Artificial potential field PY - 2012 U6 - https://doi.org/10.1109/MRA.2012.2184671 SN - 1070-9932 VL - 19 IS - 1 SP - 50 EP - 61 PB - IEEE CY - New York, NY, USA AN - OPUS4-25773 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Kannengießer, Thomas A1 - Kromm, Arne T1 - Influence of Heat Control on Welding Residual Stresses in Multi-layer Component Joints T2 - IIW Intermediate Meeting Commission IX CY - The Abingtons, England DA - 2012-03-22 PY - 2012 AN - OPUS4-25774 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Kannengießer, Thomas A1 - Böllinghaus, Thomas T1 - Cold Cracking Tests - An Overview of Present Technologies and Applications T2 - IIW Intermediate Meeting Commission II CY - The Abingtons, England DA - 2012-03-20 PY - 2012 AN - OPUS4-25775 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Kannengießer, Thomas A1 - Griesche, Axel A1 - Beyer, Katrin T1 - Studies of hydrogen diffusion in steels with neutron radiography T2 - Neutron Imaging User Symposium NIUS 2012 CY - Bad Zurzach, Switzerland DA - 2012-04-15 PY - 2012 AN - OPUS4-25776 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Kannengießer, Thomas A1 - Dabah, Eitan A1 - Beyer, Katrin A1 - Brauser, Stephan A1 - Mente, Tobias T1 - Carrier Gas Hot Extraction for analysis of the hydrogen trapping and diffusion behaviour in duplex structures T2 - IIW Intermediate Meeting Commission II CY - The Abingtons, England DA - 2012-03-20 PY - 2012 AN - OPUS4-25777 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Kromm, Arne T1 - Bewertung von Legierungen zur Eigenspannungskontrolle beim Schweißen unter besonderer Berücksichtigung der Umwandlungsplastizität T2 - 4. DFG Nachwuchsakademie "Analyse und Bewertung von Eigenspannungen auf unterschiedlichen Längenskalen" CY - Kassel, Germany DA - 2012-04-23 PY - 2012 AN - OPUS4-25779 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Dreßler, Martin A1 - Nofz, Marianne A1 - Dörfel, Ilona A1 - Saliwan Neumann, Romeo T1 - Diffusion of Cr, Fe, and Ti ions from Ni-base alloy inconel-718 into a transition alumina coating N2 - Heat treating metals at high temperatures trigger diffusion processes which may lead to the formation of oxide layers. In this work the diffusion of Cr, Fe and Ti into an alumina coating applied to Inconel-718 is being investigated. Mass gain measurements, UV–vis spectroscopy and transmission electron microscopy were applied in order to study the evolution of the diffusion process. It was found that mainly Cr as well as minor amounts of Fe and Ti are being incorporated into the alumina coating upon prolonged heat treatment at 700 °C. It could be shown that alumina coatings being void of Cr have the same oxidation related mass gain as uncoated samples. However, incorporation of Cr into the alumina coating decreased their mass gain below that of uncoated substrates forming a Cr oxide scale only. KW - Diffusion KW - UV–vis spectroscopy KW - Transmission electron microscopy KW - Alumina coatings KW - Sol-gel deposition PY - 2012 U6 - https://doi.org/10.1016/j.tsf.2012.02.006 SN - 0040-6090 VL - 520 IS - 13 SP - 4344 EP - 4349 PB - Elsevier CY - Amsterdam AN - OPUS4-25830 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Konersmann, Rainer T1 - Zugentgleisungen mit Eisenbahnkesselwagen N2 - Auch in hoch industrialisierten Ländern, die für alle Lebensbereiche hohe Sicherheitsstandards entwickelt haben, gehören Unfallereignisse zum täglichen Leben. Unfälle mit Eisenbahnkesselwagen, in denen Gefahrgut transportiert wird, stehen in Europa und Deutschland zum Glück nicht auf der Tagesordnung. Dies bedeutet jedoch nicht, dass bestehende Risiken nicht weiter verringert werden müssen. Durch die marginale Datenbasis sind risikoanalytische Untersuchungen jedoch nur eingeschränkt möglich. Diese Situation kann verbessert werden, wenn auch internationale Unfallanalysen miteinbezogen werden. Die BAM hat über einhundert Unfallberichte mit Eisenbahnkesselwagen analysiert. Über die Ergebnisse dieser Untersuchung wird nachfolgend berichtet. KW - Gefahrguttransport KW - Eisenbahnkesselwagen KW - Entgleisungstopografie KW - Entgleisungsgeschwindigkeit KW - Risikominimierung PY - 2012 SN - 2191-0073 VL - 2 IS - 5 SP - 38 EP - 46 PB - Springer-VDI-Verl. CY - Düsseldorf AN - OPUS4-25831 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Drzymala, Sarah A1 - Kraus, Werner A1 - Emmerling, Franziska A1 - Koch, Matthias T1 - (3S)-14,16-Dihydroxy-3-methyl-3,4,5,6,9,10,11,12-octa-hydro-1H-2-benzoxacyclotetradecine-1,7(8H)-dione (zearalanone) monohydrate N2 - The absolute configuration of the title compound, C18H24O5·H2O, was not been determined by anomalous-dispersion effects, but has been assigned by reference to an unchanging chiral centre in the synthetic procedure. Intramolecular O—H···O hydrogen bonds stabilize the molecular conformation. In the crystal, O—H···O hydrogen bonds link the main molecules and the water molecules, forming an infinite three-dimensional network. KW - Zearalanone KW - Crystal structure PY - 2012 U6 - https://doi.org/10.1107/S1600536812018168 SN - 1600-5368 VL - 68 IS - 5 SP - o1577, sup1 EP - sup7 PB - Munksgaard CY - Copenhagen AN - OPUS4-25832 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Kupsch, Andreas A1 - Lange, Axel A1 - Hentschel, Manfred P. A1 - Grothausmann, R. A1 - Arlt, Tobias A1 - Manke, I. T1 - High quality reconstruction of insufficient tomographic data by a new iterative procedure N2 - In order to demonstrate the challenging tasks in current R&D applications in the field of renewable energy sources experimental neutron and electron tomographic data sets of PEM fuel cell components are processed by an advanced version of the DIRECTT algorithm. The neutron measurements of the water distribution suffer from several intrinsic limitations such as massive position dependent focal smearing due to the large primary neutron beam aperture. Electron (TEM) tomography allows characterisation of nanometre sized catalyst particles but is hampered by the following restrictions: partial opacity, a limited sector of projections (missing wedge), very few projections, samples exceeding the detector size (region of interest) and improper angular alignment. Beyond the capabilities of other algorithms DIRECTT proves to overcome these essential reconstruction problems, in comparison to FBP and SIRT. Nevertheless, careful data pre-processing is an inevitable requirement in order to fully exploit the algorithm's potentials. T2 - 18th WCNDT - World conference on nondestructive testing CY - Durban, South Africa DA - 2012-04-16 KW - Iterative reconstruction KW - DIRECTT KW - Neutron tomography KW - Electron tomography KW - Focal smearing KW - Limited View KW - Opacity KW - Fuel cell KW - Renewable energy PY - 2012 UR - http://www.ndt.net/article/wcndt2012/papers/207_wcndtfinal00207.pdf SN - 978-0-620-52872-6 SP - 1 EP - 8(?) AN - OPUS4-25833 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Kupsch, Andreas A1 - Lange, Axel A1 - Hentschel, Manfred P. A1 - Lück, S. A1 - Schmidt, V. A1 - Hilger, A. A1 - Garcia-Moreno, F. A1 - Manke, I. T1 - Reconstruction of limited view tomography data by DIRECTT N2 - Incomplete tomographic data sets such as limited view (missing wedge) data represent a well-known challenge for reconstruction algorithms, since they unavoidably lead to substantial image artefacts. Such data sets may occur in industrial computed tomography of limited access (e.g. extended components, fixed objects), directional opacity, limited sample life time or laminographic set-up. We present strategies to effectively suppress the typical elongation artefacts (e.g. lemon-like deformed pores) by our iterative algorithm DIRECTT which offers the opportunity to vary the versatile reconstruction parameters within each cycle. Those strategies are applied to experimental data obtained from metallic foams as well as model simulations. Comparison is drawn to state-ofthe- art techniques (filtered backprojection and algebraic techniques). Further reference is made to reconstructions of complete data sets serving as gold standards. For quantitative assessment of the reconstruction quality adapted techniques based on spatial statistics are introduced. T2 - 18th WCNDT - World conference on nondestructive testing CY - Durban, South Africa DA - 2012-04-16 KW - Computed tomography KW - Limited tomographic data KW - Iterative reconstruction KW - DIRECTT KW - Limited view KW - Missing wedge KW - Spatial statistics PY - 2012 UR - http://www.ndt.net/article/wcndt2012/papers/208_wcndtfinal00208.pdf SN - 978-0-620-52872-6 SP - 1 EP - 9(?) AN - OPUS4-25834 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Lange, Axel A1 - Kupsch, Andreas A1 - Hentschel, Manfred P. A1 - Müller, Bernd R. T1 - Straightforward correction of X-ray detector backlighting N2 - A novel approach to strongly suppress artifacts in radiography and computed tomography caused by the effect of diffuse background signals ('backlighting') of 2D X-ray detectors is suggested. Depending on the detector geometry the mechanism may be different, either based on the optical scattering of the fluorescent screen materials into optical detection devices or Compton or X-ray fluorescence scattering by the detector components. Consequently, these erroneous intensity portions result in locally different violations of Lambert Beer’s law in single projections (radiographs) as function of the detector area coverage and the magnitude of the attenuation. The absorption of multiple metal sheets is investigated by monochromatic synchrotron radiation, thus excluding beam hardening. The proposed correction procedure simply requires the individual subtraction of one and the same fraction of the primary and transmitted mean intensity, as a constant (non-local) scattering mechanism is assumed. T2 - 18th WCNDT - World conference on nondestructive testing CY - Durban, South Africa DA - 2012-04-16 KW - X-ray detector backlighting KW - Radiography KW - Fluorescent screen KW - Diffuse background KW - Computed tomography PY - 2012 UR - http://www.ndt.net/article/wcndt2012/papers/205_wcndtfinal00205.pdf SN - 978-0-620-52872-6 SP - 1 EP - 8(?) AN - OPUS4-25835 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Lange, Axel A1 - Kupsch, Andreas A1 - Müller, Bernd R. A1 - Hentschel, Manfred P. T1 - Edge artefacts of radiographic images by X-ray refraction N2 - The relevance of nano sized structures and interfaces in upcoming technologies requires new non-destructive Xray techniques exploiting attenuation as well as scattering. In the course of driving the resolution and the contrast of modern radiography into micro and nano metre dimension the inevitable scattering effects require increased attention. Several radiologists interpret the observed edge artefacts simply by 'phase contrast' due to different X-ray path lengths within the sample and others refer to Fresnel scattering. The ultra small angle scattering is of high intensity and may reach the level of the primary beam. We present monochromatic synchrotron measurements on rather simply shaped objects (such as plates and cylinders) which prove clearly the dominance of refraction intensity over total reflection and coherent small angle scattering. The refraction conditions hold for angles of incidence of several degrees to the surface, but typical deflection angles range from several seconds to minutes of arc. Additionally to the concept of 'phase contrast' of the primary beam its deflection becomes the essential issue. The appropriate removal of the attenuation contribution enables the imaging of inner surfaces and interfaces by refraction scanning topography. The presented measurements of reference particles demonstrate the reliability of laboratory refraction scanners applying X-ray tubes. T2 - 18th WCNDT - World conference on nondestructive testing CY - Durban, South Africa DA - 2012-04-16 KW - X-ray refraction KW - Small angle scattering KW - Phase contrast radiography KW - Refraction topography KW - Nanostructures KW - Nanocracks PY - 2012 UR - http://www.ndt.net/article/wcndt2012/papers/274_wcndtfinal00274.pdf SN - 978-0-620-52872-6 SP - 1 EP - 11(?) AN - OPUS4-25836 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Boetcher, U. A1 - Steinborn, Gabriele A1 - Kuchenbecker, Petra A1 - Scheler, S. T1 - Bericht über einen Ringversuch zur Messung des Zetapotenzials und der Partikelgröße an Suspensionen submikroskaliger Pulver KW - Partikelgröße KW - Zetapotential KW - Keramische Suspensionen PY - 2012 VL - 14 IS - April SP - 8 EP - 11 AN - OPUS4-25837 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Resch-Genger, Ute A1 - Bremser, Wolfram A1 - Pfeifer, Dietmar A1 - Spieles, Monika A1 - Hoffmann, Angelika A1 - DeRose, P.C. A1 - Zwinkels, J. C. A1 - Gauthier, F. A1 - Ebert, B. A1 - Taubert, D. A1 - Monte, C. A1 - Voigt, J. A1 - Hollandt, J. A1 - Macdonald, R. T1 - State-of-the art comparability of corrected emission spectra. 1. spectral correction with physical transfer standards and spectral fluorescence standards by expert laboratories N2 - The development of fluorescence applications in the life and material sciences has proceeded largely without sufficient concern for the measurement uncertainties related to the characterization of fluorescence instruments. In this first part of a two-part series on the state-of-the-art comparability of corrected emission spectra, four National Metrology Institutes active in high-precision steady-state fluorometry performed a first comparison of fluorescence measurement capabilities by evaluating physical transfer standard (PTS)-based and reference material (RM)-based calibration methods. To identify achievable comparability and sources of error in instrument calibration, the emission spectra of three test dyes in the wavelength region from 300 to 770 nm were corrected and compared using both calibration methods. The results, obtained for typical spectrofluorometric (0°/90° transmitting) and colorimetric (45°/0° front-face) measurement geometries, demonstrated a comparability of corrected emission spectra within a relative standard uncertainty of 4.2% for PTS- and 2.4% for RM-based spectral correction when measurements and calibrations were performed under identical conditions. Moreover, the emission spectra of RMs F001 to F005, certified by BAM, Federal Institute for Materials Research and Testing, were confirmed. These RMs were subsequently used for the assessment of the comparability of RM-based corrected emission spectra of field laboratories using common commercial spectrofluorometers and routine measurement conditions in part 2 of this series (subsequent paper in this issue). KW - Fluorescence KW - Photoluminescence KW - Dye KW - Uncertainty KW - Method comparison KW - Standard KW - Method comparison KW - Spectral correction KW - Spectral fluorescence standard PY - 2012 U6 - https://doi.org/10.1021/ac2034503 SN - 0003-2700 SN - 1520-6882 VL - 84 IS - 9 SP - 3889 EP - 3898 PB - American Chemical Society CY - Washington, DC AN - OPUS4-25838 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Linck, Lena A1 - Reiß, E. A1 - Bier, F. A1 - Resch-Genger, Ute T1 - Direct labeling rolling circle amplification as a straightforward signal amplification technique for biodetection formats N2 - Biodetection formats, such as DNA and antibody microarrays, are valuable tools in the life sciences, but for some applications, the detection limits are insufficient. A straightforward strategy to obtain signal amplification is the rolling circle amplification (RCA), an easy, isothermal, and enzymatic nucleic acid synthesis that has already been employed successfully to increase the signal yield for several single-analyte and multiplexing assays in conjunction with hybridization probes. Here, we systematically investigated the parameters responsible for the RCA driven signal amplification with fluorescent labels, such as the type of fluorophore chosen, labeling strategy, composition of reaction solution, and number of handling steps. In labeling strategies, post-synthetic labeling via a Cy3-hybridization probe was compared to the direct incorporation of fluorescent Cy3–dUTP and DY-555–dUTP into the nascent strand during synthesis. With our direct labeling protocol, the assay's runtime and handling steps could be reduced while the signal yield was increased. These features are very attractive for many detection formats but especially for point-of-care diagnostic kits that need to be simple enough to be performed by scientifically untrained personnel. KW - Method KW - Label KW - Fluorescence KW - RCA KW - Amplification KW - Oligonucleotide KW - DNA KW - Assay KW - Fluorophore KW - Dye content KW - Surface PY - 2012 U6 - https://doi.org/10.1039/c2ay05760c SN - 1759-9660 SN - 1759-9679 VL - 4 IS - 5 SP - 1215 EP - 1220 PB - RSC Publ. CY - Cambridge AN - OPUS4-25839 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Burkert, Andreas A1 - Fischer, Joachim A1 - Lehmann, Jens T1 - Anforderungen an den Korrosionsschutz durch makro- und mikroklimatische Einflussfaktoren T2 - 3-Länder-Korrosionstagung - Korrosion und Korrosionsschutzmaßnahmen von Verkehrsinfrastrukturen: Eisenbahnen, Seilbahnen, Straßen, Tunnel und Brücken CY - Dübendorf, Schweiz DA - 2012-04-26 KW - Atmosphärische Korrosion KW - Normen und Regelwerke KW - Korrosivitätsklassen KW - Expositionsklassen KW - Werkstoffauswahl PY - 2012 SN - 978-3-935406-48-2 SP - 5 EP - 15 PB - DECHEMA AN - OPUS4-25840 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Dorgerloh, Ute A1 - Theißen, H. T1 - Standortauswahl und Feldversuche zur Bestimmung organischer Schadstoffe in Grundwasserproben T2 - Stabilisierung von Grundwasserproben zur Bestimmung organischer Schadstoffe - LFP Projekt B4.11 CY - Berlin, Germany DA - 2012-01-26 PY - 2012 AN - OPUS4-25841 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Wallstabe, Ronald T1 - Laser-assisted surface modification of alumina and its tribological behavior N2 - High performance friction systems, e.g., dry clutches and brakes, require a good wear resistance and a friction coefficient that is nearly independent from sliding velocity and environmental conditions. Organic-based friction materials have reached their limitations regarding higher power densities. Engineering ceramics such as alumina (Al2O3) or silicon carbide (SiC) offer a great potential since remarkably higher thermal and mechanical loading is possible. However, the tribological performance of these monolithic ceramics is still insufficient. The aim of the present study was to assess the potential of a laser-assisted surface modification process in order to improve the tribological performance with regard to the application in dry friction systems. Therefore, commercially available alumina was modified using a newly developed laser-assisted preheating process and subsequent melting of the ceramic’s surface using a CO2-laser and modification by additives such as TiC, TiN, B4C, WC, ZrB2, Cr, Ni, Cu, and Ti. A systematic variation of additives and process parameters led to different multiphase microstructures. Subsequently, these were characterized using scanning electron microscopy and surface analysis methods (wavelength dispersive X-ray spectroscopy, energy dispersive X-ray spectroscopy). Finally, the tribological properties were investigated using a laboratory tribometer. The surface-modified ceramics were tested in unidirectional sliding motion against steel disks. The tribological results of the surface-modified ceramics were compared to those of monolithic Al2O3 and SiC ceramics and showed a reduced dependence of friction coefficient on sliding velocity. Moreover, the multi-phase ceramics possessed a higher wear resistance than the monolithic ones. KW - Alumina KW - Ceramics KW - Ceramic matrix composites KW - Dry sliding KW - Laser-assisted surface modification KW - Steel KW - Tribology KW - Wear resistance PY - 2012 U6 - https://doi.org/10.1007/s11665-012-0215-2 SN - 1059-9495 SN - 1544-1024 SP - 1 EP - 13(?) PB - ASM international CY - Materials Park, Ohio AN - OPUS4-25842 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CHAP A1 - Schießl, P. A1 - Meng, Birgit A1 - Rößler, G. A1 - Schröder, P. A1 - Schwamborn, B. A1 - Spengler, A. A1 - Wallner, B. ED - Zilch, K. ED - Diederichs, C.J. ED - Katzenbach, R. ED - Beckmann, K. J. T1 - Konstruktiver Ingenieurbau und Hochbau KW - Baustoffe KW - Beton KW - Bindemittel KW - Zement PY - 2012 SN - 978-3-642-14449-3 IS - Kap. 3.1 SP - 966 EP - 1038 PB - Springer ET - 2. Aufl. AN - OPUS4-25844 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CHAP A1 - Ritter, Z. A1 - Staude, Andreas A1 - Prohaska, S. A1 - Felsenberg, D. ED - Naik, G.R. T1 - Osteocytes characterization using synchrotron radiation CT and finite element analysis PY - 2012 UR - http://www.intechopen.com/articles/show/title/osteocytes-characterization-using-synchrotron-radiation-ct-and-finite-element-analysis SN - 978-953-51-0412-4 U6 - https://doi.org/10.5772/35242 IS - Chapter 7 SP - 165 EP - 190 PB - InTech CY - Rijeka, Croatia AN - OPUS4-25845 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Torge, Manfred A1 - Krug, Sonja A1 - Bücker, Michael A1 - Feldmann, Ines A1 - Scharf, Holger A1 - Witthuhn, Heike A1 - Sander, C. T1 - Flüchtiges Quecksilber - Emission von Quecksilber aus historischen Zinnamalgamspiegeln N2 - Mit der Erfindung des Glas-Guß-Walzverfahrens eröffnete sich die Möglichkeit, größere Spiegelflächen als zuvor herzustellen. Diese sogenannten Quecksilberspiegel sind mit Zinnamalgam beschichtet. Wenn Restauratoren mit Zinnamalgamspiegeln arbeiten, müssen sie strenge Sicherheitsvorkehrungen einhalten. Häufig finden sich im Spiegelrahmen Quecksilberkugeln, die beim Öffnen herausfallen und damit gesundheitsschädliches Quecksilber freisetzen können. In einem Forschungsprojekt wurden die Quecksilberemissionen aus Zinnamalgamspiegeln gemessen und Möglichkeiten entwickelt, diese zu verringern. KW - Quecksilber KW - Emission KW - Zinnamalgamspiegel PY - 2012 SN - 0933-4017 VL - 118 IS - 3 SP - 30 EP - 37 PB - Callwey CY - München AN - OPUS4-25846 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Mishra, Kirti Bhushan A1 - Wehrstedt, Klaus-Dieter A1 - Krebs, Holger T1 - Lessons learned from recent fuel storage fires T2 - 11th International Conference on Combustion and Energy Utilization (ICCEU) CY - Coimbra, Portugal DA - 2012-05-09 PY - 2012 AN - OPUS4-25847 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Schälike, Stefan A1 - Wehrstedt, Klaus-Dieter A1 - Schönbucher, A. T1 - Multiple fires of organic peroxides and hydrocarbons T2 - IGUS EOS Meeting CY - Berlin, Germany DA - 2012-05-07 PY - 2012 AN - OPUS4-25848 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Schälike, Stefan A1 - Wehrstedt, Klaus-Dieter A1 - Schönbucher, A. T1 - Mass burning rates of organic peroxides including a liquid phase decomposition reaction T2 - IGUS EOS Meeting CY - Berlin, Germany DA - 2012-05-07 PY - 2012 AN - OPUS4-25849 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Purohit, Purv A1 - Schönhals, Andreas T1 - Structure-property relationship of Nanocomposites based on Polylactide and Layered Double Hydroxide T2 - DPG Frühjahrstagung 2012 CY - Berlin, Germany DA - 2012-03-26 PY - 2012 AN - OPUS4-25790 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Krüger, Simone A1 - Berger, Anka A1 - Krause, Ulrich T1 - Chemical-analytical investigation of fire products in intermediate storages of recycling materials N2 - Organic materials like paper, cardboard, textiles or plastics are mostly flammable. In intermediate storages for recycling products, these materials are stored in large amounts. If fire occurs in these stores, large emissions of smoke and other potentially harmful products are likely. In the present study, the gaseous products released from fires of such materials—for example, because of self-ignition—were investigated. Different fractions (paper/cardboard, textiles and plastics) were crushed at low temperatures (about 80 K) and subsequently allowed to smoulder at different temperatures using the German standard Deutsches Institut für Normung 53436. The gases produced were sampled and analysed using Fourier transform infrared spectroscopy. The chemical composition of these gases differed considerably depending on fuel type. For flammable materials without heteroatom, the gases consisted predominantly of toxic compounds like carbon monoxide and carbon dioxide. Smouldering of materials containing heteroatoms showed, in addition to carbon monoxide, carbon dioxide and water vapour, further toxic components containing the heteroatom. Materials containing chlorine produced hydrogen chloride, and materials containing nitrogen produced ammonia and hydrogen cyanide. KW - Recycling deposits KW - Fire gases KW - FTIR spectroscopy KW - Plastic wastes KW - Paper wastes KW - Textile wastes KW - Smouldering fire PY - 2012 U6 - https://doi.org/10.1002/fam.1098 SN - 0308-0501 SN - 1099-1018 VL - 36 IS - 3 SP - 165 EP - 175 PB - Heyden CY - London AN - OPUS4-25791 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Mehdianpour, Milad A1 - Eisenkolb, Tino ED - Jasienko, J. T1 - Experimental investigations on sliding friction of historic bridge bearings T2 - SAHC 2012 - 8th International conference on structural analysis of historical constructions CY - Wroclaw, Poland DA - 2012-10-15 KW - Bridge bearings KW - Historic bearings KW - Cast steel KW - Sliding friction KW - Friction coefficient PY - 2012 SN - 978-83-7125-216-7 SN - 0860-2395 SP - 1 EP - 9(?) PB - DWE CY - Wroclaw, Poland AN - OPUS4-25793 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Lohrer, Christian A1 - Kampa, Andreas A1 - Fink, Heidrun A1 - Kurth, Lutz A1 - Alef, G. T1 - Burst height measurements of spherical shells for different calibers and mortar lengths T2 - 13th International symposium on fireworks CY - Valletta, Malta DA - 2012-04-23 KW - Altitude measurement techniques KW - Measurement uncertainties KW - Standardisation PY - 2012 SN - 978-0-9867279-3-1 SP - 145 EP - 158 AN - OPUS4-25795 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Lohrer, Christian A1 - Fink, Heidrun A1 - Kurth, Lutz T1 - Quality systems for fireworks - auditing experiences by the notified body BAM T2 - 13th International symposium on fireworks CY - Valletta, Malta DA - 2012-04-23 KW - 2007/23/EC KW - QS modules KW - Product safety PY - 2012 SN - 978-0-9867279-3-1 SP - 159 EP - 172 AN - OPUS4-25796 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Pretsch, Thorsten A1 - Ecker, Melanie A1 - Mirtschin, Nikolaus T1 - Smart Tags carrying QR Codes T2 - 2. Berliner Chemiesymposium, Gesellschaft Deutscher Chemiker - JungChemikerForum CY - Berlin, Germany DA - 2012-04-03 PY - 2012 N1 - Geburtsname von Mirtschin, Nikolaus: Fritzsche, N. - Birth name of Mirtschin, Nikolaus: Fritzsche, N. AN - OPUS4-25797 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Kupsch, Andreas A1 - Lange, Axel A1 - Hentschel, Manfred P. A1 - Lück, S. A1 - Schmidt, V. A1 - Hilger, A. A1 - Garcia-Moreno, Francisco A1 - Manke, I. T1 - Reconstruction of Limited View Tomography Data by DIRECTT T2 - 18th World Conference on Nondestructive Testing CY - Durban, South Africa DA - 2012-04-16 PY - 2012 AN - OPUS4-25798 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Kupsch, Andreas A1 - Lange, Axel A1 - Hentschel, Manfred P. A1 - Grothausmann, R. A1 - Arlt, Tobias A1 - Manke, I. T1 - High Quality Reconstruction of Insufficient Tomographic Data by a New Iterative Procedure T2 - 18th World Conference on Nondestructive Testing CY - Durban, South Africa DA - 2012-04-16 PY - 2012 AN - OPUS4-25799 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Lange, Axel A1 - Kupsch, Andreas A1 - Hentschel, Manfred P. A1 - Müller, Bernd R. T1 - Straightforward Correction of X-Ray Detector Backlighting T2 - 18th World Conference on Nondestructive Testing CY - Durban, South Africa DA - 2012-04-16 PY - 2012 AN - OPUS4-25800 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Lange, Axel A1 - Kupsch, Andreas A1 - Müller, Bernd R. A1 - Hentschel, Manfred P. T1 - Edge Artefacts of Radiographic Images X-ray Refraction T2 - 18th World Conference on Nondestructive Testing CY - Durban, South Africa DA - 2012-04-16 PY - 2012 AN - OPUS4-25801 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Sturm, Heinz A1 - Schartel, Bernhard A1 - Weiß, André A1 - Braun, Ulrike T1 - SEM/EDX: Advanced investigation of structured fire residues and residue formation N2 - Heterogeneous, gradual or structured morphology of fire residues plays an important role in fire retardancy of polymers. A scanning electron microscope with an attached energy dispersive X-ray spectrometer (SEM/EDX) is highlighted as a powerful tool for the advanced characterization of such complex fire residues, since it offers high resolution in combination with both good depth of field and analysis of chemical composition. Two examples are presented: First, comprehensive SEM/EDX investigation on a complex structured fire residue of glass fibre reinforced polyamide 6,6 (PA 66-GF) flame retarded by diethylaluminium phosphinate, melamine polyphosphate and some zinc borate. A multilayered surface crust (thickness ~ 24 µm) covers a rather hollow area stabilized by GF glued together. The resulting efficient thermal insulation results in self-extinguishing before pyrolysis is completed, even under forced-flaming combustion. Second, sophisticated, quasi online SEM/EDX imaging of the formation of residual protection layer in layered silicate epoxy resin nanocomposites (LSEC). Burning specimens were quenched in liquid nitrogen for subsequent analyses. Different zones were distinguished in the condensed phase characterized by distinct processes such as melting and ablation of organic material, as well as agglomeration, depletion, exfoliation and reorientation of the LS. KW - Fire residue KW - SEM/EDX KW - Fire retardancy KW - PA 66 KW - Layered silicate KW - Diethylaluminium phosphinate PY - 2012 U6 - https://doi.org/10.1016/j.polymertesting.2012.03.005 SN - 0142-9418 VL - 31 IS - 5 SP - 606 EP - 619 PB - Elsevier Science CY - Amsterdam [u.a.] AN - OPUS4-25802 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Helmerich, Rosemarie A1 - Bien, J. T1 - 100 Jahre Kaiserbrücke/Grunwaldzki-Brücke in Wroclaw (Polen) KW - Zustandsbewertung KW - Brückenmessung KW - Altstahl KW - Baugeschichte PY - 2012 U6 - https://doi.org/10.1002/stab.201201524 SN - 0038-9145 SN - 1437-1049 SN - 0932-6375 VL - 81 IS - 2 SP - 156 EP - 159 PB - Ernst CY - Berlin AN - OPUS4-25803 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Purohit, Purv A1 - Schönhals, Andreas T1 - Structure-property of Nanocomposites based on Polylactide and Layered Double Hydroxide T2 - Third International Multicomponent Polymer Conference CY - Kottayam, India DA - 2012-03-23 PY - 2012 AN - OPUS4-25804 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Boucher, V.M. A1 - Cangialosi, D. A1 - Yin, Huajie A1 - Schönhals, Andreas A1 - Alegría, A. A1 - Colmenero, J. T1 - Tg depression and invariant segmental dynamics in polystyrene thin films N2 - We investigate the segmental dynamics and glass transition temperature (Tg) of polystyrene (PS) thin films. The former is investigated by alternating current (AC) calorimetry and dielectric spectroscopy (BDS). The Tg, underlying the equilibrium to out-of-equilibrium crossover from the supercooled liquid to the glass, is obtained by differential scanning calorimetry (DSC) and capacitive dilatometry (CD). We show that the intrinsic molecular dynamics of PS are independent of the film thickness both for the freestanding and supported films, whereas Tg decreases with film thickness from several microns down to 15 nm. This result is found for complementary methods and in a simultaneous measurement in BDS and CD. This questions the widespread notion that segmental mobility and the equilibrium to out-of-equilibrium transition are, under any experimental conditions, fully interrelated. For thin films, it appears that the molecular mobility and Tg are affected differently by geometrical factors. PY - 2012 U6 - https://doi.org/10.1039/c2sm25419k SN - 1744-683X VL - 8 IS - 19 SP - 5119 EP - 5122 PB - RSC Publ. CY - Cambridge AN - OPUS4-25805 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Rauchegger, Christian A1 - Schröder, Volkmar A1 - Lohse, Volkmar A1 - Schmidt, Dirk A1 - Thévenin, Dominique T1 - Release and Dispersion of Heavy Gases - Experimental Results and Numercial Simulations T2 - 8th Global Congress on Process Safety (GCPS) CY - Houston, TX, USA DA - 2012-04-01 PY - 2012 AN - OPUS4-25806 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Grunewald, Thomas T1 - Zündmechanismen nichtelektrischer Zündgefahren T2 - Explosionsschutz an Hebezeugen CY - Essen, Germany DA - 2012-03-27 PY - 2012 AN - OPUS4-25807 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Schalau, Bernd A1 - Ballenweg, R. A1 - Rubens, T1 - Quellterme bei Sprays und Lacken T2 - Berechnung von Quelltermen bei störfallbedingter Stoff- und Energiefreisetzung in der Prozessindustrie CY - Frankfurt am Main, Germany DA - 2012-03-08 PY - 2012 AN - OPUS4-25808 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Schalau, Bernd T1 - Auswirkungsbetrachtung für den Bruch einer Erdgashochdruckleitung T2 - Vermeidung katastrophaler Umweltschäden - Schadensbegrenzung bei Dennoch/Exeptionellen Störfällen CY - Wangerooge, Germany DA - 2012-04-22 PY - 2012 AN - OPUS4-25809 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Auersch, Lutz T1 - Erschütterungsminderung der besohlten Schwelle, Rechenergebnisse zur Auswahl einer Teststruktur T2 - RIVAS WP 3.2 Meeting CY - Berlin, Germany DA - 2012-02-29 PY - 2012 AN - OPUS4-25780 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Auersch, Lutz T1 - Minderung von Eisenbahnerschütterungen - Vergleich verschiedener besohlter Schwellen T2 - RIVAS WP 3.2 Meeting CY - Frankfurt am Main, Germany DA - 2012-03-29 PY - 2012 AN - OPUS4-25781 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Auersch, Lutz T1 - Mitigation measures for slab tracks - analysis of elastically supported wide sleepers on asphalt slabs T2 - RIVAS WP 3.4 Meeting CY - Berlin, Germany DA - 2012-04-17 PY - 2012 AN - OPUS4-25782 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Auersch, Lutz T1 - Die Berechnung erschütterungsmindernder Eisenbahnfahrwege mit der kombinierten Finite-Element-Randelement-Methode T2 - VDI-Tagung Baudynamik CY - Kassel, Germany DA - 2012-04-25 PY - 2012 AN - OPUS4-25783 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Thöns, Sebastian T1 - SHM for Infrastructures - Developments in Science and Industry in Europe T2 - Neostrain Workshop on the Design and Optimisation of Monitoring CY - Kraków, Poland DA - 2012-04-19 PY - 2012 AN - OPUS4-25784 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Beckmann, Jörg A1 - Redmer, Bernhard A1 - Ewert, Uwe T1 - Röntgen an Schienen T2 - 7. Fachtagung ZfP im Eisenbahnwesen CY - Wittenberge, Germany DA - 2012-03-20 PY - 2012 AN - OPUS4-25785 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Beckmann, Jörg A1 - Fratzscher, Daniel A1 - von Chrzanowski, Lars A1 - Ewert, Uwe T1 - Spectral and Spatial Nondestructive Examination of Dielectric Materials with THz Time Domain Spectroscopy T2 - International Forum on THz Spectroscopy and Imaging 5'th Workshop on THz Technology CY - Kaiserslautern, Germany DA - 2012-03-06 PY - 2012 AN - OPUS4-25786 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Tuaev, X. A1 - Paraknowitsch, J.P. A1 - Illgen, René A1 - Thomas, A. A1 - Strasser, P. T1 - Nitrogen-doped coatings on carbon nanotubes and their stabilizing effect on Pt nanoparticles N2 - A homogeneous coating of nitrogen-doped carbon on carbon nanotubes is performed using ionic liquids. The N-doped material is employed as a support for nanoparticles. Electrochemical degradation behavior is monitored in situ and compared to an unmodified material. The strongly enhanced stability is explained on the basis of a Pt–nitrogen interaction. PY - 2012 U6 - https://doi.org/10.1039/c2cp40760d SN - 1463-9076 SN - 1463-9084 VL - 14 IS - 18 SP - 6444 EP - 6447 PB - The Royal Soc. of Chemistry CY - Cambridge AN - OPUS4-25787 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Purohit, Purv A1 - Schönhals, Andreas T1 - Structure-property relationship of Nanocomposites based on Polylactide and Layered Double Hydroxid T2 - DPG Frühjahrstagung 2012 CY - Berlin, Germany DA - 2012-03-26 PY - 2012 AN - OPUS4-25788 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Hempel, M. A1 - Ziegler, Mathias A1 - Schwirzke-Schaaf, S. A1 - Tomm, J.W. A1 - Jankowski, D. A1 - Schröder, D. T1 - Spectroscopic analysis of packaging concepts for high-power diode laser bars N2 - Double-side cooled high-power diode laser bars packaged by different techniques on different types of passive heat sinks are analyzed in terms of packaging-induced strain. Reference data from standard devices being single-side cooled only and packaged by conventional soft and hard soldering are also presented. Thermal profiling across the devices complements the results. The most suitable packaging architecture and technique for double-side cooled bars is identified. Measurements of the laser emission near field and electroluminescence pattern provide direct reference to the functionality of the devices. Furthermore, a type of cross calibration of the methods used for strain analysis is made, since all techniques are applied to the same set of bars. This involves micro photoluminescence, micro Raman, and degree-of-polarization electroluminescence spectroscopy. KW - Spectroscopy KW - Semiconductor laser KW - Thermography KW - High-power diode lasers KW - Non-destructive testing PY - 2012 U6 - https://doi.org/10.1007/s00339-012-6799-4 SN - 0947-8396 VL - 107 IS - 2 SP - 371 EP - 377 PB - Springer CY - Berlin AN - OPUS4-25789 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Purohit, Purv A1 - Wang, D.-Y. A1 - Emmerling, Franziska A1 - Thünemann, Andreas A1 - Heinrich, G. A1 - Schönhals, Andreas T1 - Arrangement of layered double hydroxide in a polyethylene matrix studied by a combination of complementary methods N2 - Organically modified ZnAl Layered Double Hydroxides (ZnAl-LDH) was synthesized and melt blended with polyethylene to obtain nanocomposites. The resulting morphology was investigated by a combination of Differential Scanning Calorimetry (DSC), Small and Wide-angle X-ray scattering (SAXS and WAXS) and dielectric relaxation spectroscopy (DRS). The arrangement (intercalation) of polyethylene chains between LDH stacks was investigated employing SAXS. The homogeneity of the nanocomposites and average number of stack size (4–6 layers) were determined using scanning microfocus SAXS (BESSY II). DSC and WAXS results show that the degree of crystallinity decreases linearly with the increasing content of LDH. The extrapolation of this dependence to zero estimates a limiting concentration of ca. 45% LDH where the crystallization of PE is completely suppressed by the nanofiller. The dielectric spectra of the nanocomposites show several relaxation processes which are discussed in detail. The intensity of the dynamic glass transition (β-relaxation) increases with the concentration of LDH. This is attributed to the increasing concentration of the exchanged anion sodium dodecylbenzene sulfonate (SDBS) which is adsorbed at the LDH layers. Therefore, a detailed analysis of the β-relaxation provides information about the structure and the molecular dynamics in the interfacial region between the LDH layers and the polyethylene matrix which is otherwise dielectrically invisible (low dipole moment). KW - Dielectric spectroscopy KW - Polyethylene nanocomposites KW - Layered double hydroxides PY - 2012 U6 - https://doi.org/10.1016/j.polymer.2012.03.041 SN - 0032-3861 SN - 1873-2291 VL - 53 IS - 11 SP - 2245 EP - 2254 PB - Springer CY - Berlin AN - OPUS4-25810 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Schmidt, Martin A1 - Mütterlein, Rainer A1 - Wehrstedt, Klaus-Dieter A1 - Scheid, Marc A1 - Böhme, Thilo A1 - Bulin, Michael A1 - Seifert, Alexander T1 - Brenn- und Explosionskenngrößen von Stäuben - Erarbeitung von Bandbreiten und Integration in den GSBL T2 - Behörden-Erfahrungsaustausch CY - Berlin, Germany DA - 2012-04-23 PY - 2012 AN - OPUS4-25811 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Taffe, Alexander A1 - Kind, Thomas T1 - Einsatz von zerstörungsfreien Prüfverfahren bei der Bestandsaufnahme von Bauwerken T2 - Brücken- und Ingenieurbautagung 2012 CY - Munich, Germany DA - 2012-04-25 PY - 2012 AN - OPUS4-25812 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Nolze, Gert T1 - EBSD-Untersuchungen am Kieler Meteorit T2 - 4. Deutsches Meteoriten-Kolloquium, Universität Kiel CY - Kiel, Germany DA - 2012-04-27 PY - 2012 AN - OPUS4-25813 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Nolze, Gert T1 - Gefüge-Untersuchungen am Meteoriten von Erxleben T2 - 3. Deutsches Meteoriten-Kolloquium CY - Erxleben, Germany DA - 2012-04-14 PY - 2012 AN - OPUS4-25814 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Heyn, Andreas T1 - Elektrochemisches Rauschen als Methode für die Korrosionsüberwachung T2 - Corrosion Monitoring - Grundlagen und praktische Anwendungen CY - Frankfurt am Main, Germany DA - 2012-04-24 PY - 2012 AN - OPUS4-25815 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Burkert, Andreas A1 - Ebell, Gino A1 - Lehmann, Jens T1 - Überwachung der Korrosion im Stahlbetonbau T2 - Corrosion Monitoring - Grundlagen und praktische Anwendungen CY - Frankfurt am Main, Germany DA - 2012-04-24 PY - 2012 AN - OPUS4-25816 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Burkert, Andreas A1 - Lehmann, Jens T1 - Messung von Potentialen und Strömen bei der Korrosion T2 - Corrosion Monitoring - Grundlagen und praktische Anwendungen CY - Frankfurt am Main, Germany DA - 2012-04-24 PY - 2012 AN - OPUS4-25817 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Wilrich, Cordula T1 - UN-GHS: Current work on Section 9 of the Safety Data Sheet T2 - IGUS EOS Meeting (International Group of Experts on the Explosion Risks of unstable Substances, Energetic and oxidising Substances) CY - Berlin, Germany DA - 2012-05-07 PY - 2012 AN - OPUS4-25818 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - von Oertzen, Alexander T1 - Explosivstoffprüfung - Ringversuche der Benannten Stellen T2 - 34. Informationstagung Sprengtechnik CY - Siegen, Germany DA - 2012-04-13 PY - 2012 AN - OPUS4-25819 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Mishra, Kirti Bhushan A1 - Wehrstedt, Klaus-Dieter T1 - CFD Prediction of spill characteristics of liquid organic peroxides T2 - IGUS EOS Meeting CY - Berlin, Germany DA - 2012-05-07 PY - 2012 AN - OPUS4-25850 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Wehrstedt, Klaus-Dieter A1 - Michael-Schulz, Heike T1 - Peroxyacetic acids - Properties and Classification T2 - IGUS EOS Meeting CY - Berlin, Germany DA - 2012-05-07 PY - 2012 AN - OPUS4-25851 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Wehrstedt, Klaus-Dieter A1 - Michael-Schulz, Heike T1 - Desensitized Explosives (Nitrocellulose Formulations) T2 - IGUS Joint EOS/EPP Meeting CY - Berlin, Germany DA - 2012-05-09 PY - 2012 AN - OPUS4-25852 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Wehrstedt, Klaus-Dieter T1 - EOS Working Group Chairman's Progress Report of the Last Triennium T2 - IGUS Plenary Meeting CY - Berlin, Germany DA - 2012-05-09 PY - 2012 AN - OPUS4-25853 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Knorr, Annett T1 - Synthese einer hochenergetischen Substanz mittels kontinuierlicher Reaktionsführung T2 - Erfahrungsaustausch: Sonochemie in Mikroreaktoren CY - Rostock, Germany DA - 2012-05-10 PY - 2012 AN - OPUS4-25854 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Zoëga, Andreas A1 - Stoppel, Markus A1 - Feldmann, Rüdiger T1 - Automatisierte Multisensorsysteme zur Zustandsbewertung T2 - Fachtagung Bauwerksdiagnose 2012, Praktische Anwendungen Zerstörungsfreier Prüfungen und Zukunftsaufgaben CY - Berlin, Germany DA - 2012-02-23 PY - 2012 AN - OPUS4-25855 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Lehnik-Habrink, Petra A1 - Hein, Sebastian T1 - Analyse organische Schadstoffe in Waldböden T2 - Jahrestagung Gutachterausschuss "Forstliche Analytik" CY - Sankt Wendel, Germany DA - 2012-04-24 PY - 2012 AN - OPUS4-25856 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Schiel, D. A1 - Philipp, Rosemarie T1 - Joint Research Project ENV08 "Traceable Measurements for Monitoring Critical Pollutants under the European Water Framework Directive (WFD) 2000/60/EC T2 - CCQM, IAWG Meeting CY - Paris, France DA - 2012-04-16 PY - 2012 AN - OPUS4-25857 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Philipp, Rosemarie A1 - Riedel, Juliane A1 - Proske, Matthias A1 - Hein, Sebastian A1 - Koch, Matthias T1 - CCQM-K95 Mid-polarity pesticides in tea, BAM methods and results T2 - CCQM, OAWG Meeting CY - Paris, France DA - 2012-04-16 PY - 2012 AN - OPUS4-25858 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Gonzales-Gago, A. A1 - Philipp, Rosemarie A1 - Pröfrock, D. A1 - Prange, A. A1 - Alonso, J. I. G. A1 - Ignacio, J A1 - Swart, C. A1 - Schiel, D. T1 - New approaches for the traceable determination of PBDEs (in coastal water samples) according to the Water Framework Directive (WFD) T2 - 6th SETAC (Society of Environmental Toxicology and Chemistry) World Congress CY - Berlin, Germany DA - 2012-05-20 PY - 2012 AN - OPUS4-25859 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Reisgen, U. A1 - Olschok, S. A1 - Backhaus, A. A1 - Rethmeier, Michael A1 - Gumenyuk, Andrey A1 - Tölle, Florian T1 - Reduction of weld residual stresses with the electron beam T2 - 2nd International electron beam welding conference (IEBW) CY - Aachen, Germany DA - 2012-03-26 PY - 2012 SN - 978-3-87155-299-1 N1 - Serientitel: DVS-Berichte – Series title: DVS-Berichte VL - 285 SP - 128 EP - 132 PB - DVS Media GmbH CY - Düsseldorf AN - OPUS4-26110 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Gay-Fraret, J. A1 - Ardissone, S. A1 - Kambara, K. A1 - Broughton, William J. A1 - Deakin, W.J. A1 - Le Quéré, A. T1 - Cyclic-Beta-glucans of Rhizobium (Sinorhizobium) sp. strain NGR234 are required for hypo-osmotic adaption, motility, and efficient symbiosis with host plants N2 - Cyclic-β-glucans (CβG) consist of cyclic homo-polymers of glucose that are present in the periplasmic space of many Gram-negative bacteria. A number of studies have demonstrated their importance for bacterial infection of plant and animal cells. In this study, a mutant of Rhizobium (Sinorhizobium) sp. strain NGR234 (NGR234) was generated in the cyclic glucan synthase (ndvB)-encoding gene. The great majority of CβG produced by wild-type NGR234 are negatively charged and substituted. The ndvB mutation abolished CβG biosynthesis. We found that, in NGR234, a functional ndvB gene is essential for hypo-osmotic adaptation and swimming, attachment to the roots, and efficient infection of Vigna unguiculata and Leucaena leucocephala. KW - Cyclic Beta-(1,2)-glucans KW - Legumes KW - Osmotic adaption KW - Swimming KW - Nodulation KW - ndvB PY - 2012 U6 - https://doi.org/10.1111/j.1574-6968.2012.02595.x SN - 0378-1097 SN - 1574-6968 VL - 333 IS - 1 SP - 28 EP - 36 PB - Wiley-Blackwell CY - Malden, Mass., USA AN - OPUS4-26111 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Durmaz, V. A1 - Weber, M. A1 - Becker, Roland T1 - How to simulate affinities for host-guest systems lacking binding mode information: application to the liquid chromatographic separation of hexabromocyclododecane stereoisomers N2 - A novel approach for the simulation of host.guest systems by systematically scanning the host moleculefs orientations within the guest cavity is presented along with a thermodynamic strategy for determining preferential binding modes and corresponding optimal interaction energies between host and guest molecules. By way of example, the elution order of hexabromocyclododecane stereoisomers from high performance liquid chromatography separation on a permethylated β-cyclcodextrin stationary phase has been computed using classical molecular dynamics simulations with the explicit solvents water and acetonitrile. Comparison of estimated with experimental separation data reveals remarkable squared coefficients of correlation with R2=0.87 and a very high correlation RLOO2 . 0:72 using the leaveone-out cross-validation method and water as solvent. In particular, the approach presented shapes up as very robust in terms of the evaluated time range under consideration, reflecting well thermodynamic equilibria. These and further observations correlating with experimental results suggest the suitability of the underlying force fields and our multi-mode approach for the estimation of relative binding affinities for host–guest systems with unknown binding modes. KW - Molecular simulation KW - Molecular dynamics KW - Binding affinity KW - Elution order KW - Beta-cyclodextrin PY - 2012 U6 - https://doi.org/10.1007/s00894-011-1239-5 SN - 1610-2940 SN - 0948-5023 VL - 18 IS - 6 SP - 2399 EP - 2408 PB - Springer CY - Berlin; Heidelberg AN - OPUS4-26112 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Torge, Manfred T1 - Evaluierung der Wirksamkeit von Außenschutzverglasungen in Kirchen KW - Klimamessung KW - Glaskorrosion KW - Glasmalerei PY - 2012 SN - 0177-3550 SN - 0343-1290 SN - 0343-1118 VL - 53 IS - 3 SP - 79 EP - 84 PB - Fraunhofer IRB-Verl. CY - Stuttgart AN - OPUS4-26115 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Stutz, C. A1 - Bilecka, I. A1 - Thünemann, Andreas A1 - Niederberger, M. A1 - Börner, H.G. T1 - Superparamagnetic core-shell nanoparticles as solid supports for peptide synthesis N2 - Functional superparamagnetic core–shell nanoparticles are synthesized by a microwave assisted route and can be used as colloidal supports for peptide synthesis in 'quasi solution'. KW - Nanotechnology KW - Small-angle X-ray scatering KW - SAXS PY - 2012 U6 - https://doi.org/10.1039/c2cc33492e SN - 0022-4936 SN - 0009-241x SN - 1359-7345 SN - 1364-548x VL - 48 IS - 57 SP - 7176 EP - 7178 PB - Royal Society of Chemistry CY - Cambridge AN - OPUS4-26116 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Thöns, Sebastian A1 - McMillan, D. T1 - Condition monitoring benefit for offshore wind turbines T2 - PMAPS 2012 - 12th International conference on Probabilistic Methods Applied to Power Systems CY - Istanbul, Turkey DA - 2012-06-10 KW - Condition monitoring KW - Offshore wind KW - Operation KW - Risk KW - Life cycle KW - Cost KW - Cost benefit analysis KW - Offshore wind turbine KW - Operation management KW - Structural integrity management PY - 2012 SP - 37 EP - 42 AN - OPUS4-26117 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - GEN A1 - Biyikal, Mustafa A1 - Hecht, Mandy A1 - Martínez-Mánez, Ramon A1 - Rurack, Knut A1 - Sancenón, F. ED - Gale, P.A. ED - Steed, J.W. T1 - Supramolecular hybrid nanomaterials as prospective sensing platforms N2 - Supramolecular interactions are vital processes in many chemical sensors, biochemical assays, and other analytical detection schemes. On the background of the current, rapidly developing, and constantly changing requirements for (bio)analytical techniques, the classical molecular host is increasingly overburdened to accomplish a specific analytical task with the desired selectivity and sensitivity. Instead, other signaling strategies have to be conceived that overcome the limits in signal output, dynamic range, or compound targeting, which are imminent to various traditional methods. A very promising approach is the combination of concepts of supramolecular chemistry with nanostructured or nanoscopic inorganic materials, that is, the development of hybrid sensor materials. Such hybrids often lead to improved functionality and enhanced performance, and the present chapter discusses the contributory features in relation to the major aspects, which are related to the enhanced coordination by the preorganization of binding sites, signal amplification by the preorganization on surfaces, aggregation‐mediated signaling, surface‐modification‐based signaling, the tuning of selectivity through polarity and size, and gated signaling. KW - Supramolekulare Chemie KW - Optische Sonden KW - Nanotechnologie KW - Hybridmaterialien KW - Fluorescence KW - Hybrid nanomaterials KW - Optical sensors KW - Redox sensors KW - Supramolecular chemistry PY - 2012 SN - 978-0-470-74640-0 U6 - https://doi.org/10.1002/9780470661345.smc199 SP - 3669 EP - 3698 PB - John Wiley & Sons AN - OPUS4-26118 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Hodoroaba, Vasile-Dan A1 - Rackwitz, Vanessa T1 - Reference materials for the performance check and specification of energy dispersive X-ray spectrometers (EDS) in electron probe microanalysis (EPMA) T2 - European Conference on X-Ray Spectrometry CY - Vienna, Austria DA - 2012-06-18 PY - 2012 AN - OPUS4-26119 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Marotzke, Christian A1 - Basan, Ricardo T1 - Fracture toughness of fiber reinforced composites under transverse loading N2 - The debonding of a fiber in a glass fiber / epoxy composite under transverse loading is analysed. The stress field in the interface as well as the energy release rate are analysed for various fiber volume fractions between 5% and 85%. The circumferential propagation of an interface crack in a hexagonal fiber array is studied. The analysis is performed by a finite element simulation under plane stress conditions. The stress distribution during crack propagation is calculated for different crack phases. The crack starts under dominating mode I stresses. After propagating some 60° the mode II part reaches a maximum while the mode I part vanishes and the crack closes. The further crack propagation is driven by mode II stresses only. In addition, the stress transfer into the neighbouring fibers during debonding is studied. T2 - SAMPE Europe 33rd International conference SEICO 12 CY - Paris, France DA - 2012-03-26 KW - Composites KW - Fracture toughness KW - Interface PY - 2012 SN - 978-3-9523565-5-5 IS - Session 5B / Paper 13 SP - 309 EP - 314 AN - OPUS4-26070 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Fenger, A. A1 - Fertitta, E. A1 - Kirmse, H. A1 - Thünemann, Andreas A1 - Rademann, K. T1 - Size dependent catalysis with CTAB-stabilized gold nanoparticles N2 - CTAB-stabilized gold nanoparticles were synthesized by applying the seeding-growth approach in order to gain information about the size dependence of the catalytic reduction of p-nitrophenol to p-aminophenol with sodium borohydride. Five different colloidal solutions of stabilized gold nanoparticles have been characterized by TEM, AFM, UV-Vis, SAXS, and DLS for their particle size distributions. Gold nanoparticles (mean sizes: 3.5, 10, 13, 28, 56 nm diameter) were tested for their catalytic efficiency. Kinetic data were acquired by UV-Vis spectroscopy at different temperatures between 25 and 45 °C. By studying the p-nitrophenol to p-aminophenol reaction kinetics we determined the nanoparticle size which is needed to gain the fastest conversion under ambient conditions in the liquid phase. Unexpectedly, CTAB-stabilized gold nanoparticles with a diameter of 13 nm are most efficient. KW - Nanoparticle KW - Small-angle X-ray scattering KW - SAXS PY - 2012 U6 - https://doi.org/10.1039/c2cp40792b SN - 1463-9076 SN - 1463-9084 VL - 14 IS - 26 SP - 9343 EP - 9349 PB - The Royal Soc. of Chemistry CY - Cambridge AN - OPUS4-26071 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Casse, O. A1 - Shkilnyy, A. A1 - Linders, J. A1 - Mayer, C. A1 - Häussinger, D. A1 - Völkel, A. A1 - Thünemann, Andreas A1 - Dimova, R. A1 - Cölfen, H. A1 - Meier, W. A1 - Schlaad, H. A1 - Taubert, A. T1 - Solution behavior of double-hydrophilic block copolymers in dilute aqueous solution N2 - The self-assembly of double-hydrophilic poly(ethylene oxide)–poly(2-methyl-2-oxazoline) diblock copolymers in water has been studied. Isothermal titration calorimetry, small-angle X-ray scattering, and analytical ultracentrifugation suggest that only single polymer chains are present in solution. In contrast, light scattering and transmission electron microscopy detect aggregates with radii of ca. 100 nm. Pulsed field gradient NMR spectroscopy confirms the presence of aggregates, although only 2% of the polymer chains undergo aggregation. Water uptake experiments indicate differences in the hydrophilicity of the two blocks, which is believed to be the origin of the unexpected aggregation behavior (in accordance with an earlier study by Ke et al. [Macromolecules2009, 42, 5339–5344]). The data therefore suggest that even in double-hydrophilic block copolymers, differences in hydrophilicity are sufficient to drive polymer aggregation, a phenomenon that has largely been overlooked or ignored so far. KW - Nanotechnology KW - Small-angle X-ray scatering KW - SAXS PY - 2012 U6 - https://doi.org/10.1021/ma300621g SN - 0024-9297 SN - 1520-5835 VL - 45 IS - 11 SP - 4772 EP - 4777 PB - American Chemical Society CY - Washington, DC AN - OPUS4-26072 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Nie, Yaru A1 - Hübert, Thomas T1 - Surface modification of carbon nanofibers by glycidoxysilane for altering the conductive and mechanical properties of epoxy composites N2 - Carbon nanofibers (CNFs) were functionalized with 3-glycidoxypropyltrimethoxysilane and dispersed into epoxy resin. The chemical modification of CNFs was confirmed by FTIR, SEM, EDX and TGA measurements. After silanization, FTIR showed the existance of epoxy ring; EDX detected Si element; while TGA indicated 1.1 wt.% Si on CNFs. Mechanical properties were analyzed by DMA. Silanized CNFs/epoxy composites demonstrated improved dispersion of CNFs in the matrix, and an enhancement of storage modulus for about 20% compared to the neat matrix, which indicated that the modification of CNFs improved the adhesion between fillers and matrices. DC electrical conductivity of CNFs was reduced about 7-fold compared to the original CNFs due to the silane coating. Accordingly, the composites containing silanized CNFs also had lower electrical conductivity than those containing original CNFs. In spite of decreased electrical conductivity, thermal conductivity of silanized CNFs/epoxy composites was increased due to the surface modification of CNFs. KW - A. Polymer-matrix composites (PMCs) KW - B. Mechanical properties KW - B. Electrical properties KW - B. Thermal properties PY - 2012 U6 - https://doi.org/10.1016/j.compositesa.2012.03.025 SN - 1359-835X VL - 43 IS - 8 SP - 1357 EP - 1364 PB - Elsevier CY - Oxford AN - OPUS4-26073 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Trela, Christiane A1 - Kind, Thomas A1 - Schubert, Marcus T1 - Positioning accuracy of an automatic scanning system for GPR measurements on concrete structures T2 - 14th International conference on ground penetrating radar - GPR 2012 CY - Shanghai, China DA - 2012-06-04 KW - Automated scanning systems KW - Accuracy of positioning KW - Ground penetration radar PY - 2012 SN - 978-1-4673-2663-6 VL - I SP - 309 EP - 313 AN - OPUS4-26074 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Schmidt, Wolfram A1 - Hirya, N.N.M. A1 - Bjegovic, D. A1 - Uzoegbo, H.C. A1 - Kumaran, S.G. T1 - Cement technology in sub-Saharan Africa-practical and scientific experiences N2 - Sub-Saharan Africa is populated by more than half a billion people, and rapid urbanization is creating challenges in the areas of housing, roads, railways, power supply, dams and water pipelines — aspects of infrastructure that are critical to the well being of the population. This situation indicates that cement and concrete will play a major role in the future construction technology in Africa, despite the fact that it does not have a long-lasting tradition over most of the continent. Although the continent is rich in natural resources for the production of mineral binder systems, many sub-Saharan African countries exhibit challenging boundary conditions, that have to be well understood in order to use cement and concrete technologies in a sustainable and reasonable way. KW - Africa KW - Cement KW - Technology transfer KW - SPIN PY - 2012 SN - 0002-7812 VL - 91 IS - 5 SP - 52 EP - 56 PB - American Ceramic Society CY - Westerville, Ohio AN - OPUS4-26075 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - RPRT A1 - Böhme, Thilo A1 - Bulin, Michael A1 - Scheid, Marc A1 - Schmidt, Martin A1 - Seifert, Alexander A1 - Wehrstedt, Klaus-Dieter T1 - Festlegung relevanter sicherheitstechnischer Kenngrößen von Stäuben für den Explosionsschutz und Erarbeitung der zugehörigen Bandbreiten auf der Grundlage vorhandener Daten zur Aufnahme in den GSBL N2 - Ziel des F&E-Vorhabens des GSBL (BAM Vh 2520) war die Erarbeitung von Datensätzen auf der Grundlage bereits bestehender Staubdaten (für Datenbasis siehe Abschnitt 4) und die Übergabe der erarbeiteten Datensätze in elektronischer Form an den GSBL bis spätestens 31.05.2011. Der entsprechende Forschungs- und Entwicklungsvertrag trat am 01.08.2009 in Kraft. Für die Erarbeitung der Datensätze mussten neuartige Konzepte entwickelt werden (siehe Abschnitt 3.5; Abschnitt 3.3 gibt eine Einführung in das Staub-Fachgebiet und behandelt die Besonderheit von Stäuben). Aufgrund von Schwierigkeiten bei der Auswertung und bei der Zusammenstellung der Daten, die erst im Verlaufe des Projekts erkannt wurden, hat es beträchtliche Verzögerungen bei der Erstellung der Datensätze gegeben. Dies führte zu der Feststellung, dass eine Laufzeitverlängerung des Projekts notwendig war. Im Mai 2011 wurde daher ein entsprechender Antrag beim Auftraggeber gestellt. Der Antrag auf kostenneutrale Laufzeitverlängerung führte schließlich zu einer Änderung des ursprünglichen Forschungs- und Entwicklungsvertrags. Der Änderungsvertrag sah eine Verlängerung des Projekts bis zum 30.04.2012 vor. Um die Datensätze im GSBL abbilden zu können, war es auch erforderlich, eine adäquate Datenstruktur zu entwerfen und diese im GSBL zu implementieren. Die Bekanntgabe der zur Abbildung der Datensätze notwendigen Struktur erfolgte am 11.01.2011 per E-Mail (EXCELDatei gsbldbdir3_23_0029)2. Veränderungen bzw. Präzisierungen dieser Datenstruktur wurden dem GSBL am 19.01.2011 und am 28.01.2011 mitgeteilt, ebenfalls per E-Mail3. Am 19.10.2011 erfolgte eine weitere Änderung, die die sogenannte Nachschlagetabelle betrifft: Der Textinhalt der Tabelle T_STAUBM lautet nun "Auswertung vorhandener Datenkollektive durch Experten-Team." (ursprünglicher Wortlaut: "Auswertung vorhandener Datenkollektive durch Experten"). Die Änderung geht auf einen Wunsch des GSBL-Begleitkreises zurück, der am 07.10.2011 auf der in der BAM stattgefundenen Besprechung vorgebracht wurde. KW - Sicherheitstechnische Kenngrößen von Stäuben KW - Bandbreiten KW - Explosionsschutz KW - GSBL KW - Datenbank PY - 2012 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:b43-260765 SN - 978-3-9815134-0-0 IS - Abschlussbericht SP - 1 EP - 129 PB - Bundesanstalt für Materialforschung und -prüfung (BAM) CY - Berlin AN - OPUS4-26076 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Hüsken, Götz A1 - Brouwers, H.J.H. T1 - On the early-age behavior of zero-slump concrete N2 - This paper presents experimental investigations and analyses on the early-age-behavior of zero-slump concrete, such as compaction behavior and green-strength. First, the influence of the granulometric properties of the fines is discussed in detail. For this purpose, the early-age behavior of two different fines (quartz flour and fly ash) is investigated by means of the intensive compaction test (IC-test). The tests on the influence of the fines focus on effects caused by differences in the particle shape and the use of a plasticizing admixture. The conducted tests on the compaction behavior of the fines and their corresponding green-strength are extended to continuously graded granular mixes. Here, the influence of optimized particle packing on the early-age behavior is presented and a comparison on the basis of the aforementioned quartz flour and fly ash is made. In this consideration, experimental investigations on the early-age behavior of a zero-slump concrete mix and possible effects on the hardened concrete properties are included. KW - Zero-slump concrete (A) KW - Green-strength (C) KW - Compaction behavior (A) KW - Intensive compaction test (C) PY - 2012 U6 - https://doi.org/10.1016/j.cemconres.2011.11.007 SN - 0008-8846 SN - 1873-3948 VL - 42 IS - 3 SP - 501 EP - 510 PB - Pergamon Press CY - New York, NY AN - OPUS4-26078 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Quercia, G. A1 - Hüsken, Götz A1 - Brouwers, H.J.H. T1 - Water demand of amorphous nano silica and its impact on the workability of cement paste N2 - This paper addresses the characterization of six different amorphous silica samples with respect to their application in cement paste. Different mixes are compared and analyzed using the mini spread-flow test. Also the granular properties, different void fraction states of packing and distribution moduli q are analyzed and compared using a mix design tool. A deformation coefficient is derived from the spread-flow test, which correlates with the value of specific surface area computed from the particle size distribution, and intrinsic density of the samples. Finally, the thickness of a constant water layer of 25 nm around the particles is computed at the onset of flowing. The granular analysis demonstrated that it is possible to decrease the water demand of the cement paste when nanoparticles are added and the resulting grading follows the modified Andreasen and Andersen curve (q = 0.5), and the concentration of nano silica is less than 5% bwoc. KW - Nano silica (D) KW - Particle size distribution (B) KW - Surface area (B) KW - Water demand (A) KW - Workability (A) PY - 2012 U6 - https://doi.org/10.1016/j.cemconres.2011.10.008 SN - 0008-8846 SN - 1873-3948 VL - 42 IS - 2 SP - 344 EP - 357 PB - Pergamon Press CY - New York, NY AN - OPUS4-26079 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Huismann, Sven A1 - Korzen, Manfred A1 - Rogge, Andreas T1 - Entwicklung und Validierung eines allgemeinen Rechenverfahrens für Stahlbetonstützen aus hochfestem Beton unter Brandbeanspruchung N2 - Ausgehend von einer kritischen Analyse der Materialkennwerte für normalfesten (NFB) und hochfesten Beton (HFB) im Eurocode 2 wurden in grundlegenden Untersuchungen an der BAM exemplarisch für einen HFB die thermomechanischen Materialkennwerte bestimmt, um auf der Basis eines geeigneten Materialmodells das Verhalten von Stahlbetonstützen aus HFB unter Brandbeanspruchung zu simulieren. Die Validierung des Modells erfolgte mittels großmaßstäblicher Brandversuche an belasteten Stahlbetonstützen aus dem gleichen HFB wie in den Materialuntersuchungen. Es konnte gezeigt werden, dass die Festigkeit als charakteristischer Parameter des Materialmodells zwingend auf der Basis instationärer Versuche – und nicht aus stationären Versuchen wie bei NFB üblich – bestimmt werden muss. Mit den in vorgeschlagenen Materialbeziehungen für HFB wird das Tragverhalten der untersuchten Stützen dagegen deutlich überschätzt, was sich in den numerischen Simulationen insbesondere durch zu geringe Verformungen äußert.------------------------------------------------------------------------------------------------------ Development and Validation of an Advanced Calculation Model for High Strength Concrete Columns Subjected to Fire Loading Following a critical analysis of the material parameters of normal strength (NSC) and high strength concrete (HSC) presented in Eurocode 2 the thermo-mechanical material parameters of one representative HSC were identified. Using these parameters and based on an appropriate material model the behavior of HSC columns was simulated. The validation of the model was realized through real scale fire resistance tests on loaded columns of the same type of HSC as in the material identification tests. It was found that the strength as a characteristic parameter of the material model has to be identified on the basis of transient creep tests and not of stationary tests, respectively as realized usually for NSC. It could be shown that the structural behavior of the tested columns is overestimated if the numerical simulations are based on the material properties of HSC as proposed in. This feature is expressed especially through insufficient displacements. KW - Brandschutz KW - Verformungsverhalten KW - Hochleistungsbeton KW - Nichtlineare Berechnungsverfahren KW - Modellierung KW - EC KW - Eurocode KW - Normen KW - Berechnungs- und Bemessungsverfahren KW - Normen/Vorschriften/Richtlinien KW - Brandschutz KW - Versuche KW - Eurocode KW - Hochfester Beton KW - Feuerwiderstandsdauer KW - Finite-Elemente-Methode PY - 2012 U6 - https://doi.org/10.1002/best.201200010 SN - 0005-9900 SN - 1437-1006 VL - 107 IS - 6 SP - 372 EP - 378 PB - Ernst CY - Berlin AN - OPUS4-26100 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Hong, Shuxian A1 - Lai Wai-Lok, Wallace A1 - Helmerich, Rosemarie T1 - Monitoring Accelerated Corrosion in Chloride Contaminated Concrete with Ground Penetrating Radar T2 - 14th International Conference on Ground Penetrating Radar (GPR 2012) CY - Shanghai, China DA - 2012-06-04 PY - 2012 AN - OPUS4-26101 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CHAP A1 - Vogl, Jochen A1 - Pritzkow, Wolfgang ED - Vanhaecke, F. ED - Degryse, P. T1 - Reference materials in isotopic analysis KW - ICPMS KW - IRM KW - Reference materials KW - Delta reference materials PY - 2012 SN - 978-3-527-32896-3 IS - Chapter 6 SP - 139 EP - 163 PB - Wiley-VCH Verlag GmbH & Co. KGaA CY - Weinheim AN - OPUS4-26102 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Beckmann, Jörg A1 - von Chrzanowski, Lars A1 - Fratzscher, Daniel A1 - Ewert, Uwe ED - Thompson, D. O. ED - Chimenti, D. E. T1 - Spectral and spatial nondestructive examination of dielectric materials with THz time domain spectroscopy N2 - A time domain spectrometer T-ray 2000® operating in the range of 0.2-2 THz was used for Time of Flight measurements. A series of ethanol water mixtures from 10% to 90% were produced subsequently filled in polystyrene cells and analyzed in the T-ray 2000 TDS system in the reflection mode. The reflectivity of the material liquid interface is strongly influenced by the ethanol concentration in water. The reciprocal reflection coefficient of the material liquid interface was found to be a useful discriminating feature for further Probably of Detection calculations which can be used for the performance evaluation of potential THz bottle scanners. THz pulse echo (PE) measurements were performed in comparison to the established ultra sound PE technique for flaw detection of plastics. Synthetic aperture reconstructions were applied for simulated data to reconstruct the flaw shape. The results were compared with B-scan images of a high density polyethylene (HDPE) test cylinder. Existing restrictions on the quality of the back projected images and limits of the existing model are discussed in detail. T2 - 38th Annual Review of Progress in Quantitative Nondestructive Evaluation CY - Burlington, VT, USA DA - 17.07.2011 KW - Terahertz time domain spectroscopy KW - Time of flight diffraction KW - Non destructive testing KW - Polymers KW - Probability of detection KW - Thz Tomography PY - 2012 SN - 978-0-7354-1013-8 U6 - https://doi.org/10.1063/1.4716279 SN - 0743-0760 SN - 0094-243X N1 - Serientitel: AIP conference proceedings – Series title: AIP conference proceedings VL - 31A IS - 1430 SP - 573 EP - 580 PB - American Institute of Physics CY - Melville, NY AN - OPUS4-26103 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Nitsche, Michael T1 - Die Entwicklung der Konformitätsbewertung in Deutschland T2 - VMPA Thementag CY - Bremen, Germany DA - 2012-06-19 PY - 2012 AN - OPUS4-26104 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Nusser, K. A1 - Mosbauer, T. A1 - Schneider, G.J. A1 - Brandt, K. A1 - Weidemann, Gerd A1 - Goebbels, Jürgen A1 - Riesemeier, Heinrich A1 - Göritz, D. T1 - Silica dispersion in styrene butadiene rubber composites studied by synchrotron tomography N2 - By means of synchrotron X-ray computed tomography, model composites consisting of silica and styrene–butadiene rubber were studied with a very high spatial resolution. By our analysis technique we were able to determine the nano- and micro dispersion from the experimental results by our numerical analysis. These results are discussed with respect to crucial advantages of the generically 3-dimensional tomography technique as compared to 2-dimensional methods. Our quantitative analysis of the 3d images demonstrates that in the case of our model composites the filler dispersion is good, independent on the filler concentration. Our new 3-dimensional results evidence that considering only 2-d pictures may lead to ambiguities that can lead to wrong conclusions. KW - X-ray tomography KW - Silica KW - Styrene butadiene rubber KW - Dispersion PY - 2012 U6 - https://doi.org/10.1016/j.jnoncrysol.2011.10.009 SN - 0022-3093 VL - 358 IS - 3 SP - 557 EP - 563 PB - North-Holland Publ. Co. CY - Amsterdam AN - OPUS4-26105 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Buchholz, Uwe A1 - Jaunich, Matthias A1 - Stark, Wolfgang A1 - Habel, Wolfgang A1 - Petersson, B.A.T. T1 - Acoustic data of cross linked polyethylene (XLPE) and cured liquid silicone rubber (LSR) by means of ultrasonic and low frequency DMTA N2 - Partial discharges may cause damage to electrical insulation of high voltage equipment. They initiate elastic waves in the insulating material, e.g. in the stress cone of an outdoor termination. Localisation of the origin of such elastic waves can help to predict serious damaging processes in the electrical insulation. In order to measure and evaluate the wave propagation effects in typical multilayered elastomeric structures, knowledge of the material properties is required. The propagating velocity and the attenuation of longitudinal waves are important parameters. Values for these quantities found in the literature were not appropriate. Therefore, for cross-linked polyethylene (XLPE) and cured liquid silicone rubber (LSR), the longitudinal wave velocity and the attenuation were evaluated in the temperature interval from -20°C to 50°C and in the frequency range from 200 kHz to 600 kHz using a two-sample ultrasound technique. The loss factor was determined from these measured quantities. Additionally, low frequency Dynamic Mechanical Thermal Analysis (DMTA) was applied to investigate LSR and XLPE in a temperature interval between -100 and 50°C and to check qualitatively the ultrasound data. KW - Acoustic propagation KW - Cross linked polyethylene insulation KW - Mechanical variables measurement KW - Silicone rubber PY - 2012 U6 - https://doi.org/10.1109/TDEI.2012.6180250 SN - 1070-9878 SN - 0018-9367 SN - 1558-4135 VL - 19 IS - 2 SP - 558 EP - 566 PB - Institute of Electrical and Electronics Engineers CY - New York, NY AN - OPUS4-26106 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Pelkner, Matthias A1 - Neubauer, Andreas A1 - Reimund, Verena A1 - Kreutzbruck, Marc ED - Thompson, D. O. ED - Chimenti, D. E. T1 - Local magnetization unit for GMR array based magnetic flux leakage inspection N2 - GMR sensors are increasingly used for magnetic surface inspection due to their high sensitivity and high spatial resolution. In case of simple planar or cylindrical shaped components, the GMR-based inspection procedure can be automated easily. We present GMR measurements of real fatigue cracks. In addition, we present a probe design using a local magnetization unit and commercially available GMR sensors. The design was carried out by means of finite-element method (FEM) simulations. Using the local probe we measured bearings containing artificial reference cracks of different depths and orientations. Cracks with a depth of 40 µm could be resolved with a signal-to-noise ratio better than 6. A further reduction of the measuring time can be obtained using a sensor array. For this purpose we present a study of the optimized size of the sensing GMR-layers for a NDE-adapted sensor array. The geometric sensor parameters were investigated through simulations of the magnetic flux leakage of surface cracks using an analytic model. T2 - 38th Annual Review of Progress in Quantitative Nondestructive Evaluation CY - Burlington, VT, USA DA - 2011-07-17 KW - GMR KW - Magnetic flux leakage KW - NDE KW - Sensor array PY - 2012 SN - 978-0-7354-1013-8 U6 - https://doi.org/10.1063/1.4716332 SN - 0743-0760 SN - 0094-243X N1 - Serientitel: AIP conference proceedings – Series title: AIP conference proceedings IS - 1430 SP - 1005 EP - 1012 PB - American Institute of Physics CY - Melville, NY AN - OPUS4-26107 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Hauswaldt, Sebastian A1 - Korzen, Manfred A1 - Hartmann, S. ED - Fontana, M. ED - Frangi, A. ED - Knobloch, M. T1 - A continuum-mechanical model for FE-simulations of steel constructions in fire T2 - SIF 2012 - 7th International conference on structures in fire CY - Zurich, Switzerland DA - 2012-06-06 KW - Constitutive equation KW - Viscoplasticity KW - Endochronic plasticity KW - UMAT KW - Finite element method KW - Fire resistance PY - 2012 U6 - https://doi.org/10.3929/ethz-a-007050197 SP - 439 EP - 448 CY - Zurich, Switzerland AN - OPUS4-26108 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Rouquerol, J. A1 - Baron, G. A1 - Denoyel, R. A1 - Giesche, H. A1 - Groen, J. A1 - Klobes, Peter A1 - Levitz, P. A1 - Neimark, A.V. A1 - Rigby, S. A1 - Skudas, R. A1 - Sing, K. A1 - Thommes, M. A1 - Unger, K. T1 - Liquid intrusion and alternative methods for the characterization of macroporous materials (IUPAC technical report) N2 - This document deals with the characterization of porous materials having pore widths in the macropore range of 50 nm to 500 µm. In recent years, the development of advanced adsorbents and catalysts (e.g., monoliths having hierarchical pore networks) has brought about a renewed interest in macropore structures. Mercury intrusion–extrusion porosimetry is a well-established method, which is at present the most widely used for determining the macropore size distribution. However, because of the reservations raised by the use of mercury, it is now evident that the principles involved in the application of mercury porosimetry require reappraisal and that alternative methods are worth being listed and evaluated. The reliability of mercury porosimetry is discussed in the first part of the report along with the conditions required for its safe use. Other procedures for macropore size analysis, which are critically examined, include the intrusion of other non-wetting liquids and certain wetting liquids, capillary condensation, liquid permeation, imaging, and image analysis. The statistical reconstruction of porous materials and the use of macroporous reference materials (RMs) are also examined. Finally, the future of macropore analysis is discussed. KW - Capillary condensation KW - Image analysis KW - IUPAC physical and biophysical chemistry division KW - Liquid intrusion KW - Macroporous materials KW - Mercury prorsimetry KW - Permeation KW - Pore size characterization KW - Reference porous materials KW - Statistical reconstruction of porous solids PY - 2012 U6 - https://doi.org/10.1351/PAC-REP-10-11-19 SN - 0033-4545 SN - 1365-3075 VL - 84 IS - 1 SP - 107 EP - 136 PB - Union CY - Research Triangle Park, NC AN - OPUS4-26109 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Heinrich, Hans-Joachim A1 - Kipphardt, Heinrich T1 - Application of methane as a gaseous modifier for the determination of silicon using electrothermal atomic absorption spectrometry N2 - For determination of silicon in aqueous solutions by electrothermal atomic absorption spectrometry methane/argon mixtures as a gaseous modifier were applied during the pyrolysis step to improve the analytical performance. The beneficial effects observed on thermal stabilization, signal enhancement and shape of absorbance signals were attributed to the thermal decomposition products of methane, which were hydrogen and carbon black (soot). Using a 5% CH4 mixture with argon, the optimized pyrolysis and atomization temperatures were 1350 °C and 2450 °C, respectively. A flushing step following the pyrolysis was mandatory to avoid background absorption and accelerated deposition of pyrolytic graphite. Characteristic masses of 50 and 30 pg were obtained for standard transversely heated graphite atomizer (THGA) tubes and end-capped THGA tubes, respectively, which were lower than with other previously applied modifiers. A limit of detection of 0.2 µg L- 1 (3 s, n = 10) has been obtained. In addition, this gaseous modifier did not contribute to contamination which often was significant when a liquid modifier solution was co-injected. The proposed method has been applied to the determination of silicon in ultrapure water, nitric and hydrochloric acids. KW - Electrothermal atomic absorption KW - Spectrometry KW - Silicon determination KW - Methane KW - Modifier KW - Ultrapure reagents PY - 2012 U6 - https://doi.org/10.1016/j.sab.2012.04.001 SN - 0584-8547 SN - 0038-6987 VL - 70 SP - 68 EP - 73 PB - Elsevier CY - Amsterdam AN - OPUS4-26050 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Laux, Eva-Maria A1 - Behnke, Thomas A1 - Hoffmann, Katrin A1 - Resch-Genger, Ute T1 - Keeping particles brilliant - simple methods for the determination of the dye content of fluorophore-loaded polymeric particles N2 - One of the most active research areas in the life and material sciences is the design and synthesis of fluorescent nano- and micrometre sized particles for applications e.g. as labels, sensor systems, and platforms for fluorescence assays or barcoding materials. The reliable and reproducible fabrication of such particles as well as many applications require accurate, simple, and versatile procedures for the determination of the dye content per particle which affects e.g. the brightness of these materials and their surface charge and thus, colloidal stability. Here, four fast and inexpensive spectroscopic methods for the quantification of the fluorophore content of beads are presented and compared for nanometre- and micrometre sized polystyrene particles loaded or labeled with commercial fluorophores, differing in dye class, charge, and hydrophilicity. This included the determination of the amount of incorporated dye from absorption spectra of bead suspensions, via dissolving of the polymer matrix, via extraction of the polymer matrix, and from the supernatant of the swelling solution or reaction mixture. Method validation was performed with a sulfur-containing dye and elemental analysis. Based upon this method comparison and the accomplishable uncertainties, two reliable strategies for particle characterization and bead process control are identified that can be easily extended to other materials. PY - 2012 U6 - https://doi.org/10.1039/c2ay05822g SN - 1759-9660 SN - 1759-9679 VL - 4 IS - 6 SP - 1759 EP - 1768 PB - RSC Publ. CY - Cambridge AN - OPUS4-26051 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Weise, Frank A1 - Voland, Katja A1 - Pirskawetz, Stephan A1 - Meinel, Dietmar ED - Drimalas, T. ED - Ideker, J.H. ED - Fournier, B. T1 - Innovative measurement techniques for characterising internal damage processes in concrete due to ASR T2 - 14th ICAAR - International conference on alkali aggregate reaction CY - Austin, TX, USA DA - 2012-05-20 KW - Fog chamber KW - Concrete prism test KW - Length change KW - Acoustic emission KW - Ultrasonic velocity KW - µ-3D-CT PY - 2012 IS - 021811-WEIS SP - 1 EP - 10(?) AN - OPUS4-26053 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Gebhardt, Moritz Oliver A1 - Gumenyuk, Andrey A1 - Quiroz Penaranda, Vanessa A1 - Rethmeier, Michael T1 - Laserstrahl-MSG-Hybridschweißen dickwandiger Präzisionsrohre N2 - Dickwandige Rohre aus Stahl sind die Basis einer Vielzahl von Komponenten im Maschinen- und Anlagenbau, zum Beispiel bei Hydraulikkomponenten, in der Kraftwerkstechnik oder der Petroindustrie. Insbesondere, wenn hohe Lage- und Formtoleranzen gefordert werden, ist das klassische Herstellungsverfahren ein Zerspanen aus dem Vollmaterial. Dies ist jedoch zeit- und materialintensiv. Als Alternative bieten sich die Laserstrahl-MSGHybridverfahren mit modernen Hochleistungslasern an. Mit diesen Verfahren ist es derzeit möglich, Bauteile bis zu etwa 15 mm Wanddicke verzugsarm und einlagig zu verschweißen. In ersten Experimenten wurden bei Schweißungen an Rohren jedoch in Bezug auf die Schweißrichtung längs und vertikal orientierte Erstarrungsrisse, so genannte Mittelrippendefekte, festgestellt. Im Rahmen eines Forschungsprojekts konnte die Ursache der Rissentstehung ermittelt und Maßnahmen zur Vermeidung gefunden werden. Dabei ließen sich die technischen Randbedingungen einhalten. Der Artikel gibt einen Überblick über das Forschungsprojekt und die wesentlichen Ergebnisse. --------------------------------------------------------------------------------------------------------------------------------------- Thick-walled pipes made of steel are the basis of a large number of components in mechanical and installation engineering, e.g. for hydraulic components, in power station technology or in the petroleum industry. Particularly when strict positional and shape tolerances are demanded, the classical manufacturing process is chip-producing machining from the solid material. However, this is time-intensive and material- intensive. The laser/GMA hybrid processes with modern high-power lasers are a suitable alternative. With these processes, it is currently possible to weld components with a wall thickness up to approx. 15 mm with little distortion in one pass. However, in initial experiments, solidification cracks with longitudinal and vertical orientations in relation to the welding direction, so-called central rib defects, were established in welds on pipes. Within the framework of a research project, it was possible to determine the cause of the cracking and to find measures in order to avoid it. The technical boundary conditions could be complied with in this respect. The article gives an overview of the research project and the essential results. KW - Laserstrahlschweißen KW - Prozesskombinationen KW - Rissbildung KW - Schutzgasschweißen KW - Schweißnahtfehler KW - Laser welding KW - Process combinations KW - Crack formation KW - Gas-shielded arc welding KW - Weld defects PY - 2012 SN - 0036-7184 VL - 64 IS - 5 SP - 254 EP - 259 PB - Verl. für Schweißen u. Verwandte Verfahren, DVS-Verl. CY - Düsseldorf AN - OPUS4-26054 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Mente, Tobias A1 - Böllinghaus, Thomas T1 - Heat treatment effects on the reduction of hydrogen in multi-layer high-strength weld joints KW - Cold cracking KW - Heat treatment KW - High strength steels KW - Hydrogen KW - Numerical simulation KW - Structural steels PY - 2012 SN - 0043-2288 SN - 1878-6669 VL - 56 IS - 7/8 SP - 26 EP - 36 PB - Springer CY - Oxford AN - OPUS4-26055 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Bäßler, Ralph A1 - Yevtushenko, Oleksandra A1 - Carrillo Salgado, I. T1 - Corrosion behavior of highly alloyed steels in artificial saline aquifer fluids containing carbon dioxide KW - Highly alloyed steels KW - Carbon dioxide KW - Pitting corrosion PY - 2012 SN - 0430-6252 VL - 9 IS - 2 SP - 393 EP - 396 CY - L'viv, Ukrainian national academy of science AN - OPUS4-26056 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - von Chrzanowski, Lars A1 - Beckmann, Jörg A1 - Marchetti, Barbara A1 - Ewert, Uwe A1 - Schade, U. T1 - Terahertz time domain spectroscopy for non-destructive testing of hazardous liquids N2 - Flüssige Gefahr- und Brennstoffe sowie explosive Flüssigkeiten werden mittels zeitaufgelöster Terahertz-Spektroskopie (THZ-TDS) in Analogie zu den in der zerstörungsfreien Werkstoffprüfung verwendeten Strategien untersucht. Verschiedene polare Flüssigkeiten (Alkohole, Aceton, Wasserstoffperoxid, Nitromethan), unpolare Flugzeug- und Kraftfahrzeugkraftstoffe sowie organische Lösungsmittel werden in der praxisrelevanten Reflexionsgeometrie berührungs- und zerstörungsfrei im Zeitbereich charakterisiert. Die Absorptions- und Brechungsindizes einer repräsentativen Auswahl von Flüssigkeiten wurden im Frequenzbereich zwischen 0.1 THz und 1.1 THz unter Verwendung der Transmissionsanordnung spektral ermittelt. Die Messkonfiguration wird für stark und schwach absorbierende Flüssigkeiten jeweils angepasst. KW - Zeitaufgelöste Terahertz-Spektroskopie (THZ-TDS) KW - Flüssige Gefahr und Brennstoffe KW - Time domain spectroscopy PY - 2012 SN - 0025-5300 VL - 54 IS - 6 SP - 444 EP - 450 PB - Hanser CY - München AN - OPUS4-26057 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Naumann, Annette A1 - Seefeldt, Henrik A1 - Stephan, Ina A1 - Braun, Ulrike A1 - Noll, Matthias T1 - Material resistance of flame retarded wood-plastic composites against fire and fungal decay N2 - Flame retarded wood-plastic composites (WPCs) should allow safe application in areas of fire risk. Halogen-free flame retardants can contain high amounts of nitrogen, phosphorus or sulphur, which may serve as nutrition source for wood degrading fungi and accelerate wood decay. Therefore, the material resistance of WPCs with each of four flame retardants against both fire or fungal decay was examined in comparison to WPC without flame retardant. Expandable graphite showed the best performance against fire in cone calorimetry and radiant panel testing. Two ammonium polyphosphates and a third nitrogen-containing flame retardant were not as effective. Contrary to the possibility that flame retardants might enhance fungal decay of WPC, the opposite effect occurred in case of the wood-degrading fungi Trametes versicolor and Coniophora puteana according to determination of mass loss and decrease of bending modulus of elasticity. Only the surface mould Alternaria alternata slightly increased the degradation of WPCs with nitrogen-containing flame retardants compared to WPC without flame retardant according to mass loss data and FTIR-ATR analyses. Finally, WPC including expandable graphite as flame retardant was effective against both fire and fungal decay. KW - Wood-plastic composite (WPC) KW - Flame retardants KW - Fire behaviour KW - Fungal decay KW - Fourier transform infrared - attenuated total reflexion (FTIR-ATR) spectroscopy KW - Microscopy PY - 2012 U6 - https://doi.org/10.1016/j.polymdegradstab.2012.03.031 SN - 0141-3910 SN - 1873-2321 VL - 97 IS - 7 SP - 1189 EP - 1196 PB - Applied Science Publ. CY - London AN - OPUS4-26058 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Senoner, Mathias A1 - Unger, Wolfgang T1 - SIMS imaging of the nanoworld: applications in science and technology N2 - Secondary Ion Mass Spectrometry (SIMS) enables surface chemical analysis of nano-scaled objects and chemical imaging of nano-scaled details of natural or artificial objects. This review presents the state of the art in nanoscale SIMS analysis. At first a short introduction into recent instrumentation for high resolution SIMS imaging and the limiting factors of lateral resolution is given. The next section covers the chemical analysis of nanoparticles. Recent applications of nanoscale imaging SIMS in geology, cosmochemistry, materials research, cellular biology, ecology and medical research are summarized and illustrated by examples. KW - Nanoparticle KW - Nanopartikel KW - Nanoscale imaging KW - Lateral resolution KW - Sekundärionenmassenspektrometrie (SIMS) PY - 2012 U6 - https://doi.org/10.1039/c2ja30015j SN - 0267-9477 SN - 1364-5544 VL - 27 IS - 7 SP - 1050 EP - 1068 PB - Royal Society of Chemistry CY - London AN - OPUS4-26080 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Stark, Wolfgang A1 - Teteris, Gundars A1 - Böhning, Martin T1 - Thermoanalytische Methoden DSC/Hochdruck-DSC und DMA bei der Charakterisierung der Vernetzung reaktiver Kunststoffe T2 - Praxistag Uni Rostock "Thermische Analyse für spezielle Anwendungen" CY - Rostock, Germany DA - 2012-06-19 PY - 2012 AN - OPUS4-26084 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Lohrer, Christian T1 - Sicherheitsmaßnahmen für das Verwenden von Theaterpyrotechnik der Kategorie T2 T2 - 7. Informationsveranstaltung Sprengstoffe und Pyrotechnik CY - Berlin, Germany DA - 2012-05-31 PY - 2012 AN - OPUS4-26085 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Schälike, Stefan A1 - Wehrstedt, Klaus-Dieter A1 - Göck, Dietmar A1 - Schönbucher, Axel T1 - Probability density functions for hot spots and smoke parcels in hydrocarbon pool fires and fundamentals of multiple fires T2 - ACHEMA 2012 CY - Frankfurt am Main, Germany DA - 2012-06-18 PY - 2012 AN - OPUS4-26087 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Weltschev, Margit A1 - Bäßler, Ralph T1 - Einsatz von höherlegierten metallischen Werkstoffen, ferritischen Chromstählen und Duplexstählen für den Transport von Gefahrgütern T2 - GfKORR: Sitzung des AK - Korrosion undl Korrosionsschutz CY - Duisburg, Germany DA - 2012-06-14 PY - 2012 AN - OPUS4-26088 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Weltschev, Margit A1 - Bäßler, Ralph T1 - Evaluation of the resistance of metallic and polymeric materials used for tanks for the transport of dangerous goods T2 - ACHEMA CY - Frankfurt am Main, Germany DA - 2012-06-20 PY - 2012 AN - OPUS4-26089 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Gnutzmann, Tanja A1 - Scheifler, Stefan A1 - Rademann, Klaus A1 - Emmerling, Franziska T1 - Fast crystallization of organic glass formers T2 - 4th European Conference on Crystal Growth CY - Glasgow, Scotland DA - 2012-06-17 PY - 2012 AN - OPUS4-26090 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Hörold, Andreas A1 - Schartel, Bernhard A1 - Trappe, Volker A1 - Korzen, Manfred A1 - Naumann, Maurice T1 - Structural integrity in fire: An intermediate-scale approach T2 - 15th European Conference on Composite Materials, ECCM 15 CY - Venice, Italy DA - 2012-06-24 PY - 2012 AN - OPUS4-26091 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Pospiech, D. A1 - Fischer, O. A1 - Korwitz, A. A1 - Häußler, L. A1 - Bykov, Y. A1 - Döring, M. A1 - Brehme, Sven A1 - Schartel, Bernhard A1 - Köppl, T. A1 - Altstädt, V. T1 - PHOSPHORUS POLYESTERS AS EFFECTIVE FLAME RETARDANTS IN POLYBUTYLENE TEREPHTHALATE T2 - IUPAC MACRO 2012 World Polymer Congress CY - Blacksburg, VA, USA DA - 2012-06-24 PY - 2012 AN - OPUS4-26092 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Rübner, Katrin A1 - Herbst, Tristan A1 - Meng, Birgit A1 - Hauer, B. T1 - Concept to assess the use of secondary materials in concrete T2 - fib Symposium: Concrete Structures for Sustainable Community, STOCKHOLM 2012 CY - Stockholm, Sweden DA - 2012-06-11 PY - 2012 AN - OPUS4-26093 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Scheid, Marc T1 - Praxisbeispiele für Schutzkonzepte: Entstaubungsanlagen - VDI Richtlinien 2263 Blatt 6 und 6.1 T2 - Technikforum "Sichere Handhabung brennbarer Stäube" des VDI-Wissensforums CY - Düsseldorf, Germany DA - 2012-05-22 PY - 2012 AN - OPUS4-26094 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Scheid, Marc T1 - Betriebliche und organisatorische Maßnahmen auf dem Gebiet des Staubexplosionsschutzes T2 - Technikforum "Sichere Handhabung brennbarer Stäube" des VDI-Wissensforums CY - Düsseldorf, Germany DA - 2012-05-22 PY - 2012 AN - OPUS4-26095 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Scheid, Marc T1 - Übersichtsvortrag Staubexplosionsgefahren und Beispiele für Schutzmaßnahmen T2 - Seminar "Brand- und Explosionsschutz" der Berufsgenossenschaft Holz und Metall CY - Nümbrecht, Germany DA - 2012-05-02 PY - 2012 AN - OPUS4-26096 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Schmidt, Martin A1 - Lüth, Peter T1 - Auswertung und Diskussion Ringversuch "EN 15188:2007 Self-ignition temperature" Teilschritte 1 und 2 T2 - 59. Sitzung des Industriearbeitskreises "Brennbare Stäube" CY - Leverkusen, Germany DA - 2012-06-14 PY - 2012 AN - OPUS4-26097 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CHAP A1 - Weidner, Steffen ED - Matyjaszewski, K. ED - Möller, M. T1 - Mass spectrometry: MALDI (Matrix-Assisted Laser Desorption/Ionization) and ESI (Electrospray Ionization) N2 - In recent years mass spectrometric methods, in particular matrix-assisted laser desorption/ionization (MALDI) and electrospray ionization (ESI) time-of-flight (TOF) mass spectrometry (MS) have become indispensable tools for analyzing molecular masses and mass distributions of polymers. Moreover, these techniques offer the advantage of being able to determine simultaneously chemical functionality, and compositional and topological distributions of polymers. Especially in combination with liquid and/or gas phase separation methods, a comprehensive polymer characterization can be achieved and the difficulties of MS to analyze chemically heterogeneous polymers, copolymers, and samples with broad molecular mass distribution can be overcome. KW - MALDI KW - ESI KW - Polymere KW - Electrospray ionization KW - Mass spectrometry KW - Matrix-assisted laser desorption/ionization KW - Tandem MS KW - Time of flight PY - 2012 SN - 978-0-444-53349-4 U6 - https://doi.org/10.1016/B978-0-444-53349-4.00023-6 VL - 2 IS - Chapter 2.05 SP - 93 EP - 109 PB - Elsevier CY - Amsterdam AN - OPUS4-26098 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Thöns, Sebastian A1 - McMillan, D. T1 - Condition Monitoring Benefit for Offshore Wind Turbines T2 - 12th International Conference on Probabilistic Methods Applied to Power Systems, PMAPS 2012 CY - Istanbul, Turkey DA - 2012-06-10 PY - 2012 AN - OPUS4-26060 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Cross, C.E. A1 - Schempp, Philipp A1 - Pittner, Andreas A1 - Rethmeier, Michael A1 - Tang, Z. A1 - Seefeld, T. T1 - Influence of base metal and solidification parameters on grain refinement in aluminium weld metal due to inoculation T2 - International Conference on Trends in Welding Research 2012 CY - Chicago, IL, USA DA - 2012-06-04 PY - 2012 AN - OPUS4-26061 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Dabah, Eitan A1 - Kromm, Arne A1 - Brauser, Stephan A1 - Kannengießer, Thomas T1 - High-energy synchrotron Diffraction study of a Transformation Induced Plasticity Steel During Tensile Deformation T2 - FA 13 Eigenspannungen Besprechungen CY - Remscheid, Germany DA - 2012-06-05 PY - 2012 AN - OPUS4-26062 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Torge, Manfred A1 - Brödner, Doris A1 - Feldmann, Ines A1 - Krug, Sonja A1 - Mathies, Helena A1 - Mull, Birte T1 - Determination of wood protective agents in a world heritage site church T2 - Indoor Air Quality 2012 (IAQ 2012) CY - London, England DA - 2012-06-17 PY - 2012 AN - OPUS4-26063 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Torge, Manfred A1 - Bücker, Michael A1 - Feldmann, Ines T1 - Evaluation of protective glazing for medieval stained glass windows T2 - Indoor Air Quality 2012 (IAQ 2012) CY - London, England DA - 2012-06-17 PY - 2012 AN - OPUS4-26064 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Feldmann, Ines A1 - Torge, Manfred A1 - Berkei, I. T1 - EDX-Analysis of Paint Layers of Medieval Stained Glass Windows T2 - Synchrotron Radiation in Art and Archaeology (SR2A) CY - New York City, NY, USA DA - 2012-06-05 PY - 2012 AN - OPUS4-26065 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Jann, Oliver A1 - Richter, Matthias T1 - Radonexhalationsmessungen mit VOC-Kammern T2 - Radon-Fachgespräch BfS CY - Berlin, Germany DA - 2012-06-05 PY - 2012 AN - OPUS4-26066 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Erhard, Anton A1 - Otremba, Frank A1 - Kilian, R. A1 - Mohr, F. T1 - Alloy 800 Steam Generator Tube Stress Corrosion Cracks - Detection T2 - International Conference on NDE in Relation to Structural Integrity for Nuclear and Pressurized Components (9th NDE) CY - Seattle, WA, USA DA - 2012-05-22 PY - 2012 AN - OPUS4-26068 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Busch, C. A1 - Schröter, T. A1 - Grabolle, Markus A1 - Wenzel, M. A1 - Kempe, H. A1 - Kaiser, W.A. A1 - Resch-Genger, Ute A1 - Hilger, I. T1 - An in vivo spectral multiplexing approach for the cooperative imaging of different disease-related biomarkers with near-infrared fluorescent Förster resonance energy transfer probes N2 - In recent years, much progress has been made in analyzing the molecular origin of many diseases in vivo. For most applications, attention has been devoted to the detection of single molecules only. In this study, we present a proof of concept for the straightforward monitoring of interactions between different molecules via Förster resonance energy transfer (FRET) in an in vivo spectral multiplexing approach using conventional small organic dyes covalently attached to antibodies. Methods: We coupled the fluorophores DY-682 (donor; absorption [abs]/emission [em], 674/712 nm), DY-505 (control donor; abs/em, 498/529 nm), and DY-782 (acceptor; abs/em, 752/795 nm) to the model antibody IgG. The occurrence of FRET between these fluorophores was assessed in vitro for conjugate mixtures adsorbed onto membranes, after accumulation into the phagocytic compartment of macrophages (J774 cells), and in vivo in a mouse edema model using a whole-body animal imaging system with multispectral analysis features. Results: When the free acceptor DY-782 was combined with the DY-682 donor, FRET occurred as a consequence of small dye-to-dye distances, unlike the case for mixtures of the dyes DY-782 and DY-505. Our proof of concept was also transferred to living cells after internalization of the DY-682-IgG–DY-782-IgG pair into macrophages and finally to animals, where intermolecular FRET was observed after systemic probe application in vivo in edema-bearing mice. Conclusion: Our simple cooperative-imaging approach enables the noninvasive detection of the presence of two or principally even more neighboring disease-related biomarkers. This finding is of high relevance for the in vivo identification of complex biologic processes requiring strong spatial interrelations of target molecules in key pathologic activation processes such as inflammation, cancer, and neurodegenerative diseases. KW - FRET KW - IgG antibodies KW - In vivo molecular imaging KW - Near-infrared (NIR) fluorophores KW - Multiplexing KW - Cooperative signaling PY - 2012 U6 - https://doi.org/10.2967/jnumed.111.094391 SN - 0161-5505 SN - 0097-9058 SN - 0022-3123 SN - 1535-5667 VL - 53 IS - 4 SP - 638 EP - 646 PB - SNM CY - Reston, Va. AN - OPUS4-26069 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Gebhardt, Moritz Oliver A1 - Gumenyuk, Andrey A1 - Rethmeier, Michael T1 - Hybrid process welds thick-walled tubes PY - 2012 SN - 0043-2296 SN - 0096-7629 VL - 91 IS - 6 SP - 55 EP - 61 PB - American Welding Society CY - New York, NY AN - OPUS4-26120 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Hodoroaba, Vasile-Dan A1 - Rackwitz, Vanessa T1 - Modeling of X-Ray Scattering for an improved XRF-Analysis T2 - European Conference on X-Ray Spectrometry CY - Vienna, Austria DA - 2012-06-18 PY - 2012 AN - OPUS4-26121 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Hong, Shuxian A1 - Lai Wai-Lok, Wallace A1 - Helmerich, Rosemarie T1 - Monitoring accelerated corrosion in chloride contaminated concrete with ground penetrating radar T2 - 14th International conference on ground penetrating radar - GPR 2012 CY - Shanghai, China DA - 2012-06-04 KW - GPR KW - Reinforcing steel KW - Corrosion KW - Chloride PY - 2012 SN - 978-1-4673-2663-6 SP - 1 EP - 6(?) AN - OPUS4-26122 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Beck, Uwe A1 - Hielscher, Stefan A1 - Weise, Matthias A1 - Mix, Renate A1 - Lerche, D. A1 - Rietz, U. T1 - Progress in Quantitative Adhesion Testing of Films and Coatings by means of Centrifuge Technology - Present State of the Art T2 - PSE 2012, 13th International Conference on Plasma Surface Engineering CY - Garmisch-Partenkirchen, Germany DA - 2012-09-10 PY - 2012 AN - OPUS4-26123 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Lischka, Susanne A1 - Piechotta, Christian T1 - Einsatz eines isotopenmarkierten Kalibrierstandards zur Bestimmung von Arsenobetain mittels HPLC-ESI-MS/MS T2 - Kolloquium "LC-MS in der Umweltanalytik 2012" CY - Leipzig, Germany DA - 2012-06-11 PY - 2012 AN - OPUS4-26124 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Staude, Andreas A1 - Bartscher, M. A1 - Ehrig, Karsten A1 - Ramsay, A. T1 - The Influence of Data Filtering on Dimensional Measurements with CT T2 - WCNDT 2012 CY - Durban, South Africa DA - 2012-04-16 PY - 2012 AN - OPUS4-26126 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Marotzke, Christian A1 - Feldmann, Titus T1 - Failure of Composites under Transverse Loading - a Fracture Mechanical Approach T2 - 15th European Conference on Composite Materials (ECCM15) CY - Venice, Italy DA - 2012-06-25 PY - 2012 AN - OPUS4-26127 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Wolff, Dietmar A1 - von der Ehe, Kerstin A1 - Jaunich, Matthias A1 - Böhning, Martin T1 - Performance of neutron radiation shielding material (U)HMW-PE influenced by gamma radiation T2 - PSAM11 CY - Helsinki, Finland DA - 2012-06-25 PY - 2012 AN - OPUS4-26129 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Maul, Ronald A1 - Sommerschuh, K. A1 - Muny, Th. A1 - Koch, Matthias T1 - Development of an improved in vitro digestion model - influence on apparent zearalenone content in flour T2 - 34. Mycotoxin-Workshop CY - Braunschweig, Germany DA - 2012-05-14 PY - 2012 AN - OPUS4-26043 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Maul, Ronald T1 - Metabolic investigations, biomarker identification and impact on toxin risk assessment T2 - Institutsseminar am Analytikzentrum des Departments IFA-Tulln CY - Tulln an der Donau, Austria DA - 2012-06-05 PY - 2012 AN - OPUS4-26044 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Schälike, Stefan A1 - Wehrstedt, Klaus-Dieter A1 - Schönbucher, Axel T1 - Flame heights of di-tert-butyl peroxide pool fires - experimental studyand modeling T2 - 5th International Conference on Safety & Environment in Process & Power Industry CY - Milan, Italy DA - 2012-06-03 PY - 2012 AN - OPUS4-26045 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Dittrich, Bettina A1 - Schartel, Bernhard A1 - Hofmann, D. A1 - Wartig, K.-A. A1 - Mülhaupt, R. T1 - Carbon Black, Multiwall Nanotubes and Graphene - Promising Approach to Flame Retarded Nanocomposites? T2 - 23rd Annual Conference on Recent Advances in Flame Retardancy of Polymeric Materials CY - Stamford, CT, USA DA - 2012-05-20 PY - 2012 AN - OPUS4-26047 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Piechotta, Christian A1 - Rothe, Robert A1 - Prewing, Linda T1 - Analyse von perfluorierten Chemikalien - LC-MS vs. GC-MS T2 - LC-MS in der Umweltanalytik 2012 CY - Leipzig, Germany DA - 2012-06-11 PY - 2012 AN - OPUS4-26048 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Koch, Matthias A1 - Köppen, Robert T1 - Referenzmaterialien - ein Beitrag zur Lebensmittelsicherheit T2 - 13. BfR-Forum Verbraucherschutz: Kontrolle in der Nahrungskette - Besser Nachweisen - Besser Bewerten CY - Berlin, Germany DA - 2012-06-14 PY - 2012 AN - OPUS4-26049 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Traulsen, C.H.-H. A1 - Darlatt, Erik A1 - Richter, S. A1 - Poppenberg, J. A1 - Hoof, S. A1 - Unger, Wolfgang A1 - Schalley, C.A. T1 - Intermixed terpyridine-functionalized monolayers on gold: nonlinear relationship between terpyridyl density and metal ion coordination properties N2 - Aiming at the functionalization of surfaces with terpyridine anchors for the coordinative deposition of additional layers, mixed self-assembled monolayers (SAMs) were prepared from binary solutions of 12-(2,2':6',2''-terpyridine-4'-yl)dodecane-1-thiol (TDT) and 1-decanethiol (DT). The SAMs and the order of the constituting molecules were analyzed by X-ray photoelectron spectroscopy (XPS), near-edge X-ray absorption fine structure spectroscopy (NEXAFS), and time-of-flight-secondary ion mass spectrometry (ToF-SIMS). The composition of the (TDT/DT)-SAMs and with it the surface density of terpyridyl groups correlates linearly with the relative concentrations of the two compounds in the solution used for depositing them. In marked contrast, the amount of terpyridine-coordinated PdII ions significantly deviates from this trend with an optimum at a 1:3 ratio of TDT/DT. This indicates a major fraction of the terpyridines in TDT-rich SAMs not to be accessible for PdII ion coordination. In agreement, NEXAFS spectroscopy reveals the alkyl backbones in TDT-rich SAMs not to be ordered, while they are preferentially upright oriented in the optimal 1:3-(TDT/DT)-SAMs. We interpret this in terms of terpyridine backfolding in TDT-rich SAMs, while they are located in accessible positions on top of the SAM in the 1:3-(TDT/DT)-SAM. While the alkyl backbones in the 1:3-(TDT/DT)-SAM are ordered, NEXAFS spectroscopy shows the terpyridyl groups not to have a preferential orientation in this SAM and thus retain enough flexibility to adjust to molecules that are deposited on top of the mixed SAM. In conclusion, the novel SAM does not undergo phase separation and consists predominantly of intermixed phases with adjustable surface density of quite flexible terpyridine anchor groups. The terpyridine–PdII anchors are not only available for a future deposition of the next layer, but the metal ions also represent a sensitive probe for the accessibility of the terpyridyl groups. PY - 2012 U6 - https://doi.org/10.1021/la301644r SN - 0743-7463 SN - 1520-5827 VL - 28 IS - 29 SP - 10755 EP - 70763 PB - American Chemical Society CY - Washington, DC AN - OPUS4-26430 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Sturm, Heinz A1 - Schröter, Maria-Astrid A1 - Weimann, Christiane T1 - Imaging method for vibrating scanning force microscopy cantilevers for the analysis of mode shapes and nonlinear harmonic motion N2 - A specially designed scanning force microscope (SFM, atomic force microscope – AFM) was incorporated into the chamber of a commercial scanning electron microscope (SEM) to investigate vibrating SFM cantilevers at their resonance. Inherently, the spatial resolution of electron microscopy is higher than that of optical methods. In this paper we present vibration modes (eigenmodes) of two different SFM cantilevers. Their nonlinear behavior is also explored in order to depict their 2nd harmonics (twice the fundamental frequency). Imaging of the local vibration is performed by measuring the frequency- and phase-selective responses of the SE signal at different X and Y positions of the scanned electron beam. KW - Electron microscopy KW - Scanning force microscopy KW - Motion detection KW - Cantilever KW - Eigenmode KW - Harmonic KW - Nonlinearity KW - Harmonix cantilever PY - 2012 U6 - https://doi.org/10.1016/j.mee.2012.07.088 SN - 0167-9317 SN - 1873-5568 VL - 98 SP - 492 EP - 496 PB - Elsevier Science CY - Amsterdam, Netherlands AN - OPUS4-26431 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Brauser, Stephan A1 - Subaric-Leitis, Andreas A1 - Ullner, Christian A1 - Rethmeier, Michael T1 - Instrumentierte Eindringprüfung zur Bestimmung lokaler Festigkeitskennwerte an Punktschweißverbindungen N2 - Die lokalen Festigkeiten im Bereich einer Schweißverbindung sind maßgebend für deren Widerstandsfähigkeit gegenüber mechanischen Beanspruchungen. Im Gegensatz zu anderen präparationsaufwendigen Methoden, z. B. die Untersuchung von Mikro-Zugproben, liefert die instrumentierte Eindringprüfung mit deutlich geringerem Aufwand Verläufe von Festigkeiten mit sehr guter Ortsauflösung. Im Rahmen dieser Arbeit werden wahre Spannungs-Dehnungskurven aus zyklischen Eindringversuchen mittels Auswertungen auf der Basis repräsentativer Spannungen und Dehnungen und auf der Basis neuronaler Netze an Punktschweißverbindungen aus hochfesten Stählen, jeweils im Bereich des Grundwerkstoffs und der Schweißlinse, bestimmt. Die Ergebnisse werden exemplarisch für einen Stahltyp mit Ergebnissen von Zugversuchen am Grundwerkstoff und am thermisch behandelten Werkstoff mit Schweißgut ähnlicher Struktur verglichen und diskutiert. KW - Lokale Festigkeit KW - Spannungs-Dehnungskurve KW - Instrumentierte Eindringprüfung KW - Punktschweißverbindung PY - 2012 SN - 0025-5300 VL - 54 IS - 9 SP - 597 EP - 604 PB - Hanser CY - München AN - OPUS4-26432 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Williams, S. H. A1 - Hilger, A. A1 - Kardjilov, N. A1 - Manke, I. A1 - Strobl, M. A1 - Douissard, P.A. A1 - Martin, T. A1 - Riesemeier, Heinrich A1 - Banhart, J. T1 - Detection system for microimaging with neutrons N2 - A new high-resolution detector setup for neutron imaging has been developed based on infinity-corrected optics with high light collection, combined with customized mounting hardware. The system can easily be installed, handled and fitted to any existing facility, avoiding the necessity of complex optical systems or further improved electronics (CCD). This is the first time optical magnification higher than 1:1 has been used with scintillator-based neutron detectors, as well as the first implementation of infinity corrected optics for neutron imaging, achieving the smallest yet reported effective pixel size of 3.375 µm. A novel transparent crystal scintillator (GGG crystal) has been implemented with neutrons for the first time to overcome limitations of traditional powder scintillators (Li6/ZnS, Gadox). The standardized procedure for resolution measurements with the Modulation Transfer Function (MTF) is summarized to facilitate comparison between instruments and facilities. Using this new detector setup, a resolution of 14.8 µm with a field of view of 6 mm × 6 mm has been achieved while maintaining reasonable count times. These advances open a wide range of new possible research applications and allow the potential for additional future developments. KW - Instrumentation for neutron sources KW - Neutron radiography KW - Neutron detectors (cold, thermal, fast neutrons) PY - 2012 U6 - https://doi.org/10.1088/1748-0221/7/02/P02014 SN - 1748-0221 VL - 7 IS - P02014 SP - 1 EP - 26 PB - Inst. of Physics Publ. CY - London AN - OPUS4-26433 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Markötter, H. A1 - Alink, R. A1 - Haußmann, J. A1 - Dittmann, K. A1 - Arlt, Tobias A1 - Wieder, F. A1 - Tötzke, C. A1 - Klages, M. A1 - Reiter, C. A1 - Riesemeier, Heinrich A1 - Scholta, J. A1 - Gerteisen, D. A1 - Banhart, J. A1 - Manke, I. T1 - Visualization of the water distribution in perforated gas diffusion layers by means of synchrotron X-ray radiography N2 - Perforated gas diffusion layers (GDLs) of polymer electrolyte membrane fuel cells (PEMFCs) were investigated by means of in-situ synchrotron X-ray radiography during operation. We found a strong influence of perforations on the water distribution and transport in the investigated Toray TGP-H-090 GDL. The water occurs mainly around the perforations, while the holes themselves show varying water distributions. Some remain dry, while most of them fill up with liquid water after a certain period or might serve as drainage volume for effective water transport. KW - Polymer electrolyte membrane fuel cell (PEMFC) KW - Radiography KW - Synchrotron KW - X-ray imaging KW - Perforated gas diffusion layer (GDL) KW - Water transport PY - 2012 U6 - https://doi.org/10.1016/j.ijhydene.2012.01.141 SN - 0360-3199 VL - 37 IS - 9 SP - 7757 EP - 7761 PB - Elsevier CY - Oxford AN - OPUS4-26434 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Zehbe, R. A1 - Riesemeier, Heinrich A1 - Kirkpatrick, C.J. A1 - Brochhausen, C. T1 - Imaging of articular cartilage - data matching using X-ray tomography, SEM, FIB slicing and conventional histology N2 - The study was aimed at demonstrating a true cellular resolution for articular cartilage using synchrotron radiation-based X-ray microcomputed tomography (SR-µCT) with a sample-specific optimization of the phase contrast. The generated tomographic data were later used to prepare a matching histological sample from the full volume specimen. We used highly coherent and monochromatic X-rays from a synchrotron source to image a tissue sample of bovine articular cartilage after deparaffinization. Phase contrast enhancement was achieved by using five different sample to detector distances for the same X-ray energy. After tomography, the sample was re-embedded into resin while retaining a dedicated sample orientation for subsequent sectioning and polishing, which was conducted until a previously defined spatial position was achieved. The protocol for resin embedding was developed to inhibit morphological changes during embedding. Giemsa staining was applied for better structural and morphological discrimination. Data from tomography and lightmicroscopy were exactly matched and finally compared to results from FIB/SEM imaging. Image detail was achieved at a single cell resolution. Image detail was achieved at a single cell resolution, which has been estimated to be 0.833 µm/voxel in the tomographic data. SR-µCT with optimized phase contrast properties represents a method to investigate biological tissues in certain areas of interest, where true cellular resolution or enhanced volumetric imaging is needed. In this study, we demonstrate that this method can compete with conventional histology using light microscopy but even surpasses it due to the possibility of retrieving volumetric data. KW - Synchrotron radiation-based µCT KW - Phase contrast KW - FIB/SEM imaging KW - Histology KW - Articular cartilage KW - Data matching PY - 2012 U6 - https://doi.org/10.1016/j.micron.2012.05.001 SN - 0047-7206 SN - 0968-4328 VL - 43 IS - 10 SP - 1060 EP - 1067 PB - Pergamon Press CY - Oxford AN - OPUS4-26435 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Payton, Eric A1 - Yardley, Victoria T1 - EBSD-based analysis of orientation relationship scatter in the FCC-BCC/BCT martensitic transformation in Fe-based alloys T2 - TMS 2012 Annual Meeting & Exhibition CY - San Antonio, TX, USA DA - 2012-03-02 PY - 2012 AN - OPUS4-26436 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Thöns, Sebastian A1 - Faber, M.H. A1 - Rücker, Werner T1 - Fatigue and serviceability limit state model basis for assessment of offshore wind energy converters N2 - This paper develops the models for the structural performance of the loading and probabilistic characterization for the fatigue and the serviceability limit states for the support structure of offshore wind energy converters. These models and a sensitivity study are part of a risk based assessment and monitoring framework and will be applied for establishing the 'as designed and constructed' reliability as prior information for the assessment and the design of monitoring systems. The constitutive physical equations are introduced in combination with the fatigue and serviceability limit state requirements as the starting point for the development of the structural performance and loading models. With these models introduced in detail, several modeling aspects for both limit states are analyzed. This includes analyses of the influence on the hot spot stresses by applying a contact formulation for the pile guide brace connection and the application of a finite element formulation using solid elements. Further, the comparison of the natural frequencies of a discrete rotor model with a continuous rotor model is documented. To account for uncertainties associated with the structural and loading models, a probabilistic model is derived on the basis of literature review and measurement data from a prototype Multibrid M5000 support structure. The sensitivity study is based on the calculation of a nonlinear coefficient of correlation in conjunction with predetermined designs of experiments. This is conducted by a systematic analysis of the influence of the random variables on limit state responses and hence on the structural reliability. Integrating the analyses and sensitivity studies of the fatigue and serviceability limit state models developed in this paper as well as the ultimate limit state models in Thöns et al. ('Ultimate Limit State Model Basis for Assessment of Offshore Wind Energy Converters,' ASME J. Offshore Mech. Arct. Eng.), the model basis for the assessment is completed. The process of establishing and analyzing such a model basis contributes to a detailed understanding of the deterministic and probabilistic characteristics of the structure and provides valuable insights in regard to the significance of available data. KW - Fatigue KW - Finite element analysis KW - Rotors KW - Wind power PY - 2012 U6 - https://doi.org/10.1115/1.4004514 SN - 0892-7219 VL - 134 IS - 3 SP - 031905-1 - 031905-10 CY - Fairfield, NJ AN - OPUS4-26437 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Pretsch, Thorsten A1 - Mirtschin, Nikolaus T1 - Miniaturization of QR Code Carriers based on Shape Memory Polymer T2 - American Society of Mechanical Engineers ASME 2012 Conference on Smart Materials, Adaptive Structures and Intelligent Systems SMASIS 2012 CY - Stone Mountain, GA, USA DA - 2012-09-19 PY - 2012 N1 - Geburtsname von Mirtschin, Nikolaus: Fritzsche, N. - Birth name of Mirtschin, Nikolaus: Fritzsche, N. AN - OPUS4-26438 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Heunisch, Andreas T1 - Zerstörungsfreie Prüfung an Multilayern T2 - ZEMI summer school 2012 CY - Berlin, Germany DA - 2012-08-27 PY - 2012 AN - OPUS4-26439 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Schmidt, Wolfram T1 - Rheology - The Key to Innovation in Concrete T2 - SPIN Meeting and Cement and Concrete Workshop CY - Dar Es Salaam, Tanzania DA - 2012-07-01 PY - 2012 AN - OPUS4-26400 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - GEN A1 - Völling, E. A1 - Reifarth, N. A1 - Vogl, Jochen ED - Nosch, M.-L. ED - Laffineur, R. T1 - The intercultural context of treasure A in Troy - jewellery and textiles T2 - 13th International Aegean Conference CY - Copenhagen, Denmark DA - 2010-04-21 PY - 2012 SN - 978-90-429-2665-3 SP - 531 EP - 538 PB - Peeters Publishers CY - Liège, Belgium AN - OPUS4-26408 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Nöller, Renate ED - Hauptmann, Andreas ED - Heike Stege, T1 - Zinnoberlagerstätten im Vergleich - Auswahl historisch bedeutender Vorkommen KW - Zinnober KW - Lagerstätten KW - Elementbestimmung KW - ESEM PY - 2012 SN - 0947-6229 VL - 19 IS - 1/2 SP - 61 EP - 76 PB - Deutsches Bergbau-Museum CY - Bochum AN - OPUS4-26409 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Fontana, Patrick A1 - Pirskawetz, Stephan A1 - Lura, P. T1 - Plastic Shrinkage Cracking Risk of Concrete - Evaluation of Test Methods T2 - 7th RILEM International Conference on Cracking in Pavements 2012 CY - Delft, Netherlands DA - 2012-06-20 PY - 2012 AN - OPUS4-26441 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Dorgerloh, Ute A1 - Becker, Roland A1 - Nehls, Irene A1 - Theißen, H. A1 - Hilbert, S. T1 - Stabilisierung von Grundwasserproben für die Wasseranalytik T2 - DECHEMA Jahrestagung "Sanierung" CY - Frankfurt am Main, Germany DA - 2012-11-26 PY - 2012 AN - OPUS4-26442 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Dorgerloh, Ute T1 - Darstellung der Aktivitäten der BAM auf dem Gebiet der Wasseranalytik T2 - Resortforschungseinrichtungen, AG "Wasser", Themencluster 4, Qualitätssicherung in der Analytik CY - Braunschweig, Germany DA - 2012-09-10 PY - 2012 AN - OPUS4-26443 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Braun, Ulrike A1 - Lorenz, Edelgard A1 - Kneip, Gisela A1 - Rybak, Thomas T1 - Time-Dependent Structure Changes of Polymers for Medical Application During their Life Cycle T2 - MODEST 2012 CY - Prague, Czech Republic DA - 2012-09-02 PY - 2012 AN - OPUS4-26444 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Brehme, Sven A1 - Schartel, Bernhard A1 - Bykov, Y. A1 - Döring, M. A1 - Fischer, O. A1 - Pospiech, D. A1 - Köppl, T. A1 - Altstädt, V. T1 - Phosphorus polyesters as halogen-free polymeric flame retardants in poly(buylene terephthalate) - Influence of the chemical structure T2 - MoDeSt 2012 CY - Prague, Czech Republic DA - 2012-09-02 PY - 2012 AN - OPUS4-26445 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Richter, Regina A1 - Maierhofer, Christiane A1 - Kreutzbruck, Marc ED - Cardone, G. T1 - Numerical method of active thermography for the reconstruction of back wall geometry T2 - QIRT 11 - 11th International conference on Quantitative InfraRed Thermography CY - Prague, Czech Repubilc DA - 11.06.2012 KW - Rekonstruktion KW - Inverse Probleme KW - Defekte PY - 2012 SP - 1 EP - 9 AN - OPUS4-26446 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Götschel, S. A1 - Weiser, M. A1 - Maierhofer, Christiane A1 - Richter, Regina ED - Cardone, G. T1 - Data enhancement for active thermography T2 - QIRT 11 - 11th International conference on Quantitative InfraRed Thermography CY - Naples, Italy DA - 2012-06-11 KW - Datenglättung KW - Rekonstruktion PY - 2012 SP - 1 EP - 9(?) AN - OPUS4-26447 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Dahmen-Levison, U. A1 - Maul, Ronald T1 - Kein kalter Kaffee - Eine schnelle, verlässliche Analysemethode für Ochratoxin: Validierung der Probenvorbereitung und Vorstellung der Analytik N2 - Ob Kaffee am Morgen, der Latte unterwegs oder der schnelle Espresso, Kaffee wird überall getrunken und ist das am häufigsten konsumierte Getränk in Deutschland. Schon seit Jahrhunderten lieben Menschen in der ganzen Welt dieses belebende Getränk. Es setzt sich aus ungefähr 1000 verschiedenen Inhaltsstoffen zusammen. Dazu gehören Vitamine und Mineralstoffe, Proteine und Fette, Säuren und Antioxidantien. Viele dieser Inhaltsstoffe können durchaus positive Effekte auf den menschlichen Organismus haben. PY - 2012 SN - 0012-0413 SN - 1869-2214 VL - 108 IS - April SP - 214 EP - 220 PB - Wiss. Verl.-Ges. CY - Stuttgart AN - OPUS4-26449 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Marotzke, Christian A1 - Feldmann, Titus T1 - Failure of composites under transverse loading - a fracture mechanical approach N2 - The failure of fiber reinforced composites under transverse loading is investigated on a representative volume element. The volume element is composed of a twelve fiber hexagonal array. The debonding of the central fiber is studied under transverse shear as well as under transverse compressive loading by calculating the mode I and mode II part of the energy release rate. The initiation of failure is assumed to take place at the location of maximum tensile or maximum shear stresses, respectively. In order to determine the failure initiation point, the stress field in the interface before crack initiation is calculated. T2 - ECCM15 - 15th European conference on composite materials CY - Venice, Italy DA - 2012-06-24 KW - Composites KW - Failure criteria KW - Fracture KW - Debonding KW - Fracture toughness KW - Interface PY - 2012 SN - 978-88-88785-33-2 SP - 1 EP - 7(?) AN - OPUS4-26450 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Schlick-Hasper, Eva A1 - Jahnke, Wolfgang A1 - Drousch, Björn A1 - Goedecke, Thomas T1 - Experimentelle Untersuchungen zur Empfindlichkeit des Bubble Test T2 - BAM AK-Inspektionsstellen, BAM CY - Berlin, Germany DA - 2012-09-11 PY - 2012 AN - OPUS4-26452 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Schlick-Hasper, Eva A1 - Jahnke, Wolfgang A1 - Drousch, Björn A1 - Goedecke, Thomas T1 - Experimentelle Untersuchungen zur Empfindlichkeit des Bubble Test T2 - ERFA-Verpackungen, BAM CY - Berlin, Germany DA - 2012-09-12 PY - 2012 AN - OPUS4-26453 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Bartholmai, Matthias A1 - Köppe, Enrico A1 - Liehrs, A. A1 - Schiller, J. T1 - Radio-Based Multi-Sensor for Person Tracking and Indoor Positionin T2 - 9th Workshop on Positioning, Navigation and Communication 2012 (WPNC '12) CY - Dresden, Germany DA - 2012-03-15 PY - 2012 AN - OPUS4-26454 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Menrad, Andreas A1 - Goedecke, Thomas T1 - Fallprüfung von Verpackungen aus HDPE nach der Vorlagerung mit Standardflüssigkeiten und der Vergleich mit Werkstoffkennwerten T2 - ERFA-Verpackungen 2012, BAM CY - Berlin, Germany DA - 2012-09-12 PY - 2012 AN - OPUS4-26455 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Krebber, Katerina A1 - Wendt, Mario A1 - Glötzl, R. T1 - Development of a PMMA-POF based fiber optic inclinometer with smart transport and installation characteristics T2 - 6th European Workshop on Structural Health Monitoring (EWSHM) CY - Dresden, Germany DA - 2012-06-03 PY - 2012 AN - OPUS4-26456 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Krebber, Katerina T1 - Smart Technical Textiles Based on Fibre Optic Sensors - Technologies and Applications T2 - CIMTEC 2012: 4. International Conference "Smart Materials, Structures and Systems" CY - Montecatini Terme, Italy DA - 2012-06-10 PY - 2012 AN - OPUS4-26457 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Krebber, Katerina T1 - Fiber Optic Sensors in Technical Safety Sciences T2 - Workshop "Trends in Fiber Optics 2012" CY - Jena, Germany DA - 2012-02-23 PY - 2012 AN - OPUS4-26458 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Fischer, Michael A1 - Subaric-Leitis, Andreas T1 - Ermittlung von Spannkräften in Spannstählen und -seilen T2 - 48. Sitzung des VMPA-Arbeitskreises Prüfmaschinen und Prüfgeräte CY - Oberaula, Germany DA - 2012-06-14 PY - 2012 AN - OPUS4-26459 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Brandes, K. A1 - Neitzel, F. A1 - Daum, Werner A1 - Weisbrich, S. T1 - Detektierung von Strukturschädigungen durch Analyse der Lagrange-Multiplikatoren (LM) der Ausgleichungsrechnung N2 - Die ständige Überwachung von Konstruktionen während ihrer Lebenszeit ist eine bedeutsame Aufgabe, die Gegenstand vielzähliger Forschungsaktivitäten ist. Unter dem Aspekt der Nachhaltigkeit ist die Verlängerung der Nutzungsdauer bestehender Konstruktionen von unschätzbarem Wert, sowohl aus finanziellen Gründen als auch unter dem Gesichtspunkt der Erhaltung der gebauten Umwelt und des Denkmalschutzes.Bei allen Erfolgen der Projekte zur Bauwerkserhaltung ist die Frage, wie entstehende Schädigungen rechtzeitig erkannt werden können, auch wenn sie erst geringfügig sind, nicht befriedigend beantwortet worden. In diesem Beitrag wird eine neue Methode zur Detektierung von Strukturschädigungenvorgestellt. Diese beruht auf einer integrierten Auswertung von Messwerten verschiedener Sensoren nach der Methode der kleinsten Quadrate sowie der Interpretation der dabei auftretenden Langrange-Multiplikatoren.Diese Methode der Schädigungsanalyse wird anhand eines numerischen Beispiels aus einemVier-Punkt-Biegeversuchmit einem Verbundträgernäher erläutert. T2 - Sensoren und Messsysteme 2012 - 16. GMA / ITG-Fachtagung CY - Nürnberg, Germany DA - 2012-05-22 KW - Zustandsüberwachung KW - Structural health monitoring KW - Schadensdetektion KW - Ausgleichsrechnung KW - Sensorik PY - 2012 SN - 978-3-9813484-0-8 U6 - https://doi.org/10.5162/sensoren2012/5.2.4 SP - 555 EP - 566 AN - OPUS4-26410 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Westwood, S. A1 - Josephs, R. A1 - Daireaux, A. A1 - Wielgosz, R. A1 - Davies, S. A1 - Wang, H. A1 - Rodrigues, J. A1 - Wollinger, W. A1 - Windust, A. A1 - Kang, M. A1 - Fuhai, S. A1 - Philipp, Rosemarie A1 - Kuhlich, Paul A1 - Wong, S.-K. A1 - Shimizu, Y. A1 - Pérez, M. A1 - Avila, M. A1 - Fernandes-Whaley, M. A1 - Prevoo, D. A1 - de Vos, J. A1 - Visser, R. A1 - Archer, M. A1 - LeGoff, T. A1 - Wood, S. A1 - Bearden, D. A1 - Bedner, M. A1 - Boroujerdi, A. A1 - Duewer, D. A1 - Hancock, D. A1 - Lang, B. A1 - Porter, B. A1 - Schantz, M. A1 - Sieber, J. A1 - White, E. A1 - Wise, S. A. T1 - Final report on key comparison CCQM-K55.a (estradiol): an international comparison of mass fraction purity assignment of estradiol N2 - Under the auspices of the Organic Analysis Working Group (OAWG) of the Comité Consultatif pour la Quantité de Matière (CCQM) a key comparison, CCQM K55.a, was coordinated by the Bureau International des Poids et Mesures (BIPM) in 2009/2010. Eleven national measurement institutes and the BIPM participated. Participants were required to assign the mass fraction of estradiol present as the main component in the comparison sample (CCQM-K55.a) which consisted of a bulk estradiol hemihydrate material obtained from a commercial supplier that had been extensively but not exhaustively dried prior to sub-division into the units supplied for the comparison. Estradiol was selected to be representative of the performance of a laboratory's measurement capability for the purity assignment of organic compounds of medium structural complexity [molar mass range 300–500 Da] and low polarity (pKOW < -2) for which related structure impurities can be quantified by capillary gas phase chromatography (GC) or by high performance liquid chromatography (LC). The majority of participants used a mass balance approach to determine the estradiol content. The key comparison reference value (KCRV) for estradiol in CCQM-K55.a was assigned by combination of KCRVs assigned by consensus from participant results for each orthogonal impurity class. This allowed participants to demonstrate the efficacy (or otherwise) of their implementation of the mass balance approach and to demonstrate that their assigned value for the main component agreed with the KCRV through use of internally consistent contributing methods. The KCRV for the estradiol content of the material was 984.3 mg/g with a combined standard uncertainty of 0.42 mg/g. The individual participant results showed that a relative expanded uncertainty for the purity assignment of 0.2% is a reasonable estimate of the best achievable result by an individual laboratory for a material of this complexity available in this amount at this level of purity. The relative expanded uncertainties reported by laboratories having results consistent with the KCRV ranged from 0.2% to 0.8%. The review of results that were biased from the KCRV showed that two major analytical challenges are posed by the material: the measurement of its water content and controlling for related substance artefact formation during the analysis process. The results displaying a positive bias relative to the KCRV (overestimation of estradiol content) were due to underestimation of the water content of the material, while those with a negative bias (underestimation of estradiol) overestimated the total related substance impurities through a failure to detect and control for artefact formation arising from in situ oxidative dimerization of estradiol in neutral solution prior to analysis. There was however good agreement between all participants in the identification and the quantification of the individual related structure impurities actually present in the sample. The comparison also demonstrated the utility of high-field 1H NMR for both quantitative and qualitative analysis of high purity compounds. It is noted that all the participants who used qNMR as a major or contributing technique and included it as part of, combined it or confirmed it with a conventional 'mass balance' data estimate, obtained results consistent with the KCRV. PY - 2012 U6 - https://doi.org/10.1088/0026-1394/49/1A/08009 SN - 0026-1394 SN - 1681-7575 VL - 49 IS - 1A Tech. Suppl. / 08009 SP - 1 EP - 33 PB - Inst. of Physics Publ. CY - Bristol AN - OPUS4-26411 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Trommsdorf, Stephan T1 - German Product Contact Point T2 - Erfahrungsaustausch der Produktinfostellen der Ostseestaaten CY - Copenhagen, Denmark DA - 2012-05-30 PY - 2012 AN - OPUS4-26412 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Eichler, Thorsten A1 - Isecke, Bernd A1 - Wilsch, Gerd ED - Forde, M.C. T1 - Investigations on the secondary protection mechanisms in cathodic protection applications N2 - A joint research project was accomplished by ibac and BAM with the aim to develop a numerical model of cathodic protection (CP) of reinforced concrete with a special focus on CP of the rear reinforcement layer. The model was intended to include the effects of chemical alterations within the concrete and the steel concrete interface, which are induced by long-term application of CP. The investigations presented in this paper focus on the migration of chloride ions due to small electric fields as applied during cathodic protection of steel in reinforced concrete structures and its impact on polarisation characteristics. A comparatively new method, laser induced breakdown spectroscopy (LIBS), was used to determine chloride profiles on laboratory specimens in order to investigate one of several model parameters to describe cathodic protection of the rear reinforcement of reinforced concrete structures. These investigations are described elsewhere, [1]. The paper focuses on long term polarisation tests and their impact on the charge depending cathodic polarisation behaviour of laboratory specimens. T2 - Structural faults & repair 2012 - 14th International conference and exhibition CY - Edinburgh, Scotland DA - 2012-07-03 KW - Concrete KW - Cathodic protection KW - Chloride migration KW - Corrosion KW - Steel in concrete PY - 2012 SN - 0-947664-71-7 SP - 1 EP - 6 PB - Engineering Technics Press AN - OPUS4-26413 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Grunewald, Thomas T1 - Mechanischer Explosionsschutz- mechanisch erzeugte Funken als Zündquelle T2 - Ausbildung zum Explosionsschutzbeauftragten (Veranst.-Nr.: E-H050-08-036-2) CY - Timmendorfer Strand, Germany DA - 2012-08-28 PY - 2012 AN - OPUS4-26414 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Schröder, Volkmar T1 - Explosionsgrenzen von Biogas T2 - 2. Fachtagung "Arbeitssicherheit in der Gasversorgung" CY - Düsseldorf, Germany DA - 2012-06-26 PY - 2012 AN - OPUS4-26415 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Poli, Marco A1 - Grätz, Rainer A1 - Schröder, Volkmar T1 - An experimental study on safety-relevant parameters of turbulent gas explosion venting at elevated initial pressure T2 - 20th International Congress of Chemical and Process Engineering CHISA 2012 CY - Prague, Czech Republic DA - 2012-08-25 PY - 2012 AN - OPUS4-26416 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Rethmeier, Michael T1 - Welding simulation for industrial and research applications T2 - 2nd International Symposium on Aims and Scope Computer-Aided Welding Engineering CY - Jinan, China DA - 2012-08-23 PY - 2012 AN - OPUS4-26418 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Rethmeier, Michael A1 - Gumenyuk, Andrey A1 - Gook, Sergej T1 - Hybrid Laser Arc Welding of X80 and X120 Steel Grade T2 - Joint Intermediate Meeting of IIW Comm. IV, XII and SG212 CY - Berlin, Germany DA - 2012-04-18 PY - 2012 AN - OPUS4-26419 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Rethmeier, Michael T1 - Moderne Schweißverfahren für innovative Stahlwerkstoffe T2 - FOSTA Kuratoriumssitzung CY - Düsseldorf, Germany DA - 2012-02-09 PY - 2012 AN - OPUS4-26420 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Rethmeier, Michael A1 - Gumenyuk, Andrey A1 - Gook, Sergej T1 - Weldability of Thick Walled Low Carbon Steels Using High Power Laser Hybrid Welding T2 - Vortrag an der Fakultät für Maschinenbau, IIT Bombay CY - Mumbai, India DA - 2012-08-28 PY - 2012 AN - OPUS4-26421 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Rethmeier, Michael A1 - Gumenyuk, Andrey A1 - Gook, Sergej T1 - Hybrid Laser Arc Welding of X80 and X120 Steel Grade T2 - 65th Annual Assembly & International Conference of the International Institue of Welding CY - Denver, CO, USA DA - 2012-07-08 PY - 2012 AN - OPUS4-26422 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Rethmeier, Michael A1 - Brauser, Stephan A1 - Gebhardt, Moritz Oliver T1 - Influence of imperfections on the fatigue performance of resistance spot welded joints T2 - Trends in Welding and Research 2012 CY - Chicago, IL, USA DA - 2012-06-04 PY - 2012 AN - OPUS4-26423 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Mann, Guido A1 - Zoheidi, M. A1 - Krüger, Jörg T1 - Hochleistungsfasern am Limit - Laserinduzierte Zerstörung als Einsatzgrenze bei Lichtwellenleitern N2 - Aufgrund der steigenden Anforderungen an Fasern für Hochleistungsanwendungen hat die Business Unit Fiber Optics der Leoni Gruppe gemeinsam mit der BAM Bundesanstalt für Materialforschung und -prüfung die Herausforderung angenommen, erstmalig die Zerstörschwellen eigener “large core” Spezialfasern zu untersuchen. KW - Laserinduzierte Zerstörschwelle KW - Optische Multimodefaser KW - Lichtwellenleiter KW - Nanosekundenlaser PY - 2012 UR - http://www.leoni-fiber-optics.com/fileadmin/bu/fo/news/pdf/fachpresse/I-PDF_LP110166_leoni_LP4-12_kleiner_.pdf SN - 1610-3521 VL - 4 SP - 18 EP - 21 PB - Hanser CY - München AN - OPUS4-26424 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Weimann, Karin A1 - ext. Schulz, T. A1 - ext. Linß, E. A1 - Müller, A. A1 - Ludwig, H.-M. T1 - Gipsaufkommen in Bauschutt T2 - 18. ibausil (Internationale Baustofftagung) CY - Weimar, Germany DA - 2012-09-12 PY - 2012 AN - OPUS4-26425 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Niemax, Kay T1 - Considerations about the detection efficiency in inductively coupled plasma mass spectrometry N2 - Experimental investigations of analyte atomization, ionization and diffusion processes in the inductively coupled plasma applying single droplet introduction and optical emission spectroscopy provide hints how to improve the detection efficiency of inductively coupled plasma mass spectrometry. It is discussed how the flow, amount and type of injector gas, the size of droplets injected, the analyte mass, and the sampler interface of the mass spectrometer determine the position of analyte atomization and ionization as well as the magnitude of radial analyte ion diffusion at the interface of the mass spectrometer applied. KW - ICP-MS KW - Detection efficiency KW - Microdroplets PY - 2012 U6 - https://doi.org/10.1016/j.sab.2012.06.027 SN - 0584-8547 SN - 0038-6987 VL - 76 SP - 65 EP - 69 PB - Elsevier CY - Amsterdam AN - OPUS4-26426 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Polte, Jörg A1 - Tuaev, X. A1 - Wuithschick, M. A1 - Fischer, A. A1 - Thünemann, Andreas A1 - Rademann, K. A1 - Kraehnert, R. A1 - Emmerling, Franziska T1 - Formation mechanism of colloidal silver nanoparticles: analogies and differences to the growth of gold nanoparticles N2 - The formation mechanisms of silver nanoparticles using aqueous silver perchlorate solutions as precursors and sodium borohydride as reducing agent were investigated based on time-resolved in situ experiments. This contribution addresses two important issues in colloidal science: (i) differences and analogies between growth processes of different metals such as gold and silver and (ii) the influence of a steric stabilizing agent on the growth process. The results reveal that a growth due to coalescence is a fundamental growth principle if the monomer-supplying chemical reaction is faster than the actual particle formation. KW - Silver nanoparticle growth KW - Formation mechanisms KW - Nucleation KW - SAXS PY - 2012 U6 - https://doi.org/10.1021/nn301724z SN - 1936-0851 VL - 6 IS - 7 SP - 5791 EP - 5802 PB - ACS Publ. CY - Washington, DC, USA AN - OPUS4-26427 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Poli, Marco A1 - Grätz, Rainer A1 - Schröder, Volkmar T1 - An experimental study on safety-relevant parameters of turbulent gas explosion venting at elevated initial pressure N2 - The effects of a gas explosion in enclosures like vessels can be limited e.g. by gas explosion venting systems. The major design step of this constructive explosion protection method is to determine the required vent area, which depends significantly on whether turbulent combustion exists. However, current standards like NFPA 68 or EN 14994 are applicable only to limited boundary conditions and as far as possible only to laminar flame propagation. Difficulties arise in the assessment or predictability of gas explosion hazard when turbulence occurs. In this research especially venting at elevated initial pressure has been shown to accelerated flame propagations and therefore, to a considerably higher reduced pressure. Therefore, it is essential to provide a broader data base of turbulent combustion and explosion behavior to verify the existing rules or to determine their safety-relevant parameters. For a better safety assessment or design of protective systems the turbulent combustion and accelerated gas explosion behaviour of quiescent methane and hydrogen in air were investigated at initial pressures up to 8 bar using vessels up to 100 litres. In particular a systematic study was performed to investigate the influence of turbulence on the overpressure development during accelerated gas explosion. Moreover, the present study consider the position of the spark igniters, the burning velocity and the maximum pressure rise for different concentration of fuel as well as the size of orifice and/or vent area. A choice of experimental tests showed under the investigated conditions that not only turbulence inducing obstacles but also over sized vent areas could lead to an increased pressure development and therefore to an inacceptable safety state. KW - Gas explosion venting KW - Turbulent combustion KW - Obstacles PY - 2012 U6 - https://doi.org/10.1016/j.proeng.2012.07.398 SN - 1877-7058 VL - 42 SP - 109 EP - 120 PB - Elsevier CY - Amsterdam [u.a.] AN - OPUS4-26428 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Schmidt, Wolfram T1 - Start of round-robin test for cement testing in Africa / Start für Ringversuch zur Zementprüfung in Afrika KW - Africa KW - Cement KW - Concrete KW - Proficiency testing KW - Round robin PY - 2012 UR - http://www.bft-international.com/de/artikel/bft_2012-08_Start_fuer_Ringversuch_zur_Zementpruefung_in_Afrika_1468912.html SN - 0373-4331 SN - 1865-6528 N1 - Sprachen: Deutsch/Englisch - Languages: German/English VL - 08 SP - 54 EP - 55 PB - Bauverl. CY - Gütersloh AN - OPUS4-26429 LA - mul AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Plarre, Rüdiger T1 - Invasive and synanthropic - updated aspects on the natural and cultural history of the webbing clothes moth Tineola bisselliella (Lepidoptera: Tineidea) T2 - International Congress of Entomology CY - Daegu, South Korea DA - 2012-08-19 PY - 2012 AN - OPUS4-26460 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Habel, Wolfgang T1 - Advances in Developing Standards for Fibre-optic Sensors T2 - 6th European Workshop on Structural Health Monitoring CY - Dresden, Germany DA - 2012-07-03 PY - 2012 AN - OPUS4-26461 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Schilder, Constanze A1 - Kohlhoff, Harald A1 - Hofmann, Detlef A1 - Habel, Wolfgang T1 - Structure-Integrated Fibre-Optic Strain Wave Sensor for Pile Testing and Monitoring of Reinforced Concrete Piles T2 - 6th European Workshop on Structural Health Monitoring CY - Dresden, Germany DA - 2012-07-03 PY - 2012 AN - OPUS4-26462 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Wosniok, Aleksander A1 - Krebber, Katerina A1 - Glötzl, R. T1 - Temperature-corrected Determination of Mechanical Deformations in Geotechnical Structures Using Brillouin-based Fiber Optic Sensors T2 - 6th European Workshop on Structural Health Monitoring CY - Dresden, Germany DA - 2012-07-03 PY - 2012 AN - OPUS4-26463 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Daum, Werner A1 - Tkachenko, Viktoriya A1 - Habel, Wolfgang T1 - Sensitive pultrudierte Tragwerke N2 - - Innovative Konstruktionskonzepte für den Leichtbau verwenden neue Material-Kombinationen - Erweiterte Anwendung der Sensortechnik bei der Entwicklung neuer Materialen - Integration von Sensoren in die Struktur, um synergetische Effekte effizienter auszunutzen und Eigenschaften zu steuern T2 - 2. TSB-TransferTreff "Materialeffizienz und Gestaltung" CY - Berlin, Germany DA - 11.06.2012 PY - 2012 AN - OPUS4-26464 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Daum, Werner T1 - Erfahrungen mit der Flexibilisierung des Akkreditierungsbereichs auf Basis von ILAC G18 T2 - AkkreditierungsFORUM 2012 CY - Berlin, Germany DA - 2012-06-11 PY - 2012 AN - OPUS4-26465 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Schendler, Thomas T1 - Lernen aus Ereignissen T2 - ProcessNet-Jahrestagung 2012 CY - Karlsruhe, Germany DA - 2012-09-12 PY - 2012 AN - OPUS4-26466 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Gorbushina, Anna T1 - Rock-inhabiting fungi and phototrophs on bare rock surfaces - laboratory model systems in geomicrobiology T2 - Institutskolloquium CY - Dresden, Germany DA - 2012-09-11 PY - 2012 AN - OPUS4-26467 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Scheid, Marc A1 - Kusche, Christian A1 - Schröder, Volkmar A1 - Barth, Uli T1 - Tests on suitability of the ignition source "exploding wire" for the determination of explosion characteristics of combustible dusts in the 20 l sphere T2 - 9th International Symposium on Hazards, Prevention, and Mitigation of Industrial Explosions (9th ISHPMIE) CY - Kraków, Poland DA - 2012-07-22 PY - 2012 AN - OPUS4-26480 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Wehrstedt, Klaus-Dieter T1 - Havarie Containerschiff MSC "Flaminia" T2 - Sitzung ProcessNet- Arbeitsausschuss "Reaktionstechnik sicherheitstechnisch schwieriger Prozesse" CY - Frankfurt am Main, Germany DA - 2012-09-05 PY - 2012 AN - OPUS4-26481 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Wehrstedt, Klaus-Dieter T1 - IGUS: An Example of Good International Laboratory Co-Operation, Part 2 T2 - Sitzung ProcessNet-Arbeitsausschuss "Reaktionstechnik sicherheitstechnisch schwieriger Prozesse" CY - Frankfurt am Main, Germany DA - 2012-09-05 PY - 2012 AN - OPUS4-26482 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Malow, Marcus A1 - Rosenberg, Marika A1 - Michael-Schulz, Heike A1 - Wehrstedt, Klaus-Dieter T1 - Validierung der UN Test Methode N.5 zur Klassifizierung von Stoffen die bei Kontakt mit Wasser brennbare Gase entwickeln T2 - ProcessNet-Jahrestagung 2012 CY - Karlsruhe, Germany DA - 2012-09-10 PY - 2012 AN - OPUS4-26483 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Schulte, Petra T1 - Physikalische Gefahren: Einstufungskriterien, Prüfmethoden, Vergleich mit Transportvorschriften T2 - Volkswagen Coaching Seminar: GHS Einstufung & Kennzeichnung (Basis) CY - Wolfsburg, Germany DA - 2012-09-18 PY - 2012 AN - OPUS4-26484 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Schulte, Petra T1 - Gefahrgüter: Klassifizierung, Verpackung und Kennzeichnung T2 - Fortbildungsseminar der Sonderstelle für Aus- und Fortbildung "Beförderung gefährlicher Güter auf Binnengewässern" (S1) CY - Hanover, Germany DA - 2012-09-18 PY - 2012 AN - OPUS4-26485 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Adam, Christian A1 - Hermann, Ludwig T1 - Rohstoffe aus Abfällen: Phosphorrückgewinnung aus Abfällen T2 - ProcessNet Jahrestagung CY - Karlsruhe, Germany DA - 2012-09-10 PY - 2012 AN - OPUS4-26486 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Krause, Christina A1 - Yin, Huajie A1 - Schönhals, Andreas A1 - Wurm, Andreas A1 - Schick, Ch. T1 - Molecular dynamics of a discotic liquid crystal T2 - 7th Conference of the International Dielectric Society CY - Leipzig, Germany DA - 2012-09-03 PY - 2012 AN - OPUS4-26487 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Yin, Huajie A1 - Schönhals, Andreas T1 - Glass Transition and Segmental Dynamics of Ultrathin Poly(Bisphenol A Carbonate) Films T2 - 6th INTERNATIONAL CONFERENCE ON TIMES OF POLYMERS (TOP) & COMPOSITES CY - Ischia, Italy DA - 2012-06-10 PY - 2012 AN - OPUS4-26488 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Schartel, Bernhard T1 - Fire Retardant Composites: A Journey from Nano to Intermediate Scale T2 - Trends im Brandschutz und innovative Flammschutzmittel bei Kunststoffen CY - Würzburg, Germany DA - 2012-05-23 PY - 2012 AN - OPUS4-26489 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Marotzke, Christian T1 - Influence of the Interface on the Failure of Composites under Off-Axis Loading T2 - Interface 21, Kyoto Institute of Technology CY - Kyoto, Japan DA - 2012-08-06 PY - 2012 AN - OPUS4-26471 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Hösl, Simone A1 - Müller, Larissa A1 - Scheler, Ch. A1 - Sauter, G. A1 - Schlüter, H A1 - Jakubowski, Norbert A1 - Linscheid, M. T1 - Development and application of metal-tagged antibodies for efficient diagnostic methods T2 - 11th European Workshop on Laser Ablation CY - Gijón, Spain DA - 2012-06-16 PY - 2012 N1 - Geburtsname von Hösl, Simone: Hardt, S. - Birth name of Hösl, Simone: Hardt, S. N1 - Geburtsname von Müller, Larissa: Wäntig, L. - Birth name of Müller, Larissa: Wäntig, L. AN - OPUS4-26473 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Börno, Fabian A1 - Jakubowski, Norbert A1 - Panne, Ulrich A1 - Deiting, D. A1 - Kreyenschmidt, M. T1 - Laser Ablation Inductively Coupled Plasma Mass Spectrometry of Plastic Materials T2 - 11th European Workshop on Laser Ablation CY - Gijón, Spain DA - 2012-06-18 PY - 2012 AN - OPUS4-26474 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Lingott, Jana A1 - Riesemeier, Heinrich A1 - Reinholz, Uwe A1 - Buzanich, Günter A1 - Radtke, Martin A1 - Jakubowski, Norbert A1 - Panne, Ulrich T1 - Gadolinium-based MRI Contrast Agents in Biological Samples T2 - 11th European Workshop on Laser Ablation CY - Gijón, Spain DA - 2012-06-18 PY - 2012 AN - OPUS4-26475 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Bierkandt, Frank A1 - Jakubowski, Norbert A1 - Linscheid, M. T1 - Quantitative Analysis of Phosphorylated Proteins with LA-ICP-MS T2 - 11th European Workshop on Laser Ablation CY - Gijón, Spain DA - 2012-06-16 PY - 2012 AN - OPUS4-26476 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Nolze, Gert T1 - Microstructure description by EBSD using additional sources of information T2 - Besuch der Technischen Universität Dänemarks Kopenhagen (DTU Kopenhagen) CY - Copenhagen, Denmark DA - 2012-06-11 PY - 2012 AN - OPUS4-26477 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Nolze, Gert A1 - Payton, Eric A1 - Saliwan Neumann, Romeo A1 - Buchheim, Michaela T1 - Methodenkopplung mit EBSD T2 - DGM/DVM-Treffen: Mikrostrukturcharakterisierung im REM, Universität Hannover CY - Hanover, Germany DA - 2012-06-04 PY - 2012 AN - OPUS4-26478 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Nolze, Gert T1 - Schnelle Darstellung von Plolfiguren (stereografische und equal area-Projektion) T2 - DGM/DVM-Treffen: Mikrostrukturcharakterisierung im REM, Universität Hannover CY - Hanover, Germany DA - 2012-06-04 PY - 2012 AN - OPUS4-26479 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Schilder, Constanze A1 - Kusche, Nadine A1 - Schukar, Vivien A1 - Habel, Wolfgang ED - Liao, Y. ED - Jin, W. ED - Sampson, D.D. ED - Yamauchi, R. ED - Chung, Y. ED - Nakamura, K. ED - Rao, Y. T1 - Experimental qualification and validation of fibre optic strain sensors N2 - Strain sensors used in practical applications must provide reliable measurement data. To achieve this, sensor systems must be validated by using experimental facilities that enable physically independent statements about the performance of the sensor components. The paper describes qualification and validation procedures using a special facility to qualify surface-applied strain sensors and to achieve reliable sensor results. Based on examples concerning fibre optic strain sensor patches with and without FBG sensors, the determination of the strain gauge factor also under combined thermal and mechanical loading will be presented. These results are the basis for development of guidelines and standards. T2 - OFS2012 - 22nd International conference on optical fiber sensors CY - Beijing, China DA - 2012-10-15 KW - Fiber Bragg gratings KW - Sensors PY - 2012 U6 - https://doi.org/10.1117/12.968801 SN - 0277-786X SN - 1996-756X N1 - Serientitel: Proceedings of SPIE – Series title: Proceedings of SPIE IS - 8421 SP - 1 EP - 4(?) PB - SPIE, the International Society for Optical Engineering CY - Bellingham, Wash. AN - OPUS4-27321 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Rohwetter, Philipp A1 - Kielau, T. A1 - Lothongkam, Chaiyaporn A1 - Heidmann, G. A1 - Habel, Wolfgang ED - Liao, Y. ED - Jin, W. ED - Sampson, D.D. ED - Yamauchi, R. ED - Chung, Y. ED - Nakamura, K. ED - Rao, Y. T1 - All fibre-optic simultaneous detection of optical and acoustic emission from partial discharges in silicone elastomer N2 - In high-voltage facilities of power stations and transmission networks, discharge activities leading to catastrophic failure can occur. Early detection of partial discharges (PD) in polymeric insulations of HV cable terminations and joints is therefore increasingly important. This paper describes a monitoring methodology to detect PD activity in silicone elastomer by two independent fibre-optic sensor types. Fluorescent fibre-based sensors are sensitive to plasma optical emission already at the onset of PD while an acoustic fibre-optic sensor responds to acoustic emission from the PD during its progression. The sensitivities of both sensor types are compared, and it is demonstrated that they provide complementary information for fibre-optic sensor-based monitoring of high-voltage cable accessories.© (2012) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only. T2 - OFS2012 - 22nd International conference on optical fiber sensors CY - Beijing, China DA - 2012-10-15 KW - Fiber optic sensors KW - Plasma KW - Sensors KW - Fibre-optic condition monitoring KW - Partial discharge KW - Acoustic emission KW - High-voltage breakdown KW - Silicone elastomer KW - Stress cone KW - Fluorescent fibre KW - High voltage cable accessories PY - 2012 U6 - https://doi.org/10.1117/12.974941 SN - 0277-786X SN - 1996-756X N1 - Serientitel: Proceedings of SPIE – Series title: Proceedings of SPIE IS - 8421 SP - 8421B9-1 - 8421B9-4 PB - SPIE, the International Society for Optical Engineering CY - Bellingham, Wash. AN - OPUS4-27323 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Gornushkin, Igor B. A1 - Shabanov, Sergej V. A1 - Merk, Sven A1 - Demidov, Alexandr A1 - Panne, Ulrich A1 - Omenetto, N. T1 - Diagnostic and Modeling of Laser Induced Breakdown Spectroscopy Based on Optical Tomography T2 - SCIX (FACSS) CY - Kansas City, MO, USA DA - 2012-09-30 PY - 2012 AN - OPUS4-27325 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Andrade, M. A. B. A1 - Stindt, Arne A1 - Buurman, Merwe A1 - Panne, Ulrich A1 - Riedel, Jens A1 - Adamowski, J. C. T1 - Numerical and Experimental Determination of the Sound Pressure Distribution in Single-Axis Acoustic Levitators T2 - IUS CY - Dresden, Germany DA - 2012-10-07 PY - 2012 N1 - Geburtsname von Buurman, Merwe: Albrecht, M. - Birth name of Buurman, Merwe: Albrecht, M. AN - OPUS4-27326 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Stindt, Arne A1 - Buurman, Merwe A1 - Panne, Ulrich A1 - Riedel, Jens T1 - CO2-Laser Atmospheric Pressure Ionization of Acoustically Levitated Droplets T2 - DGMS Jahrestagung CY - Poznan, Poland DA - 2012-03-04 PY - 2012 N1 - Geburtsname von Buurman, Merwe: Albrecht, M. - Birth name of Buurman, Merwe: Albrecht, M. AN - OPUS4-27327 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Stindt, Arne A1 - Buurman, Merwe A1 - Panne, Ulrich A1 - Riedel, Jens T1 - CO2-Laser Atmospheric Pressure Ionization of Acoustically Levitated Droplets T2 - Doktorandenseminar Spektroskopie und Spurenanalytik 2012 CY - Mainz, Germany DA - 2012-07-09 PY - 2012 N1 - Geburtsname von Buurman, Merwe: Albrecht, M. - Birth name of Buurman, Merwe: Albrecht, M. AN - OPUS4-27328 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Stindt, Arne A1 - Buurman, Merwe A1 - Panne, Ulrich A1 - Riedel, Jens T1 - CO2-Laser Atmospheric Pressure Ionization of Acoustically Levitated Droplets T2 - Tokyo Tech (invited Talk) CY - Tokyo, Japan DA - 2012-09-28 PY - 2012 N1 - Geburtsname von Buurman, Merwe: Albrecht, M. - Birth name of Buurman, Merwe: Albrecht, M. AN - OPUS4-27329 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Deisinger, U. A1 - Heunisch, Andreas A1 - Roosen, A. A1 - Rabe, Torsten T1 - Fertigung von Multilayern mit Kavitäten durch Thermokompression und Klebeverfahren T2 - DKG-Symposium "Fügen von Keramik" CY - Erlangen, Germany DA - 2012-12-04 PY - 2012 AN - OPUS4-27330 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Eslahian, Kyriakos-Alexandros A1 - Maskos, M. T1 - Colloid-solvent interactions characterized by Thermal Field-Flow Fractionation T2 - Polydays 2012 CY - Berlin, Germany DA - 2012-09-30 PY - 2012 AN - OPUS4-27311 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Robertson, Daniela A1 - Schröder, Hartmut A1 - Böhning, Martin A1 - Brummermann, K. A1 - Kaundinya, I. A1 - Saathoff, F. T1 - Test method for the assessment of the service life of polymeric geosynthetic barriers (GBR-P) for road tunnels T2 - Euro GEO 5 - 5th European geosynthetics congress CY - Valencia, Spain DA - 2012-09-16 KW - Durability KW - Oxidation KW - Acceleration ageing KW - GBR-P PY - 2012 SN - 978-0415-64340-5 VL - 1 IS - Topic: Transport SP - 150 EP - 154 AN - OPUS4-27312 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Eslahian, Kyriakos-Alexandros A1 - Maskos, M. T1 - New insight into colloid-solvent interactions anayzed by Thermal field-flow fractionation T2 - New Directions in Surface Analysis CY - Philadelphia, PA, USA DA - 2012-08-17 PY - 2012 AN - OPUS4-27313 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Thiermann, Raphael A1 - Maskos, M. T1 - Monodisperse, multifuncional polymersomes in micromixers for biomedical imaging: Continuous synthesis, loading, and self-assembly investigation T2 - ACS National Meeting, Materials for Health and Medicine CY - Philadelphia, PA, USA DA - 2012-08-17 PY - 2012 AN - OPUS4-27314 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Bleul, Regina A1 - Thiermann, Raphael A1 - Bachran, D. A1 - Maskos, M. T1 - Magnetic Polymersomes - Multifunctional Carriers for Biomedical Applications T2 - Magnetic Carrier Meeting CY - Minneapolis, MN, USA DA - 2012-05-21 PY - 2012 AN - OPUS4-27315 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Koshkina, Olga A1 - Bantz, C. A1 - Kasper, J. A1 - Kirkpatrick, C. J. A1 - Docter, D. A1 - Stauber, R. H. A1 - Hatami, Soheil A1 - Resch-Genger, Ute A1 - Maskos, M. T1 - Multifunctional Fluorescent Poly(organosiloxane) Nanoparticles; Synthesis and Characterization in Biological Environments by Dynamic Light Scattering T2 - Polydays 2012 CY - Berlin, Germany DA - 2012-09-30 PY - 2012 AN - OPUS4-27316 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - GEN A1 - Recknagel, Christoph T1 - Potential of dynamic-mechanical analysis toward a complementary material and system testing approach for structural glazing N2 - Dynamic-mechanical material analysis as a basis for a general performance exploration complemented by system testing under superimposed climatic and mechanical loading seems to be a promising interdependent test approach addressing the performance behavior of construction sealants under more realistic conditions. With this contribution an attempt is made to adapt dynamic-mechanical material analysis, which has been already successfully validated for different construction types of expansion joint systems in road and bridge engineering, to the field of construction sealants for building façades. Test results from dynamic-mechanical material analysis characterizing the temperature-dependent, deformation-dependent, and frequency-dependent behavior of structural sealant materials are presented and exemplarily discussed for three different sealant products. An attempt is made to address unknown material characteristics in the multi-dimensional loading matrix representing practical use conditions. Furthermore, the applicability of this test approach and its various complex test modes for the exploration of technological performance and especially estimation of fatigue behavior is verified in several examples. Based on this fundamental material exploration, it is planned to complement the dynamic-mechanical assessment methodology by means of system tests on a section of a structural glazing system subjected to a simplified but superimposed loading function. The technical fundamentals and the procedure proposed to develop an adequate system test mode are introduced. The motivation for these investigations is to identify the actual mechanical system behavior under load combinations and for specimens that both closer resemble reality. The objective is to achieve a consistent and interdependent test program complementary to the existing methodology. Finally, the study is meant to initiate further progress toward a performance-related methodology which considers the design, specification, material, and system selection. KW - Sealants KW - Structural glazing KW - Performance assessment KW - Material characterization KW - Dynamic-mechanical testing KW - System test method KW - Superimposed loading KW - Mechanical characteristics KW - Capability evaluation KW - Durability evaluation PY - 2012 SN - 978-0-8031-7557-0 U6 - https://doi.org/10.1520/STP1545-EB N1 - Serientitel: Journal of ASTM International – Series title: Journal of ASTM International VL - 4 IS - STP1545 SP - 404 EP - 431 CY - West Conshokocken, PA, USA AN - OPUS4-27317 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Marzok, Ulrich A1 - Müller, Ralf A1 - Schadrack, Reinhard A1 - Krauhausen, M. A1 - Reetz, R. T1 - Hochtemperatur-Laserprofilometer für keramische Proben T2 - DKG-Jahrestagung 2012 CY - Nuremberg, Germany DA - 2012-03-05 PY - 2012 AN - OPUS4-27318 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Füllbrandt, Marieke A1 - von Klitzing, R. A1 - Schönhals, Andreas T1 - Probing the phase transition of aqueous solutions of linear low molecular weight poly(N-isopropylacrylamide) by dielectric spectroscopy N2 - Aqueous solutions of linear poly(N-isopropylacrylamide) (pNIPAM) with different polymer concentrations are investigated using dielectric spectroscopy in a frequency range of 10-1 Hz to 106 Hz at temperatures from 15 °C to 50 °C. The phase transition of pNIPAM is monitored by both the temperature (T) and the frequency (ƒ) dependence of the conductivity spectra σ*(ƒ, T). First, the T-dependence of the DC conductivity σ'DC is investigated and the phase transition ('coil-to-globule' transition) at the lower critical solution temperature (LCST) of pNIPAM is deduced by a change in the T-dependence of σ'DC. The observed hysteresis between heating and cooling runs is discussed in detail in dependence on both the polymer concentration and the rate. Second, for the first time a pronounced ƒ-dependence of the real part of conductivity σ' is observed at temperatures above the LCST whereas at temperatures below the LCST the conductivity spectra are more or less similar to that of water (frequency independent). This ƒ-dependence of σ' is assigned to the formation of a kind of soft particle ('globular structure') at the LCST which is more or less impermeable to water and ions therefore giving rise to Maxwell–Wagner–Sillars (MWS) polarization effects (blocking of charges at the soft particle). The dependence on the concentration is studied in detail. PY - 2012 U6 - https://doi.org/10.1039/c2sm26826d SN - 1744-683X VL - 8 IS - 48 SP - 12116 EP - 12123 PB - RSC Publ. CY - Cambridge AN - OPUS4-27320 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Ried, Peter A1 - Gaber, Martin A1 - Müller, Ralf A1 - Paul, Martin A1 - Dittrich, Matthias A1 - Meyer-Scherf, Ronald A1 - Schmidtchen, Ulrich A1 - Pflaum, S. A1 - Deubener, J. A1 - Gröschl, Christian T1 - Hydrogen Diffusion Through Glass - A methodical Approach T2 - 11th ESG Conference CY - Maastricht, Netherlands DA - 2012-06-04 PY - 2012 N1 - Geburtsname von Meyer-Scherf, Ronald: Meyer, R. - Birth name of Meyer-Scherf, Ronald: Meyer, R. AN - OPUS4-27371 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Golze, Manfred T1 - Vergleichsversuche - Methoden, Erfahrungen, Bewertung T2 - Austrolab-Workshop CY - Vienna, Austria DA - 2012-12-12 PY - 2012 AN - OPUS4-27373 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Köppen, Robert A1 - Riedel, Juliane A1 - Proske, Matthias A1 - Drzymala, Sarah A1 - Rasenko, Tatjana A1 - Durmaz, V. A1 - Weber, M. A1 - Koch, Matthias T1 - Photochemical trans-/cis-isomerization and quantitation of zearalenone in edible oils N2 - The emphasis of the present work was to investigate the photochemical conversion of trans- to cis-zearalenone in edible oils under real-life conditions. For quantitation purposes a cis-zearalenone standard was synthesized and characterized for its identity and purity (≥95%) by 1H NMR, X-ray crystallography, HPLC fluorescence and mass spectrometric detection. In a sample survey of 12 edible oils (9 corn oils, 3 hempseed oils) from local supermarkets all corn oils contained trans-zearalenone (median 194 µg/kg), but no cis-zearalenone was detected. For alteration studies trans-zearalenone contaminated corn oils were exposed to sunlight over 4 and 30 weeks, revealing an obvious shift toward cis-zearalenone up to a cis/trans ratio of 9:1 by storage in colorless glass bottles. Irradiation experiments of trans-zearalenone in different organic solvents confirmed the preferred formation of cis-zearalenone possibly caused by entropic effects rather than by enthalpic entities as investigated by quantum chemical and classical force field simulations. KW - Fusarium mycotoxins KW - Food KW - Analysis KW - Occurrence PY - 2012 U6 - https://doi.org/10.1021/jf3037775 SN - 0021-8561 SN - 1520-5118 VL - 60 IS - 47 SP - 11733 EP - 11740 PB - American Chemical Society CY - Columbus, Ohio AN - OPUS4-27375 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Wloka, Monika T1 - Stand der Überarbeitung weitere Normen der Konformitätsbewertung, Nutzung der Normen in Europa und international, Übergangsregeln T2 - Akkreditierungsforum 2012 CY - Berlin, Germany DA - 2012-06-11 PY - 2012 AN - OPUS4-27376 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Wloka, Monika T1 - Überblick über neue Normen für die Akkreditierung T2 - Akkreditierungsforum 2012 CY - Berlin, Germany DA - 2012-06-11 PY - 2012 AN - OPUS4-27377 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Gründer, Klaus-Peter A1 - Menrad, Andreas A1 - Kadoke, Daniel T1 - Bestimmung des Verformungsverhaltens vorgeschädigter Gefahrgutumschließungen aus Kunststoff N2 - Verpackungen für gefährliche Güter werden je nach Zweckbestimmung, Anwendungsbereich bzw. dem Grad der Gefährdung aus sehr unterschiedlichen Werkstoffen hergestellt. Für gefährliche Flüssigkeiten sind u.a. Verpackungen aus Kunststoff (Kanister) vorgesehen. Für deren Zulassung als Transport- oder Lagerbehälter sind verschiedene experimentelle Prüfungen erforderlich. Die Innendruckprüfung (hydraulisch) ist eine dieser vorgeschriebenen Prüfungen. Im Rahmen der vorliegenden Darstellung wurden Untersuchungen an extrusionsblasgeformten Kanistern aus Polyethylen hoher Dichte (HDPE) verschiedener Typen durchgeführt. Ziel der Arbeiten ist es, einen Eignungsnachweis bezüglich Behälterkonstruktion, Werkstoffeigenschaften und Einsatzbedingungen im Sinne einer sicherheitstechnischen Bauartzulassung zu führen. Ein Schwerpunkt war desweiteren die Untersuchung des Einflusses unterschiedlich schädigender Flüssigkeiten auf die mechanischen Eigenschaften des HDPE-Werkstoffes. In Experimenten zum Nachweis der Behältersicherheit verwendet man stellvertretend für die Originalflüssigkeiten sogenannte Standardflüssigkeiten. Diese sind durchaus gefährlicher als die Originalflüssigkeiten, ersparen aber für Prüfzwecke die Bevorratung einer großen Anzahl der unterschiedlichen Originalflüssigkeiten und deren Transport zum Ort der Prüfung. Mit Standardflüssigkeiten werden die erforderlichen Einwirkzeiten auf den Kunststoff von 6 Monaten bei 23 °C auf 3 Wochen unter 40 °C verkürzt. Standardflüssigkeiten sind Netzmittellösung, Essigsäure, Salpetersäure, Kohlenwasserstoffgemisch (White Spirit) und Butylacetat. Die mit unterschiedlichen Standardflüssigkeiten vorgeschädigten Kunststoffbehälter wurden anschließend der Innendruckprüfung ausgesetzt. Das Hauptaugenmerk der vorliegenden Abhandlung konzentriert sich als Teilaspekt im Rahmen unmfangreicher Materialuntersuchungen von Kunststoffumschließungen auf die experimentelle Form- und Verformungsanalyse der Kanister mittels optischer 3D-Verfahren. Diese ist insbesondere für den Vergleich mit den FE-Simulationsergebnissen und zwischen verschiedenen Wekstoffen von Interesse. Die Werkstoffe haben ein unterschiedliches Schwell- und Auslängungsverhalten. Es ist wichtig zu wissen, ob es trotz unterschiedlicher Wanddickensteuerungen oder gerade mit diesen möglich ist, eine 'ähnliche' Produktgestalt zu ermöglichen. T2 - 16. GMA/ITG-Fachtagung 'Sensoren und Messsysteme' CY - Nürnberg, Germany DA - 2012-05-22 KW - Gefahrgutumschließung KW - Kunststoff KW - Verformungsanalyse KW - Optische 3D-Verfahren PY - 2012 SN - 978-3-9813484-0-8 U6 - https://doi.org/10.5162/sensoren2012/P2.1 SP - 722 EP - 729 CY - Wunstorf AN - OPUS4-27378 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Wloka, Monika T1 - Neue Normen - worauf müssen sich akkreditierte Stellen einstellen? T2 - Akkreditierungsforum 2012 CY - Berlin, Germany DA - 2012-06-11 PY - 2012 AN - OPUS4-27379 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Thiele, Joachim A1 - Wloka, Monika T1 - The European system for product safety and accreditation T2 - Delegation from Quality & Technical Supervision Bureau of Inner Mongolia Autonomous Region at BAM CY - Berlin, Germany DA - 2012-08-31 PY - 2012 AN - OPUS4-27380 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Rohwetter, Philipp A1 - Lothongkam, Chaiyaporn A1 - Siebler, Daniel A1 - Habel, Wolfgang T1 - Faseroptische Sensoren zur akustischen Detektion von Teilentladungen in hochspannungstechnischen Anlagen und Betriebsmitteln N2 - Konventionelle elektrische Verfahren zur Erfassung von Teilentladungen (TE) in hochspannungstechnischen Bauteilen und Betriebsmitteln erfordern elektromagnetisch ungestörte Messbedingungen und sind für die Überprüfung von Anla-gen während des laufenden Betriebs nicht unproblematisch. Daher werden für Prüfung und Überwachung im Feld zu-nehmend unkonventionelle elektromagnetische (HF, VHF, UHF) und akustische Detektionsverfahren eingesetzt. Wegen ihrer prinzipiellen Immunität gegen elektromagnetische Störungen sind darüber hinaus faseroptische Verfahren der TE-Detektion in Erprobung. Im vorliegenden Beitrag werden zwei Typen akustisch-faseroptischer Sensoren (a-FOS) vorgestellt und auf ihre Eignung untersucht, Teilentladungen in elastomeren Isolierkörpern, wie etwa Silikon-Feldsteuerelementen von Kabelgarnituren, zu detektieren. Die hier präsentierten Laborergebnisse zeigen, dass die zur Detektion von TE mit kritischer Intensität (z.B. in Kabelgarnituren) notwendige Empfindlichkeit erreicht werden kann. Darauf basierend wird das Potential der faseroptisch-akustischen Detektion von TE in der hochspannungstechnischen Zustandsüberwachung allein und in Kombination mit fasergekoppelten fluoreszenzoptischen Sensoren diskutiert. T2 - Diagnostik elektrischer Betriebsmittel CY - Fulda, Germany DA - 2012-11-15 PY - 2012 UR - http://www.vde-verlag.de/proceedings-de/453465075.html SN - 978-3-8007-3465-8 SP - 1 EP - 6(?) PB - VDE Verlag GmbH AN - OPUS4-27391 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Herbst, Tristan A1 - Beck, T. A1 - Schneider, S. A1 - Flassenberg, G. T1 - Nachhaltigkeitsanalyse für das Mauerwerksrecycling N2 - In Deutschland fällt mittelfristig eine nicht unerhebliche Menge an Mauerwerksbruch an. Im Sinne einer nachhaltigen Kreislaufwirtschaft sind diese Restmassen zukünftig einem möglichst hochwertigen Recycling zuzuführen. Im Rahmen des IGF-Forschungsvorhabens 17022 N der Forschungsvereinigung Porenbetonindustrie e.V., Berlin, wird im Gesamtkontext “SIM Stoffkreislauf im Mauerwerksbau“ die Nachhaltigkeit verschiedener Recyclingoptionen für Mauerwerksbruch unter Einbeziehung der Hauptwandbausteinarten Ziegel, Kalksandstein, Porenbeton und Leichtbeton sowie unter Beachtung material- und verfahrenstechnischer sowie ökologischer, ökonomischer und sozialer Aspekte ganzheitlich untersucht und bewertet. Auf Grundlage der dabei gewonnenen Erkenntnisse wird ein rechnergestütztes Analysetool zur Nachhaltigkeitsbewertung für das Mauerwerksrecycling entwickelt. Auf diesem Wege sollen im Sinne der aktuellen gesetzlichen Vorgaben nachhaltige Stoffkreisläufe im Mauerwerksbau geschlossen und somit letztlich die Deponierung von Mauerwerksrestmassen vermieden werden.------------------------------------------------------------------------------------------------------------------------------------------------- In Germany, a not unimportant quantity of masonry rubble is generated in the medium term. With regard to a sustainable closed substance cycle waste management, these rest masses have to be recycled if possible. Within the IGF research project “Sustainability Analysis for the Recycling of Masonry”, different recycling options will be assessed with regard to their sustainability performance. In doing so, the main kinds of masonry units (clay units, calcium silicate units, autoclaved aerated concrete units, aggregate concrete units), their material properties, the processing technologies as well as ecological, economic and social aspects will be considered. Based on the results, a web-based tool will be developed to assess the sustainability of different recycling options for masonry rubble. PY - 2012 U6 - https://doi.org/10.1002/dama.201200549 SN - 1432-3427 SN - 1437-1022 VL - 16 IS - 5 SP - 242 EP - 246 PB - Ernst CY - Berlin AN - OPUS4-27392 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - GEN A1 - Yevtushenko, Oleksandra A1 - Bäßler, Ralph ED - Lexow, J. ED - Kishi, T. ED - Kitagawa, M. ED - Böllinghaus, T. T1 - Electrochemical studies on pitting corrosion on Cr13 steel exposed to CO2 and artificial brine with high chloride concentration N2 - Within the project COORAL (German acronym for 'CO2 purity for capture and storage') first studies on piping steels exposed to CO2 and artificial brine with high chloride concentration have been carried out. Corrosion behavior of martensitic Cr13 steel (1.4034) was investigated in a corrosive environment (artificial saline brine, T = 60 °C, CO2-flow rate 3 – 5 L/h, atmospheric pressure, exposure times from 1 h up to 14 days) using electrochemical and metallographic techniques. Different corrosion kinetics were observed as a function of exposure times and chloride concentration in the artificial brine. In CO2-saturated brine pitting corrosion was observed at free corrosion potential, whereas in the brine without addition of NaCl a stable passive layer built up. Predictions about corrosion mechanism are made and verified by means of surface analytical techniques. KW - Stainless steel KW - Pitting corrosion KW - Electrochemistry KW - Carbon dioxide PY - 2012 SN - 978-3-642-23347-0 SN - 978-3-642-23348-7 SP - 45 EP - 53 PB - Springer CY - Berlin Heidelberg AN - OPUS4-27393 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Thiele, Joachim T1 - EU Experience in Implementing a Common Approach for Accreditation and Conformity Assessment in Achieving the EU Single Market T2 - Workshop on the "ROLE OF ACCREDITATION AND CONFORMITY ASSESSMENT TO SUPPORT THE WORK OF REGULATORS" CY - Bandar Seri Begawan, Brunei DA - 2012-03-12 PY - 2012 AN - OPUS4-27394 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Wolff, Dietmar T1 - Behavior of rubber seals at low temperatures and neutron radiation shielding material under influence of gamma radiation T2 - Savannah River National Laboratory Workshop CY - Aiken, SC, USA DA - 2012-12-03 PY - 2012 AN - OPUS4-27395 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Steppan, Enrico A1 - Kromm, Arne A1 - Kannengießer, Thomas T1 - High-energy synchrotron study of the stress-strain behavior of hydrogen-charged high strength steel T2 - Visual-JW2012 - International Symposium on Visualization in Joining & Welding Science through Advanced Measurements and Simulation CY - Osaka, Japan DA - 2012-11-28 KW - High strength structural steel KW - Hydrogen diffusion KW - Hydrogen assisted cold cracking KW - Energy dispersive X-ray diffraction PY - 2012 IS - IWIS-17 SP - 228 EP - 229 AN - OPUS4-27396 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Witt, Jens A1 - Schukar, Marcus A1 - Krebber, Katerina A1 - Demuth, J. A1 - Pazoutová, H. A1 - Sasek, L. A1 - Santostefano, N. A1 - Fiore, L. A1 - Uotila, J. A1 - Pietrowski, P. T1 - POF sensors for personal protective equipment (PPE) T2 - POF 2012 - 21st International conference on plastic optical fibers CY - Atlanta, Georgia, USA DA - 2012-09-10 KW - Physiological sensor KW - Heart rate KW - Respiratory rate KW - Photoplethysmography KW - Technical textile PY - 2012 SP - 333 EP - 338 AN - OPUS4-27397 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Bellon, Carsten A1 - Deresch, Andreas A1 - Gollwitzer, Christian A1 - Jaenisch, Gerd-Rüdiger T1 - Radiographic simulator aRTist: version 2 N2 - Computer simulation of radiography can be used for different purposes in NDT, such as qualification of NDT systems, optimization of radiographic parameters, feasibility analysis, model-based data interpretation, and training of NDT/NDE personnel. BAM has been working on modeling in the field of radiographic testing for many years. With the gathered theoretical background and the familiarity with practical requirements of industrial application the simulation software aRTist has been developed. This analytical simulator includes a description of the radiation source, the interaction of radiation with test pieces and flaws, and the detection process with special focus on film and digital industrial radiology. It features high processing speed with nearinteractive frame rates and a high level of realism. Here we focus on the recent developments of the simulator, notably the release of aRTist version 2. Extended functionality regarding automated virtual computed tomography now allows for arbitrary scan paths. Another program extension supports reliability investigations and provides a user interface for planning automatic simulations with varying parameters and defects. T2 - 18th WCNDT - World conference on nondestructive testing CY - Durban, South Africa DA - 16.04.2012 KW - X-ray imaging KW - Radiographic testing KW - Simulation KW - Computed tomography PY - 2012 SN - 978-0-620-52872-6 SP - 1 EP - 7 (Paper 333) AN - OPUS4-27398 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Deresch, Andreas A1 - Jaenisch, Gerd-Rüdiger A1 - Bellon, Carsten A1 - Warrikhoff, A. T1 - Simulating X-ray spectra: from tube parameters to detector output N2 - A model is discussed which describes the generation of X-rays in conventional tubes using tabulated bremsstrahlung energy spectra depending on three variables: the target atomic number, the incident electron kinetic energy, and the fraction of energy radiated. Additionally a parameter-free description of the characteristic radiation is included. The constructed model includes technical tube parameters like kilovoltage, target material, and angles of electron incidence and photon emission to also account for self-absorption in the target, as well as radiographic parameters like filtering. In order to verify model results, detector response is also considered. The validity of the proposed model is shown by measurements. Future work includes the extension of the model to transmission targets. This research was supported by the German Federal Ministry of Economics and Technology under contract MNPQ transfer II D 5-30/06. T2 - 18th WCNDT - World conference on nondestructive testing CY - Durban, South Africa DA - 2012-04-16 KW - X-ray KW - Spectrum KW - Simulation PY - 2012 SN - 978-0-620-52872-6 SP - 1 EP - 8 (Paper 336) AN - OPUS4-27399 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Gollwitzer, Christian A1 - Bellon, Carsten A1 - Deresch, Andreas A1 - Jaenisch, Gerd-Rüdiger A1 - Baron, H.-U. A1 - Ewert, Uwe T1 - Reliability investigations of radiographic testing using aRTist as a simulation tool N2 - Within the framework of the European project PICASSO, the radiographic simulator aRTist (analytical Radiographic Testing inspection simulation tool) developed by BAM has been extended for reliability assessment of film and digital radiography. A simulation supported probability of detection (POD) methodology has been developed and the validity of the approach has been studied using an application from the aeronautics industry. An experimental POD has been determined with the help of a specialized software tool, developed to aid with the collection of large series of POD data. The resulting POD is compared to simulations of the same setting using aRTist and the newly available module for simulation supported POD. A quantitative agreement within a few percent is achieved between the experimental and the simulation supported POD. T2 - 18th WCNDT - World conference on nondestructive testing CY - Durban, South Africa DA - 2012-04-16 KW - X-ray imaging KW - Probability of detection KW - Simulation PY - 2012 SN - 978-0-620-52872-6 SP - 1 EP - 10 (Paper 338) AN - OPUS4-27400 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - van de Kreeke, Johannes T1 - Statistics for ILCs with few participants -some differences- T2 - EQALM-Workshop CY - Copenhagen, Denmark DA - 2012-10-25 PY - 2012 AN - OPUS4-27381 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - van de Kreeke, Johannes T1 - DIN EN ISO/IEC 17043:2010 Konformitätsbewertung - Allgemeine Anforderungen an Eigungsprüfungen T2 - Jahrestagung VUP CY - Neckarsulm, Germany DA - 2012-09-13 PY - 2012 AN - OPUS4-27382 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - RPRT A1 - Lang, Jacqueline A1 - Meyer-Plath, Asmus T1 - Charakterisierung von nanoskaligen Eigenschaften chemischer Stoffe als Grundlage für die Regulierung im Rahmen der Verordnung (EG) Nr. 1907/2006 (REACH) N2 - Die vorliegende Literaturarbeit zeigt auf, inwiefern die in der Verordnung 440/2008 EG enthaltenen Prüfnachweise für Nanomaterialien anwendbar sind. In einem ersten Teil werden die verschiedenen verwendeten Begriffe für Nanomaterialien erklärt und die Klassifizierung der Nanomaterialien erläutert. Daran schließen sich die Beschreibung der physikalisch-chemischen Eigenschaften von Nanomaterialien und die Charakterisierbarkeit der Nanoskaligkeit mit den in der Verordnung 440/2008 genannten Prüfmethoden an. Im letzten Teil werden die relevanten Eigenschaften von Nanomaterialien aus Sicht internationaler Institutionen beschrieben und die möglichen Bestimmungsmethoden aufgeführt. Abschließend wird analysiert, welche vorhandenen Prüfmethoden der Verordnung 440/2008 auf Nanomaterialien anwendbar sind und welche weiteren Eigenschaften im Rahmen einer Regulierung der Nanomaterialien geprüft werden sollten.---------------------------------------------------------------------------------------------------------------------------------- The presented literature documentation shows the applicability of the test methods listed in regulation EC 440/2008. The first part explains different terms and definitions of nanomaterials and the nanomaterials' classifications. Afterwards the physico-chemical properties of nanomaterials are described and the feasibility to characterise substances at nanoscale with the test methods listed in regulation 440/2008 is assessed. In the last part relevant properties of nanomaterials from the perspective of international institutions are listed and possible methods for the determination are given. Finally, it is analysed which test methods of the regulation EC 440/2008 are applicable to nanomaterials and which further properties should be investigated in the frame of the regulation of nanomaterials. KW - REACH KW - Nanomaterialien KW - Charakterisierung KW - Physikalisch-chemische Daten KW - Nanomaterials KW - Characterisation KW - Physico-chemical data PY - 2012 UR - http://www.baua.de/de/Publikationen/Fachbeitraege/F2261.pdf?__blob=publicationFile&v=3 SP - 1 EP - 112 CY - Dortmund AN - OPUS4-27383 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Stephan, Martina A1 - Neitsch, Marcel T1 - Ergebnisse des AK-Rekonditionierung T2 - Information Qualitätssicherung und Überwachung (INQÜ), BAM CY - Berlin, Germany DA - 2012-09-11 PY - 2012 AN - OPUS4-27384 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Stephan, Martina T1 - Leitfaden für Prüfungen T2 - Information Qualitätssicherung und Überwachung (INQÜ), BAM CY - Berlin, Germany DA - 2012-09-11 PY - 2012 AN - OPUS4-27385 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Stephan, Martina A1 - Neitsch, Marcel T1 - Revision 3 der BAM-GGR 001 T2 - Information Qualitätssicherung und Überwachung (INQÜ), BAM CY - Berlin, Germany DA - 2012-09-11 PY - 2012 AN - OPUS4-27386 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Stephan, Martina T1 - Leitfaden für Prüfungen T2 - AK-Prüfstellen, BAM CY - Berlin, Germany DA - 2012-09-13 PY - 2012 AN - OPUS4-27387 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Hofmann-Böllinghaus, Anja A1 - Dülsen, Steffen ED - Andersson, P. ED - Sundström, B. T1 - Fire safety performance of buses T2 - FIVE 2012 - 2nd International conference on fires in vehicles CY - Chicago, USA DA - 2012-09-27 KW - Large scale fire tests KW - Numerical simulation KW - Bus interior materials KW - Smoke toxicity KW - Recommendations PY - 2012 SN - 978-91-87017-54-4 SN - 0284-5172 SP - 147 EP - 158 AN - OPUS4-27388 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Hofmann-Böllinghaus, Anja A1 - Dülsen, Steffen T1 - Gefahren bei Busbränden - Empfehlungen zur Verbesserung der Sicherheit N2 - Der schwere Busbrand 2008 in der Nähe von Hannover, bei dem 20 der 32 Fahrgäste ums Leben kamen, hat gezeigt, dass die aktuellen Brandschutzvorschriften für Busse die Selbstrettung der Passagiere nicht gewährleisten können. In einem von der Bundesanstalt für Straßenwesen (BASt) geförderten Forschungsprojekt wurden die aktuellen Brandschutzvorschriften untersucht und Empfehlungen zur Verbesserung der Brandsicherheit in Bussen entwickelt. Es wurden zahlreiche Versuche im kleineren Maßstab an Busmaterialien durchgeführt und Vergleiche zu den Anforderungen an Schienenfahrzeuge gezogen sowie Versuche im Realmaßstab an Bussitzen und im Motorraum eines Linienbusses. Begleitend zu den experimentellen Untersuchungen wurden Brandverläufe berechnet, um besonders gefährliche Szenarien zu identifizieren und mögliche Maßnahmen zu untersuchen. KW - Busbrände KW - Experimentelle Untersuchungen KW - CFD KW - Empfehlungen PY - 2012 SN - 2191-0073 VL - 2 IS - 9 SP - 33 EP - 40 PB - Springer-VDI-Verl. CY - Düsseldorf AN - OPUS4-27389 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Pecher, Heike Susanne A1 - Zimathies, Annett A1 - Weller, Michael G. T1 - Oligoepoxide-based monoliths: synthesis and application as affinity capillary column for enrichment of immunoglobulin G N2 - A series of new epoxide-based monoliths is synthesized by self-polymerization of polyglycerol polyglycidyl ether as porous support for affinity chromatography. Porosity and mean pore sizes are investigated as a function of the porogen ratio and analyzed by mercury porosimetry. The morphologies are visualized by environmental scanning electron microscope. With a particularly rigid monolith prepared with 75 vol% porogen (66% porosity and 12 µm mean pore size), a capillary column (0.5 mm ID) is prepared and directly functionalized with recombinant protein A to extract immunoglobulin G from rabbit serum. KW - Affinity chromatography KW - Affinity extraction KW - Glycidylethers KW - Macroporous polymers KW - Polyethers PY - 2012 U6 - https://doi.org/10.1002/macp.201200206 SN - 1022-1352 SN - 1521-3935 VL - 213 IS - 22 SP - 2398 EP - 2403 PB - Wiley-VCH Verl. CY - Weinheim AN - OPUS4-27390 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Pfeil, Norbert T1 - Die ProcessNet-Fachgemeinschaft Anlagen- und Prozesssicherheit: ein Beitrag zum Qualitätsmerkmal 'Made in Germany' N2 - 'Chemie und Petrochemie repräsentieren einen bedeutenden Teil der Wirtschaftskraft der Bundesrepublik Deutschland. Nicht nur für eine moderne Industriegesellschaft sind ihre Produkte unverzichtbar geworden. Unverzichtbar für die Weiterentwicklung dieser Wirtschaftszweige ist auch, dass die in Deutschland geplanten, gebauten und betriebenen Produktionsanlagen sicherheitstechnisch auf hohem Niveau sind. Die Fachgemeinschaft Anlagen- und Prozesssicherheit und ihre Vorgänger leisten hierzu seit über 30 Jahren wichtige Beiträge.' Mit diesen Worten lädt unter processnet.org/aps.html die Einstiegswebseite der ProcessNet-Fachgemeinschaft Anlagen- und Prozesssicherheit den Leser dazu ein, sich mit Aufgaben und Zielen, mit Arbeitsweise und Strukturen und mit den Produkten der Fachgemeinschaft näher zu befassen. Dies soll auch hier erreicht werden, nicht als Selbstdarstellung, sondern für den Erhalt und die Weiterentwicklung der notwendigen Kompetenz in der Anlagen- und Prozesssicherheit. Hierfür braucht die Fachgemeinschaft die Mitwirkung der verfügbaren Fachleute, aber auch junge Ingenieure und Wissenschaftler, auch Studenten, die Fachleute der Prozess- und Anlagensicherheit werden und sich weiterentwickeln wollen. KW - Anlagensicherheit KW - Chemie KW - Petrochemie KW - Prozesssicherheit PY - 2012 U6 - https://doi.org/10.1002/cite.201200157 SN - 0009-286X SN - 1522-2640 VL - 84 IS - 12 SP - 2141 EP - 2144 PB - Wiley-VCH Verl. CY - Weinheim AN - OPUS4-27331 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Buurman, Merwe A1 - Stindt, Arne A1 - Panne, Ulrich A1 - Riedel, Jens T1 - CO2-Laser Atmospheric Pressure Ionization of Acoustically Levitated Droplets T2 - SCIX CY - Kansas City, MO, USA DA - 2012-09-29 PY - 2012 N1 - Geburtsname von Buurman, Merwe: Albrecht, M. - Birth name of Buurman, Merwe: Albrecht, M. AN - OPUS4-27332 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Stindt, Arne A1 - Buurman, Merwe A1 - Panne, Ulrich A1 - Riedel, Jens T1 - CO2-Laser Atmospheric Pressure Ionization of Acoustically Levitated Droplets T2 - IMSC CY - Kyoto, Japan DA - 2012-09-15 PY - 2012 N1 - Geburtsname von Buurman, Merwe: Albrecht, M. - Birth name of Buurman, Merwe: Albrecht, M. AN - OPUS4-27333 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Buurman, Merwe A1 - Schenk, Jonas A1 - Stindt, Arne A1 - Riedel, Jens A1 - Panne, Ulrich T1 - Acoustically levitated droplets as containerless microreactors T2 - Microfluids 2012 CY - Heidelberg, Germany DA - 2012-07-25 PY - 2012 N1 - Geburtsname von Buurman, Merwe: Albrecht, M. - Birth name of Buurman, Merwe: Albrecht, M. AN - OPUS4-27334 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Buurman, Merwe A1 - Schenk, Jonas A1 - Stindt, Arne A1 - Riedel, Jens A1 - Panne, Ulrich T1 - Spectroscopic analysis in acoustically levitated droplets T2 - SciX 2012 (FACSS) CY - Kansas City, MO, USA DA - 2012-09-30 PY - 2012 N1 - Geburtsname von Buurman, Merwe: Albrecht, M. - Birth name of Buurman, Merwe: Albrecht, M. AN - OPUS4-27335 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Niederleithinger, Ernst ED - Matsumoto, T T1 - The parallel seismic method for foundation length measurement: useful also to check pile integrity? T2 - 9th International conference on testing and design methods for deep foundations CY - Kanazawa, Japan DA - 2012-09-18 KW - Parallel seismic KW - Bored piles KW - Integrity KW - Low strain testing PY - 2012 SN - 978-4-89010-597-7 SP - 217 EP - 222 AN - OPUS4-27336 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Schmidt, Wolfram A1 - Priebe, Nsesheye Susan A1 - Kühne, Hans-Carsten T1 - Optimising the rheology of concrete for sub-Saharan African boundary conditions / Optimierung der Rheologie von Beton für Rahmenbedingungen in Subsahara-Afrika N2 - Die Zement- und Betontechnologie in Afrika hat keine ähnlich lange Tradition wie viele Länder der nördlichen Hemisphäre. In vielen afrikanischen Ländern ist die Bauindustrie jedoch von Wachstum gekennzeichnet und hier werden Zement und Beton zukünftig zweifelsohne an Bedeutung gewinnen. KW - Africa KW - Cement KW - Concrete KW - Proficiency testing KW - Round robin PY - 2012 SN - 0373-4331 SN - 1865-6528 N1 - Sprachen: Deutsch/Englisch - Languages: German/English N1 - Geburtsname von Priebe, Nsesheye Susan: Msinjili, N. S. - Birth name of Priebe, Nsesheye Susan: Msinjili, N. S. VL - 78 IS - 09 SP - 60 EP - 67 PB - Bauverl. CY - Gütersloh AN - OPUS4-27338 LA - mul AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Sturm, Heinz A1 - Kovalev, Alexander T1 - AFM investigations of surface properties of 2,4,6 trinitrophenol (TNP) crystal at the nanoscale T2 - Frühjahrstagung der Deutschen Physikalischen Gesellschaft CY - Berlin, Germany DA - 2012-03-25 PY - 2012 AN - OPUS4-27339 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Solomun, Tihomir A1 - Sturm, Heinz A1 - Kovalev, Alexander A1 - Seitz, H. A1 - Wild, R. T1 - Sequence independent DNA-to-DNA binding at a gold surface mediated by a Dimeric Protein T2 - Frühjahrstagung der Deutschen Physikalischen Gesellschaft CY - Berlin, Germany DA - 2012-03-25 PY - 2012 AN - OPUS4-27340 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Schröter, Maria-Astrid A1 - Weimann, Christiane A1 - Sturm, Heinz A1 - Holzschneider, M. T1 - Analytical solutions for SE/LIA imaging experiments with vibrating microcantilevers T2 - International Conference on Micro- and Nano-Engineering (MNE) CY - Toulouse, France DA - 2012-09-16 PY - 2012 AN - OPUS4-27341 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Sturm, Heinz A1 - Schröter, Maria-Astrid A1 - Weimann, Christiane A1 - Holzschneider, M. T1 - Imaging and simulation of mode shapes and harmonics of AFM cantilevers using Scanning Electron Microscopy T2 - 4th Multifrequency AFM Conference CY - Madrid, Spain DA - 2012-10-15 PY - 2012 AN - OPUS4-27342 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Hübert, Thomas A1 - Lang, Cindy T1 - Artificial fruit: postharvest online monitoring of agricultural food by measuring humidity and temperature N2 - An online monitoring of environmental and inherent product parameters is required during transportation and storage of fruit and vegetables to avoid quality degradation and spoilage. The control of transpiration losses is suggested as an indicator for fruit freshness by humidity measurements. For that purpose, an electronic sensor is surrounded by a wet porous fiber material which is in contact with the outer atmosphere. Transpiration reduces the water content of the porous material and thus also the internal water activity. The sensor system, known as 'artificial fruit,' measures the relative humidity and temperature inside the wet material. Humidity and temperature data are collected and transmitted on demand by a miniaturized radio communication unit. The decrease in the measured relative humidity has been calibrated against the mass loss of tomatoes under different external influencing parameters such as temperature, humidity, and air flow. Current battery life allows the sensor system, embedded in a fruit crate, to transmit data on transpiration losses via radio transmission for up to two weeks. KW - Agricultural food KW - Relative humidity KW - Transpiration losses KW - Water activity PY - 2012 U6 - https://doi.org/10.1007/s10765-011-1101-0 SN - 0195-928X SN - 1572-9567 VL - 33 IS - 8-9 SP - 1606 EP - 1615 PB - Springer CY - Dordrecht AN - OPUS4-27343 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Lazik, D. A1 - Bartholmai, Matthias A1 - Ebert, S. T1 - Stand und Perspektive membranbasierter Liniensensorik zur flächenhaften CO2-Leckagedetektion in Böden T2 - Kolloquium Prozessanalytik CY - Berlin, Germany DA - 2012-12-03 PY - 2012 AN - OPUS4-27344 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Recknagel, Sebastian T1 - 100 Jahre Referenzmaterialien der BAM - vom Normalstahl zur Hochleistungskeramik T2 - Vollsitzung, VDEh Chemikerausschuss CY - Düsseldorf, Germany DA - 2012-12-06 PY - 2012 AN - OPUS4-27345 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Recknagel, Sebastian T1 - Reference Materials as a Tool for Worldwide Quality Assurance T2 - 2nd Int. Conference Mineral resources - Reference Material CY - Ulaanbaatar, Mongolia DA - 2012-11-27 PY - 2012 AN - OPUS4-27347 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Sugiyama, Kaori A1 - Rampler, Evelyn A1 - Traub, Heike A1 - Panne, Ulrich A1 - Jakubowski, Norbert A1 - Okino, A. A1 - Rottmann, L. A1 - Köllensperger, G. T1 - Application of a droplet generator for sample introduction in ICP-Sector Field Mass Spectrometer for analysis of single selenium enriched yeast sells T2 - 23. ICPMS Anwendertreffen und 10. Symposium Massenspektrometrische Verfahren der Elementspurenanalyse CY - Tulln an der Donau, Austria DA - 2012-09-10 PY - 2012 AN - OPUS4-27348 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Sugiyama, Kaori A1 - Rampler, Evelyn A1 - Traub, Heike A1 - Panne, Ulrich A1 - Jakubowski, Norbert A1 - Okino, A. A1 - Köllensperger, G. A1 - Rottmann, L. T1 - Single Cell Analysis by Use of ICP-MS T2 - 39th Federation of Analytical Chemistry and Spectroscopy Societies conference (FACSS) CY - Kansas City, MO, USA DA - 2012-09-30 PY - 2012 AN - OPUS4-27349 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Lindner, Uwe A1 - Lingott, Jana A1 - Jakubowski, Norbert A1 - Panne, Ulrich A1 - Richter, S. T1 - Speciation of Gadolinium in surface water samples and plants, analysed with HILIC-ICP-MS T2 - ICP-MS Anwendertreffen 2012 CY - Tulln an der Donau, Austria DA - 2012-09-10 PY - 2012 AN - OPUS4-27350 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Baer, Wolfram T1 - Adequate Measurement of Force, Displacement and Crack Initiation in Dynamic Fracture Mechanics Experiments T2 - European Conference on Fracture - ECF 19 CY - Kazan, Russia DA - 2012-08-26 PY - 2012 AN - OPUS4-27361 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Sobetzki, Joana A1 - Bäßler, Ralph T1 - Korrosionseigenschaften hochlegierter Werkstoffe in künstlichen Geothermie-Flüssigkeiten T2 - Geothermiekongress CY - Karlsruhe, Germany DA - 2012-11-13 PY - 2012 AN - OPUS4-27362 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Bäßler, Ralph T1 - Examining hull materials - choices to prevent corrosion T2 - Annual Event in the Lloyd's Maritime Academy's Technical Series: Coating and Corrosion CY - London, England DA - 2012-12-06 PY - 2012 AN - OPUS4-27363 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Wäsche, Rolf A1 - Woydt, Mathias T1 - Aiming at zero wear - Where are we right now? T2 - International Conference on Industrial Tribology (ICIT 2012) CY - Pune, India DA - 2012-12-07 PY - 2012 AN - OPUS4-27364 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Krüger, Simone A1 - Raspe, Tina T1 - Kohlenmonoxiduntersuchungen beim Grillen mit verschiedenen Grillkohlearten T2 - BfR Symposium "Bewertungen von Vergiftungen" CY - Berlin, Germany DA - 2012-11-29 PY - 2012 AN - OPUS4-27365 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Dülsen, Steffen A1 - Hofmann-Böllinghaus, Anja T1 - Fire safety of coaches and urban buses - experimental and numerical investigations possible enhancements T2 - Fire Resistance in Plastics CY - Cologne, Germany DA - 2012-09-27 PY - 2012 AN - OPUS4-27366 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Bäßler, Ralph A1 - Sobetzki, Joana A1 - Stürzbecher, Dieter T1 - Korrosionsuntersuchungen an hochlegierten Werkstoffen in einem künstlichen Geothermiefluid unter Betriebsbedingungen T2 - GDCh-Workshop: Energietransformationen - Die Rolle der Chemie CY - Karlsruhe, Germany DA - 2012-11-15 PY - 2012 AN - OPUS4-27367 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Mishra, Kirti Bhushan A1 - Wehrstedt, Klaus-Dieter T1 - Dispersion characteristics of flammable liquids: A CFD study T2 - 4th International Congress on Computational Mechanics and Simulation (ICCMS 2012) CY - Hyderabad, India DA - 2012-12-09 PY - 2012 AN - OPUS4-27368 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Schmidt, Martin T1 - Selbstentzündungsvorgänge in Schüttgütern - Grundlagen, Bestimmungsmethoden, Einflussgrößen, numerische Simulationen T2 - Kolloquium Anlagetechnik und Anlagesicherheit CY - Mannheim, Germany DA - 2012-11-28 PY - 2012 AN - OPUS4-27369 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Ried, Peter A1 - Gaber, Martin A1 - Müller, Ralf A1 - Paul, Martin A1 - Dittrich, Matthias A1 - Meyer-Scherf, Ronald A1 - Schmidtchen, Ulrich A1 - Pflaum, S. A1 - Deubener, J. A1 - Gröschl, Christian T1 - Glass Hydrogen Barriers - Hydrogen Diffusion & Permeation - A Methodical Approach N2 - Due to its high energy density hydrogen is a capable energy carrier to store the electrical energy surplus resulting from energy production by wind and solar energy in chemical energy. In this context, corrosion stable, pressure resistant glasses offer a promising opportunity for long term hydrogen storage e.g. at high pressure in glass capillaries. In this context, investigations of hydrogen permeation and diffusion can provide important fundamental knowledge to evaluate the applicability. Different sample geometries as planary, bulb shaped, capillary shaped, as well as powders are compared in order to evaluate the experimental operability and the sensitivity of each approach. Limiting factors are e.g. gas thight sealing of planar samples, wall thickness of small glass bulbs, availability of glass capillaries and a defined grain of powders. High pressure experiments and the application of fast furnaces to ensure quick heating to the extraction temperature using vacuum hot extraction coupled with MS. The correctness is ensured comparing the obtained results of the mentions geometries emong each other as well as with literature data. T2 - 2nd MSE Conference CY - Darmstadt, Germany DA - 2012-09-25 PY - 2012 N1 - Geburtsname von Meyer-Scherf, Ronald: Meyer, R. - Birth name of Meyer-Scherf, Ronald: Meyer, R. AN - OPUS4-27370 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Schartel, Bernhard T1 - Nanotechnologie hält Einzug im Flammschutz T2 - Fachtagung Nano-Additive CY - Berlin, Germany DA - 2012-11-19 PY - 2012 AN - OPUS4-29788 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Nehrig, Marko A1 - Bletzer, Claus Wilhelm A1 - Wille, Frank T1 - Safety assessment aspects of type B(U) packages containing wet intermediate level waste N2 - In Germany, the mechanical and thermal safety assessment of approved packages for the transport of RAM is carried out by BAM as the competent authority according to the International Atomic Energy Agency regulations. BAM was involved in several approval procedures with ductile cast iron containers containing wet intermediate level waste. These contents, which are not dried, only drained, consist of saturated ion exchange resin and a small amount of free water. Compared to the safety assessment of packages with dry content, attention must be paid to some more specific points. The physical and chemical compatibility of the content itself and of the content with materials of the package must be shown. From the mechanical resistance point of view, the package has to withstand the forces resulting from the freezing liquid. The most interesting point, however, is the pressure build-up inside the package due to vapourisation. This could be caused by radiolysis of the liquid and must be taken into account for the storage period. The paper deals primarily with the pressure build-up inside the package caused by the regulatory thermal test (30 min at 800°C) as part of the cumulative test scenario under accident conditions of transport. To determine the pressure, the temperature distribution in the content must be calculated for the whole period from the beginning of the thermal test until cooling down. In this case, calculating the temperature distribution requires, besides the consideration of conduction and heat radiation, consideration of evaporation and condensation including the associated processes of transport. KW - Type B KW - Wet content KW - Pressure build-up KW - Vapourisation KW - Thermal test KW - Radioactive waste KW - Thermal analysis PY - 2012 UR - http://www.maneyonline.com/doi/full/10.1179/1746510913Y.0000000024 U6 - https://doi.org/10.1179/1746510913Y.0000000024 SN - 1746-5095 SN - 1746-5109 SN - 0957-476X VL - 23 IS - 3-4 SP - 187 EP - 190 PB - Ramtrans Publ. CY - Ashford AN - OPUS4-29935 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Linnemann, Konrad A1 - Ballheimer, Viktor A1 - Sterthaus, Jens A1 - Wille, Frank T1 - Methodological aspects for finite element modelling of lid systems for type B(U) transport packages N2 - The regulatory compliance of the containment system is of essential importance for the assessment process of Type B(U) transport packages. The requirements of the International Atomic Energy Agency safety standards for transport conditions imply high loading on the containment system. The integrity of the containment system has to be ensured in mechanical and thermal tests. The containment system of German spent nuclear fuel and high level waste transport packages usually includes bolted lids with metal gaskets. The finite element (FE) method is recommended for the analysis of lid systems according to the guideline BAM-GGR 012 for the assessment of bolted lid and trunnion systems. The FE analyses provide more accurate and detailed information about loading and deformation of such kind of structures. The results allow the strength assessment of the lid and bolts as well as the evaluation of relative displacements between the lid and the cask body in the area of the gasket groove. This paper discusses aspects concerning FE simulation of lid systems for type B(U) packages for the transport of spent nuclear fuel and high level waste. The work is based on the experiences of the BAM Federal Institute for Materials Research and Testing as the German competent authority for the mechanical design assessment of such kind of packages. The issues considered include modelling strategies, analysis techniques and interpretation of results. A particular focus of this paper is on the evaluation of the results with regard to FE accuracy, influence of the FE contact formulation and FE modelling techniques to take the metallic gasket into account. KW - Transport cask KW - Closure system KW - Boiled joints KW - Numerical analysis PY - 2012 U6 - https://doi.org/10.1179/1746510913Y.0000000021 SN - 1746-5095 SN - 1746-5109 SN - 0957-476X VL - 23 IS - 3-4 SP - 211 EP - 216 PB - Ramtrans Publ. CY - Ashford AN - OPUS4-29996 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - RPRT A1 - Herbst, Tristan A1 - Rübner, Katrin T1 - Nanoskaliger Kieselsäureschlamm - Technologieentwicklungen zur Verwertung in mineralischen Baustoffen mit dem Ziel der Verbesserung der Werkstoffeigenschaften, Teilprojekt: Stoffcharakterisierung, hydraulische Bindemittel und NJachhaltigkeits- und Wirtschaftlichkeitsbetrachtungen KW - Kieselsäuren KW - Reststoff KW - Nanopartikel KW - Recycling KW - Mineralischer Baustoff PY - 2012 SP - 1 EP - 36 CY - Berlin AN - OPUS4-30065 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - RPRT A1 - Rübner, Katrin T1 - Aufbaukörnungen - Steigerung der Ressourceneffizienz im Bauwesen durch die Entwicklung innovativer Technologien für die Herstellung hochwertiger Aufbaukörnungen aus sekundären Rohstoffen auf der Basis von heterogenen Bau- und Abbruchabfällen, TP: Materialcharakterisierung KW - Bauabfall KW - Mineralischer Baustoff KW - Recycling KW - Granulieren PY - 2012 SP - 1 EP - 36 CY - Berlin AN - OPUS4-30066 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Nai, Corrado A1 - Broughton, William J. A1 - Gorbushina, Anna T1 - Physiological Characterisation of a Phylogenetic Ancestor of Pathogenic Ascomycetes: Adaptation of the Biolog TM system for Slow-Growing Melanised Fungi T2 - ISHAM 2012 CY - Berlin, Germany DA - 2012-06-11 PY - 2012 AN - OPUS4-28925 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Nai, Corrado A1 - Wong, Helen A1 - Broughton, William J. A1 - Gorbushina, Anna T1 - Physiological Characterization and Synthetic Medium Development for a Model Rock-Inhabiting Black Fungus T2 - VAAM 2012 CY - Tübingen, Germany DA - 2012-03-18 PY - 2012 AN - OPUS4-28926 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Lausch, Thomas A1 - Kannengießer, Thomas T1 - 13CrMoV9-10 (1.7703) - Untersuchungen zur Relaxationsversprödung T2 - MDDK - Master-, Diplomanden-, Doktorandenkolloqium CY - Magdeburg, Germany DA - 2012-12-13 PY - 2012 AN - OPUS4-28917 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Schenk, Gottfried A1 - Brackrock, Daniel A1 - Boehm, Rainer T1 - Schallfeldsteuerung mit Matrixarrays - Vergleichsmessungen an Rohrtestkörpern T2 - DACH-Jahrestagung 2012 CY - Graz, Austria DA - 2012-09-17 KW - Wanddickenmessung KW - Rissprüfung auf Innen- und Außenfehler KW - Ersatz von konventioneller Prüftechnik durch Matrixarrays KW - Schallfeldoptimierung durch Modellrechnung KW - Matrixarray mit 256 Elementen KW - Erprobung an Rohrtestkörpern PY - 2012 SN - 978-3-940283-44-3 IS - DGZfP-BB 136 SP - Mi.2.A.2, 1 EP - 8 AN - OPUS4-29159 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Daschewski, Maxim A1 - Harrer, Andrea A1 - Prager, Jens A1 - Kreutzbruck, Marc A1 - Beck, Uwe A1 - Lange, Thorid A1 - Weise, Matthias T1 - Metallic nanofilm as resonance-free airborne ultrasound emitter N2 - A novel approach for the generation of broadband airborne ultrasound by using the thermo-acoustic effect is presented in this contribution. We investigate the applicability of resonance-free thermo-acoustic emitters for generation of very short high pressure airborne ultrasound pulses. A thermoacoustic emitter consisting of a 30 nm thin metallic film on a usual soda-lime glass substrate generates sound pressure values of more than 140 dB at 60 mm distance. The results are compared with conventional piezoelectric airborne ultrasound transducers. Our investigations show the applicability of the thermo-acoustic devices for broadband and high pressure ultrasound emitters using pulse excitation. T2 - 2012 IEEE International Ultrasonics Symposium (IUS) CY - Dresden, Germany DA - 2012-10-07 KW - Thermo-acoustic KW - Broadband airborne ultrasound KW - Resonance-free ultrasound transducer KW - High pressure airborne ultrasound KW - Sound particle velocity measurement PY - 2012 SN - 978-1-4673-4562-0 U6 - https://doi.org/10.1109/ULTSYM.2012.0241 SN - 1948-5719 SP - 965 EP - 967 AN - OPUS4-29152 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Deresch, Andreas A1 - Bellon, Carsten A1 - Gollwitzer, Christian A1 - Jaenisch, Gerd-Rüdiger T1 - Radiographic Simulator aRTist: Version 2 T2 - 18th WCNDT - World conference on nondestructive testing (2012) CY - Durban, South Africa DA - 2012-04-16 PY - 2012 AN - OPUS4-29191 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Deresch, Andreas A1 - Jaenisch, Gerd-Rüdiger A1 - Bellon, Carsten A1 - Alexander, F. A. T1 - Simulating X-Ray Spectra: From Tube Paramenters to Detector Output T2 - 18th WCNDT - World conference on nondestructive testing (2012) CY - Durban, South Africa DA - 2012-04-16 PY - 2012 AN - OPUS4-29192 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Helmerich, Rosemarie ED - Biondini, F. ED - Frangopol, D.M. T1 - Full scale fatigue testing of original truss members and connections T2 - IABMAS 2012 - 6th International conference on bridge maintenance, safety and management CY - Stresa, Lake Maggiore, Italy DA - 2012-07-08 KW - Existing bridges KW - Laboratory testing KW - Fatigue KW - Remaining service life KW - Weak details KW - Materials testing PY - 2012 SN - 978-0-415-62124-3 SN - 978-0-203-10338-8 SP - 8 pages PB - CRC Press CY - London, UK AN - OPUS4-29455 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Hong, Shuxian A1 - Lai, W. A1 - Helmerich, Rosemarie A1 - Milmann, Boris T1 - NDT-Based Monitoring of Accelerated Reinforced Corrosion in Concrete T2 - IABMAS 2012, Conference of Bridge Maintenance, Safety and Management CY - Stresa, Italy DA - 2012-07-07 PY - 2012 AN - OPUS4-29473 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - RPRT A1 - Auersch, Lutz T1 - Mitigation measures for slab tracks - wide sleepers on soft pads and different slabs - Results from the finite element boundary element method N2 - The ground vibrations, which are generated by trains on different slab tracks, have been calculated by finite-element boundary-element models. The slab track is modelled in detail by the finite element method. The infinite soil is modelled by the boundary element method as a homogeneous half-space. The track-soil system is coupled with a simple rigid mass model of the vehicle so that the vehicle-track interaction is completely included. Transfer functions are calculated in frequency domain without and with vehicle-track interaction, the compliance of the track and the mobilities of the soil at different distances from the track. Finally, the ratios between the ground vibration amplitudes with and without mitigation measure are calculated to quantify the effectiveness of the mitigation measure. Tracks with under sleeper pads have been investigated in a parameter study. The main parameter that influences the reduction of ground vibration is the stiffness of the under sleeper pad. The softest sleeper pad yields the best reduction of the ground vibration. The influence of other parameters has been examined. The stiffness of the rail pads, the stiffness of the slab material, the stiffness of the sleeper material, and the distance of the sleepers. All these parameters show no or only a minor influence on the mitigation effect. As the standard isolated track, a track with an under sleeper pad of a stiffness of kS = 5 107 N/m has been chosen, which can also be expressed as a stiffness per area of kS ’’ = 3.7 107 N/m3 = 0.037 N/mm3. The resonance frequency for this pad stiffness is observed between 32 and 40 Hz. The reduction of the ground vibration is about vi,I /vi,U = 0.1 at 100 Hz. KW - Wide sleeper KW - Under sleeper pad KW - Finite-element boudnary-element method KW - Slab track KW - Mitigation KW - Ground vibration PY - 2012 SP - 1 EP - 50 PB - Bundesanstalt für Materialforschung und -prüfung (BAM) CY - Berlin AN - OPUS4-56608 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - RPRT A1 - Berger, Wolfgang A1 - Kalbe, Ute A1 - Krüger, Oliver A1 - Hennecke, D. A1 - Hoffe, S. T1 - Validierungsringversuche für E DIN 19527 Elution von Feststoffen - Schüttelverfahren zur Untersuchung des Elutionsverhaltens von organischen Stoffen mit einem Wasser/ Feststoff-Verhältnis von 2 l/kg für Boden- und andere geeignete Materialien N2 - Für die vom Bundesumweltministerium vorgesehene Mantelverordnung sind validierte Unter-suchungsmethoden erforderlich. Dazu gehört auch die Herstellung von wässrigen Eluaten, z.B. zur Beurteilung der Mobilität von Schadstoffen und der Ableitung von Grenzwerten. Ziel des Vorhabens war es, auf der Grundlage geeigneter Testmaterialien (mit prioritären organischen Schadstoffen kontaminierte Böden und Bodenmaterialien) Ringversuche zur Validierung des Schüttelverfahrens nach E DIN 19527 und des Säulenverfahrens für die Übereinstimmungs-untersuchung nach DIN 19528 durchzuführen. Auf der Grundlage der Untersuchungsergebnisse sollten beide Normen bezüglich der Vorgehensweise präzisiert werden und es sollten die während des Ringversuchs ermittelten Verfahrenskenndatenn zur Validierung der Normen herangezogen werden. Darüber hinaus sollten Säulen- und Schüttelverfahren als Übereinstimmungstest vergleichend bewertet werden. Es wurden vier geeignete Ringversuchsmaterialien hergestellt und an insgesamt 18 Ringversuchsteilnehmer ausgegeben. Die Auswertung der Ringversuche erfolgte auf der Grundlage klassischer Statistik nach DIN ISO 5725 mit Hilfe der AuswertesoftwareProLab 2011 (quo data). Auf der Grundlage der Validierungsringversuche wurden die Verfahrenskenndaten für die Norm DIN 19527 ermittelt. Die statistische Auswertung der eingereichten Datensätze war aufgrund der großen Streubreite der Daten schwierig. Die vorgeschriebenen statistischen Methoden zur Datenauswertung adressieren die Behandlung nicht gleichverteilter Datensätze nur ungenügend. Das muss bei der Bewertung der Ergebnisse und deren Zuverlässigkeit berücksichtigt werden. Generell kann festgestellt werden, dass keine signifikanten Unterschiede zwischen den Ergebnissen der Schüttel- und Säulenelution beobachtet werden. Dabei werden beim Schüttelverfahren tendenziell etwas geringere Gesamtmittelwerte erzielt als beim Säulenverfahren, die berechneten Vergleichsvariationskoeffizienten sind für das Schüttelverfahren meist etwas niedriger. Dennoch erweisen sich beide Elutionsverfahren bei den eingesetzten Ringversuchsmaterialien als gut vergleichbar. N2 - Validated investigation methods are required for the drafted decree, called “Mantelverordnung”, comprising the amendment of the Federal Ordinance on Soil Protection and Contaminated Sites, the Federal Ordinance on Mineral Waste Utilization and Groundwater Ordinance published by the German Federal Ministry for the Environment, Nature Conservation and Nuclear Safety in January 2011. These methods include such for the creation of aqueous eluates, which contribute to the evaluation of the mobility of pollutants and the derivation of threshold values. Objectives of the R&D project were interlaboratory tests for the validation of the batch test (E DIN 19527) and the column test using the compliance test option according to DIN 19528 based on contaminated soil test materials with organic pollutants of high priority. Dependent on the test results both standards should be specified concerning the experimental details. Furthermore, the standards shall be validated using the determined performance characteristics. The comparability of column and batch test procedures as compliance tests shall be evaluated in addition. Four appropriate test materials were prepared from two different types of soils, each with the pollutant combinations PAH/PCB and Phenols/TPH/PAH, respectively. These materials were delivered along with test solutions to 18 participants of the interlaboratory comparision. The evaluation of the interlaboratory comparison was carried out on the basis of classical statistics according to DIN ISO 5725. The software ProLab 2011 (quodata) was used for the evaluation. The performance characteristic parameters for the standard DIN 19527 were determined on the basis of the interlaboratory tests. The main challenge was the statistical evaluation due to the fact that the common statistical procedures do not address the evaluation of nonuniformly distributed datasets. This must be considered for the assessment of the results and reliability of the conclusions. However, on a more general level it can be concluded that no significant differences between the batch and column percolation test procedure were observed. The total mean values determined by batch tests tend to be slightly below the values from column tests. The between labvariation coefficients representing the reproducibility of the methods follow the same trend. All in all both methods can be assessed to be equivalent using the materials tested. KW - Kontaminierter Boden KW - PAK KW - PCB KW - MKW KW - Phenole KW - Elutionsverfahren KW - Schütteltest KW - Säulenversuch KW - Validierungsringversuche PY - 2012 SP - 1 EP - 189 AN - OPUS4-53610 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Woydt, Mathias A1 - Scholz, C. A1 - Burbank, J. A1 - Spaltmann, Dirk T1 - Slip-rolling resistant steel alloys up to P0max of 3,920 MPa N2 - Downsizing (power-to-weight ratio) and higher speeds lead to a rise in Hertzian contact pressures in combination with an increase in surface or oil temperatures. Under such conditions, commonly used bearing steels, such as 100Cr6, reach their limits, creating a demand for alternative slip-rolling resistant steel alloys. The present work therefore compares the slip-rolling performance of various steel types with Maraging- and PM-type steel alloys such as e.g. CSS-42L™, ASP2012, BIMAX42+, in the Hertzian contact pressure range up to P0max of 4 GPa. Through-hardened 100Cr6H (AISI 52100), case-hardened 20MnCr5 (AISI 5120H) and nitrogen alloyed Croni-dur30 (AMS 5898) still compete in terms of slip-rolling and wear resistance and load carrying capacity, whereas Maraging- and PM-type steel alloys offer superior strength and toughness properties. KW - Steel KW - Alloy KW - Slip-rolling KW - Friction KW - Wear rate KW - Contact pressure KW - 100Cr6 KW - BIMAX42 KW - CSS-42L KW - ASP20212 PY - 2012 U6 - https://doi.org/10.1016/j.wear.2021.203707 VL - 474-475 SP - 203707 PB - Elsevier B.V. AN - OPUS4-52549 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Brown, A. S. A1 - van der Veen, A. M. H. A1 - Arrhenius, K. A1 - Tuma, Dirk T1 - Traceable standards and methods for the analysis of non-conventional energy gases N2 - Declining European natural gas resources and increasing legislation mean that diversification towards ‘non-conventional gases’ is essential. Accurate and traceable measurements of the composition of non- conventional gases are required to ensure gases can be transported in existing pipeline networks, and used with existing appliances. The EMRP ‘Characterisation of energy gases’ project is successfully developing a metrology infrastructure to underpin these measurements. New standards and methods have been developed for biogas composition, biogas impurities, coal mine gases, refinery gases and environmentally-friendly odorants. The project is set to conclude in 2013 with the challenging analysis of a series of real non-conventional gas samples. T2 - 28th Meeting of the CCQM Gas Analysis Working Group (GAWG) CY - Saint Petersburg, Russian Federation DA - 24.10.2012 KW - metrology KW - traceable standards KW - energy gases PY - 2012 AN - OPUS4-35946 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Maurer, G. A1 - Tuma, Dirk A1 - Chobanov, K. A1 - Kumełan, J. A1 - Pérez-Salado Kamps, Á. T1 - Gas solubility in ionic liquids: Solubility of a binary gas mixture in a pure ionic liquid as well as of a single gas in a binary liquid mixture N2 - Ionic Liquids (ILs) are employed in various fields, for example, reaction engineering (reactions with gases, such as hydroformylation (CO, H2), hydrogenation (H2), oxidation (O2)) or separation technology (separations of gases, reactants, and high-volatility reaction products). For the basic engineering of such processes, knowledge of phase equilibria, particularly of mixtures, over a broad (p,T) range is mandatory. This contribution reports on recent experimental results from our laboratory: – for the simultaneous solubility of a binary gas mixture in a pure ionic liquid – for the solubility of a single gas in a binary liquid solvent mixture. T2 - EUCHEM 2012 Conference on Molten Salts and Ionic Liquids CY - Celtic Manor, Wales, United Kingdom DA - 05.08.2012 KW - ionic liquids KW - gas solubility KW - Henry's constant PY - 2012 AN - OPUS4-35947 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Miccoli, Lorenzo A1 - Müller, Urs A1 - Perrone, C. A1 - Ziegert, C. T1 - Earth block masonry, rammed earth and cob: earthen components from different construction techniques and their structural performance N2 - Both in developed and developing countries, modern building materials tend to be preferred to traditional earthen construction. Reasons include low durability, inadequate performance under seismic loading and, in developing countries, a wish to replace what is perceived as 'poor' with what is perceived as 'rich'. In an age when building permissions and construction standards are a must, particularly in seismic areas, even when an owner is willing to build in earth, construction approval needs to be granted: we rely on values and standards to build, but the necessary data on material properties and structural performance of earthen building techniques is scarce if compared to the abundance of data for other materials (clay brick masonry, concrete, steel) available to the engineer. At the same time, traditional builders' skills, knowledge and confidence in earthen building techniques are decreasing if not disappearing. A wallette testing campaign was thus carried out with the aim of filling this knowledge gap. Prior to the wallette campaign, material properties, including composition and physical-mechanical parameters, were determined. Compression and diagonal compression (shear) tests were then performed, and a basic analysis of the mechanical behaviour of structural elements built in cob is provided in relation to earth block (adobe) masonry and rammed earth elements. Cob, shown to have low compressive resistance, has a relatively ductile post-peak behaviour if compared to earth block masonry specimens which, as expected, show a marked brittle behaviour. In terms of shear strength, cob performs relatively well in view of its low compressive strength. The study is part of our work within the framework of the ongoing project NIKER funded by the European Commission dealing with improving the structural performance of Cultural Heritage assets in order to limit earthquake hazards. T2 - Terra 2012 - 11th International conference on the study and conservation of earthen architecture heritage CY - Lima, Peru DA - 2012-04-22 KW - Earth block KW - Rammed earth KW - Cob KW - Mechanical properties KW - Earthen architecture KW - Earth block masonry PY - 2012 SN - 978-9972-2885-5-5 IS - Theme 6 - t6_066 SP - 1 EP - 10 AN - OPUS4-30380 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Müller, Urs A1 - Miccoli, Lorenzo A1 - Malaga, K. T1 - A new grouting material for the repair of cracks in earthen structures N2 - Traditional earthen structures of cultural value are often damaged by static or dynamic loads. This is usually manifested by the appearance of cracks. All too often these cracks are insufficiently or inappropriately repaired if at all because of lack of knowledge and/or technology. In particular, the behavior of crack repair by grouting poses a challenge in earthen materials and demands specific requirements for the grouting mortar, such as low water content, good water retention, low shrinkage, etc. If dynamic loads, e.g. induced by earthquakes, are expected, the grouting material requires additional specifications such as a compatible strength and modulus of elasticity as well as good adhesion to the earthen materials. The study presents results from the development of a grouting material based on hydraulic lime mortar suitable for the repair of cracks in a variety of earthen building techniques. The goal was to develop a material also compatible with earthen structures exposed to dynamic load. The grouting mortar was designed to be adaptable in strength properties and at the same time to have sufficient robustness for the use on the construction site. First results show a satisfactory performance of the grout concerning fresh and hardened mortar properties as well as injectability. The study is part of our work in the framework of the ongoing project NIKER, funded by the European Commission dealing with improving imovable Cultural Heritage assets against the risk of earthquakes. T2 - Terra 2012 - 11th International conference on the study and conservation of earthen architecture heritage CY - Lima, Peru DA - 2012-04-22 KW - Cracks KW - Grouting KW - Lime mortar KW - Earthen Structures KW - Cracks repair PY - 2012 SN - 978-9972-2885-5-5 IS - Theme 6 - t6_059 SP - 1 EP - 10 AN - OPUS4-30381 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Seiffert, Franz A1 - Gorbushina, Anna A1 - Friedmann, A. A1 - Heilmann, A. T1 - Studying colonization on stone surfaces by a model biofilm in a flow-through chamber approach T2 - Jahrestagung der Vereinigung für Allgemeine und Angewandte Mikrobiologie (VAAM) CY - Tübingen, Germany DA - 2012-03-18 PY - 2012 AN - OPUS4-30799 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Günster, Jens A1 - Heinrich, J. T1 - 2nd International symposium on materials processing science with lasers as energy sources KW - Materials science PY - 2012 SN - 0173-9913 SN - 0196-6219 VL - 89 IS - 6-7 SP - E 36 PB - Göller CY - Baden-Baden AN - OPUS4-31281 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Quercia, G. A1 - Spiesz, P. A1 - Hüsken, Götz A1 - Brouwers, J. ED - Jacobsen, S. ED - Justnes, H. ED - Cepuritis, R. ED - Hornbostel, K. ED - Peng, Y. T1 - Effects of amorphous nano-silica additions on mechanical and durability performance of SCC mixtures N2 - In the recent years the application of nanotechnology in building materials has increased exponentially. One of the most referred and used nano-materials is amorphous silica with particles size in the nano-range, even though its application and effect in concrete has not been fully understood yet. It has been reported that nano-silica (nS) addition increases the compressive strength and reduces the overall permeability of hardened concrete due to the pozzolanic properties which are resulting in finer hydrated phases (C-S-H gel) and densified microstructure (nano-filler and anti leaching effects). These effects enhance the durability of concrete structures such as bridges, quays or off-shore oil facilities in marine environments. In this study two different types of nano-silica were applied in self-compacting concrete (SCC), both having similar particle size distributions (PSD) but produced in two different processes (fumed powder silica and precipitated silica in colloidal suspension). The influence of nanosilica on SCC was investigated with respect to the properties of concrete in the fresh state (workability) and hardened state (mechanical properties and durability). Additionally, the densification of microstructure of the hardened concrete was verified by SEM and EDS analyses. The obtained results demonstrate that an efficient use of nano-silica in SCC can improve its mechanical properties and durability. Considering the reactivity of the two nano-silica studied, colloidal type shown more reactivity at early age, which influenced all the final SCC properties. T2 - ICDC 2012 - International congress on durability of concrete CY - Trondheim, Norway DA - 2012-06-18 KW - Nano-silica KW - Concrete KW - Self Compacting KW - Durability KW - Chloride and Freeze-thaw PY - 2012 SN - 978-82-8208-031-6 SP - A2-4, 1-15 AN - OPUS4-30540 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Quercia, G. A1 - Brouwers, H.J.H. A1 - Spiesz, P. A1 - Hüsken, Götz T1 - Cloride intrusion and freeze-thaw resistance of self-compacting concrete with two different nano-SiO2 T2 - 18. ibausil - Internationale Baustofftagung CY - Weimar, Germany DA - 2012-09-12 PY - 2012 AN - OPUS4-30369 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Klieboldt, Ulrich T1 - 6 (d) Test with Ammunition for small Arms T2 - IGUS-EPP Working Group CY - Berlin, Germany DA - 2012-05-10 PY - 2012 AN - OPUS4-30999 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Klieboldt, Ulrich T1 - BAM Introduction and Capabilities T2 - 2nd Explosives Testing Users' Group meeting CY - Park City, UT, USA DA - 2012-10-09 PY - 2012 AN - OPUS4-31000 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Klieboldt, Ulrich T1 - BAM Test Lab/Site Quality Management System T2 - 2nd Explosives Testing Users' Group meeting CY - Park City, UT, USA DA - 2012-10-09 PY - 2012 AN - OPUS4-31001 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Müller, Ralf T1 - Glas und Keramik für Schlüsseltechnologien - Prozessbegleitende Prüfung und Simulation T2 - Sommerkolloquium des GHI der RWTH CY - Aachen, Germany DA - 2012-06-21 PY - 2012 AN - OPUS4-30854 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Hemmann, Felix A1 - Scholz, G. A1 - Scheurell, K. A1 - Kemnitz, E. A1 - Jäger, Christian T1 - Time-Optimized Quantification of Acid Lewis and Brønsted Sites in Catalysts T2 - Workshop: "Festkörper-NMR-Methoden und Anwendungen in der Materialforschung" CY - Oberjoch, Germany DA - 2012-07-29 PY - 2012 AN - OPUS4-31403 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Nöller, Renate A1 - Feldmann, Ines T1 - Röntgenanalytische Bestimmung zur Herkunft von Pigmenten T2 - Jahrestagung Archäometrie und Denkmalpflege CY - Tübingen, Deutschland DA - 2012-03-28 PY - 2012 AN - OPUS4-31711 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Deresch, Andreas A1 - Zhukovskiy, M. A1 - Podoliako, Serguei A1 - Jaenisch, Gerd-Rüdiger A1 - Spartiotis, O. T1 - Mathematical Modeling of Radiography Experiments T2 - 18th WCNDT - World conference on nondestructive testing (2012) CY - Durban, South Africa DA - 2012-04-16 PY - 2012 AN - OPUS4-19054 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Sarmiento Klapper, Helmuth A1 - Göllner, J. A1 - Heyn, Andreas A1 - Burkert, Andreas T1 - Relevance of the cathodic process on the passivation of stainless steels - an approximation to the origin of the rouging phenomenon N2 - Unwanted corrosive phenomena on stainless steel surfaces like rouging had been observed for years occurring at certain service conditions. Rouging consists in the formation of a colored surface film containing mainly iron on metallic surfaces in contact with high-purity waters. In spite of numerous hypotheses and experimental examinations a clear explanation about the origin of rouging on stainless steels is currently still lacking. Because rouging occurs even at well passivated stainless steel surfaces the origin of this corrosive phenomenon should be related to the weakness of the stability of the passive film. In the present paper electrochemical noise measurements regarding the stability of the passive layer of alloy 904L (1.4539, X1NiCrMoCu25-20-5) in high-purity water at 70 °C depending on the cathodic process are presented. In addition, the importance of the cathodic reaction on the passivation and stability of the passive layer is discussed. KW - Stanless steel KW - Passivation KW - Cathodic process KW - Electrochemical noise PY - 2012 U6 - https://doi.org/10.1002/maco.201005668 SN - 0947-5117 SN - 1521-4176 VL - 63 IS - 1 SP - 54 EP - 58 PB - Wiley-VCH Verl. CY - Weinheim AN - OPUS4-21596 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Krüger, Oliver A1 - Kalbe, Ute A1 - Berger, Wolfgang A1 - Simon, Franz-Georg A1 - Lopez Meza, Sarynna T1 - Leaching experiments on the release of heavy metals and PAH from soil and waste materials N2 - Leaching tests are fundamental tools for the assessment of long-term impact of contaminated waste materials on the soil-groundwater pathway. Experiments were carried out in the framework of standardization and validation of column percolation and batch test procedures, in particular concerning the stipulation of the experimental setup. The colloid release of column and batch experiments was compared and the influence of different column filling heights (12.5–50 cm) on the release of polycyclic aromatic hydrocarbons (PAH) from soil was studied, as well as the effect of varying contact times (2.5–16 h) on the release of chromium from construction and demolition (C&D) waste and municipal solid waste incineration (MSWI) bottom ash. The results indicate that filtration of the eluate, which is required for batch tests, does not always allow the simulation of the actual colloid amount in soil pore water. Medium column heights four times the inner diameter of the column seemed to provide reasonable equilibrium adjustment conditions and avoid major biodegradation. The release of chromium was only marginally affected by the contact time, varied between 0.115 and 0.150 mg/kg for demolition waste eluate at a liquid-to-solid ratio of approximately 5 L/kg. KW - Column tests KW - Batch tests KW - Waste materials KW - Leaching KW - Standardization PY - 2012 U6 - https://doi.org/10.1016/j.jhazmat.2011.02.016 SN - 0304-3894 VL - 207-208 SP - 51 EP - 55 PB - Elsevier CY - Amsterdam AN - OPUS4-24030 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Deresch, Andreas A1 - Zhukovskiy, M. A1 - Jaenisch, Gerd-Rüdiger A1 - Uskov, R. T1 - Monte Carlo Modeling of Electron Transport Using CUDA Technology T2 - 18th WCNDT - World conference on nondestructive testing (2012) CY - Durban, South Africa DA - 2012-04-16 PY - 2012 AN - OPUS4-19525 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Nolze, Gert T1 - Fast Orientation Projection using OpenGL N2 - Electron backscatter diffraction produces an enormous number of single orientation data which need to be processed but also visualized. The presentation shows that standard hardware can be used to increase the presentation speed considerably. T2 - EBSD 2012 CY - Pittsburgh, Pennsylvania, USA DA - 19.06.2012 KW - electron backscatter diffraction KW - OpenGL KW - crystal orientation KW - pole figure PY - 2012 AN - OPUS4-37900 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Payton, E. A1 - Nolze, Gert T1 - The BSE signal as an additional tool for phase assignment in EBSD N2 - The presentation demonstrates how the background signal of EBSD patterns can be used for a rough assignment of phases which cannot distinguished by the diffraction signal. T2 - EBSD 2012 CY - Pittsburgh, Pennsylvania, USA DA - 19.06.2012 KW - Electron backscatter diffraction KW - Backscattered electrons KW - Kikuchi pattern KW - Phase distribution KW - Phase separation KW - Phase recognition PY - 2012 AN - OPUS4-37901 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Nolze, Gert A1 - Saliwan Neumann, Romeo A1 - Buchheim, Michaela T1 - Microstructure investigations of iron meteorites by EBSD and EDS analyses N2 - Meteorites are a unique and inspiring material for microstructural studies because if their very specific genesis. Iron meteorites have been formed under unimaginable cooling rates of a few ten Kelvins per million years so that the observable transformation of the formerly huge Fe-Ni single crystals of taenite occurred under nearly-equilibrium conditions. Octahedrites (meteorites having a Ni content between 6...15%) are characterized by ribbons of the low-temperature Fe-Ni phase kamacite separated by rims of residual taenite. This very specific feature is known as Widmanstaetten structure and has been investigated by synchrotron radiation in order to cover a higher volume fraction for a statistically relevant description of orientation relationships. However, plessite – a microstructure mainly consisting of the same phases – reflects the orientation relationship between kamacite and taenite as well. For their characterization, a scanning electron microscope is very suitable in order to investigate crystal orientations or identify phases. Despite the apparently ideal formation circumstances of iron meteorites, Ni concentration profiles prove non-equilibrium conditions. Combined EDS (energy dispersive spectroscopy) and EBSD (electron backscatter diffraction) measurements at a selected plessitic region of the Cape York iron shows that a correlation exists between Ni-concentration and the locally detected orientation relationship. T2 - 15th European Microscopy Congress CY - Manchester, UK DA - 16.09.2012 KW - Phase identification KW - Corrosion KW - Chloride KW - Dermbach PY - 2012 SP - 90 AN - OPUS4-37775 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Sobetzki, Joana A1 - Bäßler, Ralph T1 - Bewertung der Korrosionsbeständigkeit von hochlegierten Werkstoffen in einem künstlichen Geothermiefluid unter Betriebsbedingungen T2 - GeoEn - Workshop: Korrosion - Herausforderung dür Energieerzeuger und Geothermie CY - Cottbus, Germany DA - 2012-06-05 PY - 2012 AN - OPUS4-32221 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - GEN ED - Böllinghaus, Thomas ED - Lexow, Jürgen ED - Kishi, T. ED - Kitagawa, M. T1 - Materials challenges and testing for supply of energy and resources KW - WMRIF KW - Nuclear fission water supply KW - Scarce elements PY - 2012 SN - 978-3-642-23347-0 SN - 978-3-642-23348-7 SP - 1 EP - 296 PB - Springer CY - Berlin, Heidelberg AN - OPUS4-32384 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Winkler, Rajko A1 - Linscheid, M. A1 - Jakubowski, Norbert A1 - Panne, Ulrich T1 - Optimization of metal labelling of antibodies by use of ESI-MS T2 - 14. JCF-Frühjahrssymposium CY - Rostock, Germany DA - 2012-03-18 PY - 2012 AN - OPUS4-33412 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Winkler, Rajko A1 - Linscheid, M. A1 - Jakubowski, Norbert A1 - Panne, Ulrich T1 - Optimization of metal labelling of antibodies by use of ESI-MS T2 - 45. DGMS-Jahrestagung CY - Poznan, Poland DA - 2012-03-04 PY - 2012 AN - OPUS4-33416 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Schröter, Maria-Astrid A1 - Weimann, Christiane A1 - Sturm, Heinz A1 - Holschneider, M. T1 - Bridging the scales: Direct SEM imaging of nanometer vibrations for the analysis of stick-slip behaviour at microscales T2 - EGU 2012 CY - Vienna, Austria DA - 2012-04-22 PY - 2012 AN - OPUS4-34330 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Wille, Frank A1 - Ballheimer, Viktor A1 - Rolle, Annette A1 - Droste, Bernhard T1 - Mechanical behaviour of high burn-up SNF under normal and accident transport conditions - present approaches and perspectives - T2 - PSAM 11 ESREL 2012 - 11th International probabilistic safety assessment and management conference & The annual european safety and reliability conference CY - Helsinki, Finland DA - 2012-06-25 KW - Spent fuel KW - High burn-up KW - Transport conditions KW - Mechanical analysis PY - 2012 SP - 1 EP - 9(?) AN - OPUS4-33850 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Wiggenhauser, Herbert A1 - Taffe, Alexander T1 - NDT in civil engineering: Research, application, validation and training T2 - 18th WCNDT - World conference on nondestructive testing CY - Durban, South Africa DA - 2012-04-16 KW - NDT KW - Civil engineering KW - Concrete KW - Validation KW - Training PY - 2012 SN - 978-0-620-52872-6 SP - 1 EP - 13 AN - OPUS4-34636 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Mayer, K. A1 - Chinta, P.K. A1 - Langenberg, K.-J. A1 - Krause, Martin T1 - Ultrasonic imaging of defects in known anisotropic and inmomogeneous structures with fast synthetic aperture methodes T2 - 18th WCNDT - World conference on nondestructive testing CY - Durban, South Africa DA - 2012-04-16 KW - SAFT KW - Pulse echo technique KW - Back propagation KW - Inverse scattering KW - Imaging PY - 2012 SN - 978-0-620-52872-6 SP - 1 EP - 20 AN - OPUS4-35101 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Ballier, G. A1 - Mayer, K. A1 - Langenberg, K.-J. A1 - Schulze, Sebastian A1 - Krause, Martin T1 - Improvement on tendon duct examination by modelling and imaging with synthetic aperture and one-way inverse methods T2 - 18th WCNDT - World conference on nondestructive testing CY - Durban, South Africa DA - 2012-04-16 KW - SAFT KW - Ultrasonic NDT KW - Concrete KW - One way KW - AFIT KW - Time reversal PY - 2012 SN - 978-0-620-52872-6 SP - 1 EP - 8 AN - OPUS4-35102 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Krüger, Oliver A1 - Simon, Franz-Georg T1 - Aufschluss, Trennung und Rückgewinnung von ressourcen-relevanten Metallen aus Rückständen thermischer Prozesse T2 - 8. Hamburger Abfallwirtschaftstage CY - Hamburg, Germany DA - 2012-01-31 PY - 2012 AN - OPUS4-33660 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Doroshtnasir, Manoucher A1 - Krankenhagen, Rainer A1 - Maierhofer, Christiane A1 - Block, N. A1 - Binder, P. T1 - Volumenstrombestimmung an gasdurchflossenen Düsen mit Thermografie T2 - DACH-Jahrestagung 2012 CY - Graz, Austria DA - 2012-09-17 KW - Turbinenschaufel KW - Volumenstrom KW - Thermografie KW - Transmissionsmessung PY - 2012 SN - 978-3-940283-44-3 IS - DGZfP-BB 136 SP - Poster 34, 1 EP - 7 AN - OPUS4-32832 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Maierhofer, Christiane A1 - Reischel, Mercedes A1 - Krankenhagen, Rainer A1 - Myrach, Philipp A1 - Steinfurth, Henrik A1 - Röllig, Mathias T1 - Anwendungsbereiche und Grenzen der Blitzthermografie - Entwicklung eines anwendungsnahen Standards T2 - DACH Jahrestagung 2012 CY - Graz, Österreich DA - 2012-09-17 PY - 2012 AN - OPUS4-32798 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Steppan, Enrico T1 - Wasserstoffunterstützte Kaltrissbildung in höchstfesten Feinkornbaustählen T2 - MDDK (Master-, Diplomanden- und Doktorandenkolloquium) CY - OvGU, Lehrstuhl Fügetechnik, Magdeburg, Deutschland DA - 2012-12-19 PY - 2012 AN - OPUS4-32776 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Steppan, Enrico T1 - Numerische Analyse der Kaltrissbildung in Schweißverbindungen aus hochfestem Feinkornbaustahl S1100QL am Beispiel eines T-Stoßes T2 - "Gemeinschaftsarbeitsausschuss NAS/NMP: Zerstörende Prüfung von Schweißverbindungen (DVS AG Q 4)" und des AG A 4.1 "Wasserstoffunterstützte Rissbildung" CY - Berlin, Deutschland DA - 2012-04-19 PY - 2012 AN - OPUS4-32777 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Griepentrog, Michael T1 - Dimension and mechanical property measurement of viscous materials – data generation T2 - MeProVisc stakeholders meeting CY - Garmisch-Partenkirchen, Germany DA - 2012-09-13 PY - 2012 AN - OPUS4-33211 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Griepentrog, Michael A1 - Reinstädt, Philipp T1 - Connectivity of ISO 14577 and Pharr´s concept of the “EFFECTIVE INDENTER SHAPE” T2 - PSE 2012 CY - Garmisch-Patenkirchen, Germany DA - 2012-09-10 PY - 2012 AN - OPUS4-33212 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Griepentrog, Michael T1 - Genauigkeit (precision) und Richtigkeit (trueness) der instrumentierten Eindringprüfung im Ergebnis der Revision der ISO 14577 T2 - Werkstoffprüfung 2012 CY - Bad Neuenahr DA - 2012-12-06 PY - 2012 AN - OPUS4-33213 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Erthner, Thomas A1 - Bertus, Norbert A1 - Dohse, Elmar A1 - Neubauer, Andreas A1 - Pelkner, Matthias A1 - Kreutzbruck, Marc T1 - Miniaturisierte Mehrkanalelektronik für die magnetische Streuflussprüfung N2 - Hohe Empfindlichkeit und Ortsauflösung sowie eine kurze Prüfzeit sind Anforderungen an ein leistungsfähiges Prüfsystem basierend auf magnetischen ZfP-Verfahren für die Oberflächenprüfung. Dieses soll das sichere Auffinden feinster Risse mit Tiefen von weniger als 50 Mikrometern gewährleisten. Um eine gute Ortsauflösung zu gewährleisten, müssen in der Regel der Defektgröße angepasste Sensoren zum Einsatz kommen. Speziell im Fall von Risslängen kleiner als ein Millimeter sollten die Sonden für die Streuflussprüfung ebenfalls Wirkbreiten kleiner als ein Millimeter aufweisen. Durch die daraus folgenden geringen Spurbreiten ergeben sich allerdings lange Prüfzeiten. Der begrenzten Prüfzeit und präzisionsbedingten mechanischen Grenzen in der Verfahr- Geschwindigkeit einer Sonde kann mit einem Multikanalansatz begegnet werden. Eine hohe Anzahl an Kanälen wiederum führt zu einem Platzproblem in der Prüfsonde, schließlich erfordert die Verstärkung schwacher Signale im eine Reihe von aktiven Bauelementen. Der Schlüssel zur Auflösung dieses Konflikts ist der Einsatz moderner Schaltkreise wie Multiplexer und FPGA. In diesem Beitrag stellen wir am Beispiel eines 48 kanaligen Testaufbaus für die GMR-basierte Streuflussprüfung ein flexibles miniaturisiertes Elektronikkonzept vor. Dabei gehen wir auf die einzelnen Komponenten zur Ansteuerung der Sensoren und zur Signalkonditionierung ein. Wir berichten vom Design, Aufbau und der Charakterisierung des Multikanalmoduls und seiner Erprobung im realen Prüfeinsatz. T2 - DACH-Jahrestagung 2012 CY - Graz, Austria DA - 2012-09-17 KW - GMR KW - Streufluss PY - 2012 UR - http://jt2012.dgzfp.de/Portals/jt2012/BB/p29.pdf SN - 978-3-940283-44-3 IS - DGZfP-BB 136 SP - Poster 29, 1 EP - 7 AN - OPUS4-32698 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - GEN A1 - Kühne, Hans-Carsten A1 - Schmidt, Wolfram A1 - Priebe, Nsesheye Susan T1 - SPIN - Spearhead Network for Innovative, Clean and Safe Cement and Concrete Technologies N2 - Globally, cement and concrete experts are at the cutting-edge to sustainable, green, healthy but nonetheless high-performance concrete. Today concrete is not yet well established in Africa, which offers the unique opportunity to build up a cement and concrete market based on the highest available state of technology. As this industry needs high level expertise, a central issue in implementation of skilled technology is crosslinking research institutions and laboratories. It should not be neglected that concrete is a product with low transport ranges. This means that an improved concrete market mainly supports the local economy without exceeding financial drains to the international market. Thus it fosters the fight against poverty, which is an urgent need in most African countries. The project aims to cross-link experts with industry and policy making bodies, aiming to establish sustainable cement and concrete construction in Africa. KW - High-performance concrete KW - Cement technologies KW - Concrete technologies KW - Sustainable development PY - 2012 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:b43-387428 N1 - Geburtsname von Priebe, Nsesheye Susan: Msinjili, N. S. - Birth name of Priebe, Nsesheye Susan: Msinjili, N. S. SP - 1 EP - 3 PB - Bundesanstalt für Materialforschung und -prüfung (BAM) CY - Berlin AN - OPUS4-38742 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Dmitriev, A. I. A1 - Österle, Werner A1 - Kloß, Heinz A1 - Orts-Gil, Guillermo T1 - A study of third body behaviour under dry sliding conditions. Comparison of nanoscale modelling with experiment N2 - Automotive brake pads consist of many components but it is still not entirely clear which role each of the elements of this complex composition plays to provide the specified regimes of sliding. This is due to the mutual interaction of multiscale mechanisms, realized during the friction. In this work we have attempted to partly answer this question using computer simulations. Since the simulation allows us to consider various combinations of the structure of the system being simulated ceteris paribus, it becomes possible to understand the role of each constituent sequentially. The main attention is paid to the structure and composition of the thin film that forms on the surface of both bodies as a result of compaction of the wear product, its chemical composition and oxidation. This layer, also named a third body or friction film, differs in composition and microstructure from the two first bodies. We considered a single contact for the steady state sliding when the structure and composition of friction films already are formed. As a modelling tool we used the method of movable cellular automata, which has well proven itself in solving of such tasks. We investigated the influence of modification of the structure and composition of the third body on the features of system behaviour at friction. To assess the adequacy of the numerical model, experimental studies with an artificial third body were also carried out. The Simulation results are in good agreement with experimental data. KW - Third body KW - Dry sliding KW - Mechanically mixed layer KW - Computer simulation PY - 2012 U6 - https://doi.org/10.3176/eng.2012.3.12 SN - 1736-6038 SN - 1736-7522 VL - 18 IS - 3 SP - 270 EP - 278 AN - OPUS4-38545 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Natte, Kishore A1 - Österle, Werner A1 - Friedrich, Jörg Florian A1 - von Klitzing, R. A1 - Orts-Gil, Guillermo T1 - Tuning interfacial properties and colloidal behavior of hybrid nanoparticles by controlling the polymer precursor N2 - A facile and versatile synthetic route for controlling the size and surface potential of organic–inorganic hybrid silica nanoparticles (NPs) is introduced in this paper. For polymer-grafted NPs, the density of polymer chains on the surface is strongly affected by the concentration of precursor. Nevertheless, for condensed NPs, the precursor concentration determines the particle size but not the density of polymer chains on the surface or the adsorption of bovine serum albumin (BSA). Results presented here may have Major implications in biomedical and colloidal chemistry since interfacial and colloidal properties are known to drive several processes associated with nanoparticles in biological media. KW - BSA KW - Bio-interface KW - Nanosilica hybrids KW - PEG KW - Protein corona PY - 2012 U6 - https://doi.org/10.1002/macp.201200148 SN - 0025-116X SN - 1022-1352 SN - 1521-3935 VL - 213 IS - 22 SP - 2412 EP - 2419 PB - Whiley-VCH CY - Weinheim AN - OPUS4-38549 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - VIDEO T1 - Drum prüfe, was sich ewig bindet - Prüfen mit Fliehkraft N2 - Beschichtungen, Klebverbindungen und Kompositwerkstoffe sind auf ihre Haftfestigkeit, Fügefestigkeit oder Verbundfestigkeit zu prüfen. Bisher wurden diese Prüfungen als aufwändige Einzeltests mit der Zugprüfmaschine durchgeführt. Mit einer neuartigen Zentrifuge geht dies nun viel einfacher. Nun wird die Fliehkraft zur Prüfung der Verbundfestigkeit eingesetzt. Forscher an der BAM haben das Prüfprinzip entwickelt. Für die Umsetzung der neuartigen Technologie im Bereich Materialprüfung, insbesondere der innovativen Hard- und Softwarelösungen, wurde die LUM GmbH mit dem Innovationspreis Berlin-Brandenburg 2012 ausgezeichnet. KW - Oberflächenmodifizierung KW - Oberflächenmesstechnik PY - 2012 VL - 69 PB - Bundesanstalt für Materialforschung und -prüfung (BAM) CY - Berlin AN - OPUS4-45584 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - VIDEO T1 - So test therefore N2 - Coatings, adhesive-bonded joints and composites have to be tested for their adhesive, bonding and tensile strength. Until now, these tests have been time-consuming single-sample tests in a tensile testing machine. By means of centrifuge technology, tests are much easier now as centrifugal force serves as testing force. Scientists at BAM have developed the test principle, the implementation of this new technology in a testing device was realized by LUM GmbH. In recognition of innovative hard and software solutions, the Berlin-Brandenburg Innovation Award 2012 was given to LUM GmbH. KW - Measurement Technique KW - Surface Modification PY - 2012 VL - 70 PB - Bundesanstalt für Materialforschung und -prüfung (BAM) CY - Berlin AN - OPUS4-45585 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - GEN A1 - Sauer, Andreas A1 - Scharf, Holger A1 - Becker, Roland T1 - Bericht zum 18. BAM-Ringversuch "Altlasten" N2 - Präsentation der Ergebnisse eines Ringversuchs zur Kompetenzbewertung von Prüflaboratorien auf dem Gebiet der anorganischen und organischen Bodenanalytik. KW - Eignungsprüfung KW - Boden KW - MKW KW - PAK KW - Gesamtcyanid KW - Spurenelemente KW - Proficiency testing KW - Soil KW - TPH KW - PAH KW - Total cyanide KW - Trace elements PY - 2012 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:b43-357399 SP - 1 EP - 226 PB - Bundesanstalt für Materialforschung und -prüfung (BAM) CY - Berlin AN - OPUS4-35739 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - GEN T1 - Untersuchung der Statistik "Unfälle mit wassergefährdenden Stoffen" des Statistischen Bundesamtes aus dem Jahr 2008 im Vergleich zu den Vorjahren N2 - Die BAM untersucht regelmäßig Statistiken über Unfälle mit wassergefährdenden Stoffen sowie Datenerhebungen zu Gefahrgutunfällen. Ziel ist es, Hinweise zu Tendenzen und Lücken abzuleiten, die möglicherweise Anlass für weitere Aktivitäten und Maßnahmen geben, z. B. im rechtlichen Bereich oder in der Praxis. Regelmäßig beobachtete Unfallstatistiken über Jahre geben einen guten Überblick über das Unfallgeschehen in Deutschland. Dieser Bericht betrachtet das Jahr 2008 im Vergleich zu den Vorjahren. KW - Gefahrgutunfälle KW - Unfallstatistik KW - Wassergefährdende Stoffe PY - 2012 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:b43-354988 SP - 1 EP - 93 PB - Bundesanstalt für Materialforschung und -prüfung (BAM) CY - Berlin AN - OPUS4-35498 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Schendler, Thomas T1 - Ereignisauswertung der KAS-Beispiele und Konsequenzen T2 - Sicherheitstechnischer Erfahrungsaustausch CY - Karlsruhe DA - 2012-04-17 PY - 2012 AN - OPUS4-35219 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Nguyen, V. H. A1 - Ren, Y. A1 - Lee, Y. R. A1 - Tuma, Dirk A1 - Min, B.-K. A1 - Shim, J.-J. T1 - Microwave-assisted synthesis of carbon nanotube-TiO2 nanocomposites in ionic liquid for the photocatalytic degradation of methylene blue N2 - A simple and efficient method of preparing composites of carbon nanotubes and titania (CNT-TiO2) is reported via a microwave-assisted synthesis in an ionic liquid, [bmim][BF4]. CNT-TiO2 nanocomposites were formed by the thermal decomposition of titanium (IV) isopropoxide (Ti(OPri)4) in the presence of CNTs under microwave irradiation. The obtained product was characterized by BET surface area, XRD, SEM, and TEM. TiO2 particles with average size of 9 nm were as anatase. The surface area of the Composites increased with an increase of CNT content. Moreover, the catalytic efficiency of the composite was investigated through the photoelectrodegradation of methylene blue. KW - Carbon nanotube KW - Ionic liquid KW - Microwave KW - Photocatalyst KW - TiO2 nanoparticles PY - 2012 U6 - https://doi.org/10.1080/15533174.2011.610021 SN - 1553-3174 SN - 1553-3182 VL - 42 IS - 2 SP - 296 EP - 301 PB - Taylor and Francis Group, LLC CY - London AN - OPUS4-35895 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CHAP A1 - Tuma, Dirk A1 - Maurer, G. ED - Visser, A. E. ED - Bridges, N. J. ED - Rogers, R. D. T1 - Gas solubility in ionic liquids: Mixed gases in pure ionic liquids and single gases in binary liquid mixtures N2 - In the last two decades, the solubility of gases in ionic liquids has attracted a lot of attention. While at the beginning most publications dealt with the solubility of a single gas in a pure ionic liquid, recently the interest starts to shift to the – from an application-oriented point of view – more challenging area of the simultaneous solubility of several gases in an ionic liquid and/or the solubility of a single gas in solvent mixtures with ionic liquids. The current state of information on experimental data (and the phenomena encountered) in such systems is summarized and discussed. KW - Ionic liquids KW - Gas solubility KW - Phase equilibria PY - 2012 SN - 9780841227637 SN - 9780841227644 U6 - https://doi.org/10.1021/bk-2012-1117.ch010 VL - 1117 SP - Chapter 10, 217 EP - 238 PB - American Chemical Society CY - Washington DC AN - OPUS4-35897 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Marzok, Ulrich A1 - Müller, Ralf A1 - Schadrack, Reinhard A1 - Krauhausen, M. A1 - Reetz, R. T1 - Hochtemperatur-Laserprofilometrie für keramische Proben N2 - Das Hochtemperatur-Laserprofilometer der BAM4 ermöglicht eine 3D-Formerkennung an keramischen Folien oder anderen flachen Objekten während thermischer Behandlungen wie zum Beispiel bei laufenden Entbinderungs- oder Sinterprozessen. Mit dem Lasertriangulationssensor werden das Höhenprofil, die lateralen und axialen Schwindungen und andere charakteristische Maße der Probe wie die Folienbreite und -dicke, Abstände zwischen spezifischen Merkmalen oder Krümmungen bestimmt. Somit können insbesondere auch Deformationen und Verwerfungen der Objekte sowie Schwindungsinhomogenitäten an strukturierten Objekten erkannt und mit dem Herstellungsprozess verknüpft werden. T2 - DKG Jahrestagung 2012 CY - Nuremberg, Germany DA - 05.03.2012 KW - 3D-Formerkennung KW - Lasertriangulationssensor KW - Deformationen KW - Schwindungsinhomogenitäten PY - 2012 AN - OPUS4-35787 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - GEN A1 - Krüger, Oliver A1 - Riedel, Maren A1 - Christoph, Gabriele A1 - Kalbe, Ute A1 - Berger, Wolfgang ED - Rauch, S. ED - Morrison, G.M. T1 - Assessment of total petrol and polycyclic aromatic hydrocarbon mobility in soils using leaching tests N2 - The risk assessment of total petrol hydrocarbons (TPH) and polycyclic aromatic hydrocarbons (PAH), two of the most frequent soil and water contaminants, has to include their exposure pathways, especially the soil groundwater pathway. Threshold values have to be aquired for the amendment to the German Federal Soil Protection Contaminated Sites Ordinance. For this purpose, a batch experiment with a liquid to solid ratio (L/S) of 2 L/kg was developed. Aim of this work was to verify the robustness of this leaching procedure for TPH and PAH in different soil types against varying test conditions. Also, stir bar sorptive extraction (SBSE) was tested as alternative sample preparation of eluates for PAH analysis. KW - TPH KW - PAH KW - SBSE KW - Liquid-liquid extraction KW - Batch tests PY - 2012 SN - 978-94-007-2539-3 SN - 978-94-007-2540-9 U6 - https://doi.org/10.1007/978-94-007-2540-9_36 SN - 1571-4780 N1 - Geburtsname von Riedel, Maren: Kolepki, M. - Birth name of Riedel, Maren: Kolepki, M. N1 - Serientitel: Alliance for Global Sustainability Bookseries – Series title: Alliance for Global Sustainability Bookseries VL - 19 SP - 393 EP - 402 PB - Springer AN - OPUS4-33342 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Andrade, M. A. B. A1 - Stindt, Arne A1 - Panne, Ulrich A1 - Riedel, Jens A1 - Adamowski, J. C. T1 - Numerical and experimental determination of the sound pressure distribution in single-axis acoustic levitators N2 - This paper presents a numerical and an experimental procedure to obtain the pressure field in single-axis acoustic levitators. Numerically, the pressure field is determined by a matrix method based on the Rayleigh integral that take into account the multiple wave reflections that occur between the transducer and the reflector. The numerical pressure field is compared with the acoustic pressure measured by an earplug microphone, that is connected to a hollow needle. The tip of the needle is moved by a µm translation stage through the field and the signal is recorded using a lock-in amplifier locked to the levitator frequency. The pressure field obtained numerically show good agreement with that obtained experimentally. T2 - 2012 IEEE International Ultrasonics Symposium (IUS) CY - Dresden, Germany DA - 2012-10-07 KW - Acoustic levitation KW - Matrix method KW - Pressure field PY - 2012 SN - 978-1-4673-4562-0 U6 - https://doi.org/10.1109/ULTSYM.2012.0690 SN - 1948-5719 SP - 2754 EP - 2757 AN - OPUS4-32587 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Herbst, Tristan A1 - Gluth, Gregor A1 - Rübner, Katrin A1 - Kühne, Hans-Carsten T1 - SCM: living up to the standard N2 - European and Germany regulations demand an elaborate waste management to save natural resources, reduce waste volumes deposited at landfills and enhance sustainable development by recycling of various residues. Research into the use of these materials in the construction sector and other fields is a positive step forward in achieving these objectives. BAM shares its latest findings. PY - 2012 SN - 0959-6038 IS - September SP - 115 EP - 117 PB - Holbrook & Son CY - Dorking AN - OPUS4-30409 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Auersch, Lutz T1 - Train induced ground vibrations: different amplitude-speed relations for two layered soils N2 - Ground vibrations created by running high-speed trains at speeds between 100 and 320 km/h are calculated in detail using transfer functions to model the effects of the moving loads. These transfer functions for layered soils are obtained by integration in the wavenumber domain. The train-induced vibrations in a soil that is considered to consist of single layers of two slightly different soils are analysed for different excitations: for their spectra, attenuation laws and amplitude-speed relations. An important mid-frequency component is shifted through the cut-on region of the layered soil with an increase in the train speed. The cut-on frequency divides the response of the layered soil into a low-frequency low-amplitude range and a high-frequency high-amplitude range. This leads to completely different train speed dependencies for the two soil layers with strongly increasing amplitudes around the cut-on frequency and almost constant amplitudes beyond this frequency. All calculated results closely agree with ground vibration measurements at two corresponding sites, especially if the mid-frequency component is calculated by axle impulses. KW - Ground vibration KW - Layered soil KW - Wavenumber integrals KW - Moving load KW - Excitation forces KW - High-speed trains KW - Measured railway vibrations PY - 2012 U6 - https://doi.org/10.1177/0954409712437305 SN - 0954-4097 VL - 226 IS - 5 SP - 469 EP - 488 PB - Sage Publ. CY - London AN - OPUS4-31162 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - RPRT A1 - Kalbe, Ute A1 - Witt, K. J. A1 - Simon, Franz-Georg A1 - Prohaska, S. A1 - Slowik, V. T1 - Bedingungen suffosiver Erosionsphänomene in Böden N2 - Für eine detaillierte Analyse der Gefüge- und Porenstruktur weitgestufter Erdstoffe ist es notwendig, diese dreidimensional (3D) zu visualisieren und ihre Kenngrößen zu ermitteln. Dazu wurde an der BAM eine Präparationsmethode entwickelt, die es ermöglicht die Porenstruktur von Probenkörpern aus suffosiven Erdstoffen und definierten Korngrößenverteilungen über CT-Aufnahmen abzubilden. Über eine eigens dafür, in Zusammenarbeit mit dem Zuse-Institut Berlin (ZIB), entwickelte Bildanalysemethode wurden die Strukturdaten visualisiert. Aus dem Bilddatensatz konnte bereits in der Rückwärtsrechnung eine Kornverteilungslinie zur Validierung generiert und mit experimentell ermittelten Sieblinien verglichen werden. Des Weiteren wurden in Säulenexperimenten Kornumlagerungsprozesse unter der Verwendung von CT-Aufnahmen beobachtet. Als eine weitere Möglichkeit zur Beschreibung von Gefüge- und Porenstrukturen wurden Kugelpackungen modelliert und deren Strukturdaten ermittelt. Mit einem an der HTWK entwickelten stochastisch-heuristischen Algorithmus lassen sich wirklichkeitsnahe 3D-Gefügemodelle aus kugelförmigen Feststoffpartikeln generieren. Die Kornverteilung ist dabei wählbar. Für die erstellten Gefügemodelle kann der vollständige Porengraph einschließlich der Porengrößen und Engstellen ermittelt und ausgelesen werden. Ein an der BAM entwickelter und durch die BUW erweiterter Säulenversuch unter Verwendung systematisch veränderter Korngemische von natürlichen Gesteinskörnungen und Glaskugeln ergab weitere Aufschlüsse über die strukturbildenden Fraktionen des Korngerüstes. Die Perkolationstheorie ist eine moderne wahrscheinlichkeitstheoretische Methode, um Fluss- und Transportvorgänge innerhalb poröser Medien zu simulieren. Über Porennetzwerkmodelle werden die komplexen Fließwege in der Porenstruktur vereinfacht abgebildet. An der BUW wurde ein 3D-Bond-Perkolationsmodell auf einem simplen kubischen Gitter realisiert, in dem die Gitterknoten die Poren und die Gitterstäbe die Porenengstellen repräsentieren. Lokale und globale Strukturveränderungen infolge Partikeltransports werden über die Analyse von Porenräumen beschrieben. Mit diesem Perkolationsmodell können Aussagen zur lokalen und globalen Strukturveränderung durch Partikeltransport in definierten Bodenvolumen abgeleitet werden. Die hergeleiteten Zusammenhänge zu den suffosiven Materialtransportbedingungen mit der Perkolationstheorie sind für homogene, isotrope und selbstähnliche Erdstoffgefüge gültig. KW - Wasserbau KW - Bodenmechanik PY - 2012 VL - SI 1382/1-2 SP - 1 EP - 24 AN - OPUS4-52427 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Kind, Thomas T1 - Ortung von Spanngliedern zum schadensfreien Bohren im Rahmen von Ertüchtigungsmaßnahmen N2 - Am Beispiel der Ertüchtigung einer Brücke in Bremen wird gezeigt, wie mit den zerstörungsfreien Prüfverfahren (ZfP) Radar- und Ultraschall die genau Lage vorgespannte Bewehrung gefunden bzw. bestätigt werden kann. Im Rahmen von Ertüchtigungsmaßnahmen an Spannbetonbrücken werden häufig Kernbohrungen durchgeführt, die die vorhandenen Spannbewehrungen nicht beschädigen dürfen. Es wird die Vorgehensweise beschrieben, wie mit ZfP ein wesentlicher Beitrag geleistet wird, das Risiko einer Beschädigung zu minimieren und somit eine bessere Planungssicherheit für die Ertüchtigungsmaßnahmen zu schaffen. Dabei werden auch die Grenzen der bei den Verfahren aufgezeigt. T2 - Fachtagung Bauwerksdiagnose 2012, Praktische Anwendungen Zerstörungsfreier Prüfungen und Zukunftsaufgaben CY - Berlin, Germany DA - 23.02.2012 KW - Radar KW - Zerstörungsfreie Prüfung KW - Stahlbeton KW - Ultraschall PY - 2012 AN - OPUS4-39821 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Kind, Thomas T1 - Ortung von Spanngliedern zum schadensfreien Bohren im Rahmen von Ertüchtigungsmaßnahmen N2 - Am Beispiel der Ertüchtigung einer Brücke in Bremen wird gezeigt, wie mit den zerstörungsfreien Prüfverfahren (ZfP) Radar- und Ultraschall die genau Lage vorgespannte Bewehrung gefunden bzw. bestätigt werden kann. Im Rahmen von Ertüchtigungsmaßnahmen an Spannbetonbrücken werden häufig Kernbohrungen durchgeführt, die die vorhandenen Spannbewehrungen nicht beschädigen dürfen. Es wird die Vorgehensweise beschrieben, wie mit ZfP ein wesentlicher Beitrag geleistet wird, das Risiko einer Beschädigung zu minimieren und somit eine bessere Planungssicherheit für die Ertüchtigungsmaßnahmen zu schaffen. Dabei werden auch die Grenzen der beiden Verfahren aufgezeigt. T2 - Fachtagung Bauwerksdiagnose 2012 - Praktische Anwendungen zerstörungsfreier Prüfungen und Zukunftsaufgaben CY - Berlin, Germany DA - 23.02.2012 KW - Radar KW - Zerstörungsfreie Prüfung KW - Stahlbeton KW - Ultraschall PY - 2012 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:b43-398225 SN - 978-3-940283-40-5 VL - 134 (Vortrag 11) SP - 1 EP - 7 PB - Deutsche Gesellschaft für Zerstörungsfreie Prüfung (DGZfP) CY - Berlin, Germany AN - OPUS4-39822 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Kind, Thomas T1 - GPR Development and Applications in Germany N2 - The presentation was an invited talk for the final meeting of the Mara Nord Project. Projects purpose is to demonstrate the potential of GPR method use in road condition measurement and rehabilitation planning to the Nordic market. This will be achieved through cooperation between Finland, Sweden and Norway. The presentation gives an overview of road condition measurement and rehabilitation planning in Germany and several different kind of GPR applications in Germany. T2 - Ground Penetrating Radar in Road Monitoring and Evaluation Now and the Future - Seminar (Mara Nord Project) CY - Trondheim, Norway DA - 18.04.2012 KW - Radar KW - Road inspection KW - Non-destructive testing PY - 2012 AN - OPUS4-39816 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - GEN A1 - Igartua, A. A1 - Fdez-Pérez, X. A1 - Illarramendi, I. A1 - Luther, R. A1 - Rausch, J. A1 - Woydt, Mathias ED - Carmo, J. P. ED - Ribeiro, J. E. T1 - Biolubricants and triboreactive materials for automotive applications N2 - The text deals with passenger car motor oils (PCMO) with reduced metal-organic additives. KW - Biolubricants KW - Passenger car motor oils (PCMO) KW - Automotive KW - Tribology PY - 2012 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:b43-464317 SN - 978-9-53510-698-2 SP - 119 EP - 146 PB - INTECH CY - Rijeka, Croatia AN - OPUS4-46431 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - GEN A1 - Wilrich, Cordula A1 - Schröder, Volkmar A1 - Brandes, E. A1 - Schmidt, Martin A1 - Wandrey, Peter-Andreas A1 - Mix, K.-H. A1 - Wehrstedt, Klaus-Dieter A1 - Bender, H. A1 - Stephan, U. A1 - Eberz, A. A1 - Steinbach, J. A1 - Stoessel, F. T1 - Plant and process safety - 2. Hazardous materials and process conditions N2 - "Ullmann's Encyclopedia of Industrial Chemistry" is the benchmark reference in chemistry and chemical and life science engineering, covering inorganic and organic chemicals, advanced materials, pharmaceuticals, polymers and plastics, metals and alloys, biotechnology and biotechnological products, food chemistry, process engineering and unit operations, analytical methods, environmental protection, and much more. The present article is part of the topic collection "Environmental Protection and Industrial Safety". It covers plant and process safety, focusing on hazardous materials and process conditions. KW - Flammable gases and vapors KW - Combustibility of liquids KW - Dust explosions KW - Explosive condensed substances KW - Harmful effects of substances KW - Exothermic and pressure-inducing chemical reactions PY - 2012 SN - 978-3-527-30673-2 U6 - https://doi.org/10.1002/14356007.q20_q01 SP - 1 EP - 50 PB - Wiley-VCH CY - Weinheim AN - OPUS4-58108 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Richter, Matthias A1 - Beck, O. A1 - Wilke, Olaf A1 - Pyza, Lars A1 - Seeger, Stefan T1 - Test procedure for the evaluation of adsorptive buildings materials T2 - Healthy Buildings 2012 - 10th International Conference CY - Brisbane, Australia DA - 2012-07-08 PY - 2012 AN - OPUS4-27449 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - RPRT A1 - Bresch, Harald A1 - Dörfel, Ilona A1 - Steinborn, Gabriele A1 - Krietsch, Arne A1 - Langner, Jeanette A1 - Schmidt, Martin A1 - Österle, Werner A1 - Seeger, Stefan T1 - Physical-chemical characterization of NM105(P25) N2 - NM 105, Ti02 (P25) could not be ignited as dust layer and dispersed in air as dust/air-mixture as well. This dust is not dust explosible and the burning behaviour corresponds to Burning Class 1 (no Ignition). The results have shown that the tested sample is thus not combustible at all, because it is already oxidized completely. KW - OECD KW - WPMN KW - TiO2 KW - NM105 KW - P25 KW - Sponsorship programme PY - 2012 SP - 1 EP - 18 PB - Bundesanstalt für Materialforschung und -prüfung (BAM) CY - Berlin AN - OPUS4-27322 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Wiegner, Katharina A1 - Hahn, Oliver A1 - Farke, M. A1 - Stephan, Ina A1 - Nohr, Michael A1 - Horn, Wolfgang T1 - Development of methods for testing of microbiological contamination of small climate control units for air in display cases T2 - Healthy Buildings 2012 - 10th International conference CY - Brisbane, Australia DA - 2012-07-08 KW - Microbiological contamination KW - Acetic and formic acid KW - Conductivity KW - Climate control device KW - Display case KW - Normung KW - Geruch KW - Messmethoden KW - Emissionsmessung KW - Bauprodukte PY - 2012 SN - 978-1-921897-40-5 SP - 1 EP - 2 (5H.2) AN - OPUS4-27562 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Müller, B. A1 - Jann, Oliver A1 - Horn, Wolfgang A1 - Panaskova, J. A1 - Müller, D. A1 - Plehn, W. T1 - Sensory tests for building materials and rooms - Status of the standardisation T2 - Healthy Buildings 2012 - 10th International conference CY - Brisbane, Australia DA - 2012-07-08 KW - sensory evaluation of building materials and rooms KW - Perceived air quality KW - Standardisation KW - Label KW - Normung KW - Geruch KW - Messmethoden KW - Emissionsmessung KW - Bauprodukte PY - 2012 SN - 978-1-921897-40-5 SP - 1 EP - 6 (3E.5) AN - OPUS4-27561 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Richter, Matthias A1 - Beck, Oliver A1 - Wilke, Olaf A1 - Pyza, Lars A1 - Seeger, Stefan T1 - Test procedure for the evaluation of adsorptive building materials T2 - Healthy Buildings 2012 - 10th International conference CY - Brisbane, Australia DA - 2012-07-08 KW - Air cleaning KW - Sorptive construction materials KW - Test procedure KW - Volatile organic compound KW - Test gas generation KW - Healthy homes and buildings KW - Material and construction KW - Product safety KW - Risk assessment PY - 2012 SN - 978-1-921897-40-5 SP - 43 EP - 44 (Session 4B) AN - OPUS4-27558 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Wilke, Olaf A1 - Schulz, Christian A1 - Richter, Matthias T1 - Test chamber measurements for the robustness validation of the test method for the determination of VOC-emissions from construction products into indoor air T2 - Healthy Buildings 2012 - 10th International conference CY - Brisbane, Australia DA - 2012-07-08 KW - VOC KW - Emission studies KW - Product safety KW - Emission test chamber PY - 2012 SN - 978-1-921897-40-5 SP - 1 EP - 2 (1D.2) AN - OPUS4-27560 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Seeger, Stefan A1 - Barthel, Mathias T1 - Particle emission from laser printing devices - Analysis and problem treatment within the German Blue Angel ecolabel for office machines T2 - Healthy Buildings 2012 - 10th International conference CY - Brisbane, Australia DA - 2012-07-08 KW - Ultrafine particle sources KW - Ultrafine particle emission KW - Health effects KW - Product safety KW - Standards PY - 2012 SN - 978-1-921897-40-5 SP - 1 EP - 6 (4F.1) AN - OPUS4-27524 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Mull, Birte A1 - Wiegner, Katharina A1 - Horn, Wolfgang T1 - Comparison of different air sampling adsorbents for a screening method for SVOC T2 - Healthy Buildings 2012 - 10th International conference CY - Brisbane, Australia DA - 2012-07-08 KW - Biocides KW - Air sampling KW - Micro-chamber KW - SDVB-polymer PY - 2012 SN - 978-1-921897-40-5 SP - 1 EP - 2 (6B.2) AN - OPUS4-27569 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Horn, Wolfgang A1 - Wiegner, Katharina A1 - Hahn, Oliver A1 - Mull, Birte A1 - Nohr, Michael A1 - Stephan, Ina A1 - Farke, M. T1 - Developement of methods for testing of microbiological contamination of small climate control units for air in display cases T2 - Healthy Buildings 2012 CY - Brisbane, Australia DA - 2012-07-08 PY - 2012 AN - OPUS4-26228 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Horn, Wolfgang A1 - Wiegner, Katharina A1 - Jann, Oliver A1 - Hahn, Oliver A1 - Farke, M. T1 - Assessment of Emissions from Materials for Museum Equipment T2 - Healthy Buildings 2012 CY - Brisbane, Australia DA - 2012-07-08 PY - 2012 AN - OPUS4-26229 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Wilke, Olaf A1 - Richter, Matthias A1 - Brödner, Doris T1 - Emission study of furniture boards for the next version of the German eco label "Blue Angel" for wood and wooden products (RAL-UZ 38) T2 - 10th International Conference Healthy Buildings 2012 CY - Brisbane, Australia DA - 2012-07-08 PY - 2012 AN - OPUS4-26947 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Horn, Wolfgang A1 - Wiegner, Katharina A1 - Nohr, Michael A1 - Richter, M. T1 - Development of a reference for the measurement of S(VOC) in Emission test chambers T2 - Healthy Buildings 2012, 10th International Conference CY - Brisbane, Australia DA - 2012-07-08 PY - 2012 AN - OPUS4-27494 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Seeger, Stefan T1 - Konzepte zur ISO-Kalibrierung der Messung von Partikelgrößen und Partikelanzahlkonzentrationen T2 - Symposium: Ultrafeine Partikel (UFP) in der städischen Außenluft CY - Berlin, Germany DA - 2012-05-24 PY - 2012 AN - OPUS4-26067 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Barthel, Mathias A1 - Fiedler, J. A1 - Giacomini, M. A1 - Moriske, H.-J. A1 - Seeger, Stefan A1 - Thurner, J.-U. T1 - Partikelemissionen aus Laserdruckern - Aktueller Sachstand N2 - Partikelemissionen aus Laserdruckern sind seit längerem bekannt und wurden bislang als Feinstaubmasse bei der Prüfwertvergabe für den Blauen Engel begrenzt. Seit einigen Jahren weiß man, dass neben den Feinstaubpartikeln auch ultrafeine Partikel beim Betrieb von Laserdruckern emittiert werden. Diese Emissionen lassen sich nur eingeschränkt bis gar nicht über Nachrüstfilter am Druckgerät minimieren. Das Umweltbundesamt (UBA) hat dies zum Anlass genommen, die Prüfvorgaben für den Blauen Engel im Hinblick auf die Erfassung ultrafeiner Partikel anzupassen und zu verschärfen. UBA hat hierzu einen Forschungsauftrag an die Bundesanstalt für Materialforschung und -prüfung (BAM) vergeben. Testverfahren und Prüfvorgaben sind nunmehr erarbeitet und werden im Beitrag vorgestellt. Die geänderten Prüfbedingungen sollen ab 2013 in die Prüfvorgabe eingeführt werden. Etwa drei Viertel der derzeit am Markt erhältlichen Laserdrucker werden die strengen Prüfvorgaben nicht erfüllen können. N2 - Particle emissions from laser printers are since longer time well-known. The total particulate mass (fine dust) is already limited within the Blue Angel basic criteria. For some years we know that besides fine particles (FP) also the ultrafine particle (UFP) fraction is relevant for health impact assessment. These particles are also emitted by laser printing devices. Particle filter systems, fixed outside the printing device housings, do not provide a general solution to the minimization of UFP emissions. The Federal Environment Agency of Germany (UBA) therefore decided to update the existing test procedure and its basic criteria for the Blue Angel ecolabel by considering also the number of ultra fine particles. For this project, UBA contracted the Federal Institute for Materials Research and Testing (BAM). As an outcome, the draft proposal for the extended test procedure along with particle emission limits is presented here. The changed basic criteria are to be set into force by January 2013. It is expected that approximately three-quarters of the printers currently available on the market will not meet these strict test criteria. KW - Laserdrucker KW - Blauer Engel KW - UFP KW - FP KW - Partikelemissionen PY - 2012 SN - 2190-1120 SN - 2190-1147 VL - 1 SP - 23 EP - 29 PB - BfS CY - Berlin AN - OPUS4-25922 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Wiegner, Katharina A1 - Hahn, Oliver A1 - Horn, Wolfgang A1 - Farke, M. A1 - Kalus, Sabine A1 - Nohr, Michael A1 - Jann, Oliver T1 - Determination of formic and acetic acid emissions in indoor air or from building products N2 - Several construction and building materials, including wood, glue and coatings, are possible sources of very volatile organic compounds (VVOCs) and volatile organic compounds (VOCs) like formic and acetic acid. Due to very high air tightness and very low air exchange rates in new buildings concentrations of these harmful substances can increase considerably. To minimize the risk, emissions from building products should be identified and quantified. With the common standard method, this means Tenax® sampling followed by thermal desorption and GC-MS analysis, these acids could not be detected sufficiently. The aim oft this study is the comparison of two different methods for the determination of acetic and formic acid. The sampling of method one, which is usually used for identification and quantification of VOCs, is done in accordance with ISO 16000-6 and ISO 16017-1 on Carbotrap® 202 multi-bed thermal desorption tube by subsequent identification and quantification with GC-MS. Method two is based on sampling on 2,4-dinitrophenylhydrazine (DNPH) cartridges, derivatisation, elution, identification and quantification of the derivatives with LC-MS/MS (liquid chromatography – mass spectrometry/mass spectrometry). N2 - Viele Konstruktions- und Baumaterialien, wie Holz, Kleber und Anstriche, sind mögliche Quellen für leicht flüchtige organische Verbindungen (VVOC) und flüchtige organische Verbindungen (VOC), wie Ameisen- und Essigsäure. Bedingt durch die hohe Dichtigkeit und den damit verbundenen niedrigen Luftwechsel in neuen Gebäuden können die Konzentrationen dieser gesundheitsgefährdenden Substanzen beträchtlich ansteigen. Um das Risiko zu minimieren, sollen Emissionen aus Bauprodukten identifiziert und quantifiziert werden. Mit der üblichen Standardmethode, die auf einer Luftprobenahme auf Tenax® und anschließender Analyse mittels GC-MS basiert, können diese Säuren nicht ausreichend detektiert werden. Ziel dieser Arbeit ist der Vergleich von zwei unterschiedlichen Methoden zur Bestimmung von Essig- und Ameisensäure. Die Luftprobenahme der ersten Methode, die üblicherweise zur Identifizierung und Quantifizierung von VOC genutzt wird, wurde gemäß ISO 16000-6 and ISO 16017-1 auf Carbotrap® 202, ein mit mehreren Adsorbentien gepacktes Thermodesorptionsrohr, mit anschließender Identifikation und Quantifizierung mittels GC-MS durchgeführt. Die zweite Methode basiert auf einer Luftprobenahme mittels 2,4-Dinitrophenylhydrazin-(DNPH)-Kartuschen, Derivatisierung, Elution, Identifikation und Quantifizierung der Derivate mit LC-MS/MS (Flüssigkeitschromatographie – Massenspektometrie/Massenspektometrie). KW - Formic acid KW - Acetic acid KW - VVOCs KW - Air sampling KW - DNPH PY - 2012 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:b43-255911 UR - http://www.gefahrstoffe.de/gest/article.php?data[article_id]=65887 SN - 0949-8036 SN - 0039-0771 SN - 1436-4891 VL - 72 IS - 3 SP - 84 EP - 88 PB - Springer-VDI-Verlag CY - Düsseldorf AN - OPUS4-25591 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Wiegner, Katharina A1 - Farke, M. A1 - Horn, Wolfgang A1 - Jann, Oliver A1 - Hahn, Oliver T1 - Den Schadstoffen auf der Spur - Die Bewertung von Emissionen aus Materialien für Museumsausstattungen mithilfe des neuen BEMMA-Schemas N2 - Ausstellungskuratoren, Restauratoren oder Fachplaner stehen immer wieder vor der Entscheidung, geeignete Materialien für Museumsausstattungen auswählen zu müssen. Vitrinen, Depoteinrichtungen, aber auch Transportverpackungen für Kunst- und Kulturgut sollten unbedingt frei von Schadstoffen sein. Ein neues Verfahren ermöglicht nun eine problemorientierte Untersuchung und Bewertung von Materialien mit belastbaren und reproduzierbaren Ergebnissen. KW - BEMMA KW - Emissionsarme Vitrine KW - Schadstoffe PY - 2012 SN - 0933-4017 VL - 3 SP - 38 EP - 44 PB - Callwey CY - München AN - OPUS4-25794 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - RPRT A1 - Wilke, Olaf A1 - Wiegner, Katharina A1 - Jann, Oliver A1 - Brödner, Doris A1 - Scheffer, Harald T1 - Emissionsverhalten von Holz und Holzwerkstoffen (UBA-FB 001580) N2 - In diesem Vorhaben wurden 8 OSB-Platten und sieben Leimholzplatten aus Baumärkten gemäß den Vorgaben des AgBB-Schemas in Emissionsmesskammern geprüft. Hinzu kamen Messungen an 17 im Technikum hergestellten OSB, an denen der Einfluss von Herstellungsparametern auf VOCEmission untersucht wurde. Grundsätzliches Ziel war es, durch die Untersuchungen Lösungsansätze für die Emissionsminderung von VOC aus Holzwerkstoffen zu finden. Dazu wurde auch der Einsatz von Antioxidantien bei der OSB-Herstellung getestet. Die Emissionen des Rohstoffes Kiefernholz wurden an 6 Proben aus Splint- oder Kernholz aus unterschiedlichen Stammabschnitten einer frisch gefällten Kiefer untersucht. Insgesamt konnte mit dem Projekt gezeigt werden, dass einige der im Handel erhältlichen OSB und auch Leimhölzer eine Bewertung nach dem AgBB-Schema aufgrund von zu hohen Aldehyd- und Terpenemissionen nicht bestehen. Für die Aldehydemissionen (insbesondere Hexanal und ungesättigte höhere Aldehyde) konnte durch den Einsatz von Antioxidantien bei der OSB-Herstellung eine Verminderung auf ein Drittel erreicht werden, allerdings stiegen dadurch die Terpenemissionen an. In this project, eight Oriented Strand Boards (OSB) and seven plywood boards from DIY stores were tested in emission test chambers according to the AgBB scheme’s specifications. In addition, 17 OSBs manufactured in a pilot plant were tested to investigate the effect of production parameters on VOC emission. The use of antioxidants in OSB production was also tested. The main objective of the investigation was to find potential solutions for reducing VOC emissions from timber materials. The emissions from pine wood were investigated on six sapwood or heartwood samples from different trunk sections of freshly felled pine. The project’s results show that, due to their high aldehyde and terpene emissions, some types of commercially available OSB and plywood did not meet the AgBB scheme’s requirements. By using antioxidants in OSB production it was possible to reduce aldehyde emissions (especially hexanal and unsaturated higher aldehydes) to one third. However, this caused an increase in terpene emissions. KW - Bauprodukte KW - AgBB-Schema KW - Emissionsprüfkammern KW - Geruchsmessungen KW - VOC KW - VVOC KW - SVOC KW - Thermodesorption KW - GC/MS KW - Holzwerkstoffe KW - OSB KW - Leimholz KW - Construction products KW - AgBB Scheme KW - Emission test chamber KW - Odour measurement KW - Thermal desorption KW - Wood Products KW - Oriented Strand Board KW - Plywood Board PY - 2012 UR - http://www.umweltbundesamt.de/publikationen/emissionsverhalten-von-holz-holzwerkstoffen IS - 07 SP - 1 EP - 224 PB - Umweltbundesamt CY - Dessau-Roßlau AN - OPUS4-25843 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Wiegner, Katharina A1 - Horn, Wolfgang T1 - Bewertungsschema von Baumaterialien für den Kulturgutbereich (Museumsvitrinen) BEMMA T2 - 19. WaBoLu-Innenraumtage CY - Berlin, Germany DA - 2012-05-14 PY - 2012 AN - OPUS4-25906 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Altmann, Korinna A1 - Schulze, Rolf-Dieter A1 - Hidde, Gundula A1 - Friedrich, Jörg-Florian T1 - Electrospray ionization for deposition of ultra-thin polymer layers – principle, electrophoretic effect and applications N2 - Nebulizing of polymer solutions, in a high-voltage field under atmospheric conditions by electrospray ionization (ESI), is a comfortable way to deposit ultra-thin layers of polar or ionic polymers onto any conductive substrate materials. The substrate is grounded and the polymer solution is sprayed through a powered capillary. The formed charged droplets shrink by solvent evaporation during their way to the grounded substrate, the charges close ranks and the droplets collapse consecutively by charge repulsion, thus forming finally charged single macromolecules. After their discharging at the grounded substrate, an ultrathin ‘quasi-monomolecular’ polymer layer is formed. It could be shown by imaging of scratches through the polymer layer by atomic force microscopy that the deposited polymer layers are dense at a thickness of about 10 nm. Carbon fibre bundles were coated with poly (allylamine) (PAAm) or poly(acrylic acid) (PAA) as potential adhesion-promoting layers in fibre–polymer composites. The polymer deposition is self-inhibiting after formation of a continuous coverage of about 200 nm for PAAm and 30 nm for PAA as result of surface charging. Continuous deposition onto such isolating layers or polymers without charging can be achieved by using current of alternating polarity. The film formation is self-healing because of the electrophoretic effect, i.e. the ion discharging occurs preferentially at noncoated areas. This electrophoretic effect of ESI was demonstrated by completely enwrapping all the carbon fibres of the roving within a distance of about 100 μm far from its outside and also at the backside of the fibre bundle with about 80% of the topside coverage, as measured by X-ray photoelectron spectroscopy and visualized using scanning electron microscopy. KW - Complete enwrapping of fibres KW - Ultra-thin polymer layers KW - Self-healing KW - Electrospray deposition KW - Carbon fibres KW - Electrophoretic effect PY - 2012 U6 - https://doi.org/10.1080/01694243.2012.727170 SN - 0169-4243 VL - 27 IS - 9 SP - 988 EP - 1005 PB - Taylor & Francis CY - London AN - OPUS4-42631 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Daliltz, F. A1 - Cudaj, M. A1 - Maiwald, Michael A1 - Guthausen, G. T1 - Process and reaction monitoring by low-field NMR spectroscopy KW - Process analysis KW - Low-field NMR spectroscopy KW - Flow-NMR KW - Data analysis PY - 2012 U6 - https://doi.org/10.1016/j.pnmrs.2011.11.003 SN - 0079-6565 SN - 1873-3301 VL - 60 SP - 52 EP - 70 PB - Elsevier CY - Amsterdam AN - OPUS4-25439 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Zientek, Nicolai A1 - Neugebauer, Michael A1 - Maiwald, Michael A1 - Dalitz, F. A1 - Guthausen, G. T1 - On-line NMR Spectroscopy- RF attenuation of polymer tubes for NMR cells T2 - 6. Interdisziplinäres Doktorandenseminar (GDCh&DECHEMA) CY - Berlin, Germany DA - 2012-02-26 PY - 2012 AN - OPUS4-25562 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Neugebauer, Michael A1 - Zientek, Nicolai A1 - Maiwald, Michael T1 - NMR-Alles im Fluss T2 - GDCh-NMR-Diskussionstagung: Praktische Probleme der Kernresonanzspektroskopie CY - Erlangen, Germany DA - 2012-01-16 PY - 2012 AN - OPUS4-25560 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Zientek, Nicolai A1 - Neugebauer, Michael A1 - Dalitz, F. A1 - Guthausen, G. A1 - Maiwald, Michael T1 - On-line NMR Spektroskopie - RF-Dämpfung von Polymerschläuchen für NMR-Durchflussmesszellen T2 - 6. Interdisziplinäres Doktorandenseminar CY - Berlin, Germany DA - 2012-02-26 KW - Medium-Resolution-NMR-Spektroskopie KW - RF-Dämpfung KW - NMR-Durchflussmesszelle PY - 2012 SN - 978-3-9814634-5-3 SP - 41 AN - OPUS4-28265 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Zientek, Nicolai A1 - Batzdorf, Lisa A1 - Kraume, M. A1 - Emmerling, Franziska A1 - Maiwald, Michael T1 - Online-NMR-Methoden zur Analyse des Auflösungsverhaltens von pharmazeutischen Cokristallen T2 - 8. Kolloquium Arbeitskreis Prozessanalytik CY - Berlin, Germany DA - 2012-12-03 KW - Quantitative Online-NMR-Spektroskopie KW - Cokristalle KW - Auflösungskinetik PY - 2012 SN - 978-3-9815360-1-0 N1 - Geburtsname von Batzdorf, Lisa: Tröbs, L. - Birth name of Batzdorf, Lisa: Tröbs, L. IS - P12 SP - 40 AN - OPUS4-28267 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Zientek, Nicolai A1 - Maiwald, Michael A1 - Dalitz, F. A1 - Guthausen, G. A1 - Nirschl, H. T1 - Applikationen von Medium-Resolution-NMR-Spektroskopie in der Prozessanalytik: Potential und Herausforderungen T2 - ProcessNet-Jahrestagung CY - Karlsruhe, Germany DA - 2012-09-10 PY - 2012 AN - OPUS4-26710 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Zientek, Nicolai A1 - Dalitz, F. A1 - Nirschl, H. A1 - Guthausen, G. A1 - Maiwald, Michael A1 - Kraume, M. A1 - Zientek, Nicolai T1 - Applikationen der Medium-Resolution-NMR-Spektroskopie in der Prozessanayik T2 - ProcessNET Jahrestagung 2012 CY - Karlsruhe, Germany DA - 2012-09-10 PY - 2012 AN - OPUS4-28097 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Neugebauer, Michael A1 - Zientek, Nicolai A1 - Maiwald, Michael T1 - On the Fly Quantification of Fluids - Quantitative Online NMR Spectroscopy of Technical Mixtures T2 - 3rd International Workshop for Young Scientists CY - Khlong Luang, Thailand DA - 2012-08-27 PY - 2012 AN - OPUS4-26712 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Neugebauer, Michael A1 - Zientek, Nicolai A1 - Maiwald, Michael T1 - On the Fly Quantification of Fluids - Quantitative Online NMR Spectroscopy of Technical Mixtures T2 - 3rd International Workshop for Young Scientists CY - Khlong Luang, Thailand DA - 2012-08-27 PY - 2012 AN - OPUS4-26711 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Maiwald, Michael T1 - Prozessanalytik: Konzepte und Strategien - Prozessanalytik in Flüssigkeiten T2 - GDCh-PAT-Weiterbildungsmodul "Konzepte und Strategien" 2012 CY - Frankfurt am Main, Germany DA - 2012-10-23 PY - 2012 AN - OPUS4-27028 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Maiwald, Michael T1 - Prozessanalytik 2012 Stand&Tendenzen T2 - Teilchengrößenanalytik in Prozessen: Messtechniken für Emulsionen und Suspensionen CY - Potsdam, Germany DA - 2012-10-10 PY - 2012 AN - OPUS4-27029 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Guthausen, G. A1 - Dalitz, F. A1 - Zientek, Nicolai A1 - Nirschl, H. A1 - Kraume, M. A1 - Maiwald, Michael T1 - Applikationen der Medium-Resolution-NMR-Spektroskopie in der Prozessanalytik: Potenzial und Herausforderungen KW - Medium-Resolution-NMR-Spektroskopie KW - Prozessanalytik PY - 2012 SN - 0009-286X SN - 1522-2640 VL - 84 IS - 8 SP - 1364 PB - Wiley-VCH Verl. CY - Weinheim AN - OPUS4-28269 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Zientek, Nicolai A1 - Batzdorf, Lisa A1 - Kraume, M. A1 - Emmerling, Franziska A1 - Maiwald, Michael A1 - Panne, Ulrich T1 - Online-NMR-Methoden zur Analyse des Auflösungsverhaltens von pharmazeutischen Cokristallen T2 - 8. Kolloquium Prozessanalytik Berlin 2012 CY - Berlin, Germany DA - 2012-12-03 PY - 2012 N1 - Geburtsname von Batzdorf, Lisa: Tröbs, L. - Birth name of Batzdorf, Lisa: Tröbs, L. AN - OPUS4-29309 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Hoffmann, Martin A1 - Gregor, Christian A1 - Schulz, Michael A1 - Szczepaniak, Mariusz A1 - Mair, Georg T1 - Entwickelt und validiert - Probengeometrie zur Untersuchung von gewickelten Faserverbundproben N2 - Durch die beschriebene, auf eine Umfangsbelastung ausgelegte Probengeometrie werden Fertigung und Einsatz von Druckbehältern nachempfunden. Dafür wurden bereits bestehende Probenformen überarbeitet, um im Probenkörper eine unidirektionale Zugbelastung zu erzeugen. Da die endgültigen Eigenschaften von faserverstärktem Kunststoff erst in der Fertigung entstehen, sind gleiche Fertigungsbedingungen von Proben und Bauteilen wichtig. Die hier vorgestellte Probe verspricht dadurch eine gute Eignung für den Einsatz bei Untersuchungen zum Zeitstandsverhalten. KW - Faserverstärkte Kunststoffe (FVK) KW - Druckbehälter KW - Zeitstand KW - Zugprobe PY - 2012 SN - 1865-4819 VL - 5 SP - 44 EP - 49 PB - Springer Vieweg, Springer Fachmedien Wiesbaden GmbH CY - Wiesbaden AN - OPUS4-26893 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Mair, Georg A1 - Hoffmann, Martin A1 - Saul, Herbert A1 - Spode, Manfred T1 - Betrachtung von Grenzwerten der Restfestigkeit von Composite-Druckgefäßen - Teil 2: Extrapolation der Lastwechsel-Degradation N2 - Die aktuelle Praxis, auch die wiederkehrende Prüfung von Druckgefäßen aus Verbundwerkstoffen primär auf die hydraulische Innendruckprüfung abzustellen, ist sowohl im Hinblick auf die Schädigung der Prüfmuster als auch ihrer Aussagekraft kritisch zu bewerten. Daher bringt die BAM Bundesanstalt für Materialforschung und -prüfung zur Absicherung bei der Zulassung von Prüffristen für Composite-Druckgefäße, die älter als fünf Jahre sind, einen neuen Ansatz zur Anwendung. Er ermöglicht eine Zustandsbeschreibung der Population eines Baumusters auf der Basis wiederholt betriebsbegleitend zerstörender Prüfungen. Ein wesentlicher Aspekt dieses Ansatzes ist die Prognose der sicheren Restlebensdauer. Hierbei stellt der Effekt des übermäßigen Verlusts an hydraulischer Lastwechselfestigkeit im Sinne einer Degradation der Festigkeit einen kritischen Punkt in der Prognose der Sicherheit bis zum Lebensdauerende dar. KW - Faserverbundwerkstoffe KW - Druckgefäße KW - Restfestigkeit KW - Degradation KW - Stichprobenprüfung KW - Hydraulische Lastwechselprüfung KW - Lebensdauer KW - Überlebenswahrscheinlichkeit KW - Lastwechselempfindlichkeit PY - 2012 SN - 2191-0073 VL - 2 IS - 10 SP - 38 EP - 43 PB - Springer-VDI-Verl. CY - Düsseldorf AN - OPUS4-26672 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Mair, Georg T1 - Ergebnisse und Folgerungen zum BMVBS-Vh "Ermittlung von Versagensgrenzen und Langzeitverhalten von Druckgefäßen aus Verbundwerkstoffen" T2 - 21. BAM-DIN-IGV-Jahresgespräch, BAM CY - Berlin, Germany DA - 2012-02-09 PY - 2012 AN - OPUS4-26440 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Mair, Georg T1 - Safety Assessment by Probabilistic: Strength Degradation of Composite Pressure Receptacles (CPR) T2 - Besuch einer Delegation von KHK (Japan) und NOW (Berlin), BAM CY - Berlin, Germany DA - 2012-08-29 PY - 2012 AN - OPUS4-26404 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Mair, Georg T1 - Concept for Determination of Periods for Periodic Inspection and Testing of Composite Pressure Receptacles (CPR) T2 - EIGA WP2 Meeting No. 151 CY - Munich, Germany DA - 2012-05-15 PY - 2012 AN - OPUS4-26895 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Mair, Georg T1 - Phenomenon of Degradation of Composite Pressure Receptacles (CPR) T2 - FKT Sonderausschuss Gasfahrzeuge des BMVBS, Stammsitz der Fa. FORD CY - Cologne, Germany DA - 2012-10-11 PY - 2012 AN - OPUS4-26693 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Mair, Georg A1 - Duffner, Eric A1 - Schoppa, André A1 - Szczepaniak, Mariusz T1 - Betrachtung von Grenzwerten der Restfestigkeit von Composite-Druckgefäßen - Teil 3: Phänomene der Berstprüfung N2 - Die aktuelle Praxis, auch die wiederkehrende Prüfung von Druckgefäßen aus Verbundwerkstoffen primär auf die hydraulische Innendruckprüfung abzustellen, ist sowohl bezüglich der Schädigung der Prüfmuster als auch ihrer Aussagekraft kritisch zu bewerten. Entsprechend kommt durch die BAM Bundesanstalt für Materialforschung und -prüfung zur Absicherung bei der Zulassung von Prüffristen für Composite-Druckgefäßen von mehr als fünf Jahren ein neuer Ansatz zur Anwendung. Er ermöglicht eine Zustandsabschätzung der Population eines Baumusters auf der Basis wiederholt betriebsbegleitend zerstörender Prüfungen. Ein wesentlicher Aspekt dieses Ansatzes ist die Prognose der sicheren Restlebensdauer. In Fällen, in denen diese nicht wie in den Teilen 1 und 2 beschrieben mittels hydraulischer Lastwechselprüfungen abgeschätzt werden kann, bleiben als Ersatz die Zeitstands- oder die Berstprüfung. Als Kombination aus diesen beiden Prüfungen schlägt die BAM die 'langsame Berstprüfung' vor. Zu diesem Prüfkonzept werden zahlreiche Ergebnisse dargestellt. Hierzu werden sowohl die Parameter der Prüfung wie auch die Art und Intensität der Vorschädigung künstlich gealterter Prüfmuster statistisch ausgewertet. Dies führt zum einen zu einer Bewertung der verschiedenen Belastungsarten aber auch zu der eindeutigen Empfehlung, die heute üblicherweise schnellen Berstprüfungen zum Nachweis der Festigkeit von Composite-Druckgefäßen am besten ganz zu ersetzen. KW - Faserverbundwerkstoffe KW - Druckgefäße KW - Restfestigkeit KW - Degradation KW - Stichprobenprüfung KW - Hydraulische Berstprüfung KW - Lebensdauer KW - Druckanstiegsraten KW - Überlebenswahrscheinlichkeit KW - Lastwechselempfindlichkeit PY - 2012 SN - 2191-0073 VL - 2 IS - 11/12 SP - 43 EP - 50 PB - Springer-VDI-Verl. CY - Düsseldorf AN - OPUS4-27291 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Mair, Georg T1 - Determination of Retest Periods based on Degradation Properies of Composite Pressure Receptacles (CPR) T2 - European Cylinder Makers Association, ECMA Technical Group Meeting No. 53 CY - Brussels, Belgium DA - 2012-11-20 PY - 2012 AN - OPUS4-27086 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF ED - Maiwald, Michael T1 - 6. Interdisziplinäres Doktorandenseminar N2 - Das 6. Interdisziplinäre Doktorandenseminar ist 2012 von Attendorn nach Berlin umgezogen. Es bot wieder reichlich Gelegenheit zum Kennenlernen, Wiedersehen und fachlichen Gedankenaustausch. Insgesamt kamen über 30 Teilnehmerinnen und Teilnehmer von Hochschulen, Forschungseinrichtungen und der Industrie zusammen. T2 - 6. Interdisziplinäres Doktorandenseminar CY - Berlin, Germany DA - 26.02.2012 KW - Doktorandentagung KW - Sensoren KW - Elektrochemie KW - Chemometrie KW - Prozessanalytik PY - 2012 SN - 978-3-9814634-5-3 SP - 1 EP - 42 PB - Bundesanstalt für Materialforschung und -prüfung (BAM) CY - Berlin AN - OPUS4-37394 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF ED - Maiwald, Michael T1 - 8. Kolloquium Prozessanalytik Berlin N2 - Themenschwerpunkt "Spektroskopie und Sensorik in der Prozessanalytik" Am 03. und 04. Dezember fand das 8. Kolloquium des Arbeitskreises Prozessanalytik statt, diesmal in Berlin. Wie bekannt ist ein wichtiger Aspekt dieser Konferenz, Grenzen zwischen Fachgebieten sowie technischen Anwendungsbereichen zu überschreiten und einen interdisziplinären Austausch zu ermöglichen. Diesem Gedanken wurde bereits mit dem diesjährigen Themenschwerpunkt „Spektroskopie und Sensorik in der Prozessanalytik“ deutlich Rechnung getragen. Wie wichtig diese Themen für den Produktionsstandort Deutschland sind, zeigt die rege Beteiligung der Industrie. Neben insgesamt sieben industriellen Sponsoren und Ausstellern kam weit über die Hälfte der Teilnehmer aus der Industrie. Neben den Vorträgen bot die Veranstaltung noch zahlreiche Posterbeiträge, die ebenfalls neue Einblicke in prozessanalytische Themen und natürlich auch Anlässe für anregende Fachdiskussionen boten. Die Veranstalter hatten darauf geachtet, dass der fachliche Austausch in den Pausen, insbesondere aber auch während der Postersessions nicht zu kurz kam. T2 - 8. Kolloquium Arbeitskreis Prozessanalytik CY - Berlin, Germany DA - 03.12.2012 KW - Kolloquium Prozessanalytik KW - Prozessanalytik KW - Arbeitskreis Prozessanalytik PY - 2012 SN - 978-3-9815360-1-0 SP - 1 EP - 48 PB - Bundesanstalt für Materialforschung und -prüfung (BAM) CY - Berlin AN - OPUS4-37395 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Maiwald, Michael T1 - "Es ist Arznei, nicht Gift, was ich dir reiche." N2 - Im Rahmen der Herstellung und Überwachung von Arzneimitteln käme wohl niemand – außer dem alten Paracelsus – auf die Idee, diese Aussage in irgendeiner Form anzuzweifeln. Zeit, der Pharmazeutischen Industrie endlich einmal ein Kompliment zu machen. Danke zu sagen, für die technisch, wissenschaftliche Kultur, die fast für jede Krankheit etwas parat hat und uns, unserer Familie, unseren Freunden ein unbeschwertes und langes Leben ermöglicht. Leute, verkauft Euch doch nicht immer so schlecht! KW - Editorial KW - Nathan der Weise KW - Lessing KW - Quality by design KW - Real time release KW - PAT/QbD KW - Prozessanalytik PY - 2012 SN - 2191-8341 VL - 2 IS - 3 SP - Editorial, 1 EP - 1 PB - ECV, Editio-Cantor-Verl. für Medizin und Naturwiss. CY - Aulendorf, Germany AN - OPUS4-37401 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - THES A1 - Maiwald, Michael T1 - Hochauflösende Online-NMR-Spektroskopie für das Reaktions- und Prozeßmonitoring - Beispiele zur Anwendung in der Verfahrenstechnik N2 - Die moderne Reaktions- und Trenntechnik in der chemischen Industrie ist eine Hochtechnologie. Die dort eingesetzten Verfahren zur Reaktionsführung und Auftrennung der Produkte sind weitestgehend optimiert. Zu diesem Stand hat die instrumentelle Analytik – speziell die Prozeßanalytik – wesentlich beigetragen. Das Reaktions- und Prozeßmonitoring ist eine wichtige Hilfe zum Verständnis der komplexen Zusammenhänge. In der vorliegenden Arbeit wird der Einsatz der NMR-Spektroskopie in verfahrenstechnischen Anwendungen wie dem Reaktions- und Prozeß-Monitoring diskutiert und alle dazu notwendigen Grundlagen erläutert. Solche Anwendungen erfordern häufig Techniken, mit denen hochaufgelöste Spektren zerstörungsfrei aufgenommen werden können, oft bei erhöhtem Druck und erhöhter Temperatur. Neben der quantitativen Bestimmung der Zusammensetzung komplexer reagierender Mischungen besteht gleichzeitig die Möglichkeit zur Identifikation von Nebenprodukten. Dieses gelingt insbesondere durch die Nutzung der NMR-Spektroskopie als Online-Methode, die in der Literatur bislang nur in wenigen Einzelfällen beschrieben und trotz ihrer enormen Möglichkeiten noch nicht konsequent angewendet wird. Durch die fortschreitende Entwicklung auf dem Gebiet der NMR-Spektroskopie kann eine Online-Anbindung heute durchgehend mit Hilfe kommerziell erhältlicher Komponenten erfolgen – wie die vorliegende Arbeit zeigt. Fallende Kosten in der Beschaffung und dem Betrieb leistungsfähiger NMR-Spektrometer machen die Methode auch im verfahrenstechnischen Umfeld mittlerweile sehr attraktiv. Die Attraktivität der Methode gewinnt neuerdings insbesondere durch die erweiterten Einsatzmöglichkeiten kompakterer NMR-Magneten mit geringen Streufeldern. Obwohl sich in den Ingenieurwissenschaften damit vielfältige Einsatzmöglichkeiten ergeben, wird die NMR-Spektroskopie dort bislang noch leider kaum genutzt. Besondere Herausforderungen stellen sich u. a. dadurch, daß sich weder deuterierten Komponenten einsetzen lassen noch die Probe in einer geeigneten Weise in einer Probenvorbereitung verändert werden kann. Damit kommen hochkonzentrierte Mischungen zur direkten Untersuchung. Dieses hat signifikante Rückwirkungen auf die einzusetzende NMR-Methodik, die im Rahmen der Arbeit umfassend untersucht wurde. In der Regel lassen sich die Probleme bei entsprechender experimenteller Vorgehensweise umgehen. Zur Garantie quantitativer Meßwerte wurden alle eingesetzten Meß- und Auswertungsstrategien ausführlich untersucht und teilweise erweitert. Um quantitativ aussagekräftige Online-NMR-Spektren mit Hilfe der 1H- und 13C-NMRSpektroskopie von technischen Mischungen zu erhalten, wurden folgende Aufgaben gelöst: Entwicklung und Validierung von Vorgehensweisen zur Messung hochkonzentrierter, technischer Mischungen ohne Probenvorbereitung und ohne Zusatz deuterierter Komponenten; Konstruktion geeigneter Apparaturen zur Untersuchung von Reaktionsgleichgewichten und -kinetiken für verschiedene Druck- und Temperaturbereiche, die sich optimal für die Online-NMR-Spektroskopie einsetzen lassen; Ankopplung der NMR-Spektrometers an die unterschiedlichen Apparate mit Hilfe von NMR-Durchflußzellen; Schaffung einer möglichst noninvasiven Untersuchungsmethode hinsichtlich aller Probenparameter (z. B. Druck, Temperatur); Schaffung und Erprobung von Meß- und Auswertungsstrategien im Hinblick auf quantitative Parameter, Erweiterung des zugänglichen Druck- und Temperaturbereiches der Messungen sowie Verkürzung des Zeitfensters für Messungen durch geeignete Peripherie und konstruktiven Veränderungen am NMR-Probenkopf. Als Beispiel werden Messungen an binären und ternären flüssigen Mischungen aus Formaldehyd, Wasser und Methanol diskutiert. In diesen Systemen ist Formaldehyd fast ausschließlich in Poly(oxymethylen)Glykolen und -hemiformalen chemisch gebunden. Die chemischen Reaktionen in formaldehydhaltigen Mischungen bestimmen deren thermodynamisches Verhalten sowie ihre Trennung mit thermischen Verfahren. Die NMR-Spektroskopie ist das zentrale analytische Verfahren, mit dem sich diese Vorgänge aufklären und quantifizieren lassen. Für die hier vorgestellten Untersuchungen zum Prozeßmonitoring kamen u. a. eine Online-NMRKopplung mit einem Dünnschichtverdampfer sowie mit einem Rührreaktor zum Einsatz. In weiteren Anwendungsbeispielen zum Thema Formaldehyd wird aufgezeigt, daß sich die Online-NMR-Spektroskopie auch zum Studium komplexer Reaktionsnetzwerke, zur Messung von Gaslöslichkeiten oder zur Quantifizierung kleinster Produktmengen unter schwierigen, technischen Reaktionsbedingungen eignet. Ferner werden Arbeiten zur Aufklärung und Quantifizierung der chemischen Prozesse bei der Absorption von Kohlendioxid in wässrigen Aminlösungen bei Drücken bis zu 30 bar und reaktionskinetische Untersuchungen von Veresterungen vorgestellt, bei denen auch ein Vergleich mit einer GC-Analytik durchgeführt wurde. Ebenso wird gezeigt, daß sich die Online-NMR-Spektroskopie zur Beobachtung von Reaktionen in Ionischen Flüssigkeiten eignet. Ein Teil der Arbeit beschäftigt sich mit der Untersuchung fluider Mischungen bei hohen Drücken. Beispielhaft werden Arbeiten zu H-Brückengleichgewichten von Methanol in überkritischem Kohlendioxid vorgestellt, die eine wertvolle, experimentelle Datenbasis zur Überprüfung molekulardynamischer Modelle in der molekularen Simulation liefern. Für die meisten Anwendungsbeispiele werden neue Reaktoren und Meßapparaturen vorgestellt, die sich besonders für den Einsatz in der Durchfluß-NMR-Spektroskopie eignen. Schließlich wird kurz auf die Anwendung der NMR-Spektroskopie zur Bestimmung physikalisch chemischer Größen eingegangen, wie z. B. zur Bestimmung von Diffusuionskoeffizienten in technischen Mischungen. Erstmals wird der Einsatz der Methode in der Taylor-Dispersionstechnik beschrieben und experimentell belegt. KW - Kernresonanzspektroskopie KW - Online-NMR-Spektroskopie KW - Prozessverfolgung KW - Reaktionsmonitoring KW - Kohlenstoff-13-NMR-Spektroskopie KW - NMR-Spektroskopie KW - Protonen-NMR-Spektroskopie KW - Prozessanalytik KW - Verfahrensentwicklung PY - 2012 UR - https://kluedo.ub.uni-kl.de/frontdoor/index/index/docId/3213 SN - 978-3-95404-136-7 SP - 1 EP - 189 PB - Cuvillier CY - Göttingen AN - OPUS4-26310 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Dalitz, F. A1 - Maiwald, Michael A1 - Guthausen, G. T1 - Considerations on the design of flow cells in by-pass systems for process analytical applications and its influence on the flow profile using NMR and CFD N2 - The design of sample flow cells, commonly used in on-line analytics and especially for medium resolution NMR spectroscopy (MR-NMR) in low magnetic fields, was experimentally and theoretically investigated by 1H NMR and numerical simulations. The flow pattern was characterised to gain information about the residence time distribution and mixing effects. Both 1H NMR imaging and spectroscopy were used to determine the characteristics of flow cells and their significance for on-line measurements such as reaction monitoring or hyphenated separation spectroscopy. The volume flow rates investigated were in the range from 0.1 to 10 ml/min, typically applied in the above mentioned applications. The special characteristics of flow cells for MR-NMR were revealed by various NMR experiments and compared with CFD simulations and to flow cells commonly used in high-field NMR. The influence of the design of the inlet and outlet on the flow pattern was investigated as well as the effect of the length of the cell. For practical use, a numerical estimation of the inflow length was given. In addition, it was shown how experiments on the polarisation build-up revealed insight into the flow characteristics in MR-NMR. KW - Chemical processes KW - Imaging KW - Instrumentation KW - Process control KW - NMR KW - CFD PY - 2012 U6 - https://doi.org/10.1016/j.ces.2012.03.042 SN - 0009-2509 VL - 75 SP - 318 EP - 326 PB - Elsevier CY - Amsterdam AN - OPUS4-25792 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Dalitz, F. A1 - Zientek, Nicolai A1 - Maiwald, Michael A1 - Guthausen, G. T1 - Einfluss des Disigns von Flusszellen in Bypass-Systemen für online-Prozessanalytik-Untersuchnung mittels MRI und numerischer Simulation T2 - 6. Interdisziplinäres Doktorandenseminar CY - Berlin, Germany DA - 2012-02-26 PY - 2012 AN - OPUS4-25567 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Bremser, Wolfram A1 - Paul, Andrea A1 - Neugebauer, Michael A1 - Maiwald, Michael A1 - Brudel, M. T1 - Immer im Bild mittels Prozess-Spektroskopie - Spektroskopische Methoden für die Prozessanalytik PY - 2012 SN - 0016-3538 VL - 56 IS - 6 SP - 436 EP - 439 PB - GIT-Verlag CY - Darmstadt AN - OPUS4-26243 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Maiwald, Michael T1 - Prozess-Spektroskopie Einführung in die spektroskopischen methoden der Prozessanalytik T2 - Frühjahrsschule "Industrielle Analytik" Universität Ulm CY - Ulm, Germany DA - 2012-03-19 PY - 2012 AN - OPUS4-26708 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Maiwald, Michael T1 - Neuste Entwicklungen und Einsatzgebiete der Online-NMR-Spektroskopie T2 - 2. VDI-Fachkonferenz Prozessanalytische Messtechnik in der Chemieindustrie CY - Frankfurt am Main, Germany DA - 2012-02-29 PY - 2012 AN - OPUS4-25566 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Maiwald, Michael T1 - Prozessanalytik 2012 Stand&Tendenzen T2 - Frühjahrsschule "Industrielle Analytik" Universität Ulm CY - Ulm, Germany DA - 2012-03-19 PY - 2012 AN - OPUS4-26709 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Maiwald, Michael A1 - Schewitz, J. T1 - Prozessanalytik im Umfeld der Pharmazeutischen Entwicklung und Produktion PY - 2012 SN - 2191-8341 VL - 2 IS - 3 SP - 166 EP - 172 PB - ECV, Editio-Cantor-Verl. für Medizin und Naturwiss. CY - Aulendorf AN - OPUS4-26052 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Mair, Georg T1 - Ein bisschen Marküberwachung (Entwicklung der Marktüberwachung zu den oDG in D) T2 - 8. Fachgespräch oDruckgeräte, BAM CY - Berlin, Germany DA - 2012-06-18 PY - 2012 AN - OPUS4-26266 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Mair, Georg A1 - Pöschko, Pascal A1 - Hoffmann, Martin A1 - Schoppa, André A1 - Spode, Manfred T1 - Betrachtung von Grenzwerten der Restfestigkeit von Composite-Druckgefäßen - Teil 1: Kriterien der hydraulischen Lastwechselprüfung N2 - Die aktuelle Praxis, auch die wiederkehrende Prüfung von Druckgefäßen aus Verbundwerkstoffen primär auf die hydraulische Innendruckprüfung abzustellen, ist sowohl bezüglich der Schädigung der Prüfmuster als auch ihrer Aussagekraft als kritisch zu bewerten. Die Bundesanstalt für Materialforschung und -prüfung BAM bringt daher bei der Zulassung von Prüffristen für Composite-Druckgefäße von mehr als fünf Jahren zur Absicherung einen neuen Ansatz zur Anwendung. Er ermöglicht eine Zustandsbeschreibung der Population eines Baumusters auf der Basis wiederholt betriebsbegleitend zerstörender Prüfungen. Nachfolgend wird erläutert, wie die statistische Auswertung von Stichproben und deren perspektivische Extrapolation erfolgen und wie Zuverlässigkeitsgrenzwerte von der Größe von Druckgefäßen abhängig gemacht werden können, sowie welchen Einfluss der reale Gasdruck auf die Sicherheitsbewertung im Rahmen des Ansatzes der BAM hat. Insbesondere wird in das zentrale Arbeitsdiagramm des Ansatzes eingeführt und erläutert, wie dieses verwendet werden kann. Hierzu wird auch ausgeführt, wie die Füllzyklenzahl und die Lastwechselfestigkeit über die neu eingeführte Größe der spezifischen Füllempfindlichkeit zusammenhängen. KW - Restfestigkeiten KW - Degradation KW - Betriebssicherheit KW - Hydraulische Lastwechselprüfung KW - Streuung KW - Ausfallwahrscheinlichkeit KW - Lastwechselempfindlichkeit PY - 2012 SN - 2191-0073 VL - 2 IS - 7/8 SP - 30 EP - 38 PB - Springer-VDI-Verl. CY - Düsseldorf AN - OPUS4-26199 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Eiben, Mario A1 - Schmidt, Anita A1 - Menrad, Andreas A1 - Jahnke, Wolfgang A1 - Goedecke, Thomas T1 - Validation of an Alternative method for Testing the Chemical Compatibility of Liquids with Polyethylene Packagings for Dangerous Goods T2 - 18th IAPRI WORD PACKAGING CONFERENCE CY - San Luis Obispo, CA, USA DA - 2012-06-18 PY - 2012 AN - OPUS4-25991 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Pöschko, Pascal A1 - Mair, Georg T1 - Festlegung von Prüffristen für Druckgefäße aus Verbundwerkstoffen in Deutschland T2 - 8. Fachgespräch ortsbewegliche Druckgeräte, BAM CY - Berlin, Germany DA - 2012-06-18 PY - 2012 AN - OPUS4-26257 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Mair, Georg T1 - Gasflaschen aus Verbundwerkstoffen - von der Materialwahl bis zur Sicherheitsanalyse T2 - World Hydrogen Energy Conference 2012 CY - Toronto, Canada DA - 2012-06-03 PY - 2012 AN - OPUS4-30607 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Kasparek, Eva Maria A1 - Völzke, Holger A1 - Scheidemann, Robert A1 - Zencker, Uwe T1 - Numerical and experimental investigations of polyurethane foam for use as cask impact limiter in accidental drop scenarios T2 - WM2012 - Waste management conference CY - Phoenix, AZ, USA DA - 2012-02-26 KW - Plasticity KW - Finite elements KW - Material models KW - Rate dependency KW - Temperature dependency KW - Compression tests KW - Drop tests KW - Parameter identification PY - 2012 SN - 978-0-9836186-1-4 N1 - Serientitel: WM Symposia – Series title: WM Symposia IS - Paper 12099 SP - 1 EP - 9 AN - OPUS4-26270 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Kasparek, Eva Maria A1 - Völzke, Holger A1 - Scheidemann, Robert A1 - Zencker, Uwe A1 - Wolff, Dietmar T1 - Experimental and numerical studies of shock absorbing materials for containers for radioactive waste PY - 2012 SN - 1431-5254 VL - 57 IS - 6 SP - 397 EP - 401 PB - Inforum CY - Berlin AN - OPUS4-26261 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Protz, Christian A1 - Völzke, Holger A1 - Ellouz, Manel A1 - Kasparek, Eva Maria A1 - Zencker, Uwe A1 - Grünewald, Heike A1 - Gründer, Klaus-Peter T1 - ConDrop - Development of Numerical Simulation Approaches for Drop Test Analyses of Steel Sheet Containers T2 - INMM 53rd Annual Meeting CY - Orlando, FL, USA DA - 2012-07-15 PY - 2012 AN - OPUS4-26138 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Völzke, Holger A1 - Noack, Volker A1 - Nieslony, Gregor A1 - Hörning, Tony A1 - Ellouz, Manel A1 - Kovacs, Oliver A1 - Hagenow, Peter T1 - Container Approval for the Disposal of Radioactive Waste with Negligible Heat Generation in the German Konrad Repository T2 - Waste Management Conference 2012 CY - Phoenix, AZ, USA DA - 2012-02-26 PY - 2012 AN - OPUS4-25551 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Nies, Daniel A1 - Rehmer, Birgit A1 - Skrotzki, Birgit A1 - Vaßen, R. T1 - Damage characterization of thermal barrier coatings by acoustic emission and thermography N2 - Thermal barrier coatings allow increasing the operating temperature and efficiency of land-, sea-, or air-based turbines. As failure of the coating may result in serious damage of the turbine, reliable estimation of its lifetime is essential. To assess the lifetime, cyclic tests are conceived to combine thermal loading by heating the surface of the coating with laser irradiation and nondestructive methods for damage determination. Using laser irradiation allows a high reproducibility of the thermal load. The temperature of the sample surface during thermal loading is determined by an infrared-camera which also enables the possibility to detect damage in the coating via thermography. Additionally, four acoustic sensors, attached to the experimental setup, are used to detect damage in the sample and determine the source of acoustic events. Results of acoustic emission correlate well with thermographic images that visualize the formation and evolution of damage through delaminations in the samples. PY - 2012 U6 - https://doi.org/10.1002/adem.201200107 SN - 1438-1656 VL - 14 IS - 9 SP - 790 EP - 794 PB - Wiley-VCH Verl. CY - Weinheim AN - OPUS4-26536 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Rajendran, R. A1 - Petley, V. A1 - Rehmer, Birgit T1 - Dynamic elastic properties of aero-engine metallic isotropic materials N2 - Study of elastic properties of aero-engine metallic materials is of paramount importance because it forms one of the foundations of engineering design of components. Nine isotropic aero-engine metallic materials were studied for their elastic properties for a temperature range varying from ambient to operating limit. Test was carried out in vacuum to prevent oxidation of specimens. Dimensional corrections of the specimen due to thermal expansion were taken into account. Dynamic elastic modulus was evaluated as the average of the moduli that was obtained through first flat and edge flexural mode frequencies. Dynamic shear modulus was established through the first torsional mode of frequency. KW - Dynamic elastic modulus KW - Dynamic shear modulus PY - 2012 UR - http://pil.sagepub.com/content/early/2012/07/17/1464420712454071.full.pdf+html U6 - https://doi.org/10.1177/1464420712454071 SN - 2041-3076 SN - 1464-4207 SP - 1 EP - 7 PB - Sage Publ. CY - London AN - OPUS4-26237 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Fedelich, Bernard A1 - Epishin, A. A1 - Link, T. A1 - Klingelhöffer, Hellmuth A1 - Künecke, Georgia A1 - Portella, Pedro Dolabella ED - Huron, E.S. ED - Reed, R.C. ED - Hardy, M.C. ED - Mills, M.J. ED - Montero, R.E. ED - Portella, Pedro Dolabella ED - Telesman, J. T1 - Rafting during high temperature deformation in a single crystal superalloy: experiments and modeling T2 - Superalloys 2012 - 12th International symposium on superalloys CY - Seven, Springs, PA, USA DA - 2012-09-09 KW - Creep KW - Single crystal KW - Rafting KW - Modeling KW - CMSX-4 KW - Low-cycle-fatigue PY - 2012 SP - 491 EP - 500 PB - Wiley AN - OPUS4-26842 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Protz, Christian A1 - Völzke, Holger A1 - Ellouz, Manel A1 - Kasparek, Eva Maria A1 - Zencker, Uwe A1 - Grünewald, Heike A1 - Gründer, Klaus-Peter T1 - ConDrop - Development of numerical simulation approaches for drop test analyses of steel sheet containers T2 - 53rd INMM Annual meeting CY - Orlando, FL, USA DA - 2012-07-15 KW - INMM 53rd annual meeeting PY - 2012 SP - 1 EP - 7(?) AN - OPUS4-26417 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Völzke, Holger A1 - Nieslony, Gregor A1 - Ellouz, Manel A1 - Noack, Volker A1 - Hagenow, Peter A1 - Kovacs, Oliver A1 - Hörning, Tony T1 - Container approval for the disposal of radioactive waste with negligible heat generation in the German Konrad repository T2 - WM2012 - Waste management conference CY - Phoenix, AZ, USA DA - 2012-02-26 PY - 2012 SN - 978-0-9836186-1-4 N1 - Serientitel: WM Symposia – Series title: WM Symposia IS - Paper 12148 SP - 1 EP - 9 AN - OPUS4-26272 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Völzke, Holger A1 - Probst, Ulrich A1 - Wolff, Dietmar A1 - Nagelschmidt, Sven A1 - Schulz, Sebastian T1 - Seal and closure performance in long term storage T2 - PSAM 11 ESREL 2012 - 11th International probabilistic safety assessment and management conference & The annual european safety and reliability conference CY - Helsinki, Finland DA - 2012-06-25 KW - Metal seal KW - Interim storage KW - Long term performance PY - 2012 SP - 1 EP - 8(?) AN - OPUS4-26175 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Ellouz, Manel A1 - Völzke, Holger A1 - Protz, Christian T1 - Container safety assessment for the disposal of non-heat generating radioactive waste in the KONRAD repository T2 - 53rd INMM Annual meeting CY - Orlando, FL, USA DA - 2012-07-15 PY - 2012 SP - 1 EP - 9(?) AN - OPUS4-27217 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Ellouz, Manel A1 - Völzke, Holger A1 - Protz, Christian T1 - Container Safety Assesment for the Disposal of Non-Heat Generating Radioactive Waste in the KONRAD Repository T2 - 53rd Annual Meeting, INMM CY - Orlando, FL, USA DA - 2012-07-15 PY - 2012 AN - OPUS4-26373 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Völzke, Holger T1 - The nuclear policy in Germany with regard to waste management issues T2 - Workshop KAERI (Korean Atomic Energy Research Institute) - BAM CY - Daejeon, South Korea DA - 2012-09-11 PY - 2012 AN - OPUS4-26817 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Völzke, Holger T1 - Interim Spent Fuel Storage in Germany T2 - US Nuclear Used Fuel Strategy Conference CY - Charlotte, NC, USA DA - 2012-11-28 PY - 2012 AN - OPUS4-27118 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Scheidemann, Robert A1 - Droste, Bernhard A1 - Völzke, Holger A1 - Müller, Karsten T1 - Dynamic compression tests on damping materials T2 - Radioactive Materials Transport and Storage Conference 2012, RAMTRANS CY - London, England DA - 2012-05-22 PY - 2012 AN - OPUS4-25962 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Qiao, Linan A1 - Zencker, Uwe A1 - Musolff, André A1 - Kuschke, Christian A1 - Komann, Steffen A1 - Völzke, Holger T1 - Numerical Investigation of a Complex Drop Test Scenario T2 - Radioactive Materials Transport and Storage Conference 2012 CY - London, England DA - 2012-05-23 PY - 2012 AN - OPUS4-25973 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Völzke, Holger T1 - Internationale Entwicklungen zur langfristig sicheren Zwischenlagerung bestrahlter Brennelemente T2 - 3. RAM-Behältersicherheitstage, BAM CY - Berlin, Germany DA - 2012-03-22 PY - 2012 AN - OPUS4-25671 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Völzke, Holger T1 - Spent Fuel Management Experience, Status and Plans in Germany T2 - NEI Used Fuel Management Conference CY - St. Petersburg, FL, USA DA - 2012-05-08 PY - 2012 AN - OPUS4-25959 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Skrotzki, Birgit A1 - Fedelich, Bernard A1 - Epishin, A. A1 - Link, T. A1 - Klingelhöffer, Hellmuth A1 - Portella, Pedro Dolabella T1 - Implementation of Creep Induced Rafting into Mechanical Modelling of Superalloys T2 - 12th International Conference on Creep and Fracture of Engineering Materials and Structures CY - Kyoto, Japan DA - 2012-05-27 PY - 2012 AN - OPUS4-26139 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Wille, Frank A1 - Wolff, Dietmar A1 - Droste, Bernhard A1 - Völzke, Holger T1 - Requirements on Transport Packages after Interim Storage - Current Approach and Perspectives T2 - RamTransport 2012, 9th International Conference on Radidoactive Material Transport and Storage CY - London, England DA - 2012-05-23 PY - 2012 AN - OPUS4-26173 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Völzke, Holger A1 - Nieslony, Gregor A1 - Noack, Volker A1 - Hagenow, Peter A1 - Kovacs, Oliver T1 - Current developments in container design testing for the Konrad repository KW - Radioactive waste KW - Container KW - Testing KW - Konrad repository PY - 2012 SN - 1431-5254 VL - 57 IS - 5 SP - 343 EP - 346 PB - Inforum CY - Berlin AN - OPUS4-25988 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Völzke, Holger A1 - Probst, Ulrich A1 - Wolff, Dietmar A1 - Nagelschmidt, Sven A1 - Schulz, Sebastian T1 - Seal and Closure Performance in Long Term Storage T2 - PSAM11 CY - Helsinki, Finland DA - 2012-06-25 PY - 2012 AN - OPUS4-26128 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Qiao, Linan A1 - Zencker, Uwe A1 - Völzke, Holger A1 - Wille, Frank A1 - Musolff, André ED - Topping, B.H.V. T1 - Validation of numerical simulation models for transport and storage casks using drop test results N2 - The safety assessment of new designs for transport and storage casks for radioactive materials is a challenging task accomplished using different methods such as prototype tests, model tests, calculations and analogy reflections. At BAM (Federal Institute for Materials Research and Testing), the test procedures for the mechanical IAEA (International Atomic Energy Agency) test conditions often start with preliminary finite element (FE) calculations mostly with a small-scale cask model for verification of the proposed test cask instrumentation and test plan. On that basis the extensive test cask instrumentation is applied and checked. After that, a series of drop tests consisting of different test sequences is performed. Following the drop tests, numerical post-analyses are carried out. These analyses offer the possibility of a detailed calculation and assessment of stresses and strains in the entire test cask construction. The calculation results have to be carefully compared with the measurement data over the impact history to find out all relevant parameters for a realistic simulation of the impact scenario. The desired ideal boundary test conditions often cannot be met exactly during the drop tests. Therefore, the numerical post-analyses are carried out by using the real boundary conditions of the drop tests. The objective is to find a validated model, where the results of the numerical simulations satisfactorily meet the experimental results. Under test conditions according to the IAEA transport regulations, casks are usually equipped with impact limiters and dropped onto a so-called unyielding target. In general, it is difficult to verify a complex FE model by using results from only one drop test because of the complex impact process and the complex structure of such packages. After each drop test, numerical post-analyses should be carried out. Only if all drop tests were simulated successfully by using the same FE model under different test conditions, it is possible to obtain a validated numerical model for further investigations. In this case the results of the numerical simulations meet satisfactorily the experimental results. In this paper a study is presented, where the influence of different components on the cask loading is investigated systematically. T2 - 11th International conference on computational structures technology CY - Dubrovnik, Croatia DA - 2012-09-04 KW - Impact KW - Simulation KW - Cask KW - Dop test KW - Finite element model KW - Validation KW - Dynamics KW - Transport and storage cask PY - 2012 U6 - https://doi.org/10.4203/ccp.99.273 SN - 1759-3433 IS - Paper 273 SP - 1 EP - 12 PB - Civil Comp Press AN - OPUS4-26537 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Fedelich, Bernard A1 - Epishin, A. A1 - Link, T. A1 - Klingelhöffer, Hellmuth A1 - Künecke, Georgia A1 - Portella, Pedro Dolabella T1 - Rafting during high temperature deformation in a single crystal superalloy: Experiments and modeling T2 - Superalloys 2012: The 12th International Symposium on Superalloys CY - Champion, PA, USA DA - 2012-09-09 PY - 2012 AN - OPUS4-26623 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Fedelich, Bernard A1 - Epishin, A. A1 - Link, T. A1 - Klingelhöffer, Hellmuth A1 - Portella, Pedro Dolabella A1 - Skrotzki, Birgit ED - Maruyama, K. ED - Abe, F. ED - Igarashi, M. ED - Kishida, K. ED - Suzuki, M. ED - Yoshimi, K. T1 - Implementation of creep induced rafting into mechanical modelling of superalloys T2 - 12th International conference on creep and fracture of engineering materials and structures CY - Kyoto, Japan DA - 2012-05-27 KW - Single-crystal nickel-base superalloys KW - Microstructural degradation KW - Creep KW - Modelling KW - Rafting PY - 2012 SP - 1 EP - 4(?) AN - OPUS4-27564 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Fedelich, Bernard A1 - Epishin, A. A1 - Link, T. A1 - Klingelhöffer, Hellmuth A1 - Künecke, Georgia A1 - Portella, Pedro Dolabella T1 - Experimental characterization and mechanical modeling of creep induced rafting in superalloys N2 - A constitutive model has been developed for the high temperature mechanical behavior of single crystal superalloys, including rafting and its consequences. The flow stress depends on the γ channel width via the Orowan stress. An evolution equation for channel widening during high temperature straining has been derived and calibrated with measurements. Therein, rafting is assumed to be driven by the relaxation of internal stresses. The model is able to represent the mechanical softening at high stresses consecutive to rafting. The model has been applied to simulate rafting during uniaxial creep in several crystal orientations, in notched specimens as well as in cyclically loaded specimens. KW - Single crystal KW - Superalloys KW - Rafting KW - Creep KW - Viscoplasticity KW - Constitutive law PY - 2012 U6 - https://doi.org/10.1016/j.commatsci.2012.05.071 SN - 0927-0256 VL - 64 SP - 2 EP - 6 PB - Elsevier CY - Amsterdam AN - OPUS4-26401 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Völzke, Holger A1 - Wolff, Dietmar A1 - Kasparek, Eva Maria A1 - Botsch, W. A1 - Drotleff, H.-W. A1 - Hinterding, P. A1 - Smalian, S. T1 - Safety aspects of dry spent fuel storage and spent fuel management T2 - ENC 2012 - European nuclear conference - Transactions - Fuel cycle CY - Manchester, UK DA - 2012-12-09 PY - 2012 SN - 978-92-95064-14-0 IS - ENC2012-A0054 SP - 1 EP - 5 AN - OPUS4-27557 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Rienitz, O. A1 - Schiel, D. A1 - Görlitz, V. A1 - Jährling, R. A1 - Vogl, Jochen A1 - Lara-Manzano, J.V. A1 - Zon, A. A1 - Fung, W.-H. A1 - Buzoianu, M. A1 - De Sena, R.C. A1 - Dos Reis, L.A. A1 - Valiente, L. A1 - Yim, Y.-H. A1 - Hill, S. A1 - Champion, R. A1 - Fisicaro, P. A1 - Bing, W. A1 - Turk, G.C. A1 - Winchester, M. R. A1 - Saxby, D. A1 - Merrick, J. A1 - Hioki, A. A1 - Miura, T. A1 - Suzuki, T. A1 - Linsky, M. A1 - Barzev, A. A1 - Máriássy, M. A1 - Cankur, O. A1 - Ari, B. A1 - Tunc, M. A1 - Konopelko, L.A. A1 - Kustikov, Y.A. A1 - Bezruchko, M. T1 - Final report on CCQM-K87: Mono-elemental calibration solutions N2 - The aim of this comparison was to demonstrate the capability of national metrology institutes to measure elemental mass fractions at a level of w(E) ≈ 1 g/kg as found in almost all mono-elemental calibration solutions. These calibration solutions represent an important link in traceability systems in inorganic analysis. Virtually all traceable routine measurements are linked to the SI through these calibration solutions. Every participant was provided with three solutions of each of the three selected elements chromium, cobalt and lead. This comparison was a joint activity of the Inorganic Analysis Working Group (IAWG) and the Electrochemical Analysis Working Group (EAWG) of the CCQM and was piloted by the Physikalisch-Technische Bundesanstalt (PTB, Braunschweig, Germany) with the help of the Bundesanstalt für Materialforschung und -prüfung (BAM, Berlin, Germany), the Centro Nacional de Metrología (CENAM, Querétaro, Mexico) and the National Institute of Standards and Technology (NIST, Gaithersburg, USA). A small majority of participants applied inductively coupled plasma optical emission spectrometry (ICP OES) in combination with a variety of calibration strategies (one-point-calibration, bracketing, calibration curve, each with and without an internal standard). But also IDMS techniques were carried out on quadrupole, high resolution and multicollector ICP-MS machines as well as a TIMS machine. Several participants applied titrimetry. FAAS as well as ICP-MS combined with non-IDMS calibration strategies were used by at least one participant. The key comparison reference values (KCRV) were agreed upon during the IAWG/EAWG meeting in November 2011 held in Sydney as the added element content calculated from the gravimetric sample preparation. Accordingly the degrees of equivalence were calculated. Despite the large variety of methods applied no superior method could be identified. The relative deviation of the median of the participants' results from the gravimetric reference value was equal or smaller than 0.1% (with an average of 0.05%) in the case of all three elements. KW - CCQM KW - Metrology KW - IDMS PY - 2012 U6 - https://doi.org/10.1088/0026-1394/49/1A/08010 SN - 0026-1394 SN - 1681-7575 VL - 49 IS - 08010, 1A (Technical Supplement 2012) SP - 1 EP - 104 PB - Inst. of Physics Publ. CY - Bristol AN - OPUS4-30458 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Kemna, A. A1 - Binley, A. A1 - Cassiani, G. A1 - Niederleithinger, Ernst A1 - Revil, A. A1 - Slater, L. A1 - Williams, K. H. A1 - Orozco, A.F. A1 - Haegel, F.-H. A1 - Hördt, A. A1 - Kruschwitz, Sabine A1 - Leroux, V. A1 - Titov, K. A1 - Zimmermann, E. T1 - An overview of the spectral induced polarization method for near-surface applications N2 - Over the last 15 years significant advancements in induced polarization (IP) research have taken place, particularly with respect to spectral IP (SIP), concerning the understanding of the mechanisms of the IP phenomenon, the conduction of accurate and broadband laboratory measurements, the modelling and inversion of IP data for imaging purposes and the increasing application of the method in near-surface investigations. We summarize here the current state of the science of the SIP method for near-surface applications and describe which aspects still represent open issues and should be the focus of future research efforts. Significant progress has been made over the last decade in the understanding of the microscopic mechanisms of IP; however, integrated mechanistic models involving different possible polarization processes at the grain/pore scale are still lacking. A prerequisite for the advances in the mechanistic understanding of IP was the development of improved laboratory instrumentation, which has led to a continuously growing data base of SIP measurements on various soil and rock samples. We summarize the experience of numerous experimental studies by formulating key recommendations for reliable SIP laboratory measurements. To make use of the established theoretical and empirical relationships between SIP characteristics and target petrophysical properties at the field scale, sophisticated forward modelling and inversion algorithms are needed. Considerable progress has also been made in this field, in particular with the development of complex resistivity algorithms allowing the modelling and inversion of IP data in the frequency domain. The ultimate goal for the future are algorithms and codes for the integral inversion of 3D, time-lapse and multi-frequency IP data, which defines a 5D inversion problem involving the dimensions space (for imaging), time (for monitoring) and frequency (for spectroscopy). We also offer guidelines for reliable and accurate measurements of IP spectra, which are essential for improved understanding of IP mechanisms and their links to physical, chemical and biological properties of interest. We believe that the SIP method offers potential for subsurface structure and process characterization, in particular in hydrogeophysical and biogeophysical studies. KW - Induced polarisation KW - Review KW - Moisture KW - Soil KW - Masonry resistivity PY - 2012 U6 - https://doi.org/10.3997/1873-0604.2012027 SN - 1569-4445 VL - 101 IS - 6 SP - 453 EP - 468 PB - EAGE - European Association of Geoscientists & Engineers CY - Houten AN - OPUS4-27433 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - THES A1 - Maack, Stefan T1 - Untersuchungen zum Schallfeld niederfrequenter Ultraschallprüfköpfe für die Anwendung im Bauwesen N2 - Durch intensive praxisbezogene Forschung konnte in den letzten Jahrzehnten das Spektrum der zerstörungsfreien Prüfverfahren im Bauwesen deutlich erweitert werden. Die akustischen Methoden im Bereich des Niederfrequenz-Ultraschalls nehmen hierbei eine zentrale Rolle ein. Mit der Einführung von kontaktmittelfrei arbeitenden Prüfköpfen gelang es schließlich, eine breite Akzeptanz für diese Untersuchungsmethode in der Praxis zu erzielen. Bedingt durch die oft großen Untersuchungsflächen, rückte die Dauer der Messdatenaufnahme unter wirtschaftlichen Gesichtspunkten immer mehr in den Fokus der Forschung. Eine Optimierung der Messzeit durch den Einsatz von vollautomatischen Scannern oder von parallel arbeitenden Prüfköpfen ist nur einem begrenzten Umfang möglich. In der Grundlagenarbeit „Luftgekoppeltes Ultraschallecho-Verfahren für Betonbauteile“ zeigt Herr Dr.- Ing. B. Gräfe das Potenzial der berührungslos arbeitenden Schallanregung hinsichtlich der Verringerung der Messzeit auf. Das Ziel der vorliegenden Arbeit ist es, grundlegende Fragestellungen für eine baupraktische Anwendung des luftgekoppelten Ultraschallecho-Verfahrens zu beantworten. Die sich ausbildenden Wellenarten hängen maßgeblich vom Winkel, unter dem der Schallimpuls aus der Luft auf die Oberfläche auftrifft und dem Abstand des Prüfkopfes zum Bauteil ab. Ein zentraler Punkt ist daher die genaue Kenntnis der Eigenschaften der angeregten Schallfelder unter Berücksichtigung dieser Randbedingungen. Mit der physikalischen Beschreibung des Schallfeldes ist es möglich, das Messverfahren hinsichtlich der verschieden gestellten Prüfaufgaben zu optimieren und Auswertungs- algorithmen zur sicheren Interpretation der Messdaten zu entwickeln. Recherchen zum Thema der Schallfeldanalysen in Festkörpern im Niederfrequenz-Bereich ergaben, dass auch die Kenntnisse zu den bereits weitverbreiteten Kontaktprüfköpfen nicht in einem ausreichenden Umfang messtechnisch abgesichert waren. Daher wurden diese ebenfalls in das Messprogramm aufgenommen. Für die Bestimmung der Kennwerte des Schallfeldes von Ultraschallprüfköpfen wurde ein Prüfstand geplant und gebaut. Das Konzept des Prüfstandes ist so ausgerichtet, dass neben der räumlichen Erfassung des Schallfeldes zusätzlich die stofflichen Einflüsse des durchschallten Mediums erfasst werden. Dies wird durch die Messung an halbkugelförmigen Probekörpern mit unterschiedlichen Durchmessern erreicht. Der Schwerpunkt der Untersuchungen liegt auf dem Werkstoff Beton. Bei dem Probenmaterial handelt es sich um einen selbstverdichtenden Beton, dessen Zusammensetzung geringe schallschwächende Eigenschaften aufweist. Die Rezepturen für diese Betone wurden an der Technischen Universität Berlin entwickelt. Es wurden Serien von jeweils vier Probekörpern unterschiedlicher Materialeigenschaften hergestellt. Variiert wurde bei den Serien der Probekörper die Größe der Gesteinskörnung, um eine erste Einschätzung des Einflusses der Materialzusammen- setzung auf das Schallfeld vornehmen zu können. Die Messdaten werden mit einer eigenständig entwickelten Software aufgezeichnet und ausgewertet. Aus den experimentell gewonnenen Kennwerten werden anschließend erstmalig räumliche Schallfelder für den Niederfrequenz-Bereich im Beton berechnet. Die Verifikation der Messergebnisse erfolgte durch den Einsatz unterschiedlicher Simulationsverfahren, die durch Partnerinstitute durchgeführt wurden. Im baupraktischen Teil der Arbeit werden die Erfahrungen aus realen Schadensanalysen präsentiert. Hierauf aufbauend wurden im Rahmen einer parallel laufenden Forschungsarbeit Probekörper hergestellt, an denen erste Untersuchungen mit einer luftgekoppelten Schallanregung durchgeführt wurden. Zu diesem Zweck wurden neben den Schallfeldanalysen Parameterstudien zu den optimalen Bedingungen der Schallanregung notwendig. Insbesondere die Oberflächenwellen und deren störender Einfluss wurden hierbei systematisch untersucht. Neben der Präsentation erfolgreicher Ergebnisse werden auch die gegenwärtigen Grenzen des Verfahrens aufgezeigt. N2 - Using intensive practical research, the spectrum of non-destructive testing methods has been able to be clearly extended in civil engineering over recent decades. Low frequency ultrasound plays a central role in the acoustic methods in this sector. Finally, with the introduction of contact agent-free testing heads, success was achieved in gaining wide acceptance for this Investigation method in practice. Conditioned by the often large surfaces, the duration of the measuring data itself came ever more into focus of the research, with regard to an economic point of view. An optimisation of the measuring time with the application of fully automatic scanners or from in-parallel working test heads is possible only to a limited extent. In the basic underlying work, qualified engineer Mr. B Gräfe shows with his work "Luftgekoppeltes Ultraschallecho-Verfahren für Betonbauteile“, the potential of contact agent-free clangour with regard to the reduction of overall measuring time. It is the aim of this work to provide answers to the basic questions regarding practical construction problems of the air-coupled ultrasonic echo procedure. The resulting waves depend on the angle at which the sound impulse meets the surface, as well as the distance of the test head to the component itself. A central criteria is the precise knowledge of the qualities of the animated sound fields whilst taking into consideration these Framework conditions. Using a physical description of the sound field it is possible to optimise the test results with regard to the various measuring procedures and develop evaluation algorithms for secure interpretation of the measuring data. Research on the subject of sound field analyses in solid states in low frequency Areas proved that the knowledge regarding widespread contact test heads has not been sufficiently metrologically secured. For this reason, these were also considered in the measuring programme. For regulation of the sound field core values for the ultrasonic test heads, a test bench was planned and constructed. The test bench concept was so targeted that, in addition to the spatial capture of the sound field, the seismic influence of the material could also be registered. This was achieved using hemispherically-shaped test bodies with differing diameters. The main focus of the investigation was on concrete. The test material was self-compacting concrete, and ist composition displayed low sound-proofing qualities. The recipes for this concrete were developed at the University of Technology in Berlin. These were developed as a series of four test bodies, in each case. The variable introduced were a size variety of coarse aggregate in order to obtain an initial idea of the influence of the material composition on the sound field. The measuring data was recorded on independently developed software and evaluated. Using the data gleaned from the experimental stage, initial calculations for spatial sound fields were made to assess low frequency response in concrete. The verification of these measuring results occurred via the application of a variety of simulation procedures which were carried out by partner institutes. In the practical construction section, experiences from genuine damage analyses are presented. Building on these results, test bodies were constructed in a parallel-running research project, whose initial investigations were carried out using an air-coupled sound source. For this purpose, parameter studies to ascertain the optimum conditions of the sound source became necessary, in addition to the sound field analyses. In particular, surface waves and their annoying influence were systematically examined. As well as the presentation of successful results, the present borders of the procedure have also been indicated. T3 - BAM Dissertationsreihe - 95 KW - Schallfeld KW - Ultraschall KW - Richtcharakteristik KW - Bauwesen KW - Werkstoffprüfung PY - 2012 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:b43-633 SN - 978-3-9815134-0-3 SN - 1613-4249 VL - 95 SP - 1 EP - 182 PB - Bundesanstalt für Materialforschung und -prüfung (BAM) CY - Berlin AN - OPUS4-63 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Baeßler, Matthias A1 - Niederleithinger, Ernst A1 - Georgi, Steven A1 - Herten, M. ED - Matsumoto, T. T1 - Evaluation of the dynamic load test on bored piles in sandy soil N2 - This paper summarizes the detailed planning of an evaluation project for dynamic load tests on bored piles in sandy soil. A test site had to be prepared, which ensures comparable conditions at all pile locations as well as a detailed knowledge on soil parameters and other boundary conditions. A detailed site investigation program was performed at a dedicated area on the BAM test site near Horstwalde south of Berlin, Germany. The site consists mainly of well graded, partly well compacted medium sands. A test program is designed that aims to give full responsibility for the testing performance to the operating consulting engineers. While each consultant is responsible for the testing of one of eight similar virgin piles, the test results will be compared to static load tests performed after the pile capacity analysis. The tests aim at a better understanding of the reliability of dynamic load tests and the necessary precautions for a good quality result. T2 - IS Kanazawa 2012 - 9th International conference on testing and design methods for deep foundations CY - Kanazawa, Japan DA - 18.09.2012 KW - Pile capacity KW - Bored pile KW - Evaluation study KW - Dynamic load test KW - Static load test PY - 2012 SN - 978-4-89010-597-7 IS - Paper 017 SP - 155 EP - 162 PB - Kanazawa e-Publishing Co., Ltd. AN - OPUS4-26901 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Helmerich, Rosemarie A1 - Niederleithinger, Ernst A1 - Trela, Christiane A1 - Bien, J. A1 - Kaminski, T. A1 - Bernardini´, G. T1 - Multi-tool inspection and numerical of an old masonry arch bridge N2 - Complex special inspection of an old masonry arch bridge according to the Guideline on Inspection and Condition Assessment of Railway Bridges and numerical analysis of the structure are presented. The guideline summarises recommendations for the step-by-step investigation of railway bridges applying enhanced methods developed during the EU-funded project Sustainable Bridges. For the investigation of the arch barrel, the ballast parameters and the inner structure of the backfill behind the arch barrel a number of various advanced non-destructive and minor-destructive testing methods were applied. Deformation of the structure during load tests was measured using three independent measuring systems: laser vibrometer, LVDT and microwave radar. Results of calculations performed with 2D and 3D models based on FEM are compared with the field load tests. Sensitivity of the ultimate load of the structure to investigated parameters is studied in FE model. Some general conclusions according to methods of testing and modelling of masonry arch bridges are presented and discussed. KW - Masonry bridges KW - Non-destructive testing KW - Bridge inspection KW - Finite element method PY - 2012 SN - 1573-2479 VL - 8 IS - 1 SP - 27 EP - 39 PB - Taylor & Francis CY - London [u.a.] AN - OPUS4-27425 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Vogl, Jochen T1 - Advances in Isotope Ratio Mass Spectrometry and Required Isotope Reference Materials T2 - 19th International Mass Spectrometry Conference CY - Kyoto, Japan DA - 2012-09-15 PY - 2012 AN - OPUS4-30766 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Vogl, Jochen T1 - CCQM-K98/P134 - Pb isotope amount ratios in bronze T2 - CCQM IAWG Meeting CY - Istanbul, Turkey DA - 2012-10-09 PY - 2012 AN - OPUS4-30777 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Vogl, Jochen T1 - Measurement uncertainty in single, double and triple isotope dilution mass spectrometry N2 - Triple IDMS has been applied for the first time to the quantification of element concentrations. It has been compared with single and double IDMS obtained on the same sample set in order to evaluate the advantages and disadvantages of triple IDMS over single and double IDMS as an analytical reference procedure. The measurement results of single, double and triple IDMS are indistinguishable, considering rounding due to the individual measurement uncertainties. As expected, the relative expanded uncertainties (k = 2) achieved with double IDMS (0.08 %) are dramatically smaller than those obtained with single IDMS (1.4 %). Triple IDMS yields the smallest relative expanded uncertainties (k = 2, 0.077 %) unfortunately at the expense of a much higher workload. Nevertheless triple IDMS has the huge advantage that the isotope ratio of the spike does not need to be determined. Elements with high memory effects, highly enriched spikes or highest metrological requirements may be typical applications for triple IDMS. KW - Single IDMS KW - Double IDMS KW - Triple IDMS KW - Measurement uncertainty KW - Cd mass fraction PY - 2012 U6 - https://doi.org/10.1002/rcm.5306 SN - 0951-4198 SN - 1097-0231 VL - 26 IS - 3 SP - 275 EP - 281 PB - Wiley CY - Chichester AN - OPUS4-25292 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Kipphardt, Heinrich A1 - Vogl, Jochen A1 - Panne, Ulrich T1 - Chemie genau genommen- Metrologie in der Chemie T2 - 6. Interdisziplinäres Doktorandenseminar (GDCh&DECHEMA) CY - Berlin, Germany DA - 2012-02-26 PY - 2012 AN - OPUS4-25561 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Rosner, Martin A1 - Vogl, Jochen T1 - Bor: Isotopenverhältnisse und die Herkunft einer Probe N2 - Die Industrie nutzt die Borisotopenanalytik in nukleartechnischen Anwendungen. Umwelt- und Geowissenschaften identifizieren anhand der Borisotopenverhältnisse Kontaminationsquellen und charakterisieren Mischungs- und Fraktionsprozesse. In der Lebensmittelanalytik dient der Parameter dazu, Herkunft und Anbauweise von Obst und Gemüse herauszufinden. Seit kurzem gibt es dafür ein validiertes Verfahren und erste Referenzdaten. KW - Isotopenverhältnisse KW - Herkunft KW - TIMS PY - 2012 SN - 1439-9598 SN - 1521-3854 VL - 60 IS - 2 SP - 147 EP - 149 PB - Wiley-VCH Verl. CY - Weinheim AN - OPUS4-25575 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Bienert, K. A1 - Schalk, H. A1 - Molkenthin, A. A1 - Wilsch, Gerd A1 - Goldschmidt, Sebastian A1 - Niederleithinger, Ernst ED - Grantham, M. ED - Mechtcherine, V. ED - Schneck, U. T1 - Quality control of hydrophobic coatings with an integrated marker element by laser-induced breakdown spectroscopy (LIBS) T2 - Concrete solutions 2011 - 4th International conference on concrete repair CY - Dresden, Germany DA - 2011-09-26 KW - Laser induced breakdown spectroscopy (LIBS) KW - Hydrophobic coating KW - Quality control KW - Depth of penetration KW - Concrete repair KW - Chloride PY - 2012 SN - 978-0-415-61-622-5 SP - 805 EP - 811 PB - Taylor & Francis CY - London AN - OPUS4-25151 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Jakubowski, Norbert A1 - Kipphardt, Heinrich A1 - Lindner, Uwe A1 - Lingott, Jana A1 - Recknagel, Sebastian A1 - Traub, Heike A1 - Balski, Matthias A1 - Giesen, Charlotte A1 - Müller, Larissa A1 - Sugiyama, Kaori A1 - Panne, Ulrich T1 - The Role of Modern Plasma-based Spectroscopies in the Material Sciences T2 - 2012 Winter Conference on Plasma Spectrochemistry CY - Tucson, AZ, USA DA - 2012-01-09 PY - 2012 N1 - Geburtsname von Müller, Larissa: Wäntig, L. - Birth name of Müller, Larissa: Wäntig, L. N1 - Geburtsname von Sugiyama, Kaori: Shigeta, K. - Birth name of Sugiyama, Kaori: Shigeta, K. AN - OPUS4-25366 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Müller, Sabine A1 - Niederleithinger, Ernst A1 - Krause, Martin A1 - Bohlen, T. T1 - Anwendung der Reverse-Time Migration auf Ultraschall-Echo-Messungen in der zerstörungsfreien Prüfung T2 - Jahrestagung der Deutschen Geophysikalischen Gesellschaft (DGG) CY - Hamburg, Germany DA - 2012-03-05 PY - 2012 AN - OPUS4-25609 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - GEN A1 - Paz, B. A1 - Meyer, H.-P. A1 - Varychev, A. A1 - Rosner, M. A1 - Vogl, Jochen A1 - Behrendt, S. ED - Treister, M. ED - Yablonsky, L. T1 - Archäometrische Untersuchungen an achaimenidischen Glasgefäßen aus den Gräbern der frühen Nomaden des südlichen Urals KW - Archäometrie KW - Isotopenverhältnisse Strontium und Blei KW - Elementanalyse KW - Massenspektrometrie KW - Herkunft PY - 2012 SN - 978-5-903011-85-8 VL - 1 SP - 262 EP - 267 PB - TAUS CY - Moskau AN - OPUS4-26899 LA - rus AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Jakubowski, Norbert A1 - Kipphardt, Heinrich A1 - Lindner, Uwe A1 - Lingott, Jana A1 - Recknagel, Sebastian A1 - Traub, Heike A1 - Balski, Matthias A1 - Giesen, Charlotte A1 - Müller, Larissa A1 - Sugiyama, Kaori A1 - Panne, Ulrich T1 - The Role of Modern Plasma-based Spectroscopies in the Material and Life Sciences T2 - 2012 Asia-Pacific Winter Conference on Plasmaspectrochemistry CY - Jeju, South Korea DA - 2012-08-26 PY - 2012 N1 - Geburtsname von Müller, Larissa: Wäntig, L. - Birth name of Müller, Larissa: Wäntig, L. AN - OPUS4-26472 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Niederleithinger, Ernst A1 - Wunderlich, Carolin ED - Meßinger, J. T1 - Temperature influence on ultrasonic velocity in concrete T2 - 2nd Neustadt workshop CY - Neustadt a.d. Weinstraße DA - 2012-11-11 KW - Coda wave interferometry KW - Concrete KW - Temperature KW - Ultrasound KW - Velocity PY - 2012 SN - 0947-1944 VL - IV SP - 60 EP - 61 PB - Dt. Geophysikalische Ges. CY - Potsdam AN - OPUS4-27224 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Wiggenhauser, Herbert A1 - Wilsch, Gerd A1 - Goldschmidt, Sebastian A1 - Niederleithinger, Ernst A1 - Bienert, Klaus A1 - Schalk, Heike A1 - Molkenthin, A. T1 - Quality Control of Hydrophobic Coatings with an Integrated Marker Element by Laser-Induced Breakdown Spectroscopy (LIBS) T2 - International Congress on Durability of Concrete CY - Trondheim, Norway DA - 2012-06-18 PY - 2012 AN - OPUS4-27414 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF ED - Schmidt, A. ED - Sens-Schönfelder, C. ED - Hadziioannou, C. ED - Wegler, U. ED - Niederleithinger, Ernst T1 - Noise and diffuse wavefields / Extended Abstracts of the Neustadt Workshop T2 - 2nd Neustadt workshop CY - Neustadt a.d. Weinstraße, Germany DA - 2012-11-11 KW - Coda wave interferometry KW - Seismology KW - Materials testing KW - Ultrasonics KW - Noise PY - 2012 SN - 0947-1944 VL - Sonderband IV SP - 1 EP - 100 AN - OPUS4-27223 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Niederleithinger, Ernst A1 - Weller, Andreas A1 - Lewis, R. T1 - Geophysikalische Verfahren zur Strukturerkundung im Deichbau T2 - Jahreskongress 2012 Bund der Ingenieure für Wasserwirtschaft, Abfallwirtschaft und Kulturbau (BWK) e.V., Landesverband Brandenburg und Berlin e.V. CY - Frankfurt (Oder), Germany DA - 2012-06-01 PY - 2012 AN - OPUS4-26889 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Niederleithinger, Ernst T1 - The parallel seismic method for foundation length measurement: Useful also to check pile integrity? T2 - 9th International Conference on Testing and Design Methods for Deep Foundations CY - Kanazawa, Japan DA - 2012-09-18 PY - 2012 AN - OPUS4-26888 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Niederleithinger, Ernst A1 - Wunderlich, Carolin T1 - Temperature influence on ultrasonic velocity in concrete T2 - Noise and Diffuse Wavefields 2012 CY - Neustadt an der Waldnaab, Germany DA - 2012-11-11 PY - 2012 AN - OPUS4-27058 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Vogl, Jochen T1 - Characterization of isotope and matrix reference materials using ICP-MS instruments T2 - 50-Jarig Jubileum Werkgroep Atoomspectrometrie CY - Tilburg, Netherlands DA - 2012-06-07 PY - 2012 AN - OPUS4-25948 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Vogl, Jochen T1 - Reference materials for isotope research T2 - 13th International Symposium on Biological and Environmental Reference Materials, BERM 13 CY - Vienna, Austria DA - 2012-06-25 PY - 2012 AN - OPUS4-26134 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Recknagel, Sebastian T1 - Anorganische Referenzmaterialien Metall - Boden - Keramik T2 - 100 Jahre Referenzmaterialien in der BAM CY - Berlin, Germany DA - 2012-11-15 PY - 2012 AN - OPUS4-27346 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Niederleithinger, Ernst A1 - Hübner, M. A1 - Müller, H. A1 - Kauther, R. T1 - Qualitätssicherung überschnittener Bohrpfahlwände mit der Ultraschallmethode am Beispiel der Schleuse Dörverden N2 - Überschnittene Bohrpfahlwände sind eine bewährte Konstruktionsmethode zur Herstellung tragender, hydraulisch dichter, tiefreichender Wände im Spezialtiefbau. Anders als bei Einzelpfählen gibt es bisher für die zerstörungsfreie Prüfung von Pfahlwänden keine etablierte Vorgehensweise. Erste Versuche an Baustellen und Modellkörpern zeigten das Potential der Ultraschallmethode (cross-hole sonic logging) zur Prüfung der Fugen über mehrere Pfähle hinweg. An der Schleusenbaustelle Dörverden ergab sich die Möglichkeit, das Verfahren unter Realbedingungen einzusetzen und die Ergebnisse visuell durch Kernbohrungen und nach Aushub zu evaluieren. Dabei wurden die meisten der prognostizierten Fehlstellen bestätigt. Die Resultate wurden in einer Neuauflage der entsprechenden Regelwerke berücksichtigt. T2 - Fachtagung Bauwerksdiagnose 2012 - Praktische Anwendungen zerstörungsfreier Prüfungen und Zukunftsaufgaben CY - Berlin, Deutschland DA - 2012-02-23 KW - Bohrpfahlwand KW - Ultraschallmethode PY - 2012 UR - http://www.bauwerksdiagnose2012.de/Portals/bwd2012/Dokumente/bb/v17.pdf SN - 978-3-940283-40-5 IS - Vortrag 17 SP - 1 EP - 11 CY - Berlin AN - OPUS4-27337 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Müller, Sabine A1 - Niederleithinger, Ernst A1 - Bohlen, T. T1 - Reverse time migration: a seismic imaging technique applied to synthetic ultrasonic data N2 - Ultrasonic echo testing is a more and more frequently used technique in civil engineering to investigate concrete building elements, to measure thickness as well as to locate and characterise built-in components or inhomogeneities. Currently the Synthetic Aperture Focusing Technique (SAFT), which is closely related to Kirchhoff migration, is used in most cases for imaging. However, this method is known to have difficulties to image steeply dipping interfaces as well as lower boundaries of tubes, voids or similar objects. We have transferred a processing technique from geophysics, the Reverse Time Migration (RTM) method, to improve the imaging of complicated geometries. By using the information from wide angle reflections as well as from multiple events there are fewer limitations compared to SAFT. As a drawback the required computing power is significantly higher compared to the techniques currently used. Synthetic experiments have been performed on polyamide and concrete specimens to show the improvements compared to SAFT. We have been able to image vertical interfaces of step-like structures as well as the lower boundaries of circular objects. It has been shown that RTM is a step forward for ultrasonic testing in civil engineering. KW - Beton KW - Ultraschall KW - Concrete KW - Imaging KW - Ultrasonics KW - Reverse time migration PY - 2012 U6 - https://doi.org/10.1155/2012/128465 SN - 1687-8868 SN - 1687-885X VL - 2012 IS - Article ID 128465 SP - 1 EP - 7 PB - Hindawi Publishing Corporation CY - New York, NY, USA AN - OPUS4-26295 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Wilsch, Gerd A1 - Schalk, H. A1 - Bienert, K. A1 - Molkenthin, A. A1 - Goldschmidt, Sebastian A1 - Niederleithinger, Ernst T1 - Quality control of hydrophobic coatings with an integrated marker element by laser-induced breakdown spectroscopy (LIBS) T2 - 2nd International conference Micro Durability - Microstructural-related durability of cementitious composites CY - Amsterdam, The Netherlands DA - 2012-04-11 KW - Hydrophobierung KW - Laser Induced Breakdown Spektroskopie (LIBS) KW - Qualitätskontrolle PY - 2012 SN - 978-2-35158-129-2 N1 - Serientitel: RILEM proceedings – Series title: RILEM proceedings VL - PRO83 SP - 1 EP - 10(?) AN - OPUS4-27534 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER -