TY - GEN A1 - Beck, M. A1 - Becker, S. A1 - Beckmann, Jörg A1 - Cojocari, O. A1 - Feige, V. A1 - Fischer, B. A1 - Friederich, F. A1 - Globisch, B. A1 - Haupt, H. A1 - Hechtfischer, G. A1 - Hens, K. A1 - Hübers, H.-W. A1 - Jelonnek, J. A1 - Jonuscheit, J. A1 - Keil, A. A1 - Kleine-Ostmann, T. A1 - Nickel, H.-U. A1 - Peichl, M. A1 - Peters, O. A1 - Sprenger, T. A1 - Steiger, A. A1 - van Frank, S. A1 - Vieweg, N. A1 - Werner, M. A1 - Wilk, R. T1 - Terahertzsysteme - Anwendungsfelder und Systeme N2 - Die nicht ionisierende elektromagnetische Strahlung im Bereich von Terahertz-Frequenzen ermöglicht berührungslose und zerstörungsfreie Mess- und Prüftechnik in zahlreichen Bereichen. Nach ersten Anwendungen in der Astronomie und der Atmosphärenforschung wurden in letzter Zeit Anwendungsfelder in der Sicherheitstechnik, der Medizintechnik, der Nachrichtentechnik und der zerstörungsfreien Prozess- und Qualitätskontrolle erschlossen. Dielektrische Materialien wie Kunststoffe und Keramiken können von Terahertz-Wellen durchdrungen werden. Das ermöglicht Untersuchungen des Objektinneren ohne spezielle Schutzmaßnahmen, wie sie z.B. beim Röntgen notwendig sind. Die Richtlinie erleichtert die Verständigung zwischen Nutzern, Herstellern und dem Vertrieb von Terahertz-Systemen. In der Richtlinie werden bekannte Einsatzgebiete sowie die eingesetzten Verfahren und Funktionsprinzipien aufgeführt, um den Leser bei der Auswahlentscheidung zu unterstützen. Nach einer kurzen Einführung in die physikalischen Grundlagen und Hinweisen zur elektromagnetischen Verträglichkeit, zum Strahlenschutz und zur regulierten Frequenzvergabe werden die verschiedenen Geräteklassen von Terahertz-Systemen ausführlich vorgestellt. Die Richtlinie gibt Hinweise zur messtechnischen Charakterisierung von Terahertz-Wellen. Einsatzgebiete von Terahertz-Systemen, wie die zerstörungsfreie Prüfung, die Dicken- und Abstandsmessung, die Tomografie und die chemische Analytik, werden mit ihren spezifischen Eigenschaften im Detail beschrieben. Umfangreiche Literaturverweise vereinfachen eine vertiefte Beschäftigung mit den Themen der Richtlinie. Eine tabellarische Übersicht mit einer Zusammenfassung, welche Terahertz-Systeme für welche Anwendungsfelder eingesetzt werden können, vervollständigt die Richtlinie. KW - Terahertzsysteme KW - THz-Wellen PY - 2018 UR - https://www.vdi.de/5590 VL - VDI/VDE 5590 Blatt 2 SP - 1 EP - 27 PB - VDI-Verlag CY - Düsseldorf ET - Entwurf - November 2018 AN - OPUS4-46727 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Hähner, P. A1 - Rinaldi, C. A1 - Bicego, V. A1 - Affeldt, E. E. A1 - Brendel, T. A1 - Andersson, H. A1 - Beck, T. A1 - Klingelhöffer, Hellmuth A1 - Kühn, Hans-Joachim A1 - Köster, A. A1 - Loveday, M. A1 - Marchionni, M. A1 - Rae, C. T1 - Research and development into a European code-of-practice for strain-controlled thermo-mechanical fatigue testing N2 - Thermo-mechanical fatigue (TMF) testing plays an increasingly important role in the design, the reliability assessment and the lifecycle management of safety critical components used, for instance, for power generation, in the process industry and in aeronautical and automotive applications, with a view to increasing the fuel efficiency, safety and service intervals, while reducing production (and material) costs. In a European Commission funded research project (acronym: TMF-Standard) of the 5th Framework Programme, 20 European laboratories have undertaken a joint research effort to establish a validated code-of-practice (CoP) for strain-controlled TMF testing. Starting from a survey of the testing protocols and procedures previously used by the partners, a comprehensive pre-normative research activity into various issues has been completed, addressing the dynamic temperature control, the effects of deviations in nominal temperatures and phase angles, the influences of temperature gradients, as well as the practicalities of test interruption and restart procedures. Meaningful allowable tolerances for the various test parameters were identified and practical recommendations as to the test techniques were formulated. From this a preliminary CoP was compiled and used to guide an extensive round robin exercise among the project partners. From the statistical analysis of that exercise, a validated CoP was derived dealing with strain-controlled constant amplitude TMF of nominally homogeneous metallic materials subjected to spatially uniform temperature fields and uniaxial mechanical loading. It is intended to give advice and guidance on the appropriate test setup, testing procedures and the analysis of results, in particular for newcomers in the field of strain-controlled TMF. This paper highlights some of the results of the TMF-Standard project. Moreover, commonalities and differences of the present CoP with respect to the standard documents for strain-controlled TMF, which have been developed at ISO and ASTM levels, are presented in this paper. KW - Thermo-mechanical fatigue KW - Ni-base superalloy KW - Standardisation KW - Test methods PY - 2008 DO - https://doi.org/10.1016/j.ijfatigue.2007.01.052 SN - 0142-1123 VL - 30 IS - 2 SP - 372 EP - 381 PB - Elsevier CY - Oxford AN - OPUS4-17536 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Favet, J. A1 - Lapanje, A. A1 - Giongo, A. A1 - Kennedy, S. A1 - Aung, Y.-Y. A1 - Cattaneo, A. A1 - Davis-Richardson, A.G. A1 - Brown, C.T. A1 - Kort, R. A1 - Brumsack, H.-J. A1 - Schnetger, B. A1 - Chappell, A. A1 - Kroijenga, J. A1 - Beck, A. A1 - Schwibbert, Karin A1 - Mohamed, A.H. A1 - Kirchner, T. A1 - Dorr de Quadros, P. A1 - Triplett, E.W. A1 - Broughton, William J. A1 - Gorbushina, Anna T1 - Microbial hitchhikers on intercontinental dust: catching a lift in Chad N2 - Ancient mariners knew that dust whipped up from deserts by strong winds travelled long distances, including over oceans. Satellite remote sensing revealed major dust sources across the Sahara. Indeed, the Bodélé Depression in the Republic of Chad has been called the dustiest place on earth. We analysed desert sand from various locations in Chad and dust that had blown to the Cape Verde Islands. High throughput sequencing techniques combined with classical microbiological methods showed that the samples contained a large variety of microbes well adapted to the harsh desert conditions. The most abundant bacterial groupings in four different phyla included: (a) Firmicutes—Bacillaceae, (b) Actinobacteria—Geodermatophilaceae, Nocardiodaceae and Solirubrobacteraceae, (c) Proteobacteria—Oxalobacteraceae, Rhizobiales and Sphingomonadaceae, and (d) Bacteroidetes—Cytophagaceae. Ascomycota was the overwhelmingly dominant fungal group followed by Basidiomycota and traces of Chytridiomycota, Microsporidia and Glomeromycota. Two freshwater algae (Trebouxiophyceae) were isolated. Most predominant taxa are widely distributed land inhabitants that are common in soil and on the surfaces of plants. Examples include Bradyrhizobium spp. that nodulate and fix nitrogen in Acacia species, the predominant trees of the Sahara as well as Herbaspirillum (Oxalobacteraceae), a group of chemoorganotrophic free-living soil inhabitants that fix nitrogen in association with Gramineae roots. Few pathogenic strains were found, suggesting that African dust is not a large threat to public health. KW - Aeolian KW - High throughput sequencing KW - Bodélé Depression KW - Republic of Chad KW - Wind erosion PY - 2013 DO - https://doi.org/10.1038/ismej.2012.152 SN - 1751-7362 SN - 1751-7370 VL - 7 SP - 850 EP - 867 PB - Nature Publishing Group CY - Basingstoke AN - OPUS4-28083 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - RPRT A1 - Rübner, Katrin A1 - Schneider, S. A1 - Beck, T. A1 - Flassenberg, G. A1 - Herbst, Tristan T1 - Stoffkreislauf im Mauerwerksbau - Nachhaltigkeitsanalyse für das Mauerwerksrecycling / Schlussbericht zum IGF-Vorhaben 17022 N N2 - In Deutschland fallen mittelfristig erhebliche Mengen von Mauerwerkbruch an. Aus dem jährlichen Bauschuttanfall und den Produktionszahlen von Wandbausteinen lassen sich die Mengen an Mauerwerksrestmassen ableiten, die als Rückbaumaterial bei Abriss-, Umbau und Sanierungsarbeiten in Deutschland anfallen werden. Hiernach ist pro Jahr mit bis zu 10 Millionen Tonnen heute vornehmlich heterogen anfallendem Mauerwerkbruch zu rechnen [1a]. Im Sinne einer nachhaltigen Kreislaufwirtschaft sind diese Restmassen zukünftig einem möglichst hochwertigen Recycling zuzuführen. In diesem Spannungsfeld führt die deutsche Mauersteinindustrie das breit aufgestellte gemeinschaftliche Forschungsprojekt "SIM Stoffkreislauf im Mauerwerksbau" durch. In insgesamt acht mauersteinübergreifenden IGFForschungsvorhaben wurden und werden technisch orientierte Lösungsmöglichkeiten für das Recycling von Mauerwerk erarbeitet und Anwendungsbereiche für Mauerwerksrestmassen aufgezeigt. Eine grundsätzliche Entscheidung über die Eignung von Mauerwerksrestmassen für bestimmte Recyclingwege kann es letztlich nicht geben. Es wird immer eine Einzelfallentscheidung bleiben, die wesentlich durch komplexe technische sowie ökologische und ökonomische Randbedingungen geprägt wird. Vor diesem Hintergrund wurde im Rahmen des IGF-Forschungsvorhabens 17022 N der Forschungsvereinigung Porenbetonindustrie e.V., Berlin die Nachhaltigkeit verschiedener Recyclingoptionen für Mauerwerkbruch ganzheitlich untersucht und bewertet. Unter Einbeziehung der Hauptwandbausteinarten Ziegel, Kalksandstein, Porenbeton und Leichtbeton wurden dabei material- und verfahrenstechnische sowie ökologische, ökonomische und soziale Aspekte berücksichtigt. Auf Grundlage der gewonnenen Erkenntnisse wurde ein EDV-gestütztes Analysetool (Web-Tool) zur Nachhaltigkeitsbewertung für das Mauerwerksrecycling entwickelt. Mit dem Web-Tool sollen Anwender (Planer, Architekten, Recycler) die Möglichkeit erhalten, für verschiedene Untersuchungsfälle unter Einbeziehung regional und sachlich bedingter Parameter, wie Materialqualität, Stoffmengen, Logistik, Aufbereitungstechnik, Anwendungsbereiche, Kosten und Erlöse, objektspezifische Aussagen zur Nachhaltigkeit treffen zu können. Auf diesem Wege können im Sinne der aktuellen gesetzlichen Vorgaben nachhaltige Stoffkreisläufe im Mauerwerksbau geschlossen und somit letztlich die Deponierung von Mauerwerksrestmassen vermieden werden. Alle vier Wandbaustoffarten haben sich im Rahmen des Forschungsvorhabens als recyclingfähig und hinsichtlich der Nachhaltigkeit als gleichwertig erwiesen. Das Ziel des Vorhabens wurde damit erreicht. KW - Nachhaltigkeit KW - Mauerwerkbruch KW - Ganzheitlichkeit PY - 2013 UR - https://nbn-resolving.org/urn:nbn:de:kobv:b43-288572 SP - 1 EP - 182 PB - Bundesanstalt für Materialforschung und -prüfung (BAM) CY - Berlin AN - OPUS4-28857 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - RPRT A1 - Hähner, P. A1 - Affeldt, E. E. A1 - Beck, T. A1 - Klingelhöffer, Hellmuth A1 - Loveday, M. A1 - Rinaldi, C. T1 - Validated code of practice for strain-controlled thermo-mechanical fatigue testing KW - TMF KW - Thermo-Mechanical strain-controlled fatigue testing PY - 2006 SN - 92-79-02216-4 SP - 1 EP - 37 PB - Office for Official Publications of the European Communities CY - Luxembourg AN - OPUS4-12756 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Chudoba, T. A1 - Schwarzer, N. A1 - Richter, F. A1 - Beck, Uwe T1 - Determination of mechanical film properties of a bilayer system due to elastic indentation measurements with a spherical indenter N2 - A recently developed theoretical model represents the generalization of the indentation of a sphere into an infinite homogeneous halfspace to the problem of a Hertzian load acting on a halfspace covered with one or more films having different elastic properties. The model allows the analytical calculation of the complete elastic stress field and the deformations within the films and the substrate. Some results of the model shall be confirmed by nanoindentation experiments using an UMIS-2000 nanoindenter into Si3N4/SiO2 and SiO2/ Si3N4 double layers on BK7 glass and Si(100) single crystal. The materials used allow accurate measurements due to their homogeneous, amorphous structure as well as low surface and interface roughness. After the determination of the instrument compliance and the real, depth dependent indenter radius the measured load–depth data are compared with calculated results. It is shown that measurement results can be correctly interpreted by the model. The onset of plastic deformation is investigated for the same samples by multiple partial unloading experiments with a 4-µm radius diamond sphere. The critical load at which a first deviation from a wholly elastic response occurs is used for a stress calculation with the model. The mechanical behavior of the different film combinations is interpreted by means of the von Mises comparison stress. The measured results, together with the analytical modeling, allow an optimization of the thickness and modulus of the individual layers to get a maximum mechanical stability. KW - Mechanical properties KW - Depth sensing indendation KW - Young´s modulus KW - Spherical indenter PY - 2000 DO - https://doi.org/10.1016/S0040-6090(00)01365-1 SN - 0040-6090 VL - 377-378 SP - 366 EP - 372 PB - Elsevier CY - Amsterdam AN - OPUS4-25573 LA - eng 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 - CHAP A1 - Herbst, Tristan A1 - Schneider, S. A1 - Beck, T. A1 - Flassenberg, G. T1 - Nachhaltigkeitsanalyse für das Mauerwerksrecycling PY - 2013 SN - 978-3-433-03017-2 SN - 978-3-433-60296-6 SN - 0170-4958 VL - 38 IS - Kap. 2.2.7 SP - 641 EP - 645 PB - Ernst & Sohn AN - OPUS4-28565 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - van der Kolk, G. J. A1 - Hurkmans, A. A1 - Trinh, T. A1 - Fleischer, W. A1 - Beck, Uwe A1 - Griepentrog, Michael T1 - Coating evaluation of decorative PVD finishes T2 - 41st Annual Technical Conference CY - Boston, MA, USA DA - 1998-04-18 PY - 1998 UR - http://www.knovel.com/web/portal/browse/display?_EXT_KNOVEL_DISPLAY_bookid=272 SN - 1-591-24158-8 SP - 44 EP - 45 PB - Society of Vacuum Coaters CY - Albuquerque AN - OPUS4-607 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Klingelhöffer, Hellmuth A1 - Affeldt, E. E. A1 - Bache, M. A1 - Bartsch, M. A1 - Beck, T. A1 - Christ, H. J. A1 - Fedelich, Bernard A1 - Hähner, P. A1 - Holdsworth, S. R. A1 - Lang, K.-H. A1 - McGaw, M. A1 - Olbricht, Jürgen A1 - Remy, L. A1 - Skrotzki, Birgit A1 - Stekovich, S. T1 - Editorial - Special issue: Recent developments in thermo-mechanical fatigue N2 - Components in the Aerospace, Power and Automotive engineering sectors are frequently subjected to cyclic stresses induced by thermal fluctuations and mechanical loads. For the design of such components, reliable material property data are required which need to be acquired using well accepted and reproducible test procedures for thermo-mechanical fatigue (TMF) loading. There is limited availability of proven TMF data indicating there is need for further research and testing. The TMF behaviour of materials is often desired to be simulated in models which describe the cyclic stress-strain behaviour, the fatigue life and the cyclic crack growth behaviour. There is a continuous need for the development and amendment of such models. Models can be validated by using materials in industrial applications which are subjected to TMF loading. The 3rd Workshop on Thermo-Mechanical Fatigue was held on 27–29 April 2016 at BAM, Berlin, Germany. The workshop was attended by 90 attendees coming from 17 countries in the world. 38 presentations including five poster presentations were held. The following topics were covered by the workshop: – TMF of materials coated with Thermal Barrier Coatings. – Thermal Gradient Mechanical Fatigue. – TMF crack growth. – TMF + High Cycle Fatigue. – TMF Modelling and Lifetime Prediction. – TMF Properties of steels, cast iron, Al-, Mg- and Ni-alloys – Advanced TMF Testing Techniques. – Industrial Applications. A panel discussion was held regarding the present state of TMF testing standards (ISO and ASTM) and their potential for improvement. The discussion and contributions were summarized and forwarded to the standard committees. The 3rd TMF-Workshop ensured the continuation of international exchange of knowledge providing a forum to present and discuss all recent developments in the field of thermo-mechanical fatigue. The current special issue publishes eleven selected papers of the 3rd TMF-Workshop 2016. The papers were peer reviewed by a number of experts in the Thermo-Mechanical Fatigue sector. I hope you will enjoy reading papers of this special issue. T2 - 3rd International Workshop on Thermo-Mechanical Fatigue (TMF-Workshop 2016) CY - Berlin, Germany DA - 27.04.2016 KW - Fatigue damage KW - Thermo-mechanical fatigue KW - Fatigue life time KW - Life time prediction KW - TMF PY - 2017 DO - https://doi.org/10.1016/j.ijfatigue.2017.02.002 SN - 0142-1123 VL - 99 IS - 2 SP - 215 PB - Elsevier CY - Oxford AN - OPUS4-40895 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Ganose, Alex M. A1 - Sahasrabuddhe, Hrushikesh A1 - Asta, Mark A1 - Beck, Kevin A1 - Biswas, Tathagata A1 - Bonkowski, Alexander A1 - Bustamante, Joana A1 - Chen, Xin A1 - Chiang, Yuan A1 - Chrzan, Daryl C. A1 - Clary, Jacob A1 - Cohen, Orion A. A1 - Ertural, Christina A1 - Gallant, Max C. A1 - George, Janine A1 - Gerits, Sophie A1 - Goodall, Rhys E. A. A1 - Guha, Rishabh D. A1 - Hautier, Geoffroy A1 - Horton, Matthew A1 - Inizan, T. J. A1 - Kaplan, Aaron D. A1 - Kingsbury, Ryan S. A1 - Kuner, Matthew C. A1 - Li, Bryant A1 - Linn, Xavier A1 - McDermott, Matthew J. A1 - Mohanakrishnan, Rohith Srinivaas A1 - Naik, Aakash A. A1 - Neaton, Jeffrey B. A1 - Parmar, Shehan M. A1 - Persson, Kristin A. A1 - Petretto, Guido A1 - Purcell, Thomas A. R. A1 - Ricci, Francesco A1 - Rich, Benjamin A1 - Riebesell, Janosh A1 - Rignanese, Gian-Marco A1 - Rosen, Andrew S. A1 - Scheffler, Matthias A1 - Schmidt, Jonathan A1 - Shen, Jimmy-Xuan A1 - Sobolev, Andrei A1 - Sundararaman, Ravishankar A1 - Tezak, Cooper A1 - Trinquet, Victor A1 - Varley, Joel B. A1 - Vigil-Fowler, Derek A1 - Wang, Duo A1 - Waroquiers, David A1 - Wen, Mingjian A1 - Yang, Han A1 - Zheng, Hui A1 - Zheng, Jiongzhi A1 - Zhu, Zhuoying A1 - Jain, Anubhav T1 - Atomate2: Modular workflows for materials science N2 - High-throughput density functional theory (DFT) calculations have become a vital element of computational materials science, enabling materials screening, property database generation, and training of “universal” machine learning models. While several software frameworks have emerged to support these computational efforts, new developments such as machine learned force fields have increased demands for more flexible and programmable workflow solutions. This manuscript introduces atomate2, a comprehensive evolution of our original atomate framework, designed to address existing limitations in computational materials research infrastructure. Key features include the support for multiple electronic structure packages and interoperability between them, along with generalizable workflows that can be written in an abstract form irrespective of the DFT package or machine learning force field used within them. Our hope is that atomate2's improved usability and extensibility can reduce technical barriers for high-throughput research workflows and facilitate the rapid adoption of emerging methods in computational material science. KW - Automation KW - Materials design KW - DFT workflows KW - Phonons KW - Thermal conductivity KW - Bonding analysis PY - 2025 UR - https://nbn-resolving.org/urn:nbn:de:kobv:b43-635759 DO - https://doi.org/10.1039/d5dd00019j SN - 2635-098X SP - 1 EP - 30 PB - Royal Society of Chemistry (RSC) CY - Cambridge AN - OPUS4-63575 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - GEN A1 - Ganose, Alex M. A1 - Sahasrabuddhe, Hrushikesh A1 - Asta, Mark A1 - Beck, Kevin A1 - Biswas, Tathagata A1 - Bonkowski, Alexander A1 - Bustamante, Joana A1 - Chen, Xin A1 - Chiang, Yuan A1 - Chrzan, Daryl C. A1 - Clary, Jacob A1 - Cohen, Orion A. A1 - Ertural, Christina A1 - Gallant, Max C. A1 - George, Janine A1 - Gerits, Sophie A1 - Goodall, Rhys E. A. A1 - Guha, Rishabh D. A1 - Hautier, Geoffroy A1 - Horton, Matthew A1 - Inizan, T. J. A1 - Kaplan, Aaron D. A1 - Kingsbury, Ryan S. A1 - Kuner, Matthew C. A1 - Li, Bryant A1 - Linn, Xavier A1 - McDermott, Matthew J. A1 - Mohanakrishnan, Rohith Srinivaas A1 - Naik, Aakash A. A1 - Neaton, Jeffrey B. A1 - Parmar, Shehan M. A1 - Persson, Kristin A. A1 - Petretto, Guido A1 - Purcell, Thomas A. R. A1 - Ricci, Francesco A1 - Rich, Benjamin A1 - Riebesell, Janosh A1 - Rignanese, Gian-Marco A1 - Rosen, Andrew S. A1 - Scheffler, Matthias A1 - Schmidt, Jonathan A1 - Shen, Jimmy-Xuan A1 - Sobolev, Andrei A1 - Sundararaman, Ravishankar A1 - Tezak, Cooper A1 - Trinquet, Victor A1 - Varley, Joel B. A1 - Vigil-Fowler, Derek A1 - Wang, Duo A1 - Waroquiers, David A1 - Wen, Mingjian A1 - Yang, Han A1 - Zheng, Hui A1 - Zheng, Jiongzhi A1 - Zhu, Zhuoying A1 - Jain, Anubhav T1 - Correction: Atomate2: Modular workflows for materials science N2 - Correction for “Atomate2: modular workflows for materials science” by Alex M. Ganose et al., Digital Discovery, 2025, 4, 1944–1973, https://doi.org/10.1039/D5DD00019J. PY - 2025 UR - https://nbn-resolving.org/urn:nbn:de:kobv:b43-640297 DO - https://doi.org/10.1039/d5dd90036k SN - 2635-098X SP - 1 EP - 2 PB - Royal Society of Chemistry (RSC) CY - Cambridge AN - OPUS4-64029 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Juds, Carmen A1 - Schmidt, J. A1 - Weller, Michael G. A1 - Lange, Thorid A1 - Beck, Uwe A1 - Conrad, T. A1 - Boerner, H. G. T1 - Combining phage display and next-generation sequencing for materials sciences: A case study on probing polypropylene surfaces N2 - Phage display biopanning with Illumina next-generation sequencing (NGS) is applied to reveal insights into peptide-based adhesion domains for polypropylene (PP). One biopanning round followed by NGS selects robust PP-binding peptides that are not evident by Sanger sequencing. NGS provides a significant statistical base that enables motif analysis, statistics on positional residue depletion/enrichment, and data analysis to suppress false-positive sequences from amplification bias. The selected sequences are employed as water-based primers for PP-metal adhesion to condition PP surfaces and increase adhesive strength by 100% relative to nonprimed PP. KW - Polymers KW - Polypropylene KW - Glue KW - Plastics KW - Surface Activation KW - Primer KW - Peptide Library KW - Epoxy KW - Solid-binding Peptides KW - Functionalization KW - Polymer-binding Peptides KW - Adhesion KW - Material-binding Peptides KW - Adhesives PY - 2020 DO - https://doi.org/10.1021/jacs.0c03482 SN - 0002-7863 SN - 1520-5126 VL - 142 IS - 24 SP - 10624 EP - 10628 PB - ACS CY - Washington, DC, USA AN - OPUS4-51123 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 N2 - In Germany, construction debris, road construction waste and excavated material amount to 60% of the total waste. The construction debris originates mainly from Building demolition and comprises of concrete and different types of masonry such as red brick, lime-sandstone, aerated concrete and lightweight concrete, but also other materials such as insulation material, gypsum, plaster, tiles, wood, Steel and plastics. Due to the large amount of building demolition material, the recycling of masonry to high-quality Recycling Products and closed-loop-recycling bears a high potential to reduce environmental impacts. Within the AiF (German Federation of Industrial Research Association) research Project “Sustainability Assessment for the Recycling of Masonry”, different recycling Technologies will be assessed with regard to their sustainability performance. All three pillars of sustainability - the ecological, the economic and the social pillar - will be considered, using the methods of Life Cycle Assessment (LCA), Life Cycle Costing (LCC) and Life Cycle Working Environment (LCWE). The assessment will be carried out for different Recycling technologies, for common ones but also for such technologies that are not yet in large scale application. The applicability of technologies depends on the type of the demolition material and on the purity of variety. One part of the research project is to develop a web-based tool for operators of recycling facilities and for demolition Companies to assess their recycling options. In most cases, demolished masonry has a very heterogeneous material composition, and therefore can only be used for lower-level recycling options or ends up in landfill. The aim of the project is to avoid landfilling and the downcycling of products and to achieve a higher recycling level. Closed-loop-recycling has priority. The main aspects of closed-loop-recycling are to change not the inherent properties of the recycled material and to recycle into the same or other product Systems. In the course of this, it is important to preserve the quality of the recycling material and to ensure a versatile use. To reach this target, different recycling technologies are identified and with the aid of the mentioned methods - LCA, LCC and LCWE - evaluated. In addition to predefined Processing routes, it is possible to assess individual recycling plants. A basic recyclingprinciple is defined to which further System modules can be added. The web-tool enables the user to identify different options - depending on the demolition material and its purity - and yields the sustainability assessment. Thus, the user gets Information about possibilities of the recycling of masonry and the environmental, economic and social Benefits compared to downcycling and landfill. T2 - SAM-6 - 6th International conference on society & materials CY - Leuven, Belgium DA - 30.05.2012 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 - 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 DO - 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 - JOUR A1 - Beck, Uwe A1 - Smith, D.T. A1 - Reiners, Georg A1 - Dapkunas, S.J. T1 - Mechanical properties of SiO2 and Si3N4 coatings: a BAM/NIST co-operative project N2 - Mechanical properties, i.e. hardness and elastic modulus, of amorphous SiO2 and Si3N4 PE-CVD coatings have been studied for two coating thicknesses (0.1 and 1.0 µm) and two substrate materials (fused silica, i.e. Herasil, and borosilicate glass, i.e., BK7) using low load instrumented indentation. The coating systems are being considered for possible use as reference materials for thin film mechanical property test methods. Single layers of SiO2 and Si3N4 and a multilayer stack consisting of five double layers of SiO2/Si3N4 (individual layer thickness: 0.1 µm) were investigated on both substrate materials. A special plasma pre-treatment of the substrates prior to deposition ensured that coating adhesion exceeded inner film stress for all systems considered. The applied indentation load ranged from 700 down to 0.1 mN and resulted in indentation depths from more than 1 µm to about 15 nm. The influence of coating thickness and the effect of the substrate on the measurement of hardness and elastic modulus of the films are discussed, with emphasis on the effects of indentation depth vs. coating thickness on the observed coating properties. One coating–substrate system (1.0 µm Si3N4 on Herasil) out of ten was found to be above a critical threshold for tensile cracking of the coating. In this system, termed ‘overcritical’, tensile cracks occurred both prior to, and as a result of, indentation, indicating that Berkovich indentation may also be used to probe residual film stress. KW - Indentation KW - Hardness KW - Modulus KW - Silica KW - Silicon nitride KW - Coatings KW - Thin films PY - 1998 DO - https://doi.org/10.1016/S0040-6090(98)00989-4 SN - 0040-6090 VL - 332 IS - 1-2 SP - 164 EP - 171 PB - Elsevier CY - Amsterdam AN - OPUS4-25443 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER -