TY - CONF A1 - Eckhardt, Dietrich T1 - 4. SprengÄnderungsGesetz T2 - Informationsveranstaltung Sprengstoff und Pyrotechnik, BAM CY - Berlin, Germany DA - 2009-05-04 PY - 2009 AN - OPUS4-19267 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Müller, Christina T1 - 3rd European-American Workshop on Reliability of NDE and Demining T2 - NDRF Summer Conference 2002 CY - Rosersberg, Sweden DA - 2002-08-28 PY - 2002 AN - OPUS4-3276 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Niederleithinger, Ernst T1 - 3G - Geophysical Methods Delivering Input to Geostatistical Methods for Geotechnical Site Characterization T2 - Fifth International Symposium on Geotechnical Safety and Risk (ISGSR) CY - Rotterdam, Netherlands DA - 2015-10-13 PY - 2015 AN - OPUS4-34427 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Molnarne, Maria A1 - Viczián, G. A1 - Heszberger, J. A1 - Kollár-Hunek, K. T1 - 3D-Visualization of T or P dependence in explosion surfaces T2 - Workshop on chemical engineering mathematics CY - Bad Honnef, Germany DA - 2001-08-12 PY - 2001 AN - OPUS4-3256 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Kohl, Christoph A1 - Krause, Martin A1 - Maierhofer, Christiane A1 - Mayer, K. A1 - Wöstmann, Jens A1 - Wiggenhauser, Herbert T1 - 3D-Visualisation of NDT-Data using Data Fusion Technique T2 - International Symposium Non-Destructive Testing in Civil Engineering 2003 (NDT-CE 2003) CY - Berlin, Germany DA - 2003-09-16 PY - 2003 AN - OPUS4-3255 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Gründer, Klaus-Peter A1 - Kadoke, Daniel T1 - 3D-Verschiebungsmessung in großem Messvolumen N2 - Kameragestützte 3D-Verformungsmessung an einem 24 m langen Brückendemonstrator. Bestimmung der lastabhängigen, mittig gestützten Biegelinie als Vektorverschiebungsfeld. T2 - Tag der offenen Tür CY - BAM TTS, Horstwalde, Germany DA - 29.09.2018 KW - Brückendemonstrator KW - 3D-Verformungsmessung KW - Koordinatenmessung KW - Verschiebungsfeld PY - 2018 AN - OPUS4-46499 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Gründer, Klaus-Peter T1 - 3D-Verfahren zur Verformungsmessung an Materialien und Bauteilen T2 - Werkstofftechnisches Kolloquium Mess- und Kalibriertechnik CY - Darmstadt, Germany DA - 2011-09-29 PY - 2011 AN - OPUS4-24576 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Krankenhagen, Rainer A1 - Jonietz, Florian A1 - Noack, M. A1 - Gensecke, K. A1 - Wiedenmann, E. T1 - 3D-Scannen mit integrierter thermografischer Qualitätsprüfung N2 - Sowohl die 3D-Formbestimmung als auch die Thermografie sind Verfahren der Qualitätssicherung. Im vorgestellten Projekt wird versucht, die beiden Methoden zusammenzuführen. Das Prinzip des für die Formbestimmung verwendeten 3D-Scanners beruht auf dem bereits bekannten Verfahren der Streifenlichtprojektion. Die Neuartigkeit des hier verwendeten 3D-Scanners besteht darin, dass nicht im sichtbaren, sondern im infraroten Spektralbereich gearbeitet wird. Dadurch wird es möglich, nicht die Reflexion, sondern die Wärmestrahlung des Prüfobjektes nach Absorption der eingebrachten Strahlung auszuwerten. Dies ermöglicht erstmals, transparente und stark absorbierende Oberflächen zu erfassen. Die Anregung mit Wärmestrahlung stellt das Bindeglied zum Verfahren der aktiven Thermografie für die Detektion verdeckter Schäden dar. Bei letzterem Verfahren wird der Wärmestau über Defekten beim Eindringen der Wärme in die Tiefe des Materials gemessen. Dabei stellen Defekte eine Störung des 3D-Scan-Verfahrens dar, während umgekehrt unregelmäßig geformte Oberflächen das thermografische Verfahren erschweren, d.h. der Messeffekt eines der Verfahren ist ein Störeffekt für das jeweils andere Verfahren. Es wird zum einen der Frage nachgegangen, inwieweit das 3D-Scan-Verfahren durch verdeckte Defekte beeinträchtigt wird, und zum anderen die Möglichkeit untersucht, den vorhandenen 3D-Scanner auch für die aktive Thermografie einzusetzen. Vor allem wurden CFK-Proben mit künstlich eingebrachten Defekten untersucht. Es werden die Möglichkeiten und Grenzen der vorhandenen Messapparatur für die Defekterkennung aufgezeigt. T2 - 3D-NordOst 2017 CY - Berlin, Germany DA - 7.12.2017 KW - Streifenprojektion KW - Zerstörungsrfreie Prüfung KW - Thermographic testing KW - 3D-Scanner PY - 2017 AN - OPUS4-43358 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Krause, Martin A1 - Effner, Ute A1 - Müller, Sabine A1 - Nowak, Thomas Rudolf A1 - Vergin, Dirk A1 - Mayer, K. A1 - Chinta, P.K. T1 - 3D-SAFT Imaging von Streuern in Brettschichtholz T2 - DGZfP Jahrestagung CY - Dresden, Germany DA - 2013-05-06 PY - 2013 AN - OPUS4-29292 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Zocca, Andrea A1 - Günster, Jens A1 - Wirth, Cynthia A1 - Staude, Andreas A1 - Colombo, P. A1 - Bernardo, E. T1 - 3D-Printing of Porous Polymer-Derived Ceramics T2 - 37th International Conference and Exposition on Advanced Ceramics and Composites CY - Daytona Beach, FL, USA DA - 2013-01-27 PY - 2013 N1 - Geburtsname von Wirth, Cynthia: Gomes, C. M. - Birth name of Wirth, Cynthia: Gomes, C. M. AN - OPUS4-27977 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Maierhofer, Christiane A1 - Mecke, R. A1 - Kalisch, U. A1 - Groll, T. A1 - Arnold, T. T1 - 3D-Kartierung von Schäden in historischen Bauwerken mit thermografischen, optischen und Ultraschall-Verfahren T2 - 128. Sitzung des DGZfP-Arbeitskreises Zwickau-Chemnitz CY - Stuttgart, Germany DA - 2015-10-06 PY - 2015 AN - OPUS4-34416 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Pelkner, Matthias A1 - Blome, Mark A1 - Reimund, Verena A1 - Thomas, Hans-Martin T1 - 3D-GMR-Messungen an Referenzbauteilen und Rekonstruktion von Rissgeometrien T2 - DGZfP-Jahrestagung 2010 CY - Erfurt, Germany DA - 2010-05-10 PY - 2010 AN - OPUS4-21759 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Bartholmai, Matthias A1 - Johann, Sergej A1 - Wu, Cheng-Chieh A1 - Gründer, Klaus-Peter A1 - Kadoke, Daniel T1 - 3D-Gestalts- und -Verformungsmessung - Anwendungsbeispiele N2 - Der Fokus des Arbeitsfelds ist die messtechnisch fundierte Anwendung der 3D-Verfahrenskombination zur Lösung vielfältiger Messaufgaben mit optimaler Datenqualität für interne und externe Kunden. Das setzt insbesondere eine jeweils problembezogene Messmethodik voraus. Dazu setzen wir kameragestützte 3D-Koordinatenmessverfahren ein, die auf dem fotogrammetrischen Prinzip der Bildtriangulation beruhen. Darunter fallen folgende miteinander flexibel kombinierbare Verfahrensmodifikationen: Mehrbildfotogrammetrie, Messadapter für Geometriemerkmale, Streifenprojektionsverfahren, statische bis hochdynamische Stereofotogrammetrie auf Punktebasis oder aufgabenangepasster Oberflächenmuster und mechanisch-optische Taster. T2 - 5th International Conference on Smart Monitoring, Assessment and Rehabilitation of Civil Structures (SMAR 2019) CY - Potsdam, Germany DA - 27.08.2019 KW - 3D-Verformungsmessung KW - Koordinatenmessung KW - Verschiebungsfeld PY - 2019 AN - OPUS4-48791 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Jonietz, Florian A1 - Krankenhagen, Rainer A1 - Noack, M. A1 - Gensecke, K. A1 - Wiedenmann, E. T1 - 3D-Formbestimmung mit integrierter thermografischer Qualitätsprüfung N2 - Sowohl die 3D-Formbestimmung als auch die Thermografie sind Verfahren der Qualitätssicherung. Im vorgestellten Projekt wird versucht, die beiden Methoden zusammenzuführen. Das Prinzip des für die Formbestimmung verwendeten 3D-Scanners beruht auf dem bereits bekannten Verfahren der Streifenlichtprojektion. Die Neuartigkeit des hier verwendeten 3D-Scanners besteht darin, dass nicht im sichtbaren, sondern im infraroten Spektralbereich gearbeitet wird. Dadurch wird es möglich, nicht die Reflexion, sondern die Wärmestrahlung des Prüfobjektes nach Absorption der eingebrachten Strahlung auszuwerten. Dies ermöglicht, auch optisch „nicht-kooperative“ Oberflächen zu erfassen. Die Anregung mit Wärmestrahlung stellt das Bindeglied zum Verfahren der aktiven Thermografie für die Detektion verdeckter Schäden dar. Bei letzterem Verfahren wird der Wärmestau über Defekten beim Eindringen der Wärme in die Tiefe des Materials gemessen. Dabei stellen Defekte eine Störung des 3D-Scan-Verfahrens dar, während umgekehrt unregelmäßig geformte Oberflächen das thermografische Verfahren erschweren, d.h. der Messeffekt eines der Verfahren ist ein Störeffekt für das jeweils andere Verfahren. Es wird zum einen der Frage nachgegangen, inwieweit das 3D-Scan-Verfahren durch verdeckte thermische Defekte beeinträchtigt wird, und zum anderen die Möglichkeit untersucht, den vorhandenen 3D-Scanner auch für die aktive Thermografie einzusetzen. Es werden CFK-Proben mit künstlich eingebrachten thermischen Defekten untersucht und die Möglichkeiten und Grenzen der vorhandenen Messapparatur für die Defekterkennung aufgezeigt. T2 - DGZfP-Jahrestagung 2017 CY - Koblenz, Germany DA - 22.05.2017 KW - 3D-Formbestimmung KW - Thermografische Qualitätsprüfung KW - Streifenlichtprojektion KW - 3D-Scanner KW - Aktive Thermografie PY - 2017 AN - OPUS4-40787 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 - Kühnel, Alena A1 - Stelzner, Ludwig A1 - Weise, Frank T1 - 3D-Ansprache von Betonfahrbahndeckentexturen N2 - Die Oberflächentexturierung der Betonfahrbahndecken mittels Grinding und Grooving steht seit einigen Jahren im Mittelpunkt der Forschung und Entwicklung des Betonstraßenbaus in Deutschland. In den vergangenen Jahren wurden die vorteilhaften Oberflächenperformances derartiger Texturen, wie z.B. Griffigkeit, Ebenheit, Lärmminderung, in zahlreichen Forschungsprojekten umfassend untersucht. Im Kontext des gegenwärtig verfolgten ganzheitlichen performanceorientierten Ansatzes liegt der Fokus nun verstärkt auf der Analyse und Charakterisierung der Oberflächentopografie von Grinding- bzw. Groovingtexturen. Insbesondere gilt ein Hauptaugenmerk hierbei der zeitlichen Entwicklung der Oberflächentexturen in Abhängigkeit von äußeren Einwirkungen durch Klima und Verkehr. Im Rahmen eines von der Bundesanstalt für Straßenwesen (BASt) geförderten Forschungsvorhabens wurden zunächst die messtechnischen Voraussetzungen für eine hochaufgelöste dreidimensionale Erfassung der Oberflächentopografie von Grinding- und Groovingtexturen in situ geschaffen. Das schließt auch die Entwicklung einer Messanordnung, die eine Wiederholbarkeit der 3D-Messungen gewährleistet und somit die Erfassung der zeitlichen Texturveränderungen ermöglicht. Basierend darauf wurden Auswerteroutinen zur qualitativen und quantitativen Beschreibung der Oberflächentexturen und deren Veränderungen entwickelt und angewandt. Anschließend wurde der Zustand von Grinding- und Groovingtexturen an ausgewählten Praxisstrecken in definierten Zeitintervallen erfasst. Unter Verwendung der erarbeiteten Auswerteroutinen wurden die erfassten Oberflächen analysiert und repräsentative Texturkennwerte abgeleitet. T2 - Forschungskolloquium Betonstraßenbau CY - Dresden, Germany DA - 19.01.2023 KW - Betonfahbahndeckentexturen KW - Grinding KW - 3D-Laserscanning KW - Datenanalyse KW - Grooving PY - 2023 AN - OPUS4-56896 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Redmer, Bernhard A1 - Tschaikner, Martin A1 - Hohendorf, Stefan A1 - Ewert, Uwe A1 - Deresch, A. A1 - Bellon, Carsten T1 - 3D- X-Ray high Energy Testing of Large Objects with Specialized Manipulation Trajectories N2 - High-energy radiography is traditionally used for the detection of defects in thick-walled, bulky components. It is also used for testing the integrity of components for civil and security-related applications, e.g. containers. The combination of high-energy sources with digital detector arrays or line cameras allows carrying out the tests either in a shorter time compared to film technique, or with higher contrast sensitivity. The high-energy X-ray laboratory "HEXYLab" at BAM is a joint laboratory in which future users, manufacturers and scientists collaborate to initiate and develop joint development projects. The new universal manipulation system “HEXYTech” provides the engineering and technical base for meeting different requirements within HEXYLab. Different types of trajectories for tube, object and detector can be programmed with a total of 13 rotational and linear axes. In particular, large objects with complex geometries can be examined. Measurements can be acquired as 2D images via standard radiography as well as 3D volumes from laminography or computed tomography reconstructions. The general rules for the application of high-energy radiography with digital detectors (imaging plates, digital detector arrays) were determined within the framework of the European project "HEDRad" (High Energy Digital Radiography) and added to the standard DIN EN ISO 17636-2. The paper gives an overview of the test technique and introduces several applications on the basis of experiments and reconstructed 3D- images. T2 - 19th World Conference on Non-Destructive Testing 2016 CY - Munich, Germany DA - 13.06.2016 KW - Rekonstruktion KW - Hochenergie-Radiograohie KW - Computer-Tomografie KW - Laminographie KW - große Objekte KW - High-energy radiography KW - Digital detectors KW - Computed laminography KW - Thick-walled test objects KW - 3D-reconstruction PY - 2016 AN - OPUS4-37991 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Mishurova, Tatiana T1 - 3D X-ray Imaging and residual stress analysis of materials N2 - The focus of the presentation focus will be on 3D imaging by means of X-ray Computed Tomography (XCT) at the lab and at synchrotron, and the non-destructive residual stress (RS) characterization by diffraction of different kind of materials in FB8.5 Micro-NDT BAM. For instance, the manufacturing defects and high RS are inherent of additively manufacturing techniques and affect structural integrity of the components. Using XCT the defects size and shape distribution as well as geometrical deviations can be characterized, allowing the further optimization of the manufacturing process. Diffraction-based RS analysis methods using neutron and synchrotron X-rays at large scale facilities offer the possibility to non-destructively spatially resolve both surface and bulk RS in complex components and track their changes following applied thermal or mechanical loads. T2 - Seminar at Applied Materials Group at PSI CY - Villigen, Switzerland DA - 13.09.2023 KW - Additive manufacturing KW - Residual stress KW - X-ray computed tomography PY - 2023 AN - OPUS4-58310 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Hentschel, Manfred P. T1 - 3D Synchrotron Refraction Computed Tomography T2 - Aerospace Testing EXPO 2005, BAM Messestand CY - Hamburg, Germany DA - 2005-04-05 PY - 2005 AN - OPUS4-11749 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Müller, Bernd R. A1 - Lange, Axel A1 - Harwardt, Michael A1 - Hentschel, Manfred P. T1 - 3D synchrotron refraction and sub-micrometer computed tomography at BAMline T2 - Industrieforum "Bildgebende Röntgenverfahren neue Einblicke in kleinste Strukturen" CY - Karlsruhe, Germany DA - 2006-11-17 PY - 2006 AN - OPUS4-15467 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Hemmleb, M. A1 - Bettge, Dirk A1 - Berger, D. A1 - Driehorst, I. T1 - 3D surface reconstruction with segmented BSE detector: New improvements and application for fracture analysis in SEM N2 - Application of 4Q-BSE detector and dedicated software enables 3D surface measurements of fracture samples in SEM. 3D surface measurement is independent from magnification and material invariant. Quantitative height measurements require careful detector adjustment and system calibration. Live 3D view allows a fast assessment of topographical features. In addition to SE and BSE imaging, 3D surface data help to analyse and interpret fracture samples. T2 - European Microscopy Congress 2016 CY - Lyon, France DA - 28.08.2016 KW - Topography KW - SEM KW - 3D analysis KW - Fractography PY - 2016 AN - OPUS4-38456 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Ledworuski, Siegmar T1 - 3D strain field measurement of Ni-based alloys at high temperature T2 - Anwendertreffen "Optical deformation measurement in material testing and conceptual design" CY - Braunschweig, Germany DA - 2001-09-17 PY - 2001 AN - OPUS4-3254 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Mishurova, Tatiana A1 - Thiede, Tobias A1 - Evsevleev, Sergei A1 - Serrano Munoz, Itziar A1 - Gollwitzer, Christian A1 - Bruno, Giovanni T1 - 3D Shape Analysis of Powder for Laser Beam Melting by Synchrotron X-ray CT N2 - The quality of components made by laser beam melting (LBM) additive manufacturing is naturally influenced by the quality of the powder bed. A packing density < 1 and porosity inside the powder particles lead to intrinsic voids in the powder bed. Since the packing density is determined by the particle size and shape distribution, the determination of these properties is of significant interest to assess the printing process. In this work, the size and shape distribution, the amount of particle’s intrinsic porosity as well as the packing density of micrometric powder used for LBM have been investigated by means of synchrotron X-ray computed tomography (CT). Two different powder batches were investigated: Ti-6Al-4V produced by plasma atomization and Stainless Steel 316L produced by gas atomization. Plasma atomization particles were observed to be more spherical in terms of the mean anisotropy compared to particles produced by gas atomization. The two kinds of particles are comparable in size according to the equivalent diameter. The packing density is lower (i.e. the powder bed contains more voids in between particles) for the Ti-6Al-4V particles. The comparison of the tomographic results with laser diffraction, as another particle size measurements techniques, proved agreement. T2 - User Meeting HZB 2018 CY - Berlin, BESSY II DA - 06.12.2018 KW - BAMline KW - Computed tomography KW - Laser beam melting KW - Powder PY - 2018 AN - OPUS4-46933 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Lay, Vera A1 - Buske, S. A1 - Kleine, F. A1 - Townend, J. A1 - Kellett, R. A1 - Savage, M. A1 - Schmitt, D. R. A1 - Constantinou, A. A1 - Eccles, J. A1 - Lawton, D. A1 - Bertram, M. A1 - Hall, K. A1 - Kofman, R. A1 - Gorman, A. T1 - 3D seismic imaging of the Alpine Fault and the glacial valley at Whataroa, New Zealand N2 - The Alpine Fault at the West Coast of the South Island (New Zealand) is a major plate boundary that is expected to rupture in the next 50 years, likely as a magnitude 8 earthquake. The Deep Fault Drilling Project (DFDP) aimed to deliver insight into the geological structure of this fault zone and its evolution by drilling and sampling the Alpine Fault at depth. Here we present results from a seismic survey around the DFDP-2 drill site in the Whataroa Valley where the drillhole almost reached the fault plane. This unique 3D seismic survey includes several 2D lines and a 3D array at the surface as well as borehole recordings. Within the borehole, the unique option to compare two measurement systems is used: conventional three-component borehole geophones and a fibre optic cable (heterodyne Distributed Vibration Sensing system (hDVS)). Both systems show coherent signals but only the hDVS system allowed a recording along the complete length of the borehole. Despite the challenging conditions for seismic imaging within a glacial valley filled with sediments and steeply dipping valley flanks, several structures related to the valley itself as well as the tectonic fault system are imaged. The pre-processing of the seismic data also includes wavefield separation for the zero-offset borehole data. Seismic images are obtained by prestack depth migration approaches. Within the glacial valley, particularly steep valley flanks are imaged directly and correlate well with results from the P-wave velocity model obtained by first arrival travel-time tomography. Additionally, a glacially over-deepened trough with nearly horizontally layered sediments is identified about 0.5 km south of the DFDP-2B borehole. With regard to the expected Alpine fault zone, a set of several reflectors dipping 40-56° to the southeast are identified in a ~600 m wide zone between depths of 0.2 and 1.2 km that is interpreted to be the minimum extent of the damage zone. Different approaches image one distinct reflector dipping at 40°, which is interpreted to be the main Alpine Fault reflector. This reflector is only ~100 m ahead from the lower end of the borehole. At shallower depths (z<0.5 km), additional reflectors are identified as fault segments and generally have steeper dips up to 56°. About 1 km south of the drill site, a major fault is identified at a depth of 0.1-0.5 km that might be caused by the regional tectonics interacting with local valley structures. A good correlation is observed among the separate seismic data sets and with geological results such as the borehole stratigraphy and the expected surface trace of the fault. In conclusion, several structural details of the fault zone and its environment are seismically imaged and show the complexity of the Alpine Fault at the Whataroa Valley. Thus, a detailed seismic characterization clarifies the subsurface structures, which is crucial to understand the transpressive fault’s tectonic processes. T2 - EGU 2021 General Assembly CY - Online meeting DA - 19.04.2021 KW - Imaging KW - Signal processing KW - Seismic KW - Borehole KW - DAS PY - 2021 AN - OPUS4-52614 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Maack, Stefan A1 - Spies, M. A1 - Hillemeier, B. T1 - 3D Schallfeldcharakterisierung niederfrequenter Ultraschall-Prüfköpfe in Beton - Experimentelle Untersuchungen und Simulation T2 - DGZfP Jahrestagung 2011 CY - Bremen, Germany DA - 2011-05-30 PY - 2011 AN - OPUS4-24765 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Maierhofer, Christiane A1 - Müller, Jan A1 - Götschel, S. A1 - Weiser, M. T1 - 3D Rekonstruktionsverfahren für die aktive Thermografie N2 - Aktive Thermografie wird zunehmend für die zerstörungsfreie Prüfung insbesondere von dünnwandigen Bauteilen eingesetzt. Neben der Ortung und der Bestimmung der lateralen Ausdehnung von Fehlstellen und Inhomogenität in der Ebene parallel zur Oberfläche sind in den Messdaten auch Informationen über die Tiefe bzw. Überdeckung von Fehlstellen enthalten. In der Vergangenheit wurden verschiedene analytische Ansätze zur Rekonstruktion dieser Tiefeninformationen umgesetzt: - Bestimmung der Blindfrequenz über die Phaseninformationen der Puls-Phasen-Thermografie - Bestimmung des Phasenkontrastes bei der Lockin Thermografie - Bestimmung der Fehlstellentiefe mittels Thermal Signal Reconstruction (TSR), d. h. aus dem doppeltlogarithmisch dargestellten zeitlichen Verlauf der Abkühlung nach impulsartiger Erwärmung Nachteil aller bisherigen analytischer Verfahren basierend auf eindimensionalen Modellen ist, dass der Einfluss lateraler Wärmeleitungseffekte nicht berücksichtigt wird. Dieser kann jedoch bei kleineren Fehlstellen nicht mehr vernachlässigt werden, wozu bisher jedoch nur teilempirische Ansätze realisiert wurden. Erst numerische Rekonstruktionsverfahren ermöglichen eine Rekonstruktion auch komplexerer Defektgeometrien unter Berücksichtigung lateraler Wärmeleitungsprozesse sowie anisotroper thermischer Materialeigenschaften. In diesem B eitrag werden die verschiedenen Ansätze in der 3D-Datenanalyse der aktiven Thermografie miteinander verglichen und die Möglichkeiten und Grenzen der Verfahren vorgestellt. T2 - Heidelberger Bildverarbeitungsfortum 2017 CY - Fürth, Germany DA - 07.03.2017 KW - Aktive Thermografie KW - 3D Rekonstruktion KW - Faserverbundwerkstoffe KW - Analytische Modelle KW - Numerische Modelle PY - 2017 AN - OPUS4-39301 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Ewers, Benjamin A1 - Lange, Axel A1 - Hentschel, Manfred P. A1 - Kupsch, Andreas T1 - 3D Rekonstruktion und Prüfung von Keramikbeschichtungen T2 - THz-Seminar CY - Braunschweig, Germany DA - 2009-02-04 PY - 2009 AN - OPUS4-19071 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Müller, Bernd R. A1 - Lange, Axel A1 - Harwardt, Michael A1 - Hentschel, Manfred P. A1 - Illerhaus, Bernhard A1 - Goebbels, Jürgen A1 - Bamberg, J. A1 - Heutling, F. T1 - 3D Refraction Computed Tomography Applied to Metal Matrix Composites T2 - 35th International SAMPE Technical Conference-2003 CY - Dayton, OH, USA DA - 2003-09-28 PY - 2003 AN - OPUS4-3253 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Agudo Jácome, Leonardo A1 - Pöthkow, K. A1 - Paetsch, O. A1 - Hege, H.-C. T1 - 3D reconstruction, visualization and quantification of dislocations from TEM stereo-pairs N2 - A wide range of properties in crystalline materials is affected by the presence of dislocations, the carriers of plastic deformation. Dislocations can be thought of as filiform structures, characterized by geometrical factors such as their Burgers vector, slip plane, length per unit volume (dislocation density) and line direction. In technical materials such as functional and structural alloys, as well as in minerals, the understanding of bulk deformation driven by dislocation activity is of paramount importance, and thus also the techniques that allow its characterization. Since decades, diffraction contrast in the transmission electron microscope (TEM) is widely implemented to image and describe two-dimensional (2D) projections of dislocation substructures in thin foils [1]. Recently, the use of electron tomography was applied for the first time to fully reconstruct a 3D dislocation network in a GaN epilayer [2]. Although this latter technique has gained popularity, it usually requires an elaborate experimental setup, as well as sophisticated image post-processing methods for a successful reconstruction. Stereoscopic methods in the TEM also have traditionally allowed the three-dimensional (3D) observation of dislocations [e. g. 3]. For this purpose, the same region of a TEM foil is imaged using the same diffraction vector with two beam directions slightly tilted from each other. Subsequently, the pair of images is observed with help of stereo-viewers or 3D glasses. Based on this principle, a system based on a special hardware and software combination was developed for segmentation and analysis of stereomicroscopy data in biological research, and it was also used to analyze simple dislocation structures [4]. In the present contribution a simple software tool is introduced, which has been developed to reconstruct, visualize and quantify dislocation substructures in the thicker regions of electron-transparent foils. A special focus is set on the use of scanning (S)TEM for its implementation. As depicted in Figure 1, the tool is based on the separate tracing of dislocation line segments on both images of a stereo-pair. The points 1, 2 and 3 are marked on the images viewed by the left and right eyes (Figures 1a and b, respectively), showing an relative displacement Δx on the superimposed images in the anaglyph of Figure 1c. This Δx is given by the point’s depth Δh and by the stereo-angle ϑ, as shown in Figure 1d. By knowing the beam direction for the left and right images (BL and BR, respectively), ϑ can be determined, and hence also Δh. Once the depth information from all traced nodes is gained, a reconstruction is made (Figure 1e) where the line length can directly be read from the tool’s interface. The setup is merely geometrical and only needs the relative tilt between both images, the direction of the tilt axis and the image calibration, thus allowing asymmetrical tilts with respect to the foil normal. The foil thickness is measured directly from the endings of the dislocations on the bottom and top surfaces of the TEM foil, and is determined as t ~ 370 nm for the region in Figure 1. With t, the volume is in Figure 1e is also known, and the total dislocation density of the region is calculated as ρt = 44.4 x 1012 m∙m-3. It is clear from Figure 1 that in the Ni-base superalloy presented here, the dislocation substructures are highly localized towards the interface between the two phases of which the microstructure is composed, γ and γ’ (labeled in Figure 1a). The reconstructed model allows a separation of the dislocation densities within the γ and the γ’ phases and at their interface, which would be rather difficult by using common methods such as the one proposed by Ham [5]. Thus the partial dislocation densities are measured as ργ = 1.7 x 1012 m∙m-3, ργ’ = 2.7 x 1012 m∙m-3 and ργ/γ’ = 40.0 x 1012 m∙m-3. The tool also incorporates the knowledge of the crystallographic positions at the two tilts to enable plotting the line segment orientations. One can chose to display the resulting line directions as an interactive table; as an additional spherical spatial graph, where all lines extend from the center of a sphere; as a 2D plot of the spherical coordinates θ and φ; or as points plotted on a stereographic projection. Thus, a simple software tool has been developed that allows the reconstruction, visualization and quantification of foil thickness, localized dislocation densities (or other filiform substructures) and orientations based on only one stereo-pair T2 - Microscopy and Microanalysis 2016 CY - Columbus, OH, USA DA - 24.06.2016 KW - Dislocation KW - Diffraction contrast KW - 3D reconstruction KW - Stereoscopy KW - Scanning transmission electron microscopy PY - 2016 AN - OPUS4-39278 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Agudo Jácome, Leonardo A1 - Pöthkow, K. A1 - Paetsch, O. A1 - Hege, H.-C. T1 - 3D Reconstruction, Visualization and Quantification of Dislocations from TEM Stereo-Pairs N2 - Dislocations, as carriers of plastic deformation, affect important properties in technical materials, e. g., plasticity. The realistic description of plastic deformation caused by dislocations demands the representative measurement of their features, e.g., line direction, slip plane, Burgers vector and density. Bulk deformation of structural and functional alloys requires reliable data from large regions. The filiform nature of dislocations interacting with complex microstructures additionally demands observation and analysis techniques that allow resolving the details of their interactions in space. The use of electron tomography for this purpose is bound to difficult and time consuming experimental setups, which are not always applicable to any material. In this contribution a new tool is presented, which enables the three-dimensional reconstruction, visualization and quantification of dislocation densities and directions from manual tracing of scanning transmission electron microscopy (STEM) stereo-pairs. Examples are shown from samples of a creep-deformed monocrystalline Ni-base superalloy. T2 - 3D Materials Science 2016 CY - St. Charles, Illinois, USA DA - 10.07.2016 KW - Dislocation KW - Scanning Transmission Electron Microscopy KW - 3D KW - Quantification KW - Superalloy PY - 2016 AN - OPUS4-42173 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Wollschläger, Nicole T1 - 3D reconstruction of thin porous TiO2 nano-particle films using focused ion beam technique N2 - The present talk serves the routine characterization of the porous structure of unordered anatase NP-fillings by screen printing. Therefore the Focused Ion Beam technique was used to cut a defined volume of material slice per slice of the given material. From each slice electron micrographs are recorded. The won stack of images is than further processed using binarization and segmentation to reconstruct either the mesh of particles or pores. From the calibrated length-scales in the scanning electron microscope it is possible to determine the particular volumes for pore and material. T2 - International Summer School: Nanoscience meets Metrology CY - Turin, Italy DA - 04.09.2016 KW - DSSC KW - Titanium dioxide KW - 3D reconstruction KW - Focused ion beam KW - Porosity PY - 2016 AN - OPUS4-38245 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Agudo Jácome, Leonardo A1 - Pöthkow, K. A1 - Paetsch, O. A1 - Hege, H.-C. T1 - 3D reconstruction and quantification of dislocation substructures from TEM stereo pairs N2 - Dislocations are the carriers of plastic deformation. As such, their characterization offers important information on the properties they affect. In this contribution, a new tool is presented, which is incorporated in Amira ZIB Edition and allows for three-dimensional (3D) imaging and quantification of dislocations substructures from thick regions an electron-transparent specimen. In the tool, the dislocation segments are traced on diffraction contrast images that are obtained in the transmission electron microscope (TEM). The uncertainties related to the experimental setup and to the proposed method are discussed on the base of a tilt series. T2 - AVIZO / AMIRA User Meeting CY - Berlin, Germany DA - 14.11.2018 KW - Dislocation KW - Diffraction contrast KW - Scanning transmission electron microscopy (STEM) PY - 2018 AN - OPUS4-47394 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Zinas, Orestis T1 - 3D Probabilistic Site Characterization N2 - The aim of the study is to infer the soil stratification from the provided CPT and borehole data. We infer the soil type at any location within the domain of interest from the SBT index Ic (Robertson, 2009). This index can be directly related to the CPT data through an empirical correlation model. In addition, the soil classes contained in the borehole logs can be expressed as bounds on Ic. A log-transformation was applied to Ic, Y = ln(Ic), and Y was modelled by a 3D Random Field, with a fully Bayesian hierarchical Gaussian Process model to explicitly capture uncertainties. T2 - 19th eawe PhD Seminar CY - Hannover, Germany DA - 06.09.2023 KW - Wind Energy KW - Site-characterization KW - Probabilistic PY - 2023 AN - OPUS4-58940 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Wirth, Cynthia A1 - Günster, Jens A1 - Coelho, D. A1 - Holtza, D. A1 - Bernardo, E. T1 - 3D Printing of Preceramic Polymers for Biomedical Applications T2 - Fraunhofer Direct Digital Manufacturing Converence 2014 CY - Berlin, Germany DA - 2014-03-12 PY - 2014 N1 - Geburtsname von Wirth, Cynthia: Gomes, C. M. - Birth name of Wirth, Cynthia: Gomes, C. M. AN - OPUS4-32491 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Bernardino, R. A1 - Wirth, Cynthia A1 - Hotza, D. T1 - 3D printing of fast-resorbable calcium alcali phosphate scaffolds using preceramic polymer as non-sacrificial binder T2 - 2nd CIRP Conference on Biomanufacturing CY - Manchester, UK DA - 2015-07-29 PY - 2015 AN - OPUS4-34666 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Blaeß, Carsten A1 - Wilbig, Janka A1 - Müller, Ralf A1 - Nawaz, Q. A1 - Boccaccini, A.R. T1 - 3D printing of crystallizing bioactive glasses N2 - Artificial bone replacement by individual customized three-dimensional resorbable bioactive glass has not yet been widely established in the clinical use. This is mainly due to the antagonism of sintering ability and suitable bioactivity. Competitive crystallization often prevents the generation of dense sintered bodies, especially for additive manufactured 3D structures. Previous studies of the fluoride-containing glass F3 have shown its potential to combine both sintering ability and suitable bioactivity. Furthermore, the occurring sintering blockade by surface crystallization of Na2CaSi2O6 was tunable by glass particle size. In this study the glasses F3, F3-Cu with 1 mol% CuO added at the expense of CaO and the well-known 13-93 were chosen to determine the influence of surface crystallization on 3D printed sinter bodies. For this purpose, grain size fractions in range of smaller 32 µm to 315 µm in fraction size of 6-20 µm were sieved from jaw crushed glass frit as well as glass cubes were cut from casted blocks for all glasses. Sintering behavior of both pressed and printed powder compacts was observed via heating microscopy. Crystallization was determined by DTA and crystallization progress was monitored on fractured sinter bodies and polished cubes via electron and laser scanning microscopy as well as with diffractometry. Depending on grain size the formation of crystalline support framework along former grain boundaries shows the capability to stabilize fully densified sinter bodies before softening. Beside of this, the generation of complex hierarchic porosity was possible as well. T2 - ICG Berlin 2022 CY - Berlin, Germany DA - 03.07.2022 KW - Bioactive Glass KW - Crystallization KW - Sintering KW - 3D printing PY - 2022 AN - OPUS4-55253 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Gollwitzer, Christian A1 - Ulbricht, Alexander A1 - Scholz, Philipp A1 - Joshi, Yogita A1 - Weidner, Steffen T1 - 3D printing material filled with metal organic frameworks analyzed by synchrotron based absorption edge tomography N2 - Absorption edge tomography, also known as differential tomography at absorption edges, is a method which exploits the sudden change of the attenuation coefficient, when the photon energy crosses the absorption edge of an element. Synchrotron radiation is the best source for absorption edge tomography, because of its small bandwidth, high intensity and easily adjustable photon energy. The synchrotron beamline BAMline at the synchrotron radiation facility BESSY II in Berlin, which is operated by the Bundesanstalt für Materialforschung und -prüfung (BAM), provides a monochromatized beam in a photon energy range from 5 keV up to 80 keV with a bandwidth of 2%, when the double multilayer monochromator is used. Together with the microtomography setup, this enables differential tomography with submicron resolution at the K edge of the elements from chromium up to the lanthanides, and up to uranium, when the L edges are used as well. In this work, metal organic frameworks (MOFs) embedded in polymer are characterized using differential tomography. MOFs are microporous structures of metal ions, coordinated by organic linker molecules, that can be used in a broad field of applications, especially in gas storage and catalysis. In this work, polymer embedded MOFs were extruded into filaments, which could be used for 3d-printing to profit from the specific properties of the MOFs in polymeric materials combined with the arbitrary shapes provided by 3d-printing. For the extrusion, different polymer classes like ABS, polyester- and polyetherurethanes, as well as different MOFs (ZIF-8, ZIF-67, HKUST-1) were used to create MOF containing filaments with a nominal diameter of 3.0 mm. Differential tomography at the edges of the Zn, Co, and Cu was then used to find the distribution of the corresponding MOF in the filament and to analyze the shape of the inclusions. T2 - MSE 2018 CY - Darmstadt, Germany DA - 26.09.2018 KW - Absorption edge KW - Tomography KW - Metal organic framework KW - Synchrotron PY - 2018 AN - OPUS4-46429 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Lühl, Lars A1 - Hesse, B. A1 - Malzer, W. A1 - Mantouvalou, I. A1 - Hahn, Oliver A1 - Kanngießer, B. T1 - 3D Mirkro-Röntgennahkantenabsorptionsspektroskopie (XANES) - aktueller Stand T2 - PRORA 2009 Satelliten-Workshop CY - Berlin, Germany DA - 2009-11-28 PY - 2009 AN - OPUS4-20645 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Lühl, Lars A1 - Hahn, Oliver A1 - Kanngießer, B. T1 - 3D Mikro-X-Ray Absorption Near Edge Spectroscopy (XANES) T2 - PRORA 2009 - Fachtagung Prozessnahe Töntgenanalytik CY - Berlin, Germany DA - 2009-11-26 PY - 2009 AN - OPUS4-20646 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Lühl, Lars A1 - Hesse, B. A1 - Mantouvalou, I. A1 - Zizak, I. A1 - Hahn, Oliver A1 - Kanngießer, B. T1 - 3D Mikro-Röntgennahkantenabsorptionsspektroskopie (Xanes X-Ray absorption near edge spectroscopy) T2 - Jahrestagung Archäometrie und Denkmalpflege 2010 CY - Bochum, Germany DA - 2010-09-15 PY - 2010 AN - OPUS4-21779 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Lühl, Lars A1 - Mantouvalou, I. A1 - Pagels, M. A1 - Hahn, Oliver A1 - Kanngießer, B. T1 - 3D Mikro-Nahkanten-Absorptionsspektroskopie T2 - Anakon 2009 CY - Berlin, Germany DA - 2009-03-17 PY - 2009 AN - OPUS4-19371 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Lühl, Lars A1 - Hahn, Oliver A1 - Hesse, B. A1 - Mantouvalou, I. A1 - Kanngießer, B. A1 - Zizak, I. T1 - 3D Mikro - Röntgennahkantenabsorptionsspektroskopie (XANES - X - Ray Absorption Near Edge Spectroscopy) T2 - Tagung Archäometrie und Denkmalpflege CY - Bochum, Germany DA - 2010-09-15 PY - 2010 AN - OPUS4-22797 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Cabeza, Sandra A1 - Mishurova, Tatiana A1 - Léonard, Fabien A1 - Staude, Andreas A1 - Bruno, Giovanni T1 - 3D Microstructure Characterization of Al MMC by means of Synchrotron Micro-Tomography at BAMline-Bessy II T2 - BESSY Users Meeting CY - Berlin, Germany DA - 2015-12-10 PY - 2015 AN - OPUS4-35129 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Lühl, Lars A1 - Hahn, Oliver T1 - 3D Micro-XANES (X-Ray Absorption Near Edge Spectroscopy) T2 - Technart 2011 CY - Berlin, Germany DA - 2011-04-26 PY - 2011 AN - OPUS4-24141 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Lühl, Lars A1 - Hesse, B. A1 - Mantouvalou, I. A1 - Hahn, Oliver A1 - Kanngießer, B. T1 - 3D Micro-X-Ray Absorption Near Edge Spectroscopy (XANES) T2 - First Joint BER II and BESSY III Users Meeting CY - Berlin, Germany DA - 2009-11-12 PY - 2009 AN - OPUS4-20648 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Lühl, Lars A1 - Hahn, Oliver A1 - Hesse, B. A1 - Malzer, W. A1 - Mantouvalou, I. A1 - Zizak, I. A1 - Kanngießer, Birgit T1 - 3D Micro-X-Ray Absorption Near Edge Spectroscopy (Xanes) T2 - EXRS CY - Figueira da Foz, Portugal DA - 2010-06-20 PY - 2010 AN - OPUS4-23423 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Lühl, Lars A1 - Hahn, Oliver A1 - Mantouvalou, I. A1 - Malzer, W. A1 - Kanngießer, B. T1 - 3D Micro-X-Ray Absorbtion Near Edge Spectroscopy T2 - EMRS Spring Meeting 2011 CY - Nice, France DA - 2011-05-09 PY - 2011 AN - OPUS4-24147 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Graf, B. A1 - Marko, A. A1 - Petrat, T. A1 - Gumenyuk, Andrey A1 - Rethmeier, Michael T1 - 3D laser metal deposition in an additive manufacturing process chain N2 - Laser metal deposition is described with its applications for additive manufacturing. The necessary process chain is discussed, with regard to weld bead dimensions and 3D build-up strategy. Metallurgical cross sections, x-ray and tensile tests are conducted. As demonstrative components, a gas turbine burner and a turbine blade are shown T2 - 1st International Congress on Welding, Additive Manufacturing and Associated Non-Destructive Testing CY - Metz, France DA - 17.05.2017 KW - Additive manufacturing KW - Ti-6Al-4V KW - Process chain KW - Turbine industry KW - Laser metal deposition PY - 2017 AN - OPUS4-44477 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Maierhofer, Christiane A1 - Krankenhagen, Rainer A1 - Myrach, Philipp A1 - Mecke, R. A1 - Seidl, T. A1 - Schiller, M. A1 - Kalisch, U. T1 - 3D Kartierung von Schäden in historischen Bauwerken mit thermografischen, optischen und Ulrtaschall-Verfahren T2 - Arbeitskreis Stuttgart der DGZfP CY - Stuttgart DA - 2014-11-20 PY - 2014 AN - OPUS4-32081 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Maierhofer, Christiane A1 - Krankenhagen, Rainer A1 - Myrach, Philipp A1 - Hennen, C. A1 - Meinhardt, J. A1 - Mecke, R. A1 - Schiller, M. A1 - Seidl, T. A1 - Kalisch, U. T1 - 3D Kartierung von Rissen in historischem Beton mit thermografischen, optischen und Ultraschall-Verfahren T2 - DGZfP-Jahrestagung 2014 CY - Potsdam, Germany DA - 2014-05-26 PY - 2014 AN - OPUS4-30835 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER -