TY - JOUR A1 - Wäsche, Rolf A1 - Gräber, H.-G. A1 - Klaffke, Dieter T1 - Tribologische Untersuchung zum Verschleißverhalten von keramischen Zahnersatzwerkstoffen KW - Dentalkeramik KW - Bearbeitbarkeit KW - Zwischenmedium KW - pH-Wert KW - Dental ceramic KW - Machinability KW - Liquid media KW - pH-value PY - 2007 SN - 0724-3472 VL - 54 IS - 3 SP - 29 EP - 32 PB - Expert Verlag CY - Renningen AN - OPUS4-15737 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Wäsche, Rolf A1 - Gräber, H.-G. A1 - Klaffke, Dieter T1 - Experimentelle Untersuchungen zum Abriebverhalten von keramischen Werkstoffen für dentale Restaurationen T2 - 47. Tribologie-Fachtagung - Reibung, Schmierung und Verschleiß - Forschung und praktische Anwendungen CY - Göttingen, Germany DA - 2006-09-25 KW - Dentalkeramik KW - Bearbeitbarkeit KW - Abriebverhalten PY - 2006 SN - 3-00-019670-6 VL - I SP - 36/1 EP - 36/9 CY - Aachen AN - OPUS4-31751 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Rack, A. A1 - Riesemeier, Heinrich A1 - Zabler, S. A1 - Weitkamp, T. A1 - Müller, Bernd R. A1 - Weidemann, Gerd A1 - Modregger, P. A1 - Banhart, J. A1 - Helfen, L. A1 - Danilewsky, A.N. A1 - Gräber, H.G. A1 - Heldele, R. A1 - Mayzel, B. A1 - Goebbels, Jürgen A1 - Baumbach, T. ED - Stuart R. Stock, T1 - The high-resolution synchrotron-based imaging stations at the BAMline (BESSY) and TopoTomo (ANKA) N2 - The BAMline at the BESSY light source in Berlin and the TopoTomo beamline at the ANKA synchrotron facility in Karlsruhe (both Germany) operate in the hard X-ray regime (above 6 keV) with similiar photon flux density. For typical imaging applications, a double multilayer monochromator or a filtered white beam is used. In order to optimise the field of view and the resolution of the available indirect pixel detectors, different optical systems have been installed, adapted, respectively, to a large field of view (macroscope) and to high spatial resolution (microscope). They can be combined with different camera systems, ranging from 16-bit dynamic range slow-scan CCDs to fast CMOS cameras. The spatial resolution can be brought substantially beyond the micrometer limit by using a Bragg magnifier. The moderate flux of both beamlines compared to other 3rd generation light sources is compensated by a dedicated scintillator concept. For selected applications, X-ray beam collimation has proven to be a reliable approach to increase the available photon flux density. Absorption contrast, phase contrast, holotomography and refraction-enhanced imaging are used depending on the application. Additionally, at the TopoTomo beamline digital white beam synchrotron topography is performed, using the digital X-ray pixel detectors installed. KW - Microtomography KW - Non-destructive evaluation KW - Coherent imaging KW - X-ray refraction KW - X-ray phase contrast KW - Synchrotron-CT KW - Synchrotron instrumentation KW - Scintillator KW - Bragg magnification KW - Holotomography KW - X-ray topography PY - 2008 DO - https://doi.org/10.1117/12.793721 SN - 0277-786X VL - 7078 SP - 70780X-1 - 70780X-9 AN - OPUS4-18296 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - GEN A1 - Wäsche, Rolf A1 - Hartelt, Manfred A1 - Gräber, H.G. T1 - Experimental study on wear of dental ceramic materials - tests in artificial saliva T2 - 17th International colloquium tribology - Solving friction and wear problems CY - Stuttgart/Ostfildern, Germany DA - 2010-01-19 KW - Fretting KW - Life science KW - Wear KW - Dental materials PY - 2010 SN - 3-924813-80-9 IS - Special aspects of tribology SP - 1 EP - 7 AN - OPUS4-21070 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER -