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Full-Text Articles in Engineering
Surface Acoustic Wave Spectroscopy Versus Nanoindentation: Potentials And Limits For Coating Characterization, Martin Zawischa, Dieter Schneider, Stefan, Makowski, Lars Lorenz
Surface Acoustic Wave Spectroscopy Versus Nanoindentation: Potentials And Limits For Coating Characterization, Martin Zawischa, Dieter Schneider, Stefan, Makowski, Lars Lorenz
Nanomechanical Testing in Materials Research and Development VII
Measuring mechanical film properties is essential for understanding and designing coating systems as well for controlling quality in coating manufacturing. Since more than two decades, two methods for determining Young’s modulus and other mechanical properties of thin films are widely used: The instrumented indentation technique (nanoindentation) and the laser-induced surface acoustic wave spectroscopy (LiSAWS). Due to their different physical principles, both methods address different fields of application but also complement each other. This presentation gives an overview for typical applications, strengths and limits for both methods from practical points of view like precision, requirements for sample material, preparation and test …
Effect Of Anisotropic Elasticity On Dislocation Pile-Ups At Grain Boundaries, Xiaolei Chen, Stéphane Berbenni, Christian Motz, Thiebaud Richeton
Effect Of Anisotropic Elasticity On Dislocation Pile-Ups At Grain Boundaries, Xiaolei Chen, Stéphane Berbenni, Christian Motz, Thiebaud Richeton
Nanomechanical Testing in Materials Research and Development VII
This study deals with in-situ micromechanical tests of micron-sized bi-crystals and observations coupling SEM, AFM and EBSD. Different FCC bi-crystals are obtained from FIB machining. A SEM in-situ compression test with a low strain is performed on a micron-sized bi-crystal in order to induce single slip deformation. Spatial variations in the surface step height due to dislocation activity in localized slip bands terminating at the grain boundary (GB) are measured by AFM. This allows the determination of the Burgers vector distribution and hence the dislocation positions in the pile-up as shown in Figure 1. Furthermore, local misorientation along slip bands …
Conference Program, Jon Molina-Aldareguia
Conference Program, Jon Molina-Aldareguia
Nanomechanical Testing in Materials Research and Development VII
No abstract provided.