Berlin 2012 – wissenschaftliches Programm

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MI: Fachverband Mikrosonden

MI 7: Poster – 100 years since the Laue experiment: Topical aspects of diffraction and scattering (Joint Session KR, BP, DF, GP, MA, MI, MM; related SYXD)

MI 7.3: Poster

Mittwoch, 28. März 2012, 15:00–17:30, Poster E

Evaluation of interfacial orientation information from 3D X-Ray diffraction contrast tomography in and its application in a mesoscale grain coasening model — •Melanie Syha, Fabian Sehn, Andreas Trenkle, and Daniel Weygand — Karlsruher Institut für Technologie, IAM

The orientation information from 3D X-Ray diffraction contrast tomography investigations in polycrystalline SrTiO₃ ceramics was evaluated before and after annealing. Special emphasis was put on local interface orientations, showing a preference for <100> orientated interfaces that increases during microstructural evolution. Moreover the data was used to investigate orientation dependent relative interface mobilities. The results are discussed in the context of the abnormal growth behavior found in SrTiO₃ and used to adapt a mesoscale grain coarsening model to more realistic simulations of microstructure evolution in this material.