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Comparing grain growth experiments and simulations in 3D

: Syha, M.; Bäurer, M.; Hoffmann, M.; Lauridsen, E.; Ludwig, W.; Weygand, D.; Gumbsch, P.

Hansen, N. ; Technical University of Denmark, National Laboratory for Sustainable Energy -Risø DTU-:
Challenges in materials science and possibilities in 3D and 4D characterization techniques : Proceedings of the 31st Risø International Symposium on Materials Science, 6 - 10 September 2010
Roskilde, 2010
ISBN: 978-87-550-3833-2
Risø International Symposium on Materials Science <31, 2010, Roskilde>
Fraunhofer IWM ()
grain growth; experiments; simulations; anisotropy

Experimental investigations in STO ceramics revealed a grain growth anomaly, that presumably originates in the interface anisotropy of these materials. However, the influence of anisotropic grain boundary (GB) properties on grain growth behaviour is to a large extent unknown. The present paper presents 3D grain growth simulations as a possible approach to understand the influence of anisotropic GB properties on the collective behaviour of the GBs in a polycrystal during grain growth. Possibilities to compare 3D growth simulations with experimental 2D sections are discussed and a first reconstructed x-ray diffraction contrast tomography image of a SrTiO3 specimen is presented.