COMPARING GRAIN GROWTH EXPERIMENTS AND SIMULATIONS IN 3D

M. Syha (1) , M. Bäurer (1) , M.J. Hoffmann (1) , E.M. Lauridsen (2) , Wolfgang Ludwig (3) , D. Weygand (1) , P. Gumbsch (4)

1 KIT - Karlsruhe Institute of Technology
2 DTU - Danmarks Tekniske Universitet = Technical University of Denmark
3 MATEIS - Matériaux, ingénierie et science [Villeurbanne]
4 Institut für Zuverlässigkeit von Bauteilen und Systemen (izbs),

Experimental investigations in STO ceramics revealed a grain growth anomaly, that pre- sumably 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 SrTiOspecimen is presented.

Domaines: Science des matériaux [cond-mat.mtrl-sci]

M. Syha, M. Bäurer, M.J. Hoffmann, E.M. Lauridsen, Wolfgang Ludwig, et al.. COMPARING GRAIN GROWTH EXPERIMENTS AND SIMULATIONS IN 3D. 31st Riso International Symposium on Materials Science 2010, Sep 2010, Roskilde, Denmark. pp.437-442. ⟨hal-00534611⟩