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J. Korean Ceram. Soc. > Volume 42(9); 2005 > Article
Journal of the Korean Ceramic Society 2005;42(9): 599.
doi: https://doi.org/10.4191/kcers.2005.42.9.599
Coarsening Advantage of Twinned BaTiO3 Seed Particle
Hong-Ri Jin, Wook Jo, Nong-Moon Hwang, Doh-Yeon Kim
School of Materials Science and Engineering and Center for Microstructure Science of Materials, Seoul National University
The coarsening process of two different $BaTiO_3$ single crystal seeds, one with a (111) double twin and the other without it, was investigated. Due to the presence of Twin Plane Reentrant Edge (TPRE), the coarsening rate of the twinned seed crystal was significantly higher than that without a twin. For the coarsening by the 2-dimensional nucleation and lateral growth, the energy barrier for nucleation at the TPRE was analyzed to be about a half compared with that at the terrace planes.
Key words: Grain growth mechanism, Twin plane reentrant edge
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