Simulation of grain growth for ABO(3) type ceramics
Xiong, Z. X.
Ji, G. L.
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The evolutions of grain growth in ceramics with ABO(3) type structure were simulated at atomistic level by the Monte Carlo method with Visual C++ language. Several parameters, such as initial seed number, seed activation coefficient, sintering temperature and time, were incorporated. Realistic images in series were monitored and quantitative data were obtained, including the fractal dimensions of grain boundaries during the kinetic evolution of grain growth. The resulted kinetic exponents of grain growth were variable during the process of simulation, being smaller ( similar to1.8) at early period and larger (similar to5.5) at later stage. It was in good agreement with the experimental result of practical (Ba0.9Sr0.1)TiO3 ceramics. (C) 2002 Published by Elsevier Science B.V.