ROLE OF NON-EQUILIBRIUM VACANCIES IN SPINODAL DECOMPOSITION

被引：0
|
作者：
Tyutyunnyk, N. V. [1 ]
Gusak, A. N. [1 ]
机构：
[1] Cherkasy Natl Univ, 81 Shevchenko Blvd, UA-18031 Cherkassy, Ukraine
来源：
UKRAINIAN JOURNAL OF PHYSICS | 2012年 / 57卷 / 06期
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中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
The standard Cahn-Hilliard model of spinodal decomposition has an essential fault, because it uses the approximation of equilibrium vacancies, which is valid only for processes with a characteristic length larger than the mean free path of vacancies. A procedure for the consideration of a non-equilibrium redistribution of vacancies at the spinodal decomposition and its influence on the decomposition kinetics is proposed. The hierarchy of characteristic times for the evolution of the morphology and the concentration is analyzed for a two-dimensional system.
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页码：628 / 635
页数：8
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