Spinodal decomposition with formation of a glassy phase

被引：52
作者：
Sappelt, D
Jackle, J
机构：
[1] Faculty of Physics, University of Konstanz, Konstanz
来源：
EUROPHYSICS LETTERS | 1997年 / 37卷 / 01期
关键词：
D O I：
10.1209/epl/i1997-00110-7
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
The consequences of a glass transition occurring in one of the two phases formed by spinodal decomposition of a liquid mixture are investigated by numerical solution of the deterministic Cahn-Hilliard equation for two dimensions with a concentration-dependent mobility. The glass transition is modelled by a rapid decrease of the mobility coefficient with increasing concentration of the glass-forming component. For concentrations of the mixture for which the glassy phase percolates and the liquid phase is confined in droplets, a new coarsening mechanism is found which consists in the migration and eventual coalescence of liquid droplets in the glassy phase. For a particular model of the mobility coefficient the growth law for the characteristic length R(t) shows a pronounced plateau at intermediate times.
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页码：13 / 18
页数：6
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