SPINODAL DECOMPOSITION IN A CONCENTRATION GRADIENT

被引：20

作者：

KOLB, M ^{[1
]}

GOBRON, T ^{[1
]}

GOUYET, JF ^{[1
]}

SAPOVAL, B ^{[1
]}

机构：

[1] ECOLE POLYTECH, F-91128 PALAISEAU, FRANCE

来源：

EUROPHYSICS LETTERS | 1990年 / 11卷 / 07期

关键词：

D O I：

10.1209/0295-5075/11/7/004

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The effect of global density in homogeneities on spinodal decomposition is studied in two dimensions. We performed lattice gas simulations to show that-except for boundary effects-any spatially varying density profile is conserved during phase separation. This observation is used to interpret spinodal decomposition in a concentration gradient in terms of percolation theory. A relation is established between the coarsening process and the fractal properties of the percolation hull. These results are used to interpret fractal structures observed in experiments of silver deposits in polyimide films. © 1990 IOP Publishing Ltd.

引用

页码：601 / 606

页数：6

共 45 条

[1] MONTE-CARLO STUDY OF GROWTH IN THE TWO-DIMENSIONAL SPIN-EXCHANGE KINETIC ISING-MODEL [J].