The chemical potential for stress-driven surface diffusion

被引：35
|
作者：
Wu, CH
机构：
[1] Dept. of Civ. and Mat. Engineering, University of Illinois at Chicago, Chicago, IL 60607-7023
来源：
JOURNAL OF THE MECHANICS AND PHYSICS OF SOLIDS | 1996年 / 44卷 / 12期
关键词：
diffusion; surface; finite strain; chemical potential;
D O I：
10.1016/S0022-5096(96)00059-2
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Stress-driven morphological instability in solids is governed by a surface-diffusion mechanism that is dependent upon the chemical potential that is merely the sum of the surface energy and the surface value of the bulk strain energy. This version of the chemical potential is shown to be incomplete and the exact expression is rigorously derived in the context of finite deformation. The role of the surface stress in the new and complete formulation for the surface roughening phenomenon is demonstrated. Copyright (C) 1996 Elsevier Science Ltd.
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页码：2059 / 2077
页数：19
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