EQUILIBRIUM SEGREGATION AND INTERFACIAL ENERGY IN MULTICOMPONENT SYSTEMS

被引：87

作者：

DREGIA, SA ^{[1
]}

WYNBLATT, P ^{[1
]}

机构：

[1] CARNEGIE MELLON UNIV, DEPT MET ENGN & MAT SCI, PITTSBURGH, PA 15213 USA

来源：

ACTA METALLURGICA ET MATERIALIA | 1991年 / 39卷 / 05期

关键词：

Interfacial Energy - Interphase Boundaries;

D O I：

10.1016/0956-7151(91)90277-8

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A model is developed in the framework of gradient thermodynamics to study the equilibrium composition and energy of interphase boundaries in multicomponent systems. The parameters of the model are related to bulk properties for a nearest-neighbor, ternary regular solution. The model is applied to study the segregation of Au at interphase boundaries in the Cu-Ag-Au system, as a function of temperature, bulk composition, and interface orientation. Interfacial segregation is predicted and found to reduce interfacial energy in a manner consistent with the Gibbs adsorption equation.

引用

页码：771 / 778

页数：8

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