The Kirkendall effect in the phase field crystal model

被引：44

作者：

Elder, K. R. ^{[1
]}

Thornton, K. ^{[2
]}

Hoyt, J. J. ^{[3
]}

机构：

[1] Oakland Univ, Dept Phys, Rochester, MI 48309 USA

[2] Univ Michigan, Dept Mat Sci & Engn, Ann Arbor, MI 48109 USA

[3] McMaster Univ, Dept Mat Sci & Engn, Hamilton, ON L8S 4L7, Canada

来源：

PHILOSOPHICAL MAGAZINE | 2011年 / 91卷 / 01期

基金：

美国国家科学基金会; 加拿大自然科学与工程研究理事会;

关键词：

Kirkendall effect; binary phase field crystal model; crystal growth; computer simulation; microstructure formation; DENSITY-FUNCTIONAL THEORY; MULTICOMPONENT SYSTEMS; NONIDEAL SOURCES; LATTICE-GAS; DIFFUSION; BINARY; SEGREGATION; POROSITY; SINKS; FABRICATION;

D O I：

10.1080/14786435.2010.506427

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The Kirkendall effect stems from unequal mobilities of atomic species, which give rise to a net flux of vacancies during interdiffusion in substitutional alloys. In this work, we study a simple binary phase field crystal model to include unequal atomic mobilities and demonstrate that the model captures many phenomena associated with the Kirkendall effect, including the center of mass motion, vacancy supersaturation that can lead to pore formation, and enhanced vacancy concentration near grain boundaries.

引用

页码：151 / 164

页数：14

共 51 条

[1] Dynamical density functional theory: binary phase-separating colloidal fluid in a cavity [J].