Vacancy formation energy of small particles

被引：36

作者：

Qi, WH ^{[1
]}

Wang, MP ^{[1
]}

机构：

[1] Cent S Univ, Sch Mat Sci & Engn, Changsha 410083, Peoples R China

来源：

JOURNAL OF MATERIALS SCIENCE | 2004年 / 39卷 / 07期

基金：

国家高技术研究发展计划(863计划);

关键词：

D O I：

10.1023/B:JMSC.0000020020.60857.6a

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A method accounting for the size dependent vacancy formation energy of small particles was developed. It was suggested that since the formation of a vacancy requires the destruction of bonds between and atom and its surrounding atoms, therefore, the energy needed to form a vacancy in small particles is lower than that of the corresponding bulk metal. The theoretical results were found to be consistent with the values given by the melting temperature variation. It was also suggested that the method can be used widely in the research of the point defects in small particles.

引用

页码：2529 / 2530

页数：2

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