Size- and shape-dependent superheating of nanoparticles embedded in a matrix

被引：19

作者：

Qi, WH ^{[1
]}

Wang, MP

机构：

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

[2] Jiangsu Univ, Sch Mat Sci & Engn, Zhenjiang 212013, Jiangsu, Peoples R China

来源：

MATERIALS LETTERS | 2005年 / 59卷 / 18期

基金：

中国国家自然科学基金;

关键词：

nanoparticles; superheating; shape factor;

D O I：

10.1016/j.matlet.2004.06.079

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A new model accounting for the size- and shape-dependent superheating of nanoparticles embedded in a matrix has been developed where the particle shape is considered by introducing a shape factor. It is found that if the nanoparticles have coherent or semi-coherent interface with the matrix and the matrix has a higher melting temperature than the nanoparticles, superheating will arise. Furthermore, it is shown in present calculation that the particle shape may contribute about 10% to the total temperature variation. The present predictions are consistent with the available experimental results. (c) 2005 Elsevier B.V. All rights reserved.

引用

页码：2262 / 2266

页数：5

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