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
收藏
页码：2262 / 2266
页数：5
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