Lattice contractions of a nanoparticle due to the surface tension: A model of elasticity

被引：70

作者：

Huang, Zaixing ^{[1
]}

Thomson, Peter

Di, Shenglin

机构：

[1] Nanjing Univ Aeronaut & Astronaut, Coll Aerosp Engn, Nanjing 210016, Peoples R China

[2] Monash Univ, Dept Phys & Math Engn, Clayton, Vic 3116, Australia

[3] Univ Technol Sydney, Dept Mech Engn, Sydney, NSW 2007, Australia

来源：

JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS | 2007年 / 68卷 / 04期

关键词：

D O I：

10.1016/j.jpcs.2007.01.016

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The lattice parameters of a metallic nanoparticle decrease with its size. To describe this phenomenon, a model based on elasticity is developed in this paper. Using this model, we investigate the lattice contraction of a metallic nanoparticle due to its surface tension. The effect of size-dependent surface tension on the lattice contraction is discussed. Furthermore, the lattice contraction of a nanoparticle of non-spherical shape is also approximately estimated by defining a shape factor. The analysis shows that the lattice parameters of metallic nanoparticle are size dependent. However, if the radius of nanoparticle is more than 5.0 nm, the effect of size on lattice contraction is almost negligible. (c) 2007 Elsevier Ltd. All rights reserved.

引用

页码：530 / 535

页数：6

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