Compressive mechanical behavior of Au nanowires

被引:25
作者
Wen, Yu-Hua [1 ,2 ,3 ]
Wang, Quan [1 ]
Liew, Kim Meow [4 ]
Zhu, Zi-Zhong [2 ,3 ]
机构
[1] Univ Manitoba, Dept Mech & Mfg Engn, Winnipeg, MB R3T 5V6, Canada
[2] Xiamen Univ, Dept Phys, Xiamen 361005, Peoples R China
[3] Xiamen Univ, Inst Theoret Phys & Astrophys, Xiamen 361005, Peoples R China
[4] City Univ Hong Kong, Dept Bldg & Construct, Hong Kong, Hong Kong, Peoples R China
基金
加拿大自然科学与工程研究理事会;
关键词
Nanowire; Compressive failure; Molecular dynamics; MULTISHELL GOLD NANOWIRES; LIGHT-EMITTING-DIODES; MOLECULAR-DYNAMICS; ATOMISTIC SIMULATION; ELASTIC PROPERTIES; CARBON NANOTUBES; CRYSTALLINE; STRENGTH; CLUSTERS;
D O I
10.1016/j.physleta.2010.05.015
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
The structural evolution, deformation mechanism, and failure behavior of Au vertical bar 001 vertical bar nanowires with various sizes and slenderness ratios under uniaxial compression have been investigated using molecular dynamics. The results show that the elastic modulus, yield stress, and strain all are dependent on the diameters and slenderness ratios of the nanowires. Buckling behavior is observed in a long nanowire, followed by slips in the {111} planes. Differences are identified in the failure behavior of a short nanowire and a medium nanowire, although the plastic deformation of both types of nanowire originates from the slips in the {111} planes. (C) 2010 Elsevier B.V. All rights reserved.
引用
收藏
页码:2949 / 2952
页数:4
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