Effects of irradiation on the mechanical behavior of twined SiC nanowires

被引：8

作者：

Jin, Enze ^{[1
]}

Niu, Li-Sha ^{[1
]}

Lin, Enqiang ^{[1
]}

Duan, Zheng ^{[1
]}

机构：

[1] Tsinghua Univ, Dept Engn Mech, AML, Beijing 100084, Peoples R China

来源：

JOURNAL OF APPLIED PHYSICS | 2013年 / 113卷 / 10期

关键词：

ION IRRADIATION; DEFECT PRODUCTION; SILICON; ELASTICITY; STRENGTH; TENSILE; SIZE;

D O I：

10.1063/1.4795162

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Irradiation is known to bring new features in one-dimensional nano materials. In this study, we used molecular dynamics simulations to investigate the irradiation effects on twined SiC nanowires. Defects tend to accumulate from outside toward inside of the twined SiC nanowires with increasing irradiation dose, leading to a transition from brittle to ductile failure under tensile load. Atomic chains are formed in the ductile failure process. The first-principles calculations show that most of the atomic chains are metallic. (C) 2013 American Institute of Physics. [http://dx.doi.org/10.1063/1.4795162]

引用

页数：9

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