Effect of body defect on mechanical behaviors of Cu nanowire under tension: a molecular dynamics investigation

Chong Qiao, Yangyang Guo, Zhanyu Wang, Yuxiang Zheng, Rongjun Zhang, Liangyao Chen, Yu Lim Chen, Wan Sheng Su, Yu Jia, Songyou Wang

研究成果: 雜誌貢獻期刊論文同行評審

2 引文 斯高帕斯(Scopus)

摘要

Using molecular dynamics (MD) simulations, we explore the effects of body defects on the elastic and plastic properties of Cu nanowires along <100>, <110> and <111> crystallographic orientations under tension, respectively. Such a body defect is a vacuum sphere localized at the center of nanowire with a radius changing from 1.80 to 10.83 Å. Our calculations illustrate that body defects have a little influence on the elastic properties of Cu nanowires, whereas they have a great influence on the plastic properties of Cu nanowires, showing orientation dependence. In <100> oriented nanowire, the existence of body defects leads to a decrease in the plastic property of nanowire, whereas it plays an opposite role in both <110> and <111> oriented nanowires, resulting in an improvement in the plastic properties of nanowires. Our findings provide an effective method to improve the plastic properties of Cu nanowires, which could be widely applied for the design of nanodevices.

原文英語
頁(從 - 到)13237-13246
頁數10
期刊Journal of Materials Science
52
發行號22
DOIs
出版狀態已發佈 - 2017 十一月 1

ASJC Scopus subject areas

  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering

指紋 深入研究「Effect of body defect on mechanical behaviors of Cu nanowire under tension: a molecular dynamics investigation」主題。共同形成了獨特的指紋。

引用此