Investigate mechanical behavior of gold nanowire with defect

Jia-Lin Tsai, Cheng Fong Hong

研究成果: Conference contribution同行評審

摘要

This study aims to investigate the mechanical properties of gold nanowires using molecular dynamics (MD) simulation. The effects of the cross section size and the defects on the stress strain curves of the nanowires are examined. Moreover, the inception as well as the processing of dislocationin the nanowire is accounted by means of the centro-symmetry parameter and meanwhile, the energy variation during the dislocation is calculated. Results indicated for the pristine gold nanowire, as the cross section size increases, Young's modulus increases, but the yielding stress decreases accordingly. Once the ultimate linear point is attained, the dislocation takes place abruptly from the nanowire surfaceand extended along the {111} planes. On the other hand, for the nanowire with defect, it was found that the dislocation is initiated from the defect which can significantlyreduce the yielding stress of the nanowires.

原文English
主出版物標題Quantum, Nano, Micro Technologies and Applied Researches
頁面49-54
頁數6
DOIs
出版狀態Published - 2014
事件2013 2nd International Symposium on Quantum, Nano and Micro Technologies, ISQNM 2013 - , Singapore
持續時間: 1 12月 20132 12月 2013

出版系列

名字Applied Mechanics and Materials
481
ISSN(列印)1660-9336
ISSN(電子)1662-7482

Conference

Conference2013 2nd International Symposium on Quantum, Nano and Micro Technologies, ISQNM 2013
國家/地區Singapore
期間1/12/132/12/13

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