x

## 留言板

Atomistic simulation of yield mechanism of single crystal copper nanowires

## Atomistic simulation of yield mechanism of single crystal copper nanowires

Xu Zhen-Hai, Yuan Lin, Shan De-Bin, Guo Bin
• #### Abstract

Molecular statics simulation was used to study the yielding mechanism of 〈100〉 oriented single crystal copper nanowires under tension. The results show that, the yield of nanowires is initially realised via {111}〈112〉 twinning from random activation of partials, and subsequently via slip of {111}〈112〉 partial dislocation; in addition, the partial dislocations on different planes successively slip and meet to form stair-rod dislocation at the initial stage of plastic deformation, while some partial dislocations are piled up near the rigid boundary at the later stage of plastic deformation, both of which hinder dislocation slip, resulting in strengthening of the single crystal copper nanowires.

• Funds:

#### Cited By

•  [1] Liang Jin-Jie, Gao Ning, Li Yu-Hong. Surface effect on \begin{document}${\langle 100 \rangle }$\end{document} interstitial dislocation loop in iron. Acta Physica Sinica, 2020, 69(3): 036101. doi: 10.7498/aps.69.20191379 [2] Li Chuang, Li Wei-Wei, Cai Li, Xie Dan, Liu Bao-Jun, Xiang Lan, Yang Xiao-Kuo, Dong Dan-Na, Liu Jia-Hao, Chen Ya-Bo. Flexible nitrogen dioxide gas sensor based on reduced graphene oxide sensing material using silver nanowire electrode. Acta Physica Sinica, 2020, 69(5): 058101. doi: 10.7498/aps.69.20191390 [3] . Preparing GaN nanowires on Al2O3 substrate without catalyst and its optical property research. Acta Physica Sinica, 2020, (): . doi: 10.7498/aps.69.20191923 [4] . Molecular dynamics study on structural characteristics of Lennard-Jones supercritical fluids. Acta Physica Sinica, 2020, (): . doi: 10.7498/aps.69.20191591 [5] Dong Zheng-Qiong, Zhao Hang, Zhu Jin-Long, Shi Ya-Ting. Influence of incident illumination on optical scattering measurement of typical photoresist nanostructure. Acta Physica Sinica, 2020, 69(3): 030601. doi: 10.7498/aps.69.20191525 [6] Xu Xian-Da, Zhao Lei, Sun Wei-Feng. First-principles on the energy band mechanism for modifying conduction property of graphene nanomeshes. Acta Physica Sinica, 2020, 69(4): 047101. doi: 10.7498/aps.69.20190657 [7] Zhang Meng, Yao Ruo-He, Liu Yu-Rong. A channel thermal noise model of nanoscaled metal-oxide-semiconductor field-effect transistor. Acta Physica Sinica, 2020, 69(5): 057101. doi: 10.7498/aps.69.20191512 [8] . Internal dynamic detection of soliton molecules in a Ti: sapphire femtosecond laser. Acta Physica Sinica, 2020, (): . doi: 10.7498/aps.69.20191989 [9] Zhang Ya-Nan, Zhan Nan, Deng Ling-Ling, Chen Shu-Fen. Efficiency improvement in solution-processed multilayered phosphorescent white organic light emitting diodes by silica coated silver nanocubes. Acta Physica Sinica, 2020, 69(4): 047801. doi: 10.7498/aps.69.20191526 [10] . Investigate the effect of source-drain conduction in single-event transient on nanoscale bulk fin field effect transistor. Acta Physica Sinica, 2020, (): . doi: 10.7498/aps.69.20191896 [11] . Identifying two different configurations of the H32+ by the direct above-threshold ionization spectrum in two-color laser field. Acta Physica Sinica, 2020, (): . doi: 10.7498/aps.69.20200013 [12] Guo Hui, Wang Ya-Jun, Wang Lin-Xue, Zhang Xiao-Fei. Dynamics of ring dark solitons in Bose-Einstein condensates. Acta Physica Sinica, 2020, 69(1): 010302. doi: 10.7498/aps.69.20191424 [13] . Thermodynamics of Laser Plasma Removal of Micro and Nano Particles. Acta Physica Sinica, 2020, (): . doi: 10.7498/aps.69.20191933 [14] Ren Xian-Li, Zhang Wei-Wei, Wu Xiao-Yong, Wu Lu, Wang Yue-Xia. Prediction of short range order in high-entropy alloys and its effect on the electronic, magnetic and mechanical properties. Acta Physica Sinica, 2020, 69(4): 046102. doi: 10.7498/aps.69.20191671 [15] Liao Tian-Jun, Lü Yi-Xiang. Thermodynamic limit and optimal performance prediction of thermophotovoltaic energy conversion devices. Acta Physica Sinica, 2020, 69(5): 057202. doi: 10.7498/aps.69.20191835
•  Citation:
##### Metrics
• Abstract views:  3186
• Cited By: 0
##### Publishing process
• Received Date:  27 November 2008
• Accepted Date:  24 February 2009
• Published Online:  20 July 2009

## Atomistic simulation of yield mechanism of single crystal copper nanowires

• 1. 哈尔滨工业大学材料科学与工程学院，哈尔滨 150001

Abstract: Molecular statics simulation was used to study the yielding mechanism of 〈100〉 oriented single crystal copper nanowires under tension. The results show that, the yield of nanowires is initially realised via {111}〈112〉 twinning from random activation of partials, and subsequently via slip of {111}〈112〉 partial dislocation; in addition, the partial dislocations on different planes successively slip and meet to form stair-rod dislocation at the initial stage of plastic deformation, while some partial dislocations are piled up near the rigid boundary at the later stage of plastic deformation, both of which hinder dislocation slip, resulting in strengthening of the single crystal copper nanowires.

/