Deformation mechanisms of face-centered-cubic metal nanowires with twin boundaries

doi:10.1063/1.2721367

IMECH-IR > 力学所知识产出(1956-2008)

	Deformation mechanisms of face-centered-cubic metal nanowires with twin boundaries
	Cao AJ(曹阿静); Wei YG(魏悦广); Mao SX; Cao, AJ (reprint author), Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100080, Peoples R China.
发表期刊	Applied Physics Letters
	2007
卷号	90 期号:15 页码:151909
ISSN	0003-6951
摘要	This letter addresses the issue of deformation mechanisms and mechanical tensile behavior of the twinned metal nanowires using atomistic simulations. Free surfaces are always the preferential dislocation nucleation sites in the initial inelastic deformation stage, while with further plastic deformation, twin boundary interfaces will act as sources of dislocations with the assistance of the newly formed defects. The smaller the twin boundary spacing, the higher the yielding stresses of the twinned nanowires. Twin boundaries, which serve both as obstacles to dislocation motion and dislocation sources, can lead to hardening effects and contribute to the tensile ductility. This work illustrates that the mechanical properties of metal nanowires could be controlled by tailoring internal growth twin structures. (c) 2007 American Institute of Physics.
关键词	Molecular-dynamics Gold Nanowires Cu Nanowires Strength Al Simulations Stress
DOI	10.1063/1.2721367
收录类别	SCI ; EI
语种	英语
WOS记录号	WOS:000245690700038
关键词[WOS]	MOLECULAR-DYNAMICS ; GOLD NANOWIRES ; CU NANOWIRES ; STRENGTH ; AL ; SIMULATIONS ; STRESS
WOS研究方向	Physics
WOS类目	Physics, Applied
引用统计	被引频次：171[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://dspace.imech.ac.cn/handle/311007/34007
专题	力学所知识产出(1956-2008)
通讯作者	Cao, AJ (reprint author), Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100080, Peoples R China.
推荐引用方式 GB/T 7714	Cao AJ,Wei YG,Mao SX,et al. Deformation mechanisms of face-centered-cubic metal nanowires with twin boundaries[J]. Applied Physics Letters,2007,90,15,:151909.
APA	曹阿静,魏悦广,Mao SX,&Cao, AJ .(2007).Deformation mechanisms of face-centered-cubic metal nanowires with twin boundaries.Applied Physics Letters,90(15),151909.
MLA	曹阿静,et al."Deformation mechanisms of face-centered-cubic metal nanowires with twin boundaries".Applied Physics Letters 90.15(2007):151909.

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