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	Tensile and compressive mechanical behavior of twinned silicon carbide nanowires
	Wang, Z. G.1,2; Li, J. B.2; Gao, F.3; Weber, W. J.3
刊名	Acta materialia
	2010-04-01
卷号	58期号:6页码:1963-1971
关键词	Twinning Nanotructures Fracture Buckling Molecular dynamics
ISSN号	1359-6454
DOI	10.1016/j.actamat.2009.11.039
通讯作者	Wang, z. g.(zgwang@uestc.edu.cn)
英文摘要	Molecular dynamics simulations with the tersoff potential were used to study the response of twinned sic nanowires under tensile and compressive strain. the critical strain of the twinned nanowires can be enhanced by twin stacking faults, and their critical strains are larger than those of perfect nanowires with the same diameters. under axial tensile strain, the bonds of the nanowires are stretched just before failure. the failure behavior is found to depend on the twin segment thickness and the diameter of the nanowires. an atomic chain is observed for thin nanowires with small twin segment thickness under tension strain. under axial compressive strain, the collapse of twinned sic nanowires exhibits two different failure modes, depending on the length and diameter of the nanowires, i.e., shell buckling for short nanowires and columnar buckling for longer nanowires. (c) 2009 acta materialia inc. published by elsevier ltd. all rights reserved.
WOS关键词	CHEMICAL-VAPOR-DEPOSITION ; AB-INITIO CALCULATIONS ; BETA-SIC NANOWIRES ; LOW-TEMPERATURE ; THIN-FILMS ; SIMULATION ; ELASTICITY ; NANOTUBES ; POLYTYPES ; GROWTH
WOS研究方向	Materials Science ; Metallurgy & Metallurgical Engineering
WOS类目	Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
语种	英语
出版者	PERGAMON-ELSEVIER SCIENCE LTD
WOS记录号	WOS:000275511700007
内容类型	期刊论文
URI标识	http://www.corc.org.cn/handle/1471x/2427796
专题	半导体研究所
通讯作者	Wang, Z. G.
作者单位	1.Univ Elect Sci & Technol China, Dept Appl Phys, Chengdu 610054, Peoples R China 2.Chinese Acad Sci, Inst Semicond, State Key Lab Superlattices & Microstruct, Beijing 100083, Peoples R China 3.Pacific NW Natl Lab, Richland, WA 99352 USA
推荐引用方式 GB/T 7714	Wang, Z. G.,Li, J. B.,Gao, F.,et al. Tensile and compressive mechanical behavior of twinned silicon carbide nanowires[J]. Acta materialia,2010,58(6):1963-1971.
APA	Wang, Z. G.,Li, J. B.,Gao, F.,&Weber, W. J..(2010).Tensile and compressive mechanical behavior of twinned silicon carbide nanowires.Acta materialia,58(6),1963-1971.
MLA	Wang, Z. G.,et al."Tensile and compressive mechanical behavior of twinned silicon carbide nanowires".Acta materialia 58.6(2010):1963-1971.

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