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Tensile and compressive mechanical behavior of twinned silicon carbide nanowires

文献类型：期刊论文

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作者Wang ZG; Li JB; Gao F; Weber WJ; Wang, ZG, Univ Elect Sci & Technol China, Dept Appl Phys, Chengdu 610054, Peoples R China. E-mail Address: zgwang@uestc.edu.cn
刊名acta materialia ; ACTA MATERIALIA
出版日期2010 ; 2010
卷号58期号:6页码:1963-1971
关键词Twinning Twinning Nanotructures Fracture Buckling Molecular Dynamics Chemical-vapor-deposition Ab-initio Calculations Beta-sic Nanowires Low-temperature Thin-films Simulation Elasticity Nanotubes Polytypes Growth Nanotructures Fracture Buckling Molecular dynamics CHEMICAL-VAPOR-DEPOSITION AB-INITIO CALCULATIONS BETA-SIC NANOWIRES LOW-TEMPERATURE THIN-FILMS SIMULATION ELASTICITY NANOTUBES POLYTYPES GROWTH
通讯作者wang, zg, univ elect sci & technol china, dept appl phys, chengdu 610054, peoples r china. e-mail address: zgwang@uestc.edu.cn
合作状况国际
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.; 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.; submitted by 阎军 (yanj@red.semi.ac.cn) on 2010-04-22t13:37:26z no. of bitstreams: 1 tensile and compressive mechanical behavior of twinned silicon carbide nanowires.pdf: 3022750 bytes, checksum: 58a1869f17420efc322118463158744b (md5); approved for entry into archive by 阎军(yanj@red.semi.ac.cn) on 2010-04-22t13:39:25z (gmt) no. of bitstreams: 1 tensile and compressive mechanical behavior of twinned silicon carbide nanowires.pdf: 3022750 bytes, checksum: 58a1869f17420efc322118463158744b (md5); made available in dspace on 2010-04-22t13:39:25z (gmt). no. of bitstreams: 1 tensile and compressive mechanical behavior of twinned silicon carbide nanowires.pdf: 3022750 bytes, checksum: 58a1869f17420efc322118463158744b (md5) previous issue date: 2010; national natural science foundation of china 10704014 ；young scientists foundation of sichuan 09zq026-029 ；uestc jx0731 ；chinese academy of sciences 60925016 ；us department of energy de-ac05-76rl01830; 国际
学科主题半导体物理 ; 半导体物理
收录类别SCI
资助信息national natural science foundation of china 10704014 ；young scientists foundation of sichuan 09zq026-029 ；uestc jx0731 ；chinese academy of sciences 60925016 ；us department of energy de-ac05-76rl01830
语种英语 ; 英语
资助机构National Natural Science Foundation of China 10704014 ；Young Scientists Foundation of Sichuan 09ZQ026-029 ；UESTC JX0731 ；Chinese Academy of Sciences 60925016 ；US Department of Energy DE-AC05-76RL01830
公开日期2010-04-22 ; 2010-04-22 ; 2010-10-15
源URL[http://ir.semi.ac.cn/handle/172111/11184]  
专题半导体研究所_半导体超晶格国家重点实验室
通讯作者Wang, ZG, Univ Elect Sci & Technol China, Dept Appl Phys, Chengdu 610054, Peoples R China. E-mail Address: zgwang@uestc.edu.cn
推荐引用方式
GB/T 7714		 Wang ZG,Li JB,Gao F,et al. Tensile and compressive mechanical behavior of twinned silicon carbide nanowires, Tensile and compressive mechanical behavior of twinned silicon carbide nanowires[J]. acta materialia, ACTA MATERIALIA,2010, 2010,58, 58(6):1963-1971, 1963-1971.
APA Wang ZG,Li JB,Gao F,Weber WJ,&Wang, ZG, Univ Elect Sci & Technol China, Dept Appl Phys, Chengdu 610054, Peoples R China. E-mail Address: zgwang@uestc.edu.cn.(2010).Tensile and compressive mechanical behavior of twinned silicon carbide nanowires.acta materialia,58(6),1963-1971.
MLA Wang ZG,et al."Tensile and compressive mechanical behavior of twinned silicon carbide nanowires".acta materialia 58.6(2010):1963-1971.

入库方式： OAI收割

来源：半导体研究所

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