Atomistic Simulations on the Mechanical Behavior of Single-Crystalline Cu Nanowires Under Bending and Torsion Loads
文献类型：期刊论文
| 作者 | Tian, Xia; Cui, Junzhi ; Xiang, Meizhen
|
| 刊名 | JOURNAL OF COMPUTATIONAL AND THEORETICAL NANOSCIENCE
 |
| 出版日期 | 2010-06-01 |
| 卷号 | 7期号:6页码:1194-1200 |
| 关键词 | Single-Crystalline Cu Nanowires Bending Torsion Plastic Deformation Mechanism Dislocation Deformation Twin |
| ISSN号 | 1546-1955 |
| DOI | 10.1166/jctn.2010.1472 |
| 英文摘要 | Molecular dynamics simulations are used to investigate the mechanical behavior of < 001 >/{100} and < 110 >/{111} single-crystalline Cu nanowires under bending and torsion. In the numerical simulations of < 001 >/{100} Cu nanowires subjected to bending, some fivefold deformation twins are observed at large bending angles. It is found that a reciprocal phase transformation from atoms of other 12-coordinate lattice to hcp lattice plays an important role in forming the fivefold deformation twins. Therefore, the formation process is distinct from that reported by Cao and Wei [Appl. Phys. Lett. 89, 041919 (2006)] in nanocrystalline Cu systems. However, for the < 110 >/{111} counterparts under bending, no fivefold deformation twin is detected during the whole deformation process. In addition, we reveal that the emission of full dislocations from the two ends of the wire is the major deformation mechanism for < 001 >/{100} Cu nanowires to torsion, while for < 110 >/{111} Cu samples, the nucleation of full dislocations from the side surfaces is responsible for the torsion plastic deformation. |
| 资助项目 | Special Funds for National Basic Research Program of China[2010CB832702] ; National Natural Science Foundation of China[90916027] |
| WOS研究方向 | Chemistry ; Science & Technology - Other Topics ; Materials Science ; Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:000277615600032 |
| 出版者 | AMER SCIENTIFIC PUBLISHERS |
| 源URL | [http://ir.amss.ac.cn/handle/2S8OKBNM/9828]  |
| 专题 | 计算数学与科学工程计算研究所 |
| 通讯作者 | Tian, Xia |
| 作者单位 | Chinese Acad Sci, Acad Math & Syst Sci, Beijing 100190, Peoples R China |
| 推荐引用方式 GB/T 7714 | Tian, Xia,Cui, Junzhi,Xiang, Meizhen. Atomistic Simulations on the Mechanical Behavior of Single-Crystalline Cu Nanowires Under Bending and Torsion Loads[J]. JOURNAL OF COMPUTATIONAL AND THEORETICAL NANOSCIENCE,2010,7(6):1194-1200. |
| APA | Tian, Xia,Cui, Junzhi,&Xiang, Meizhen.(2010).Atomistic Simulations on the Mechanical Behavior of Single-Crystalline Cu Nanowires Under Bending and Torsion Loads.JOURNAL OF COMPUTATIONAL AND THEORETICAL NANOSCIENCE,7(6),1194-1200. |
| MLA | Tian, Xia,et al."Atomistic Simulations on the Mechanical Behavior of Single-Crystalline Cu Nanowires Under Bending and Torsion Loads".JOURNAL OF COMPUTATIONAL AND THEORETICAL NANOSCIENCE 7.6(2010):1194-1200. |
入库方式： OAI收割
来源：数学与系统科学研究院
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