Knowledge Management System of Institue of Mechanics, CAS
| 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.
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| Source Publication | Applied Physics Letters
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| 2007 | |
| Volume | 90Issue:15Pages:151909 |
| ISSN | 0003-6951 |
| Abstract | 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. |
| Keyword | Molecular-dynamics Gold Nanowires Cu Nanowires Strength Al Simulations Stress |
| DOI | 10.1063/1.2721367 |
| Indexed By | SCI ; EI |
| Language | 英语 |
| WOS ID | WOS:000245690700038 |
| WOS Keyword | MOLECULAR-DYNAMICS ; GOLD NANOWIRES ; CU NANOWIRES ; STRENGTH ; AL ; SIMULATIONS ; STRESS |
| WOS Research Area | Physics |
| WOS Subject | Physics, Applied |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/34007 |
| Collection | 力学所知识产出(1956-2008) |
| Corresponding Author | Cao, AJ (reprint author), Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100080, Peoples R China. |
| Recommended Citation 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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