| On the wurtzite to tetragonal phase transformation in ZnO nanowires |
| Wang J ; Shen YG; Song F(宋凡); Ke FJ(柯孚久); 廖小舟 XZ; Lu CS(卢春生); Wang, J (reprint author), Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech LNM, Beijing 100190, Peoples R China.
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| 发表期刊 | NANOTECHNOLOGY
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| 2017-04-21
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| 卷号 | 28期号:16 |
| ISSN | 0957-4484
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| 摘要 | There is a long standing contradiction on the tensile response of zinc oxide nanowires between theoretical prediction and experimental observations. Although it is proposed that there is a ductile behavior dominated by phase transformation, only an elastic deformation and brittle fracture was witnessed in experiments. Using molecular dynamics simulations, we clarified that, as the lateral dimension of zinc oxide nanowires increases to a critical value, an unambiguous ductile-to-brittle transition occurs. The critical value increases with decreasing the strain rate. Factors including planar defects and surface contamination induce brittle fracture prior to the initiation of phase transformation. These findings are consistent with previous atomistic standpoints and experimental results. |
| 关键词 | Zno Nanowires
Phase Transformation
Size Effect
Strain Rate
Molecular Dynamics
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| DOI | 10.1088/1361-6528/aa6566
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| 收录类别 | SCI
; EI
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| 语种 | 英语
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| WOS记录号 | WOS:000404289700001
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| 关键词[WOS] | ZINC-OXIDE
; MECHANICAL-PROPERTIES
; SOLAR-CELLS
; SIZE
; SIMULATION
; DYNAMICS
; NANOSTRUCTURES
; NANOPARTICLES
; STABILITY
; BEHAVIOR
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| WOS研究方向 | Science & Technology - Other Topics
; Materials Science
; Physics
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| WOS类目 | Nanoscience & Nanotechnology
; Materials Science, Multidisciplinary
; Physics, Applied
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| 项目资助者 | National Natural Science Foundation of China(11372022||Opening Fund of State Key Laboratory of Nonlinear Mechanics||Strategic Priority Research Program of the Chinese Academy of Sciences(XDB22040501)||Research Grant Council of the Hong Kong Special Administrative Region, China(9042201||Australian Government||Government of Western Australia||LNMGrid of the State Key Laboratory of Nonlinear Mechanics||Computer Network Information Center of the Chinese Academy of Sciences||ScGrid of Supercomputing Center||11232013)||CityU 11211015)
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| 课题组名称 | LNM生物材料微结构和力学性能
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| 论文分区 | 二类/Q1
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| 力学所作者排名 | 1
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| 引用统计 |
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| 文献类型 | 期刊论文
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| 条目标识符 | http://dspace.imech.ac.cn/handle/311007/60630
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| 专题 | 非线性力学国家重点实验室
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| 通讯作者 | Wang, J (reprint author), Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech LNM, Beijing 100190, Peoples R China. |
推荐引用方式
GB/T 7714 |
Wang J,Shen YG,Song F,et al. On the wurtzite to tetragonal phase transformation in ZnO nanowires[J]. NANOTECHNOLOGY,2017,28,16,.
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| APA |
Wang J.,Shen YG.,宋凡.,柯孚久.,廖小舟 XZ.,...&Wang, J .(2017).On the wurtzite to tetragonal phase transformation in ZnO nanowires.NANOTECHNOLOGY,28(16).
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| MLA |
Wang J,et al."On the wurtzite to tetragonal phase transformation in ZnO nanowires".NANOTECHNOLOGY 28.16(2017).
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