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| Novel Mechanical Behavior Of Zno Nanorods | |
Wang J ; Kulkarni AJ; Ke FJ(柯孚久); Bai YL(白以龙); Zhou M; Zhou, M (reprint author), Georgia Inst Technol, GWW Sch Mech Engn, Atlanta, GA 30332 USA.
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| Source Publication | Computer Methods In Applied Mechanics And Engineering
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| 2008 | |
| Pages | 3182-3189 |
| ISSN | 0045-7825 |
| Abstract | A novel stress-strain relation with two stages of linear elastic deformation is observed in [0 0 0 1]-oriented ZnO nanorods under uniaxial tensile loading. This phenomenon results from a phase transformation from wurtzite (WZ, P6(3)mc space group) to a body-centered tetragonal structure with four-atom rings (denoted as BCT-4) belonging to the P4(2)/mnm space group. The analysis here focuses on the effects of nanorod size and temperature on the phase transformation and the associated mechanical behavior. It is found that as size is increased from 19.5 to 45.5 angstrom, the critical stress for nucleation of the transformation decreases by 25% from 21.90 to 16.50 GPa and the elastic moduli of the WZ- and BCT-4-structured nanorods decrease by 24% (from 299.49 to 227.51 GPa) and 38% (from 269.29 to 166.86 GPa), respectively. A significant temperature effect is also observed, with the critical stress for transformation initiation decreasing 87.8% from 17.89 to 2.19 GPa as temperature increases from 300 to 1500 K. (c) 2007 Elsevier B.V. All rights reserved. |
| Keyword | Phase Transformation Zno Nanorods Molecular Dynamics Semiconducting Oxide Nanobelts Surface-stress Growth Nanowires Size |
| DOI | 10.1016/j.cma.2007.10.011 |
| Indexed By | SCI ; EI |
| Language | 英语 |
| WOS ID | WOS:000258981600003 |
| WOS Keyword | SEMICONDUCTING OXIDE NANOBELTS ; SURFACE-STRESS ; GROWTH ; NANOWIRES ; SIZE |
| WOS Research Area | Engineering ; Mathematics ; Mechanics |
| WOS Subject | Engineering, Multidisciplinary ; Mathematics, Interdisciplinary Applications ; Mechanics |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/25912 |
| Collection | 力学所知识产出(1956-2008) |
| Corresponding Author | Zhou, M (reprint author), Georgia Inst Technol, GWW Sch Mech Engn, Atlanta, GA 30332 USA. |
| Recommended Citation GB/T 7714 | Wang J,Kulkarni AJ,Ke FJ,et al. Novel Mechanical Behavior Of Zno Nanorods[J]. Computer Methods In Applied Mechanics And Engineering,2008:3182-3189. |
| APA | Wang J,Kulkarni AJ,柯孚久,白以龙,Zhou M,&Zhou, M .(2008).Novel Mechanical Behavior Of Zno Nanorods.Computer Methods In Applied Mechanics And Engineering,3182-3189. |
| MLA | Wang J,et al."Novel Mechanical Behavior Of Zno Nanorods".Computer Methods In Applied Mechanics And Engineering (2008):3182-3189. |
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