The competitive nucleation of misfit dislocation dipole and misfit extended dislocation dipole in nanocomposites
文献类型:期刊论文
作者 | Zhao JF; Liu JL; Kang GZ; An LN; Zhang X |
刊名 | ACTA MECHANICA |
出版日期 | 2017-07-01 |
卷号 | 228期号:7页码:2541-2554 |
ISSN号 | 0001-5970 |
DOI | 10.1007/s00707-017-1840-5 |
文献子类 | Article |
英文摘要 | Nanocomposites have shown excellent mechanical and physical properties; however, their properties are seriously affected by the nucleation of misfit defects at the interfaces between the inclusion and the matrix. Based on the energy rule, the nucleation criteria for a misfit extended dislocation dipole (MEDD) and a misfit screw dislocation dipole (MSDD) are analytically given. Furthermore, we systematically investigate the effects of the geometrical and mechanical factors, such as the radius of the inclusion, the misfit strain, the shear modulus ratio and the stacking fault energy, on the competitive nucleation between MEDD and MSDD. It is found that the stacking fault energy has a decisive effect on the competitive nucleation of MEDD and MSDD. The critical stacking fault energy for the nucleation transferring from MSDD to MEDD increases with the increase of the shear modulus ratio and decrease of the misfit strain, while it is almost not affected by the inclusion radius. |
分类号 | 二类 |
WOS关键词 | CRITICAL THICKNESS CONDITION ; SIZE-DEPENDENT INTERACTION ; STRAINED QUANTUM WIRES ; CORE-SHELL NANOWIRE ; SCREW DISLOCATION ; EDGE DISLOCATION ; IMPERFECT INTERFACE ; CIRCULAR INCLUSION ; ELASTIC-CONSTANTS ; EPITAXIAL LAYERS |
WOS研究方向 | Mechanics |
语种 | 英语 |
WOS记录号 | WOS:000404628000011 |
资助机构 | NSFC(11202172) ; Basic Application Research Plan of Sichuan Province(2015JY0239) ; Sichuan Provincial Youth Science and Technology Innovation Team(2013TD0004) ; Opening fund of State Key Laboratory of Nonlinear Mechanics |
源URL | [http://dspace.imech.ac.cn/handle/311007/60891] |
专题 | 力学研究所_非线性力学国家重点实验室 |
通讯作者 | Zhang X |
推荐引用方式 GB/T 7714 | Zhao JF,Liu JL,Kang GZ,et al. The competitive nucleation of misfit dislocation dipole and misfit extended dislocation dipole in nanocomposites[J]. ACTA MECHANICA,2017,228(7):2541-2554. |
APA | Zhao JF,Liu JL,Kang GZ,An LN,&Zhang X.(2017).The competitive nucleation of misfit dislocation dipole and misfit extended dislocation dipole in nanocomposites.ACTA MECHANICA,228(7),2541-2554. |
MLA | Zhao JF,et al."The competitive nucleation of misfit dislocation dipole and misfit extended dislocation dipole in nanocomposites".ACTA MECHANICA 228.7(2017):2541-2554. |
入库方式: OAI收割
来源:力学研究所
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