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发布时间：2019-03-13

论文类型：期刊论文

发表时间：2016-05-24

发表刊物：NANOMATERIALS AND NANOTECHNOLOGY

收录刊物：EI、SCIE

卷号：6

期号：1

ISSN号：1847-9804

关键字：Nanoparticles; Nanomechanics; Molecular Dynamics Simulations

摘要：In the present study, the sawtooth nature of compressive loading of metallic nanoparticles is observed using a molecular dynamics simulation. The atomic structure evolution confirmed that extended dislocations are the main defects split into two asynchronous partial dislocations, along with stored and released fault energy. This is considered the essence of sawtooth loading. The size of the nanoparticles relative to the equilibrium width of the extended dislocation is discussed to explain the simulation results.