• 文献标题:   Competition between plastic deformation and fracture processes in metal-graphene layered composites
  • 文献类型:   Article
  • 作  者:   OVID KO IA, SHEINERMAN AG
  • 作者关键词:   graphene, composite, strength, fracture, plastic deformation
  • 出版物名称:   JOURNAL OF PHYSICS DAPPLIED PHYSICS
  • ISSN:   0022-3727 EI 1361-6463
  • 通讯作者地址:   St Petersburg State Polytech Univ
  • 被引频次:   10
  • DOI:   10.1088/0022-3727/47/49/495302
  • 出版年:   2014

▎ 摘  要

Competition between plastic deformation and fracture processes in metal-graphene layered composites is theoretically described. In the framework of the suggested approach, plastic deformation and fracture processes controlling the flow stress/strength of a metal-graphene layered composite are the transfer of plastic deformation across a graphene interface and the nanocrack formation initiated by stress fields of lattice dislocations stopped near a graphene interface. With these processes theoretically described, we reveal strength characteristics of metal-graphene layered composites as functions of their key structural parameters, including the metallic layer thickness lambda and graphene layer thickness h. The results of our theoretical examination are consistent with the corresponding experimental data