• 文献标题:   Tensile mechanical properties study of SiC/graphene composites based on molecular dynamics
  • 文献类型:   Article
  • 作  者:   ZHAN JM, YAO XH, LI WH, ZHANG XQ
  • 作者关键词:   sic/graphene composite, mechanical propertie, interface structure, multilayer graphene
  • 出版物名称:   COMPUTATIONAL MATERIALS SCIENCE
  • ISSN:   0927-0256 EI 1879-0801
  • 通讯作者地址:   South China Univ Technol
  • 被引频次:   4
  • DOI:   10.1016/j.commatsci.2017.02.006
  • 出版年:   2017

▎ 摘  要

The mechanical properties of the SiC/graphene composites under tensile are studied via molecular dynamics (MD) methods. In our study, the SiC/graphene composites with monolayer graphene and multilayer graphene are built and compared. As a result, the composites with different interface structures present different tensile behaviors. The single graphene sheet in contact with Si-terminated SiC(111) surface brings the higher failure strain and strength. It is also found that the elastic modulus of the composites increase with the increasing graphene volume fraction. As for the composites fabricated with the multilayers graphene, the failure strain of the whole systems would decrease with the increasing graphene layers in the case that graphene serves as single layer. By contrast, when the graphene sheets serve as continuous layers, the failure strain does not change significantly and the strength would increase monotonically with the increasing number of graphene layers. (C) 2017 Elsevier B.V. All rights reserved.