The graphene copper based composite was prepared by chemical vapor deposition using three-dimensional foam copper as substrate.Meanwhile,the dispersion and interface bonding of graphene in copper matrix were solved,and the copper foam was filled with copper powder.Then,the graphene reinforced copper matrix composite was prepared by vacuum hot pressing.The enhancement effect of graphene on the conductivity and tensile properties of copper matrix composites was investigated.It is found that graphene can significantly enhance the properties of copper matrix,and the graphene deposited at 50 sccm methane flux for 15 min has the best performance.The conductivity of graphene reinforced copper matrix composites prepared by hot pressing reaches 86.2％IACS,the tensile strength reaches 338 MPa,and the yield strength reaches 214 MPa.
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