The Effect of Graphene Oxide Supported Cerium Oxide on the Properties of Copper Matrix Composites
In order to improve the comprehensive performance of copper matrix composites,three kinds of electrical contact materials with high strength and high conductivity were designed in this experiment,the excellent electrical and mechanical properties of graphene oxide(GO)and CeO2 nanoparticles were introduced into the copper matrix composites with stable electrical contact performance.Three kinds of electrical contact materials,Cu/30Cr,0.5GO/CeO2-Cu/30Cr and 1.0GO/CeO2-Cu/30Cr,were prepared by spark plasma sintering(SPS).The effect of graphene oxide supported cerium oxide on the properties of copper matrix composites was studied.The results show that during the sintering process,GO is reduced to RGO,and the dislocation pinning effect of in-situ formed Cr3C2 and CeO2 nanoparticles strengthens the material.The addition of graphene oxide-loaded cerium oxide improves the overall performance of the composite.
万方数据
维普
