石墨烯由于具有超高强度、刚度以及优异的热学和电学性能,被认为是金属基复合材料的理想增强相.本文采用常压烧结法制备了石墨烯增强铜基纳米复合材料.采用电镜观察以及其它相应的材料表征对其微观组织及化学成分进行了研究.这些表征结果显示了常压烧结后石墨烯在复合材料中的留存及分布情况.随后对复合材料的硬度及摩擦系数进行了测试.测试结果表明石墨烯可以显著提高复合材料的硬度,同时减小其摩擦系数.“,”Graphene has been considered as an ideal reinforcement filler for metal matrix composites because of its ultra-high strength and stiffness, and exceptional thermal and electrical properties. Graphene-reinforced copper (Gr/Cu) nanocomposites were fabricated by ball milling followed by pressureless vacuum sintering, and were characterized by SEM, TEM, XRD, Raman spectro-scopy and mechanical tests. Results indicate that the graphene platelets are well dispersed in the nanocomposites without apparent damage. The graphene filler dramatically improves the hardness and reduces the coefficient of friction of the Gr/Cu nanocomposites compared to pure Cu.