▎ 摘　　要

NOVELTY - Preparing graphene reinforced copper-based composite material comprises (a) oxidizing the electrolytic copper powder at high temperature to obtain copper oxide powder, where the copper oxide powder is copper powder coated with a copper oxide film on the surface, (b) mixing copper oxide powder with ethanol and high-energy ball milling and vacuum drying to obtain multi-scale copper oxide powder, (c) adding graphene oxide to ethanol for ultrasonic dispersion treatment to obtain a graphene oxide ethanol solution, (d) adding multi-scale copper oxide powder to graphene oxide ethanol solution for primary ball milling, vacuum drying and secondary ball milling to obtain mixed powder, (e) placing the mixed powder in a tube furnace and performing reduction in a reducing atmosphere to obtain reduced graphene oxide supported copper nano-particle composite powder and (f) placing reduced graphene oxide supported copper nanoparticle composite powder in a graphite mold for spark plasma sintering. USE - The method is useful for preparing graphene reinforced copper-based composite material. ADVANTAGE - The method: promotes the uniform distribution of reduced graphene oxide in the copper matrix; and reduces the agglomeration of reduced graphene oxide during the sintering process; is beneficial to play the role of graphene as a reinforcing body; strengthens the interface bonding; and achieves a good match between the strength and plasticity of the graphene-reinforced copper-based composite material.