▎ 摘　　要

NOVELTY - A transition metal oxide-carrying graphene-reinforced copper-based composite electrical contact material comprises 0.1-3 wt.% transition metal oxide-carrying graphene and 97-99.9 wt.% copper. The transition metal oxide in transition metal oxide-carrying graphene comprises tin oxide (SnO2), zinc oxide (ZnO), iron Oxide (Fe3O4), copper oxide (CuO), nickel oxide (NiO), manganese oxide (MnO), and/or cobalt oxide (Co3O4). USE - Transition metal oxide-carrying graphene-reinforced copper-based composite electrical contact material used in manufacturing electrical contact element. ADVANTAGE - The transition metal oxide-carrying graphene-reinforced copper-based composite electrical contact material can solve the technical problems associated with existing graphene-reinforced copper-based composite material having poor wear resistance and poor electric arc ablation resistance. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for preparation of transition metal oxide-carrying graphene-reinforced copper-based composite electrical contact material, comprising: (1) uniformly mixing 0.1-3 wt.% transition metal oxide-carrying graphene powder and 97-99.9 wt.% copper powder to obtain primary mixed powder (A); (2) subjecting the primary mixed powder (A) into high-energy ball milling using a ball mill, or dispersing and mixing it using high-shear homogenizer to obtain mixed powder (B); and (3) putting the mixed powder (B) into grinding tool, pressing under a pressure of 350-600 MPa for 2-10 minutes to obtain billet; putting the billet in vacuum sintering furnace and then heating to 750-950 degrees C to carry out sintering for 1-3 hours under vacuum condition so as to obtain the transition metal oxide-carrying graphene-reinforced copper-based composite electrical contact material.