▎ 摘　　要

NOVELTY - A metal graphene composite material comprises metal particles uniformly coated with graphene oxide at mass ratio of 1:(0.005-0.1). USE - Metal graphene composite material used for friction materials (claimed). ADVANTAGE - The material has excellent dispersion property; it enhances mechanical property of friction materials. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for preparation of metal graphene composite material comprising mixing metal particles with aqueous solution of graphene oxide at room temperature, carrying out in situ reduction reaction, subjecting to vacuum filtration, drying, densifying, molding, and cutting into pieces of different shapes or blocks.