▎ 摘　　要

NOVELTY - Preparing graphene-tungsten carbide synergistically reinforced copper-based material composition comprises adding water for dissolving sodium chloride to obtain uniform and transparent precursor solution, freeze drying to obtain dry solid powder, and grinding, calcining, heating, maintaining the temperature, cooling down to obtain three-dimensional sodium chloride graphene load tungsten nano-particles and copper nano-particles self-assembly of powder, performing suction filteration, removing sodium chloride, drying in a vacuum drying oven to obtain graphene powder loaded with nano tungsten particles and copper nanoparticles, mixing copper acetate monohydrate and graphene powder, adding deionized water and aqueous ammonia for dissolving the copper acetate, performing ultrasonic treatment, grinding to obtain copper acetate-coated graphene powder composition, calcining, heating, cooling down to obtain graphene-copper particle powder composition, hot pressing and sintering. USE - The method is useful for preparing graphene-tungsten carbide synergistically reinforced copper-based material composition. DETAILED DESCRIPTION - Preparing graphene-tungsten carbide synergistically reinforced copper-based material composition comprises (a) taking tungsten, copper, carbon and sodium chloride in a molar ratio of 1:1:10:150, weighing ammonium metatungstate, copper nitrate trihydrate, anhydrous glucose and sodium chloride, adding water for dissolving sodium chloride to obtain uniform and transparent precursor solution, (b) freeze drying the precursor solution to obtain dry solid powder, and grinding to obtain a mixed powder, (c) calcining the mixed powder at high temperature under the protection of an hydrogen atmosphere, heating at 720-780 degrees C, maintaining the temperature, cooling down the temperature at a rate of 50-100 degrees C/minute to obtain three-dimensional sodium chloride graphene load tungsten nano-particles and copper nano-particles self-assembly of powder, (d) performing suction filteration of self-assembly of powder by using deionized water, removing sodium chloride, drying in a vacuum drying oven to obtain graphene powder loaded with nano tungsten particles and copper nanoparticles, (e) mixing copper acetate monohydrate and graphene powder according to the mass fraction of graphene in the copper-based material composition of 1-1.5%, then adding deionized water and aqueous ammonia for dissolving the copper acetate, performing ultrasonic treatment, placing in a 70-80 degrees C water bath, stirring for drying, and grinding to obtain copper acetate-coated graphene powder composition, (f) calcining the composition at high temperature under the protection of an hydrogen atmosphere, heating at 600 degrees C, maintaining the temperature, cooling down at a rate of 50-100 degrees C/minute to obtain graphene-copper particle powder composition, and (g) hot pressing and sintering the powder composition at 700-900 degrees C under the vacuum degree of not less than 10-4 Pa, and maintaining the sintering temperature.