▎ 摘　　要

NOVELTY - Producing alumina-graphene composite, comprises (a) mixing 0.01-7 pts. wt. powder of graphite, oxidized graphene and/or expanded graphite with 100 pts. wt. alumina powder, 0.01-3 pts. wt. ammonium polycarboxylate, 0.01-3 pts. wt. organic binder and dispersion medium using a bead mill to form slurry, (b) drying the slurry to form composite powder, (c) molding the composite powder, (d) degassing the molded product under inert gas atmosphere in a vacuum furnace for removing organic components from the molded product, and (e) sintering the degreased product under inert gas atmosphere. USE - The method is useful for producing alumina-graphene composite (claimed). ADVANTAGE - The composite has excellent abrasion resistance, toughness , strength and mechanical properties. DETAILED DESCRIPTION - Producing alumina-graphene composite, comprises either (a) mixing 0.01-7 pts. wt. powder of graphite, oxidized graphene and/or expanded graphite with 100 pts. wt. alumina powder, 0.01-3 pts. wt. ammonium polycarboxylate, 0.01-3 pts. wt. organic binder and dispersion medium using a bead mill to form slurry, (b) drying the slurry to form composite powder, (c) molding the composite powder, (d) degassing the molded product under inert gas atmosphere in a vacuum furnace for removing organic components from the molded product, and (e) sintering the degreased product under inert gas atmosphere; or (i) mixing 0.01-7 pts. wt. powder of graphite, oxidized graphene and/or expanded graphite with 100 pts. wt. alumina powder, 0.01-3 pts. wt. ammonium polycarboxylate, 0.01-3 pts. wt. organic binder and dispersion medium using a bead mill to form slurry, (ii) drying the slurry to form composite powder, (iii) degassing the composite powder under inert gas atmosphere in a vacuum furnace for removing organic components, (iv) press-molding and sintering the degreased composite powder under inert gas atmosphere using a hot press.