▎ 摘　　要

NOVELTY - A graphene-alumina-zirconia composite manufacturing method involves forming graphite exfoliated graphene dispersion, preparing an alumina powder and a zirconia powder. The alumina powder and zirconia powder is mixed in a polar solvent to form ceramic slurry. The ceramic slurry is mixed with the dispersion to obtain mixture. The mixture is dried and shaped into shaped body by molding. The shaped body is sintered, where the alumina powder is alumina powder coated with calcium silicate. USE - Method for manufacturing a graphene-alumina-zirconia composite that is utilized for structural material, electronic material, and energy material. ADVANTAGE - The method enables manufacturing a graphene-alumina-zirconia composite with high abrasion resistance, high fracture toughness, high bending strength, high reproducibility, improved mass production and improved electrical characteristic and mechanical property, in a simple manner. DETAILED DESCRIPTION - A graphene-alumina-zirconia composite manufacturing method involves forming graphite exfoliated graphene dispersion, preparing an alumina powder and a zirconia powder. The alumina powder and zirconia powder is mixed in a polar solvent to form ceramic slurry. The ceramic slurry is mixed with the dispersion to obtain mixture. The mixture is dried and shaped into shaped body by molding. The shaped body is sintered, where the alumina powder is alumina powder coated with calcium silicate, which is prepared by mixing alumina powder with calcium nitrate, and tetraethyl orthosilicate in a solvent to form a slurry, followed by adding ammonium hydroxide to the slurry, drying the resultant product, calcining the dried product, and pulverizing the calcined product to obtain obtaining an alumina powder coated with calcium silicate.