▎ 摘　　要

NOVELTY - Producing multifunctional alumina graphene composite, comprises (a) adding dispersing agent and multi-layer graphene to solvent, and applying ultrasonic waves to peel micro-layer of graphene, (b) uniformly dispersing the exfoliated micro-layer graphene in alumina matrix using high-energy milling, and (c) preparing alumina/graphene nanoparticles sintered body through spark plasma sintering process. USE - The method is useful for producing multifunctional alumina graphene composite (claimed). ADVANTAGE - The method produces multifunctional alumina graphene composite having excellent physical properties, and no structural defect due to thermal decomposition of graphene.