▎ 摘　　要

NOVELTY - Preparing graphene composite ceramic material comprises e. g. (i) mixing the ceramic particles and graphene powder, ball-milling to obtain mixed particle preform of graphene and ceramic particles, and spray-coating the mixed particle preform with alcohol-soluble resin to obtain graphene composite particles; (ii) taking the ceramic powder, liquid photosensitive resin and foaming agent, and stirring to obtain ceramic slurry; (iii) embedding the graphene composite particles in step (i) into the ceramic slurry in step (ii) under high-pressure airless nozzle to obtain single-layer graphene ceramic slurry, and irradiating the single-layer graphene ceramic slurry with ultra-violet light to obtain unit layer embedded with graphene composite particles; and (iv) repeating the step (iii) on the basis of the unit layer of step (iii), performing multi-layer superimposition molding, and constructing a three-dimensional graphene conductive network in a ceramic matrix. USE - The method is useful for preparing graphene composite ceramic material. ADVANTAGE - The ceramic material has good mechanical properties, good thermal conductivity, and excellent performance of high temperature resistance and high conductivity. DETAILED DESCRIPTION - Preparing graphene composite ceramic material comprises (i) mixing the ceramic particles and graphene powder, ball-milling to obtain mixed particle preform of graphene and ceramic particles, and spray-coating the mixed particle preform with alcohol-soluble resin to obtain graphene composite particles; (ii) taking the ceramic powder, liquid photosensitive resin and foaming agent, and stirring to obtain ceramic slurry; (iii) embedding the graphene composite particles in step (i) into the ceramic slurry in step (ii) under high-pressure airless nozzle to obtain single-layer graphene ceramic slurry, and irradiating the single-layer graphene ceramic slurry with ultra-violet light to obtain unit layer embedded with graphene composite particles; (iv) repeating the step (iii) on the basis of the unit layer of step (iii), performing multi-layer superimposition molding, constructing a three-dimensional graphene conductive network in a ceramic matrix to obtain multilayer graphene ceramic composite material; and (v) freeze-drying, degreasing, and sintering the obtained multi-layer graphene ceramic composite material to remove internal organic matters and obtaining three-dimensional conductive network embedded graphene composite ceramic material.