▎ 摘　　要

NOVELTY - Graphene-garnet-type ferrite composite material, is prepared by ball milling, pre-calcining, granulating, pressing and sintering at 1250-1450 from the dispersion liquid of metal oxide and graphene material which constitutes the garnet-type ferrite material, where the mass ratio of the graphene material to the garnet-type ferrite material is 0.1-15:1000. USE - The material is useful in microwave communication (claimed). ADVANTAGE - The material has high heat-conducting coefficient, narrow ferromagnetic resonance line width, small dielectric loss, improved radiating effect, prolongs the service life, and has excellent industrial prospect. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for preparing graphene-garnet-type ferrite composite material.