▎ 摘　　要

NOVELTY - A three-dimensional printing forming composite material based on powder melting deposition method comprises 1-90 wt.% high thermal conductivity powder material, 1-20 wt.% main chain binder, 10-30 wt.% lubricant, 0.1-5 wt.% surfactant and 0.1-5 wt.% dispersant. The high thermal conductivity powder material comprises metal powder, metal silicon powder, graphene, silicon carbide, carbon black, powder graphite carbon nanotube and/or metal oxide. The main chain binder is thermoplastic polymer. The solid content of composite material is 60-80%. USE - Three-dimensional printing forming composite material based on powder melting deposition method ADVANTAGE - The 3D printing forming composite material has good fluidity, high strength, and is suitable for the component with high degree of complex, preparation preparation high-strength silicon carbide ceramic blank by melt deposition forming method, and combining the reaction sintering preparation of the compact high-quality ceramic blank. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for preparation of the composite material comprising mixing high thermal conductivity powder material, surfactant and anhydrous ethanol, ball milling to obtain slurry, grinding and sieving, and drying to obtain modified powder; and melting main chain binder, mixing in mixer, adding modified powder, gradually adding lubricant, and molding.