COMPOSITE OF METAL ALLOY AND CERAMIC RESIN AND METHOD FOR PREPARING SAME

Disclosed is a metal alloy-and-ceramic resin composite. The metal alloy-and-ceramic resin composite includes: a metal alloy, in which recess and protrusion undercuts are formed to provide an average surface roughness of 80 µm to 150 µm by degreasing a surface thereof using a surfactant, and etching the degreased surface using an aqueous solution of at least one acid selected from hydrochloric acid, sulfuric acid, nitric acid, and formic acid; and a ceramic resin including 30 wt% to 70 wt% of at least one resin selected from polypropylene, polyamide, polyphenylene sulfide, polyacetylene, polycarbonate, polyester, and polyphenylene oxide, 20 wt% to 60 wt% of silicon carbide, 5 wt% to 7 wt% of inorganic filler, and 3 wt% to 5 wt% of a dispersing agent. The ceramic resin is integrated on the surface of the metal alloy which is formed with the recess and protrusion undercuts, through injection molding. According to the present invention, since the metal alloy-and-ceramic resin composite is formed by integrating the ceramic resin having a heat dissipation function and the metal alloy, the metal alloy-and-ceramic resin composite can be usefully utilized in LED lighting apparatuses, as well as in various electronic devices, home appliances, medical devices, vehicle structure components, vehicle-mounted components, building material components, and other structure components, and exterior components.