PREPARATION METHOD FOR CERAMIC COMPOSITE MATERIAL, CERAMIC COMPOSITE MATERIAL, AND LIGHT SOURCE AP

A preparation method for a ceramic composite material, comprising the following steps : material mixing : mixing a ceramic raw material with a fluorescent powder and prepressing at a preset pressure to produce a ceramic composite material green body, the ceramic raw material comprising either aluminum oxide or aluminum nitride, and the fluorescent powder being a garnet-structured fluorescent powder doped with a rare earth element; green body soaking : soaking the ceramic composite material green body in a soluble salt solution of a second sintering additive for 10-120 min, then drying the soaked ceramic composite material green body, and sintering at a temperature over the decomposition temperature of the soluble salt of the second sintering additive, thus allowing the second sintering additive to attach onto the interior of the ceramic composite material green body; and sintering : sintering in a protective atmosphere or vacuum the ceramic composite material green body having undergone the green body soaking step, thus producing the ceramic composite material.