PROCESS FOR PRODUCING COMPOSITE CERAMIC PRODUCTS OF SELF-CARRYING STRUCTURE, PARTICULARLY FOR MASS PRODUCTION

摘要

The invention relates to a method for producing ceramic composites obtained by oxidation of an aluminum parent metal to form a polycrystalline ceramic material by providing a filler having a coating of a silicon source on at least a portion of said filler different in composition from the primary composition of said filler, said silicon source possessing intrinsic doping properties. A body of molten parent metal, adjacent a mass of the filler material, reacts with an oxidant to form an oxidation reaction product which infiltrates the adjacent mass of filler thereby forming the ceramic composite.