초록 ▼

A method is provided of producing a self-supporting ceramic composite structure having one or more encasement members, such as an encasing steel sleeve, joined to it by growth of the ceramic material to engagement surface(s) of the encasement member(s). A parent metal is contacted with a body of fil

A method is provided of producing a self-supporting ceramic composite structure having one or more encasement members, such as an encasing steel sleeve, joined to it by growth of the ceramic material to engagement surface(s) of the encasement member(s). A parent metal is contacted with a body of filler which is encased by the encasement member(s). The resulting assembly is heated to melt and oxidize the parent metal, e.g., aluminum, to form a polycrystalline material comprising an oxidation reaction product which grows through the body of filler and stops at the engagement surface(s) of the encasement member(s) which thereby determines the surface geometry of the grown ceramic matrix. Upon cooling, the encasement member(s) is shrink-fitted about the ceramic composite body. The invention also provides the resultant articles, for example, a ceramic composite body having a stainless steel member affixed thereto.

대표청구항 ▼

A self-supporting ceramic composite structure comprising a filler, a polycrystalline ceramic matrix embedding said filler, said ceramic matrix comprising an interconnected oxidation reaction product of a precursor metal with an oxidant, and an encasement member comprising a sleave means superimposed

A self-supporting ceramic composite structure comprising a filler, a polycrystalline ceramic matrix embedding said filler, said ceramic matrix comprising an interconnected oxidation reaction product of a precursor metal with an oxidant, and an encasement member comprising a sleave means superimposed onto said filler for maintaining said ceramic composite structure under compressive stress upon intimate engagement with said ceramic matrix developed in situ by intrinsic fit.