Method of providing anti-oxidation protection for a composite ma

Details Method of providing anti-oxidation protection for a composite ma Method of providing anti-oxidation protection for a composite ma

1991-10-25

1993-03-16

Robinson, Ellis P.

Stock material or miscellaneous articles

Web or sheet containing structurally defined element or...

Physical dimension specified

428378, 428380, 428384, 428403, 428404, 428408, 428698, 428704, 252502, 252504, 252506, B32B 1800

Patent

active

051943301

ABSTRACT:
A composite material containing carbon is protected against oxidation by forming, on the composite material, an inner layer, an intermediate layer containing boron or a boron compound, and an outer layer of silicon carbide. The inner layer formed on the composite material before the intermediate layer is formed, is made of a refractory carbide that does not contain boron and that is at least 60 microns thick, said inner layer insulating the intermediate layer from the carbon contained in the composite material.

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patent: 4863798 (1989-09-01), Arenz et al.
patent: 4868056 (1989-09-01), Haselkorn
patent: 5051300 (1991-09-01), Rousseau et al.
patent: 5079195 (1992-01-01), Chiang et al.
Patent Abstracts of Japan, vol. 14, No. 290 (C-731) (4233), 22 Jun. 1990, & JP-A2 91270 (Kawasaki Steel Corp.) 30 Mar. 1990.

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