Preceramic composition and ceramic product

Details Preceramic composition and ceramic product Preceramic composition and ceramic product

1990-10-15

1993-11-02

Walsh, Donald P.

Stock material or miscellaneous articles

Web or sheet containing structurally defined element or...

Including a second component containing structurally defined...

428446, 428697, 428698, 428408, 524428, 524439, 501 98, B32B 1800

Patent

active

052582248

ABSTRACT:
Preceramic compositions which have particular utility in providing protective ceramic coatings on normally oxidizable materials, such as carbon/carbon and other carbon-containing composites and other materials, are obtained by dispersing solid particles comprising aluminum nitride particles in an organic solvent solution of a polysilazane. Ceramic coatings derived from the dispersions may serve as intermediate strata in multilayer ceramic coatings over substrates, such as carbon/ carbon composites, to provide even greater protection to the substrates, even when exposed to humidity.

REFERENCES:
patent: 4482669 (1984-11-01), Seyferth et al.
patent: 4942011 (1990-07-01), Bolt et al.
patent: 5006492 (1991-04-01), Semen et al.
patent: 5009961 (1991-04-01), Niebylski
patent: 5041337 (1991-08-01), Niebylski
patent: 5073330 (1991-12-01), Nishio et al.

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