Composite protective coating for carbon-carbon substrates

Details Composite protective coating for carbon-carbon substrates Composite protective coating for carbon-carbon substrates

1981-08-10

1985-02-19

Kendell, Lorraine T.

Stock material or miscellaneous articles

Self-sustaining carbon mass or layer with impregnant or...

428366, 428367, 428384, 428698, B32B 900

Patent

active

045006024

ABSTRACT:
Composite protective coatings for protecting carbonaceous substrates from degrading in oxygen containing environments are provided. The composite protective coatings include a first coating layer applied to the surface of the substrate. The first coating layer is a silicon carbide type coating. The second coating layer is applied to the surface of a first coating layer and is a sputter deposited phase stabilized zirconium oxide having a columnar microstructure. Carbonaceous substrates having the composite protective coatings are able to withstand temperatures of about 4100.degree. F. in oxygen containing environments.

REFERENCES:
patent: 3006782 (1961-10-01), Wheildon, Jr.
patent: 3073717 (1963-01-01), Pyle et al.
patent: 3120453 (1964-02-01), Fitzer et al.
patent: 3476586 (1969-11-01), Vaitcher et al.
patent: 3939028 (1976-02-01), Schiffarth
patent: 4002784 (1977-01-01), Banker et al.
patent: 4275095 (1981-06-01), Warren

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