Coated silicon-based ceramic composites and method for making sa

Details Coated silicon-based ceramic composites and method for making sa Coated silicon-based ceramic composites and method for making sa

1976-12-09

1978-08-22

Smith, Ronald H.

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Web or sheet containing structurally defined element or...

Physical dimension specified

156662, 427309, 427376A, 428446, 428539, 428334, 428335, 428336, B32B 904

Patent

active

041090500

ABSTRACT:
A method is provided for making silicon-based ceramic composites having reduced tendency to form complex silicides when in contact with high performance metals or metallic alloys at elevated temperatures. The surface of the silicon-based ceramic composite, such as silicon carbide-silicon matrix composite, is etched, treated with an inorganic oxide mixture and fired. Improved performance is provided when the resulting composite is used in a specific application in contact with a high performance metal or metallic alloy, such as a gas turbine bucket.

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patent: 3969168 (1976-07-01), Kuhn
patent: 3977061 (1976-08-01), Lindstrom
patent: 4001465 (1977-01-01), Graul et al.

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