Ceramic faced structures and methods for manufacture thereof

Details Ceramic faced structures and methods for manufacture thereof Ceramic faced structures and methods for manufacture thereof

1979-05-11

1981-06-16

Ansher, Harold

Stock material or miscellaneous articles

Structurally defined web or sheet

Discontinuous or differential coating, impregnation or bond

415174, 427 34, 427 52, 427 89, 427250, 427328, 427427, 427436, 428550, 428654, 428661, 428937, 428472, B32B 1518, F01D 1108, F04D 2908

Patent

active

042738245

ABSTRACT:
A method of adhering a ceramic facing material to an underlying substrate is disclosed. Substrates to which the concepts apply include unsupported low modulus, porous wire pads as well as low modulus, porous wire pads backed by a solid metallic form. The ceramic application techniques employed are centered around the impregnation of the regions of the pad to be ceramic coated with an underlayment coating, such as MCrAlY material, wherein the designation "M" stands for at least one of the elements from the iron cobalt and nickel group. Deep penetration of the underlayment material into the pad is achieved with a high velocity, spraying process. Ceramic material is applied over the underlayment material by conventional spraying techniques.
Articles of manufacture which are suited to fabrication in accordance with the concepts disclosed herein include, but are not limited to, outer air seals, combustion chambers, and airfoils of gas turbine engines.

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