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

C - Chemistry, Metallurgy

04

B

117/56

C04B 37/02 (2006.01) B32B 15/04 (2006.01) C23C 4/02 (2006.01) C23C 4/10 (2006.01) F01D 5/28 (2006.01) F01D 25/08 (2006.01)

Patent

CA 1162796

CERAMIC FACED STRUCTURES AND METHODS FOR MANUFACTURE THEREOF ABSTRACT OF THE DISCLOSURE 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. 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 fabrica- tion in accordance with the concepts disclosed herein include, but are not limited to, outer air seals, combustion chambers, and airfoils of gas turbine engines. F-4294

347540

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