Ceramic faced outer air seal for gas turbine engines

Details Ceramic faced outer air seal for gas turbine engines Ceramic faced outer air seal for gas turbine engines

F - Mech Eng,Light,Heat,Weapons

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F01D 25/00 (2006.01) F01D 11/12 (2006.01)

Patent

CA 1213833

Abstract Ceramic Faced Outer Air Seal for Gas Turbine Engines Outer air seal structures of particular suita- bility for use in gas turbine engines are disclosed. Techniques for improving resistance to erosion while maintaining good abradability are discussed. In one particular structure the ceramic facing material of an outer air seal (30) at the leading edge region (36) is densified by a plasma gun to pro- duce a glazed area (52) which is resistant to erosion.

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