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US 2015/0308281 A1Published application
LOW PERMEABILITY HIGH PRESSURE COMPRESSOR ABRADABLE SEAL FOR BARE Ni AIRFOILS HAVING CONTINUOUS METAL MATRIX
AssigneeUnited Technologies Corporation
InventorCHRISTOPHER W. STROCK
Life of this patent
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Abstract
An air seal in a gas turbine engine comprising a substrate. A bond coating layer is adhered to the substrate. An abradable layer is adhered to the bond coating layer. The abradable layer comprises a metal matrix discontinuously filled with a soft ceramic material.
Claims20
A seal comprising:
- an abradable layer, the abradable layer comprising a metal matrix discontinuously filled with soft ceramic material clad with a metal.
A gas turbine engine comprising:
- a first structure;
- a second structure rotating relative to the first structure, wherein one of the first structure and second structure comprises a substrate;
- and
- an abradable layer adhered to the substrate, the abradable layer comprising a metal matrix discontinuously filled with hexagonal boron nitride.
1 more element
A method of manufacturing a gas turbine engine air seal comprising:
- depositing an abradable coating onto a substrate, including cladding hexagonal boron nitride particles with a metallic alloy and consolidating the clad boron nitride particles.
Dependencies are inferred from the claim text.