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US 2020/0386165 A1Published application
Reflective coating and coating process therefor
AssigneeUnited Technologies Corporation
InventorsBrian T. Hazel, Alan C. Barron, Mary Catherine Gurak
Life of this patent
Estimating the term…
Abstract
A process for coating a component includes applying a bond coat on a substrate of a component; applying a thermal barrier material to the bond coat; and applying a conforming reflective layer to the thermal barrier material, the conforming reflective layer conforming to porous microstructure of the ceramic coating.
Claims22
A process for coating a component of a gas turbine engine, comprising:
- applying a thermal barrier material to form a ceramic coating with a porous microstructure on a substrate;
- and
- applying a platinum group metal as a conforming reflective layer to the thermal barrier material, the conforming reflective layer conforming to the porous microstructure of the ceramic coating to a depth from one-quarter to three-quarters the way down the porous microstructure, but not into physical contact with the substrate.
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A process for coating a turbine component of a gas turbine engine, comprising:
- applying a bond coat on a substrate of a component;
- applying a thermal barrier material to the bond coat via electron beam physical vapor deposition to form a ceramic coating with a porous microstructure, the ceramic coating of a thickness from 100 microns to 200 microns;
- and
- applying a platinum group metal as a conforming reflective layer to the thermal barrier material via atomic layer deposition, the conforming reflective layer conforming to the porous microstructure of the ceramic coating to a depth 20 times deeper than a gap opening of the porous microstructure, but not into physical contact with the substrate, the conforming reflective layer.
1 more element
(canceled)
A gas turbine engine component, comprising:
- a substrate;
- a thermal barrier material on the substrate;
- and
- a conforming reflective layer conforming to a porous microstructure of the ceramic coating.
1 more element
Dependencies are inferred from the claim text.