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US 2023/0407101 A1Published application
Coating method
AssigneeGeneral Electric Company
InventorsMohandas Nayak, Sundeep Kumar, Atanu Saha, Julie Marie Kuhn
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Abstract
A coating method is provided. The coating method includes applying, via electrophoretic deposition or slurry deposition, an overcoat composition on an outer surface of a thermal barrier coating system on a substrate. The overcoat composition includes a coating material comprising a plurality of particles having a particle size of less than 1000 nm. The method includes sintering the overcoat composition in the presence of one or more sintering aids to form an overcoat layer having a surface roughness of less than 1 micrometer.
Claims20
A method, comprising:
- applying an overcoat composition directly on an outer surface of a thermal barrier coating of a thermal barrier coating system on a substrate, the overcoat composition comprising a coating material comprising a plurality of particles, substantially all of the particles having a particle size of less than 1000 nm;
- and
- sintering the overcoat composition in the presence of one or more sintering aids to form an overcoat layer having a surface roughness (Ra) of less than 1 micrometer.
Dependencies are inferred from the claim text.