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US 2025/0101880 A1Published application
Aluminum-chromium oxide coating and method therefor
AssigneeRtx Corporation
InventorsSusanne M. Opalka, Georgios S. Zafiris
Life of this patent
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Abstract
A method applies one or more films of polynuclear aluminum oxide hydroxide and polynuclear chromium hydroxide to a metal substrate. A method thermally treats the metal substrate with the one or more films at a temperature of at least 250° C., the thermal treatment reducing the polynuclear aluminum oxide hydroxides and the polynuclear chromium hydroxides to at least one layer of aluminum-chromium oxide.
Claims20
A method of forming a coating on a gas turbine engine component, the method comprising:
- applying one or more films of polynuclear aluminum oxide hydroxide and polynuclear chromium hydroxide to a metal substrate;
- and
- thermally treating the metal substrate with the one or more films at a temperature of at least 250° C., the thermal treatment reducing the polynuclear aluminum oxide hydroxides and the polynuclear chromium hydroxides to at least one layer of aluminum-chromium oxide.
Dependencies are inferred from the claim text.