Method for applying a thermal barrier coating
AssigneeUnited Technologies Corporation
InventorsNeil B. Ridgeway, David A. Litton
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AssigneeUnited Technologies Corporation
InventorsNeil B. Ridgeway, David A. Litton
Estimating the term…
A method and apparatus for forming thermally grown alpha alumina oxide scale on a substrate is provided. The method includes the steps of: a) providing a heating chamber having a heat source and an oxidizing gas source selectively operable to provide a stream of oxidizing gas; b) providing at least one substrate disposed in the heating chamber, which substrate has a composition sufficient to permit formation of an alpha alumina scale on one or more surfaces; c) maintaining a vacuum in the heating chamber at a level that inhibits formation of one or more low temperature oxides on the one or more surfaces of the substrate; d) heating at least one of the one or more surfaces of the substrate to a predetermined temperature at or above 1800 degrees Fahrenheit; and e) directing the stream of oxidizing gas at a controlled rate toward one or more heated surfaces of the substrate.
A method for forming thermally grown alpha alumina oxide scale on a substrate, comprising:
A method for conditioning a surface of a substrate prior to coating the surface, comprising the steps of:
A system for forming a thermally grown oxide on a surface of at least one substrate, comprising:
Dependencies are inferred from the claim text.