Coating apparatus – Gas or vapor deposition
Reexamination Certificate
2005-02-01
2005-02-01
Edwards, Laura (Department: 1734)
Coating apparatus
Gas or vapor deposition
C118S7230VE, C118S717000
Reexamination Certificate
active
06849132
ABSTRACT:
CVD aluminide coatings including a small concentration of a reactive, gettering element for surface active impurities dispersed therein are formed for improved oxidation resistance. The aluminide coatings are formed by CVD codeposition of Al and the gettering element on the substrate using coating gases for the gettering element generated either outside or inside the coating retort depending on the chlorination temperature needed for the particular gettering element.
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Near Daniel L.
Punola David C.
Smith Jeffery S.
Warnes Bruce M.
Edwards Laura
Howmet Research Corporation
Timmer Edward J.
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