Coating processes – Coating by vapor – gas – or smoke – Metal coating
Reexamination Certificate
2005-03-08
2005-03-08
Cleveland, Michael (Department: 1762)
Coating processes
Coating by vapor, gas, or smoke
Metal coating
C427S252000, C427S253000, C427S226000
Reexamination Certificate
active
06863925
ABSTRACT:
An article is coasted by preparing a coating source having an aluminum halide, a fluoride or an iodide of a modifying element as a source of the modifying element, and a carrier gas. The modifying element is zirconium, hafnium, and yttrium, or combinations thereof. The coating source is contacted to the article, and the coating source and the article are heated to a coating temperature of at least about 1850° F. for a period of time sufficient to permit aluminum and the modifying element to coat onto the surface of the article. The preferred fluorides of modifying elements are zirconium tetrafluoride and hafnium tetrafluoride.
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Brown Terri Kay
Rigney Joseph David
Wheat Gary Eugene
Wustman Roger Dale
Cleveland Michael
General Electric Company
McNees Wallace & Nurick LLC
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