Stock material or miscellaneous articles – All metal or with adjacent metals – Composite; i.e. – plural – adjacent – spatially distinct metal...
Reexamination Certificate
2007-09-04
2007-09-04
McNeil, Jennifer (Department: 1775)
Stock material or miscellaneous articles
All metal or with adjacent metals
Composite; i.e., plural, adjacent, spatially distinct metal...
C428S670000, C428S678000, C428S679000, C428S469000, C428S472000, C428S632000, C428S633000, C416S24100B
Reexamination Certificate
active
10904220
ABSTRACT:
An overlay coating for articles used in hostile thermal environments. The coating has a predominantly gamma prime-phase nickel aluminide (Ni3Al) composition suitable for use as an environmental coating and as a bond coat for a thermal barrier coating. The coating has a composition of, by weight, at least 6% to about 15% aluminum, about 2% to about 5% chromium, optionally one or more reactive elements in individual or combined amounts of up to 4%, optionally up to 2% silicon, optionally up to 60% of at least one platinum group metal, and the balance essentially nickel. A thermal-insulating ceramic layer may be deposited on the coating.
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Darolia Ramgopal
Rigney Joseph David
Walston William Scott
Baldwin Gordon R.
General Electric Company
Hartman Domenica N. S.
Hartman Gary M.
McNeil Jennifer
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