Coating processes – Solid particles or fibers applied – Plural particulate materials applied
Reexamination Certificate
2007-12-25
2007-12-25
Parker, Fred J. (Department: 1762)
Coating processes
Solid particles or fibers applied
Plural particulate materials applied
C427S202000, C427S203000, C427S205000, C427S282000
Reexamination Certificate
active
11266857
ABSTRACT:
The present invention is a gas turbine engine turbine blade comprising an airfoil section having at least an exterior surface, a platform section having an exterior surface, an under platform section having an exterior surface, and a dovetail section having an exterior surface. The blade further comprises a corrosion resistant coating on a surface of a turbine blade section selected from the group consisting of the exterior surface of the under platform section, the exterior surface of the dovetail section, and combinations thereof, the corrosion resistant coating comprising a particulate corrosion resistant component comprising from about 5 weight percent to about 100 weight percent corrosion resistant non-alumina particulates having a CTE greater than that of alumina particulates and balance alumina particulates, and a binder component. The present invention also includes methods for making such a gas turbine engine blade.
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Hazel Brian Thomas
Nagaraj Bangalore Aswatha
General Electric Company
McNees Wallace & Nurick LLC
Parker Fred J.
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