Appeal 2007-0950
Application 11/099,264
Claims 1 and 14 illustrate Appellants’ invention of a method for
applying a plasma sprayed coating to a material, and are representative of
the claims on appeal:
1. A method for applying a plasma sprayed coating to a material
comprising:
providing a substrate, the substrate having a surface;
providing a suspension comprising a carrier liquid and sold particles
suspended therein, the solid particles including thermal barrier coating
constituents;
injecting the suspension into a plasma jet of a plasma spray device;
and
directing the resulting plasma jet toward the substrate surface to
deposit a gradient film formed from the constituents onto the substrate
surface.
14. A method for applying a plasma sprayed coating to a material
comprising:
providing a substrate, the substrate having a surface;
providing a liquid/solid mixture comprising a carrier liquid and sold
particles intermixed therewith, the solid particles including thermal barrier
coating constituents;
providing particulate thermal barrier coating constituents other than in
a liquid/solid mixture;
separately injecting the liquid/solid mixture and the particulate
thermal barrier coating constituents into a plasma jet of a plasma spray
device; and
directing the resulting plasma jet toward the substrate surface to
deposit a gradient film formed from the constituents onto the substrate
surface.
The Examiner relies on the evidence in these references:
Peterson US 3,573,090 Mar. 30, 1971
Strutt US 6,025,034 Feb. 15, 2000
Gambino US 2002/0086152 A1 Jul. 4, 2002
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