Turbine blade for extreme temperature conditions

Details Turbine blade for extreme temperature conditions Turbine blade for extreme temperature conditions

2007-03-13

2007-03-13

McNeil, Jennifer (Department: 1775)

Stock material or miscellaneous articles

Composite

Of silicon containing

C428S450000, C416S24100B, C416S24100B

Reexamination Certificate

active

10334590

ABSTRACT:
One exemplary embodiment of a turbine component (which may be a blade) comprises a substrate comprising a silicide-based material, a plurality of through holes disposed in the substrate, the holes being configured to receive an airflow, a silicide coating disposed at the surfaces of the substrate and the through holes, and a thermal barrier coating disposed at the silicide coating. In another exemplary embodiment the silicide coating may be replaced by a Laves phase-containing layer. In still another exemplary embodiment the silicide coating may be replaced by a diffusion barrier layer disposed at a surface of the substrate and a platinum group metal layer disposed at the diffusion barrier layer. One exemplary embodiment of a blade may comprise an airfoil comprising a silicide-based material and through holes disposed therein, a cooling plenum disposed in the airfoil, and a base configured to receive the airfoil in a dovetail fit, the base comprising a superalloy.

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