The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 13, 2007
Filed:
Dec. 31, 2002
Melvin Jackson, Niskayuna, NY (US);
Pazhayannur Subramanian, Niskayuna, NY (US);
Ji-cheng Zhao, Latham, NY (US);
Bernard Bewlay, Schenectady, NY (US);
Ramgopal Darolia, West Chester, OH (US);
Robert Schafrik, Cincinnati, OH (US);
Melvin Jackson, Niskayuna, NY (US);
Pazhayannur Subramanian, Niskayuna, NY (US);
Ji-Cheng Zhao, Latham, NY (US);
Bernard Bewlay, Schenectady, NY (US);
Ramgopal Darolia, West Chester, OH (US);
Robert Schafrik, Cincinnati, OH (US);
General Electric Company, Niskayuna, NY (US);
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.