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:
Dec. 13, 2005
Filed:
Dec. 19, 2003
Jeffrey Allan Pfaendtner, Blue Ash, OH (US);
Deborah A. Schorr, Cincinnati, OH (US);
Ramgopal Darolia, West Chester, OH (US);
Joseph David Rigney, Milford, OH (US);
Irene Spitsberg, Loveland, OH (US);
William Scott Walston, Mason, OH (US);
Jeffrey Allan Pfaendtner, Blue Ash, OH (US);
Deborah A. Schorr, Cincinnati, OH (US);
Ramgopal Darolia, West Chester, OH (US);
Joseph David Rigney, Milford, OH (US);
Irene Spitsberg, Loveland, OH (US);
William Scott Walston, Mason, OH (US);
General Electric Company, Schenectady, NY (US);
Abstract
An article and TBC coating system thereon that in combination exhibit significantly improved spallation resistance. The article comprises a substrate formed of a metal alloy containing ruthenium and one or more refractory elements (e.g., tantalum, tungsten, molybdenum, rhenium, hafnium, etc.). The substrate is protected by a coating system comprising an aluminum-containing bond coat on the surface of the substrate and a ceramic coating bonded to the substrate by the bond coat. The bond coat, preferably an aluminide, is deposited so as to be substantially free of ruthenium, though ruthenium is present in the bond coat as a result of diffusion from the substrate into the bond coat.