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. 25, 2012
Filed:
Nov. 22, 2010
Surinder Singh Pabla, Greenville, SC (US);
Vinod Kumar Pareek, Schenectady, NY (US);
Suchismita Sanyal, Kamataka, IN;
Krishnamurthy Anand, Kamataka, IN;
Prajina Bhattacharya, Kamataka, IN;
Surinder Singh Pabla, Greenville, SC (US);
Vinod Kumar Pareek, Schenectady, NY (US);
Suchismita Sanyal, Kamataka, IN;
Krishnamurthy Anand, Kamataka, IN;
Prajina Bhattacharya, Kamataka, IN;
General Electric Company, Schenectady, NY (US);
Abstract
A vanadium resistant coating system resistant to high temperature vanadium attack. The system comprises a high temperature superalloy substrate. A bond coat overlies the superalloy substrate. The bond coat may be applied in multiple layers. A ceramic coating overlies the bond coat. The ceramic coating further comprises a zirconium oxide stabilized by at least one cation selected from the group consisting of Yb, Lu, Scand Ce, in the amounts of about 5-10 weight percent. An overcoat may overlie the ceramic coating. The overcoat may be a sacrificial layer of YSZ infiltrated with cations having an atomic radius larger than Y. Alternatively, the overcoat may comprise zirconium oxide stabilized by Ce.