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:
Jul. 13, 2010
Filed:
Dec. 19, 2005
Brian T. Hazel, West Chester, OH (US);
Jane A. Murphy, Franklin, OH (US);
Andrew J. Skoog, West Chester, OH (US);
Bryan T. Bojanowski, Cincinnati, OH (US);
Michael J. Weimer, Loveland, OH (US);
Brian T. Hazel, West Chester, OH (US);
Jane A. Murphy, Franklin, OH (US);
Andrew J. Skoog, West Chester, OH (US);
Bryan T. Bojanowski, Cincinnati, OH (US);
Michael J. Weimer, Loveland, OH (US);
General Electric Company, Schenectady, NY (US);
Abstract
A corrosion resistant coating for gas turbine engine includes a glassy ceramic matrix wherein the glassy matrix is silica-based, and includes corrosion resistant particles selected from refractory particles and non-refractory MCrAlX particles, and combinations thereof. The corrosion resistant particles are substantially uniformly distributed within the matrix, and provide the coating with corrosion resistance. Importantly the coating of the present invention has a coefficient of thermal expansion (CTE) greater than that of alumina at engine operating temperatures. The CTE of the coating is sufficiently close to the substrate material such that the coating does not spall after frequent engine cycling at temperatures above 1200° F.