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:
Feb. 10, 2015
Filed:
Dec. 05, 2007
Andrew J. Burns, Orlando, FL (US);
Anand A. Kulkarni, Oviedo, FL (US);
Andrew J. Burns, Orlando, FL (US);
Anand A. Kulkarni, Oviedo, FL (US);
Siemens Energy, Inc., Orlando, FL (US);
Abstract
A thermally protective coating (), such as may be used over a nickel-based superalloy substrate (). The protective coating () includes a CoNiCrAlY or a NiCoCrAlY material and addition of given amounts of one or more secondary elements. The secondary element(s) facilitate and/or join in one or more precipitation mechanisms (γ', B2) that retain an aluminum reservoir in the protective coating (), reducing aluminum diffusion into the substrate (). This aluminum reservoir maintains a protective alumina scale () on the coating (), thus improving coating life and allowing higher operating temperatures.