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:
May. 10, 2022
Filed:
May. 29, 2020
Applicant:
Rolls-royce Corporation, Indianapolis, IN (US);
Assignee:
Rolls-Royce Corporation, Indianapolis, IN (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F01D 21/00 (2006.01); F01D 21/14 (2006.01); F01D 25/00 (2006.01); F01D 5/28 (2006.01); G01N 21/64 (2006.01); F01D 11/12 (2006.01); G01B 11/06 (2006.01);
U.S. Cl.
CPC ...
F01D 21/003 (2013.01); F01D 5/284 (2013.01); F01D 5/288 (2013.01); F01D 11/122 (2013.01); F01D 21/14 (2013.01); F01D 25/005 (2013.01); G01B 11/0658 (2013.01); G01N 21/64 (2013.01); F05D 2230/90 (2013.01); F05D 2260/80 (2013.01); F05D 2260/83 (2013.01); F05D 2300/15 (2013.01);
Abstract
An article includes a substrate defining a surface, a bond coat on the surface of the substrate, a coating layer on the bond coat, and a wear indicator. The coating layer includes at least one of an environmental barrier coating (EBC) or an abradable coating. The wear indicator disposed in a first region of the coating layer and includes at least one chromophore dopant and a material of the EBC or the abradable coating. The wear indicator is configured to indicate wear of the coating layer.