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:
Apr. 05, 2011
Filed:
Oct. 04, 2007
Applicants:
Shamachary Sathish, Bellbrook, OH (US);
Sonia A. Martinez, Ellington, CT (US);
Inventors:
Shamachary Sathish, Bellbrook, OH (US);
Sonia A. Martinez, Ellington, CT (US);
Assignee:
The United States of America as represented by the Secretary of the Air Force, Washington, DC (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G01L 5/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
The present invention provides a method for evaluating degradation of a thermal barrier coating disposed on a turbine blade. The method includes measuring a residual stress of an outer surface portion of a thermal barrier coating on a turbine blade, the turbine blade having been subjected to normal operating conditions and determining degradation of the thermal barrier coating based on a comparison between the residual stress measurement and a control stress measurement.