Apparatus for determining past-service conditions and remaining life of thermal barrier coatings and components having such coatings
An apparatus for determining past-service conditions and/or remaining useful life of a component of a combustion engine and/or a thermal barrier coating (&#8220;TBC&#8221;) of the component comprises a radiation source that provides the exciting radiation to the TBC to excite a photoluminescent (&#8220;PL&#8221;) material contained therein, a radiation detector for detecting radiation emitted by the PL material, and means for relating a characteristic of an emission spectrum of the PL material to the amount of a crystalline phase in the TBC, thereby inferring the past-service conditions or the remaining useful life of the component or the TBC.
General Electric Company
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G01N G01N
inventional inventional
Holly Ann John William Alok Mani Anant Achyut James Anthony Luke Nathaniel
Comanzo Devitt Srivastava Setlur Ruud Brewer