Phosphor thermometry device for synchronized acquisition of luminescence lifetime decay and intensity on thermal barrier coatings
Abstract
A phosphor thermometry device includes a laser that generates a laser pulse onto a thermal barrier coating (TBC) applied onto a substrate. A metallic bond coat layer is on the substrate. A ceramic top coat layer is on the bond coat layer and includes an undoped layer and a doped sensing layer having co-doped first and second rare-earth luminescent dopants that emit respective first and second different emission wavelengths upon excitation by the laser pulse. A detector receives reflected, convoluted luminescence signals from the TBC. First and second photomultiplier devices detect respective first and second different emission wavelengths of the convoluted luminescence signals. A controller receives and processes signals generated from respective first and second photomultiplier devices and determines luminescence lifetime decay and intensity variations for each of the respective first and second rare-earth luminescent dopants for temperature monitoring of the TBC.
- Inventors:
- Issue Date:
- Research Org.:
- Univ. of Central Florida, Orlando, FL (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 2222046
- Patent Number(s):
- 11718917
- Application Number:
- 17/034,098
- Assignee:
- University of Central Florida Research Foundation, Inc. (Orlando, FL)
- DOE Contract Number:
- FE0031282
- Resource Type:
- Patent
- Resource Relation:
- Patent File Date: 09/28/2020
- Country of Publication:
- United States
- Language:
- English
Citation Formats
Fouliard, Quentin, Ghosh, Ranajay, and Raghavan, Seetha. Phosphor thermometry device for synchronized acquisition of luminescence lifetime decay and intensity on thermal barrier coatings. United States: N. p., 2023.
Web.
Fouliard, Quentin, Ghosh, Ranajay, & Raghavan, Seetha. Phosphor thermometry device for synchronized acquisition of luminescence lifetime decay and intensity on thermal barrier coatings. United States.
Fouliard, Quentin, Ghosh, Ranajay, and Raghavan, Seetha. Tue .
"Phosphor thermometry device for synchronized acquisition of luminescence lifetime decay and intensity on thermal barrier coatings". United States. https://www.osti.gov/servlets/purl/2222046.
@article{osti_2222046,
title = {Phosphor thermometry device for synchronized acquisition of luminescence lifetime decay and intensity on thermal barrier coatings},
author = {Fouliard, Quentin and Ghosh, Ranajay and Raghavan, Seetha},
abstractNote = {A phosphor thermometry device includes a laser that generates a laser pulse onto a thermal barrier coating (TBC) applied onto a substrate. A metallic bond coat layer is on the substrate. A ceramic top coat layer is on the bond coat layer and includes an undoped layer and a doped sensing layer having co-doped first and second rare-earth luminescent dopants that emit respective first and second different emission wavelengths upon excitation by the laser pulse. A detector receives reflected, convoluted luminescence signals from the TBC. First and second photomultiplier devices detect respective first and second different emission wavelengths of the convoluted luminescence signals. A controller receives and processes signals generated from respective first and second photomultiplier devices and determines luminescence lifetime decay and intensity variations for each of the respective first and second rare-earth luminescent dopants for temperature monitoring of the TBC.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2023},
month = {8}
}
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