Journal article
Spectroscopic determination of thermal impulse in sub-second heating events using lanthanide-doped oxide precursors and phenomenological modeling
Journal of applied physics, Vol.120(8), p.83102
08/28/2016
Abstract
Using a mixture of crystalline-Ho:ZrO2, precursor-Dy:Y2O3, and precursor-Eu:ZrO2 nanoparticles we develop thermal impulse sensors capable of measuring equivalent isothermal temperatures and durations during a heating event, with response times of < 100 ms, and a temperature range of at least 673K to 1173 K. In order to determine the temperature and duration from the sensors after the heating event we measure the sensors' fluorescence spectrum, which is then compared with lab based calibration data. By using two precursor materials with different reaction kinetics we are able to extract both temperature and duration. Based on blind sample testing we find that the sensors and calculation method are accurate for measuring temperature and duration, but currently suffer a lack of precision due to difficulties in producing homogeneously heated samples. Published by AIP Publishing.
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Details
- Title
- Spectroscopic determination of thermal impulse in sub-second heating events using lanthanide-doped oxide precursors and phenomenological modeling
- Creators
- Benjamin R. Anderson - Washington State University SpokaneRay Gunawidjaja - Washington State UniversityPatrick Price - Washington State University SpokaneHergen Eilers - Washington State University Spokane
- Publication Details
- Journal of applied physics, Vol.120(8), p.83102
- Academic Unit
- Institute for Shock Physics
- Publisher
- Amer Inst Physics
- Number of pages
- 10
- Grant note
- HDTRA1-15-1-0044 / Defense Threat Reduction Agency; United States Department of Defense
- Identifiers
- 99900876137701842
- Language
- English
- Resource Type
- Journal article