Temperature sensing with fluorescence intensity ratio technique in epoxy-based nanocomposite filled with Er-doped 7YSZ |
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| Authors: | Yang Shen Xing Wang Hongcai He Yuanhua Lin Ce-Wen Nan |
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| Affiliation: | 1. State Key Lab of New Ceramics and Fine Processing, Department of Materials Science and Engineering, Tsinghua University, Beijing 100084, China;2. School of Microelectronics and Solid State Electronics, University of Electronic Science and Technology of China, Chengdu, China |
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| Abstract: | Luminescent nanocomposite of epoxy filled with Er3+-doped yttria-stabilized zirconia (7YSZ) is prepared with their luminescence spectra measured in the temperature range 123–423 K. Fluorescence intensity ratio (FIR) of the two Er3+ emissions is also obtained in the same temperature range. Er–7YSZ/epoxy nanocomposites exhibited higher sensitivity of 0.18%/K as compared with the bare Er–7YSZ particles. Luminescence thermometry is demonstrated by using the nanocomposites as temperature sensitive paint (TSP) with a resolution of 1 K. The advantage of FIR technique combined with the excellent thermal stability of epoxy matrix makes the Er–7YSZ/epoxy nanocomposites viable as temperature sensitive paint for aerodynamic applications. |
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| Keywords: | A Polymer&ndash matrix composites (PMCs) A Functional composites D Non-destructive testing |
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