Temperature sensing with fluorescence intensity ratio technique in epoxy-based nanocomposite filled with Er³⁺-doped 7YSZ

详细信息    查看全文

• 作者：Yang Shen^a ; ^{shyang_mse@tsinghua.edu.cn} ; Xing Wang^b ; Hongcai He^b ; Yuanhua Lin^a ; Ce-Wen Nan^a
• 关键词：A. Polymer&ndash ; matrix composites (PMCs) ; A. Functional composites ; D. Non-destructive testing
• 刊名：Composites Science and Technology
• 出版年：2012
• 出版时间：21 May, 2012
• 年：2012
• 卷：72
• 期：9
• 页码：1008-1011
• 全文大小：412 K

文摘

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.