Comparison between thin film and bonded powder phosphors for thermographic sensing in gas turbine engines
Comparison between thin film and bonded powder phosphors for thermographic sensing in gas turbine engines
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用于燃气涡轮发动机热成像传感的薄膜荧光粉和粘结粉末荧光粉的比较
DOI：
10.1109/19.836322
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发表时间：
2000
期刊：
影响因子：
--
通讯作者：
J. E. Mutton
中科院分区：
文献类型：
--
作者：
Ian P. McClean;A. Simons;C. B. Thomas;J. E. Mutton
在罗尔斯-罗伊斯燃气涡轮机发动机中测试之前和之后，以薄膜和粘结粉末形式的YVO/sub 4/：Eu的测量表明薄膜的耐久性明显优于粘结粉末的耐久性;粘结粉末的损耗增加了500%。薄膜和粘结粉末的光致发光（PL）衰减时间的温度测量表现出良好的再现性。但薄膜的使用温度范围（660-800 K）和灵敏度（18.4 mK/sup-1/）远优于粘结粉末（700-800 K和14.6 mK/sup-1/）。这里的证据清楚地表明，薄膜在高温下具有更好的长寿命热成像传感性能。
Measurements of YVO/sub 4/:Eu in the form of a thin film and bonded powder, before and after testing in a Rolls-Royce gas turbine engine, indicate that the durability of the thin film was markedly better than that of the bonded powder; there was a 500% increase in loss for the bonded powder. Both thin films and bonded powders showed excellent reproducibility for photoluminescent (PL) decay-time temperature measurement. However, for the thin film, the useful temperature range (660-800 K) and sensitivity (18.4 mK/sup -1/) were much better than the bonded powder (700-800 K and 14.6 mK/sup -1/). Evidence here clearly implies that thin films have much better properties for long lifetime thermographic sensing at high temperatures.