Surface thermometry in combustion diagnostics by sputtered thin films of thermographic phosphors
Surface thermometry in combustion diagnostics by sputtered thin films of thermographic phosphors
复制标题
通过热成像荧光粉溅射薄膜进行燃烧诊断中的表面测温
DOI：
10.1007/s00340-014-5803-4
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发表时间：
2014
期刊：
影响因子：
--
通讯作者：
A. Dreizler
中科院分区：
文献类型：
--
作者：
J. Pareja;C. Litterscheid;B. Kaiser;M. Euler;N. Fuhrmann;B. Albert;A. Molina;J. Ziegler;A. Dreizler
热成像荧光粉(TP)技术的准确性和坚固性依赖于使用低厚度、高强度发光和与表面高附着力的涂层。溅射沉积是燃烧诊断中表面测温用TPS涂层制备的一种替代方法。用射频磁控溅射方法在熔融二氧化硅和不锈钢衬底上沉积了薄膜。用X射线衍射仪、X射线光电子能谱和激光诱导发光分别研究了荧光粉薄膜的物理、化学和随温度变化的发光特性。结果表明，薄膜的发光特性必须在溅射沉积后进行热处理才能激活。该薄膜具有较高的温度灵敏度和较高的测温精度，适用于点式(0D)表面测温。对TPS薄膜发光特性的空间均匀性的评估表明，沉积在熔融二氧化硅上的薄膜可以用于空间分辨表面温度测量，而沉积在不锈钢上的薄膜需要改进以克服发光寿命的空间不均匀性。
The accuracy and robustness of the thermographic phosphors (TP) technique relies in the use of coatings with low thickness, high-intensity luminescent emission and high adhesion to the surfaces. Sputter deposition has been evaluated as an alternative for coating preparation of TPs for surface thermometry in combustion diagnostics. Thin films ofhave been deposited on fused silica and stainless steel substrates by radio frequency magnetron sputtering. Physical, chemical, and temperature-dependent luminescence properties of the phosphor films have been evaluated using X-ray diffraction, X-ray photoelectron spectroscopy and laser-induced luminescence, respectively. The results showed that the luminescence features of the thin films must be activated by heat treatment after sputter deposition. Thefilms exhibited appropriate temperature sensitivity with adequate precision of the temperature determination, proving to be suitable for pointwise (0D) surface thermometry. An evaluation of the spatial homogeneity of the luminescence properties, which has not been yet addressed in the literature for thin films of TPs, revealed that thinfilms deposited on fused silica can be used for spatially resolved surface thermometry while those deposited on stainless steel require improvements to overcome spatial inhomogeneities of the luminescence lifetimes.
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DOI：
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DOI：
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发表时间：
2009
期刊：
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