Fabrication and Optical Properties of Sm2Zr2O7-NiCr2O4
Fabrication and Optical Properties of Sm2Zr2O7-NiCr2O4
复制标题
Sm2Zr2O7-NiCr2O4的制备及光学性能
DOI：
10.4028/www.scientific.net/kem.512-515.459
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发表时间：
2012-06
期刊：
影响因子：
--
通讯作者：
Zhu, S. Z.
中科院分区：
文献类型：
--
作者：
Li, T.;Liu, L.;Xu, Q.;Zhu, S. Z.
Sm 2 Zr 2 O 7具有优异的热性能，是下一代热障涂层的理想材料之一。但在高温下，由于辐射导热，稀土锆酸盐的热导率增加。为了降低稀土锆酸盐的辐射传导，引入了对红外光子有强烈吸收作用的NiCr 2 O 4。采用共沉淀法制备了NiCr 2 O 4粉末。采用无压烧结法制备了不同NiCr 2 O 4含量的Sm 2 Zr 2 O 7-NiCr 2 O 4块材。利用XRD和SEM对样品的物相和显微结构进行了表征。还研究了其光吸收特性。随着NiCr 2 O 4含量的增加，复合材料的吸光率普遍高于无压烧结法制备的纯Sm 2 Zr 2 O 7。吸收率的提高将潜在地降低稀土锆酸盐的辐射传导。
Sm2Zr2O7 is one of the promising candidate materials for the next generation thermal barrier coatings because of its excellent thermal properties. But at high temperature the thermal conductivity of rare-earth zirconate increases because of radiation conduction. NiCr2O4, which can absorb the infrared photons intensely, was introduced to reduce the radiation conduction of rare-earth zirconate. NiCr2O4 powder was prepared by coprecipitation. The bulks of Sm2Zr2O7— NiCr2O4 with different content of NiCr2O4 were prepared by using non-pressure sintering. The phase and microstructure of the samples were characterized by XRD and SEM. The optical absorption was also investigated. The absorptivity of the composite, which was generally higher than that of pure Sm2Zr2O7 prepared by coprecipitation and non-pressure sintering, was enhanced with the content of NiCr2O4 increasing. The enhancement of absorptivity will reduce the radiation conduction of rare-earth zirconate potentially.
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DOI：
10.1002/9780470294758.ch59
发表时间：
2002-06
期刊：
--
影响因子：
--
作者：
Dongming Zhu;J. Nesbitt;T. Mccue;C. Barrett;Robert Miller
通讯作者：
Dongming Zhu;J. Nesbitt;T. Mccue;C. Barrett;Robert Miller
DOI：
10.1007/bf02101337
发表时间：
1993-09
期刊：
International Journal of Infrared and Millimeter Waves
影响因子：
--
作者：
J. Tian;W. R. Zhu;H. Li
通讯作者：
J. Tian;W. R. Zhu;H. Li
DOI：
10.1002/9780470294758.ch51
发表时间：
2002-05
期刊：
--
影响因子：
--
作者：
Dongming Zhu;Robert Miller
通讯作者：
Dongming Zhu;Robert Miller
影响因子：
4.5
作者：
Geunsik Lim;A. Kar
通讯作者：
Geunsik Lim;A. Kar