Effects of Tb2O3 doping on microstructures and properties of alumina arc tube

被引：0
|
作者：
Huo, Di [1 ]
Sun, Xu-Dong [1 ]
Liu, Yi-Nong [2 ]
Chen, Bai-Ren [3 ]
Wang, Wei-Jun [3 ]
机构：
[1] Key Laboratory for Anisotropy and Texture of Materials, Northeastern University, Shenyang 110004, China
[2] School of Mechanical Engineering, University of Western Australia, Crawley, WA6009, Australia
[3] Shenyang Guang Da Lighting Equipment Co. Ltd., Shenyang 110056, China
来源：
Zhongguo Youse Jinshu Xuebao/Chinese Journal of Nonferrous Metals | 2007年 / 17卷 / 06期
关键词：
Alumina arc tube;
D O I：
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中图分类号：
学科分类号：
摘要：
The effect of Tb2O3 doping with different concentrations on the microstructures and mechanical properties of alumina arc tube was investigated under different sintering temperatures, and the influence of CaO doping alumina arc tube was also investigated for comparison. The results show that, contrasting to the coarse grain size and uniform microstructures of the alumina arc tube doped with CaO, heavy rare-earth Tb2O3 doping can decrease the grain size and enhance densification effectively. At relative lower sintering temperature, Tb2O3 doping can further eliminate the abnormal grain growth and improve the microstructure homogeneity and mechanical properties of transparent alumina arc tube.
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页码：865 / 870
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