Preparation and Characterization of Samarium Doped Strontium Titanate

被引：0
|
作者：
Huang Yongzhen [1 ,2 ]
Cheng Jigui [1 ]
Dong Jie
Xia Yonghong
机构：
[1] Hefei Univ Technol, Sch Mat Sci & Engn, Hefei 230009, Peoples R China
[2] Anhui Vocat & Tech Coll, Hefei 230051, Peoples R China
来源：
RARE METAL MATERIALS AND ENGINEERING | 2009年 / 38卷
关键词：
samarium doped strontium titanate; gel-casting; phase composition; sinterability; electrical conductivity; OXIDE FUEL-CELLS; ANODES;
D O I：
暂无
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Sr1-1.5xSmxTiO3 powders were prepared by gel-casting process. The effects of doping amount of samarium and sintering temperature on phase composition, sinterability and electrical conductivity of the Sr1-1.5xSmxTiO3 materials were investigated. The results showed that perovskite Sr1-1.5xSmxTiO3 powders can be obtained by calcining the dried gels at temperature above 1200 degrees C. Sintering temperature also has obvious influence on the densification of the Sr1-1.5xSmxTiO3 samples. Doping of samarium effectively improves the electrical conductivity of SrTiO3 samples. Electrical conductivity of the sintered Sr1-1.5xSmxTiO3 samples decreases as temperature increases from 500 to 850 degrees C. Maximum conductivity of 28.8 S.cm(-1) was achieved for Sr0.94Sm0.04TiO3 sample at 800 degrees C.
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页码：178 / 182
页数：5
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