Preparation of low-temperature sinterable BaCe0.8Sm0.2O3 powder by autoignition technique

被引:31
作者
Chakroborty, A [1 ]
Das Sharma, A [1 ]
Maiti, B [1 ]
Maiti, HS [1 ]
机构
[1] Cent Glass & Ceram Res Inst, Electroceram Div, Kolkata 700032, W Bengal, India
关键词
barium cerate; autoignition; citrate-nitrate gel;
D O I
10.1016/S0167-577X(02)00886-8
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
Samarium-doped barium cerate powder has been synthesized by autoignition of citrate-nitrate gel. It has been found that the ratio of citrate/nitrate ions present in the initial solution plays an important role in controlling the enthalpy of the autoignition reaction as well as the get decomposition temperature. Near phase pure material is obtained at a calcination temperature of only 850 degreesC and a sintered density of more than 99% of theoretical value is obtained at a temperature as low as 1300 degreesC. (C) 2002 Elsevier Science B.V All rights reserved.
引用
收藏
页码:862 / 867
页数:6
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