Phase formation and microstructure of BaxSr1-xTiO3 ceramics prepared by direct current arc discharge plasma process

被引:9
|
作者
Li, Shuangbin [1 ,2 ]
Yao, Ying [1 ]
Jia, Yongzhong [1 ]
Cui, Zhenhua [1 ,2 ]
机构
[1] Chinese Acad Sci, Qinghai Inst Salt Lakes, Key Lab Salt Lake Resources & Chem, Xining 810008, Peoples R China
[2] Univ Chinese Acad Sci, Beijing 100049, Peoples R China
基金
中国国家自然科学基金;
关键词
Ceramics; Electronic materials; Microstructure; Barium strontium titanate; BARIUM STRONTIUM-TITANATE; MICROWAVE; TEMPERATURE; POWDERS;
D O I
10.1016/j.matlet.2014.03.019
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
BaxSr1-xTiO3 (BST) ceramics are prepared above 2000 degrees C by direct current arc discharge plasma process in the argon atmosphere. The microstructure, phase and morphology are investigated. The results of samples show the formation of the perovskite BST phase. However, the biphasic phases are formed, which is consisted of Ba-rich and Sr-rich phases. It is found that with the Ba content increasing, a small amount of BaTi4O9 compound appears. It is beneficial for the crystal growth in the Ba-rich phase and Ba is more readily incorporated into BST crystal. (C) 2014 Elsevier B.V. All rights reserved.
引用
收藏
页码:235 / 237
页数:3
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