Gelation and crystallization of barium titanate precursor using metal alkoxide

被引：0
|
作者：
Takahashi, Seiji [1 ]
Ohmura, Hideki [1 ]
Miki, Kenji [1 ]
Shimooka, Hirokazu [1 ]
Kuwabara, Makoto [1 ]
机构：
[1] Kyushu Inst of Technology, Fukuoka, Japan
来源：
Nippon Seramikkusu Kyokai Gakujutsu Ronbunshi/Journal of the Ceramic Society of Japan | 1994年 / 102卷
关键词：
Aging of materials - Crystalline materials - Crystallization - Gelation - Hydrolysis - Perovskite - Powders - Shrinkage - Sol-gels - Synthesis (chemical);
D O I：
10.2109/jcersj.102.1182
中图分类号：
学科分类号：
摘要：
Relations between gelation and crystallization of a barium titanate precursor and experimental parameters of sol-gel processing were studied systematically. A crystalline barium titanate gel powder was obtained at room temperature through periods of hydrolysis, gelation and shrinkage from a precursor solution composed of Ba(OEt)2 and Ti(OiPr)4. The aging time enough to shrink the gel was required to obtain a crystalline powder after gelation. The obtained crystalline powder was pseudo-cubic perovskite and the primary particle was about 20 nm in diameter.
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页码：1182 / 1184
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