Effects of ethanol addition and Ba/Ti ratios on preparation of barium titanate nanocrystals via a spray pyrolysis method

被引：14
作者：
Wang, WN
Lenggoro, IW
Okuyama, K [1 ]
Terashi, Y
Wang, YC
机构：
[1] Hiroshima Univ, Grad Sch Engn, Dept Chem Engn, Higashihiroshima 7398527, Japan
[2] Kyocera Corp R&D Ctr, Kagoshima 8994312, Japan
来源：
JOURNAL OF THE AMERICAN CERAMIC SOCIETY | 2006年 / 89卷 / 03期
关键词：
D O I：
10.1111/j.1551-2916.2005.00892.x
中图分类号：
TQ174 [陶瓷工业]; TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
BaTiO3 nanocrystals were synthesized by using a low-pressure spray pyrolysis (SP) method. A new strategy was proposed to improve nanocrystal formation and phase evolution by ethanol addition and Ba/Ti molar ratio variation, respectively. A mixture of submicron and nanoparticles was found with SP of precursors without ethanol addition, while only nanoparticles could be obtained by ethanol addition. BaTiO3 crystal growth was improved by increasing the Ba/Ti ratio. In comparison, SP of the same precursor under atmospheric conditions resulted in only submicron particles with smooth surfaces and irregular morphology.
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收藏
页码：888 / 893
页数：6
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