材料科学
陶瓷
钛酸钡
压电
复合材料
烧结
铁电性
晶粒生长
粒度
电介质
流延
微观结构
微晶
作者
Satoshi Wada,K. Takeda,Takaaki Tsurumi,T. Kimura
出处
期刊:International Symposium on Micro-NanoMechatronics and Human Science
日期:2007-11-01
卷期号:: 372-376
被引量:2
标识
DOI:10.1109/mhs.2007.4420883
摘要
[110]-oriented barium titanate (BaTiO3) ceramics were prepared by templated grain growth (TGG) method. The degree of orientation along the [110] direction, F110, was measured using an X-ray diffraction (XRD) pattern by the Lotgering method. To obtain both a high density and a high F110, the preparation conditions were optimized. As for the results, BaTiO3-grain-oriented ceramics with a high density of more than 96 % were successfully prepared despite various F110 values from 0 to 98 %. These grain-oriented BaTiO3 ceramics were poled at 100degC, and their piezoelectric properties were measured for d31 and d33 piezoelectric constants. As for the results, the d31 values were almost constant at -50 pC/N despite various F110 values, while the d33 values increased with increasing F110 values, and at around an F110 of 85 %, d33 reached a maximum of 800 pC/N.
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