Microstructure and electrical properties of cerium-modified bismuth-layer 0.85Bi4Ti3O12-0.15LiNbO3 piezoelectric ceramics

被引：0
作者：
Jiang, Xiangping [1 ]
Yang, Fan [1 ]
Chen, Chao [1 ]
Tu, Na [1 ]
机构：
[1] Jiangxi Key Laboratory of Advanced Ceramic Materials, Department of Material Science and Engineering, Jingdezhen Ceramic Institute, Jingdezhen, 333001, Jiangxi
来源：
Kuei Suan Jen Hsueh Pao/Journal of the Chinese Ceramic Society | 2014年 / 42卷 / 12期
关键词：
Bismuth layer-structured; Bismuth titanate; Cerium modified; Microstructure; Piezoelectric ceramics;
D O I：
10.7521/j.issn.0454-5648.2014.12.05
中图分类号：
学科分类号：
摘要：
The cerium modified 0.85Bi4Ti3O12-0.15LiNbO3(BTO-LN) piezoelectric ceramics were synthesized by a conventional solid state process. The effect of cerium addition on the microstructure and electrical properties of the ceramics was investigated. The 0.85Bi4Ti3O12-0.15LiNbO3 based ceramics possess a pure three-layer Aurivillius-type structure. The piezoelectric properties of the ceramics are enhanced and the dielectric loss is decreased after cerium doping. The Curie temperature, TC, decreases from 653 to 617 ℃ with increasing the cerium content. The piezoelectric constant, d33, dielectric loss, tanδ, and mechanical quality factor, Qm, for the BTO-LN ceramics with CeO2 addition of 0.75% are 25 pC/N, 0.10% and 2 895, respectively. The higher TC (i. e., 617 ℃) and the stable piezoelectric properties are obtained. It is indicated that the cerium modified BTO-LN piezoelectric ceramics are a promising candidate for high-temperature applications. ©, 2014, Chinese Ceramic Society. All right reserved.
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页码：1501 / 1506
页数：5
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