Enhancement of piezoelectric properties of (LiCePr)-multidoped CaBi2Nb2O9 high temperature ceramics

被引：60
作者：
Peng, Zhihang [1 ]
Chen, Qiang [1 ]
Wang, Yadan [1 ]
Xin, Deqiong [1 ]
Xian, Dinquan [1 ]
Zhu, Jianguo [1 ]
机构：
[1] Sichuan Univ, Coll Mat Sci & Engn, Chengdu 610064, Peoples R China
来源：
MATERIALS LETTERS | 2013年 / 107卷
关键词：
Layered structures; Piezoelectric ceramics; Dielectric; Annealing; CaBi2Nb2O9; LEAD-FREE CERAMICS; FERROELECTRIC PROPERTIES; ELECTRICAL-PROPERTIES; STRUCTURAL DISTORTION;
D O I：
10.1016/j.matlet.2013.05.108
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Aurivillius type (LiCePr)-multidoped CaBi2Nb2O9 ceramics were prepared using the conventional mixed oxides route. The effects of the (LiCePr) additives on the structure and dielectric properties were studied. The piezoelectricity was significantly improved by the incorporation of (LiCePr) dopants. The Ca-0.9(Li0.5-Ce0.25Pr0.25)(0.1)Bi2Nb2O9 (CBN-LCP10) ceramics possess the optimum properties, and the d(33), k(p) and T-c values were found to be similar to 17.3 pC/N, 7.8% and similar to 939 degrees C, respectively. The thermal depoling behavior and electromechanical properties at elevated temperature were studied in detail. Both results demonstrate that CBN-LCP10 ceramics possess a stable piezoelectricity in a wide temperature range, making CBN-based ceramics promising for high temperature applications. (C) 2013 Elsevier B.V. All rights reserved.
引用
收藏
页码：14 / 16
页数：3
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