Synthesis, ferroelectric and piezoelectric properties of some (Na0.5Bi0.5)TiO3 system compositions

被引：42
作者：
Xu, Q [1 ]
Chen, XL
Wen, CA
Chen, ST
Kim, BH
Lee, JH
机构：
[1] Wuhan Univ Technol, Sch Mat Sci & Engn, Wuhan 430070, Peoples R China
[2] Chonbuk Natl Univ, Coll Engn, Chonju 561756, South Korea
来源：
MATERIALS LETTERS | 2005年 / 59卷 / 19-20期
基金：
中国国家自然科学基金;
关键词：
citrate method synthesis; perovskites; ceramics; ferroelectrics; piezoelectric materials;
D O I：
10.1016/j.matlet.2005.03.020
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Some (Na0.5Bi0.5)TiO3 (NBT) system compositions, including NBT, (Na0.5Bi0.5)(0.94)Ba0.06TiO3 (NBBT) and 0.4 wt.% CoO added NBBT (NBBTC), were prepared by a citrate method. The ferroelectric and piezoelectric properties of the resulting ceramics were investigated. The results confirm that the citrate method is a feasible and advantageous route to produce NBT system ceramics. NBBT ceramic made by the citrate method exhibits a high piezoelectric constant (d(33)) of 180 pC/N. An essential relation between the piezoelectric properties and the ferroelectric nature of the ceramics was detected. It was found that lowering the coercive field (E-c) and enhancing the remanent polarization (P-t) of NBT system ceramics simultaneously lead to desired piezoelectric properties. (c) 2005 Elsevier B.V All rights reserved.
引用
收藏
页码：2437 / 2441
页数：5
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