Piezoelectric properties of bismuth layer-structured ferroelectric ceramics with Sr-Bi-Ti-Ta system

被引：9
|
作者：
Nagata, H [1 ]
Takenaka, T [1 ]
机构：
[1] Sci Univ Tokyo, Fac Sci & Technol, Noda, Chiba 2788510, Japan
来源：
FERROELECTRICS | 2002年 / 273卷
关键词：
bismuth layer-structured ferroelectrics; Bi4Ti3O12; D-E hysteresis loop; electromechanical coupling factor; grain orientation; Curie temperature;
D O I：
10.1080/713716371
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Grain orientation effects of Sr-Bi-Ti-Ta system, especially SrxBi4-xTi3-xTaxO12 (m=3, x=0-2) [SBTT3(x)] ceramics which belong to a bismuth layer-structured ferroelectric (BLSF) family, are studied using the hot-forging (HF) method on their Piezoelectric properties. The grain orientation (HF) effects enhance the piezoelectric properties by a factor of two or more if compared with non-oriented ones. The electromechanical coupling factor, k(33) and the piezoelectric constant, d(33) of the grain oriented SBTT3(0.3) ceramics were relatively high values of 0.40 and 49.5 pC/N.
引用
收藏
页码：2737 / 2742
页数：6
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