Lead-free piezoelectric ceramics of (Bi1/2Na1/2)TiO3-1/2(Bi2O3 center dot Sc2O3) system

被引：176

作者：

Nagata, H

Takenaka, T

机构：

来源：

JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS SHORT NOTES & REVIEW PAPERS | 1997年 / 36卷 / 9B期

关键词：

piezoelectric ceramics; lead-free; bismuth sodium titanate; (Bi1/2Na1/2)TiO3; electromechanical coupling factor;

D O I：

10.1143/JJAP.36.6055

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Bismuth sodium titanate, (Bi1/2Na1/2)TiO3 (BNT)-based solid solution, (1 - x)(Bi1/2Na1/2)TiO3-x1/2(Bi2O3 . Sc2O3) [BNST-100x], was studied in order to determine its dielectric, ferroelectric and piezoelectric properties as a new group of lead-free piezoelectric ceramics. Measurements of dielectric and piezoelectric properties show that the BNST-100x ceramics of composition near BNT composition have relatively low free permittivity, epsilon(33)(T)/epsilon(0) (=431) and high electromechanical coupling factor, k(33) (=0.42). These ceramics are good candidates for use as lead-free piezoelectric ceramics.

引用

页码：6055 / 6057

页数：3

共 9 条

[1] SOME PROPERTIES OF BISMUTH PEROVSKITES [J].