Sr1-xCaxBi2Ta2O9 piezoelectric ceramics with high mechanical quality factor

被引：45

作者：

Shibata, K ^{[1
]}

Shoji, K

Sakata, K

机构：

[1] Fac Engn, Ashikaga Inst Technol, Ashikaga, Tochigi 3268558, Japan

[2] Sci Univ Tokyo, Fac Sci & Technol, Chiba 2788510, Japan

来源：

JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS SHORT NOTES & REVIEW PAPERS | 2001年 / 40卷 / 9B期

关键词：

Bi layered structure; Sr1-xCaxBi2Ta2O9; ceramics; microstructure; mechanical quality factor; piezoelectric properties; Curie temperature; frequency constants; dielectric properties;

D O I：

10.1143/JJAP.40.5719

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The dielectric, ferroelectric and piezoelectric characteristics of Sr1-xCaBi2Ta2O9 (x = 0-1) ceramics were examined. The samples were prepared by a conventional ceramic technique at 1260 degreesC to 1340 degreesC for 2 h. The Curie temperature of samples gradually rose from 324 degreesC to 896 degreesC when x was increased. The coercive field E-c of the sample with x = 0.75 was approximately 16 MV/m, and the value of E-c was about 3 times that of x = 0. In the x = 0.75, the maximum value of the mechanical quality factor Q(m) was obtained, approximately 11000.

引用

页码：5719 / 5721

页数：3

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