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
收藏
页码：5719 / 5721
页数：3
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