High-power piezoelectric vibration characteristics of textured SrBi2Nb2O9 ceramics

被引：41

作者：

Kawada, Shinichiro ^{[1
]}

Ogawa, Hirozumi ^{[1
]}

Kimura, Masahiko ^{[1
]}

Shiratsuyu, Kosuke ^{[1
]}

Niimi, Hideaki ^{[1
]}

机构：

[1] Murata Mfg Co Ltd, Kyoto 6178555, Japan

来源：

JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS BRIEF COMMUNICATIONS & REVIEW PAPERS | 2006年 / 45卷 / 9B期

关键词：

high-power characteristics; large amplitude; SrBi2Nb2O9; SBN; bismuth layer-structured ferroelectrics; textured ceramics; vibration velocity; piezoelectricity;

D O I：

10.1143/JJAP.45.7455

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The high-power piezoelectric vibration characteristics of textured SrBi2Nb2O9 (SBN) ceramics, that is bismuth-layer-structured ferroelectrics, were studied in the longitudinal mode (33-mode) by constant current driving method and compared with those of ordinary randomly oriented SBN and widely used Pb(Ti,Zr)O-3 (PZT) ceramics. In the case of textured SBN ceramics, resonant properties are stable up to a vibration velocity of 2.6 m/s. Vibration velocity at resonant frequency increases proportionally with the applied electric field, and resonant frequency is almost constant in high-vibration-velocity driving. On the other hand, in the case of randomly oriented SBN and PZT ceramics, the increase in vibration velocity is not proportional to the applied high electric field, and resonant frequency decreases with increasing vibration velocity. The resonant sharpness Q of textured SBN ceramics is about 2000, even at a vibration velocity of 2.6m/s. Therefore, textured SBN ceramics are good candidates for high-power piezoelectric applications.

引用

页码：7455 / 7459

页数：5

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