Layered piezoelectric ceramics for fine-tolerance resonator applications

被引：20

作者：

Ando, A ^{[1
]}

Kimura, M ^{[1
]}

Minamikawa, T ^{[1
]}

Sakabe, Y ^{[1
]}

机构：

[1] Murata Mfg Co Ltd, Kyoto, Japan

来源：

INTERNATIONAL JOURNAL OF APPLIED CERAMIC TECHNOLOGY | 2005年 / 2卷 / 01期

关键词：

D O I：

10.1111/j.1744-7402.2005.02001.x

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Double-layered piezoelectric ceramic resonators were fabricated using layer stacking with lead-titanate-based ceramics and strontium-bismuth-niobate (SBN)-based ceramics, which are extremely stable against temperature changes or high-ternperature retention. Single-mode resonant characteristics of the second harmonic thickness-extensional (TE2) mode vibration can easily be obtained in those resonators. The dispersion curves of the TE2 vibrations were calculated and the results can explain the single-mode resonant phenomenon in the TE2 mode. SBN-based ceramic materials are quite adequate for the fine-tolerance resonator applications, because their electromechanical coupling coefficients are sufficiently small. Strontium site substitutions for SBN improved the ternperature coefficient of frequency.

引用

页码：33 / 44

页数：12

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