Title:
A piezo-electric porcelain constituent and a manufacturing method for the same
Document Type and Number:
Japanese Patent JP6234709
Kind Code:
B2
Abstract:
The present invention relates, in particular, to a piezoelectric ceramic composition having a low hysteresis in the amount of electric charge generated with respect to pressure, and a large equivalent piezoelectric constant, as well as a production method therefor. Provided is a piezoelectric ceramic composition comprising two types of components, an A component and a B component having different charge generation tendencies in response to a compression force and a decompression force, (1-y) {(Na0.5,Bi0.5)0.95Ca0.05Bi4Ti4O15 + 0. 2 Wt% Mn} being the A component, and (y) SrBi4Ti4O15 being the B component, wherein the range for y is 0.05 ≤y ≤ 0.4, said piezoelectric ceramic composition having an equivalent piezoelectric constant within a specific range and a hysteresis of ±0.1% or less.
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Inventors:
Ryu Tagami
Yoshinobu Kubo
Toshihiro Fukushima
Kazuaki Kato
Yoshinobu Kubo
Toshihiro Fukushima
Kazuaki Kato
Application Number:
JP2013113388A
Publication Date:
November 22, 2017
Filing Date:
May 29, 2013
Export Citation:
Assignee:
Fuji Ceramics Co., Ltd.
International Classes:
C04B35/475; G01L1/16; H01L41/187
Domestic Patent References:
| JP6048825A | ||||
| JP11029356A | ||||
| JP2010013295A | ||||
| JP2010030832A | ||||
| JP2001158663A |
Foreign References:
| WO2009122916A1 |
Attorney, Agent or Firm:
Hiroshi Shimizu