(K,Na)NbO3-Based Multilayer Piezoelectric Ceramics with Nickel Inner Electrodes
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概要
- 論文の詳細を見る
A lead-free (K,Na)NbO3-based multilayer piezoelectric ceramic with nickel inner electrodes was obtained. Its normalized electric-field-induced thickness strain ($S_{\text{max}}/E_{\text{max}}$) was 360 pm/V, where $S_{\text{max}}$ denotes the maximum strain and $E_{\text{max}}$ denotes the maximum electric field. This value of 360 pm/V is about half that for the Pb(Zr,Ti)O3-based ceramics that are widely used. However, the (K,Na)NbO3-based multilayer ceramic can achieve comparable displacement to that attainable with Pb(Zr,Ti)O3-based multilayer ceramics by stacking more ceramic layers with smaller thicknesses. Additionally, it is easier to reduce the ceramic-layer thickness by using nickel electrodes. The developed (K,Na)NbO3-based multilayer ceramic is thus considered a good candidate for lead-free piezoelectric actuators.
- Japan Society of Applied Physicsの論文
- 2009-11-25
著者
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KIMURA Masahiko
Murata Mfg. Co., Ltd.
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TAKAGI Hiroshi
Murata Manufacturing Co., Ltd. R&D Division
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HIGUCHI YUKIO
Murata Manufacturing Co. Ltd.
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Kawada Shinichiro
Murata Manufacturing Co., Ltd., Nagaokakyo, Kyoto 617-8555, Japan
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Takagi Hiroshi
Murata Manufacturing Co. Ltd.
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Takagi Hiroshi
Murata Manufacturing Co. Ltd
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