(K,Na)NbO3-Based Multilayer Piezoelectric Ceramics with Nickel Inner Electrodes

被引：126

作者：

Kawada, Shinichiro ^{[1
]}

Kimura, Masahiko ^{[1
]}

Higuchi, Yukio ^{[1
]}

Takagi, Hiroshi ^{[1
]}

机构：

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

来源：

APPLIED PHYSICS EXPRESS | 2009年 / 2卷 / 11期

关键词：

ELECTRICAL-PROPERTIES;

D O I：

10.1143/APEX.2.111401

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

A lead-free (K,Na)NbO3-based multilayer piezoelectric ceramic with nickel inner electrodes was obtained. Its normalized electric-field-induced thickness strain (S-max/E-max) was 360 pm/V, where S-max denotes the maximum strain and E-max denotes the maximum electric field. This value of 360 pm/V is about half that for the Pb (Zr,Ti)O-3-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)O-3-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. (C) 2009 The Japan Society of Applied Physics

引用

页数：3

共 16 条

[11] Lead-free piezoceramics [J].