Ceramic-electrode inter-diffusion of (K, Na)NbO3-based multilayer ceramics with Ag0.7Pd0.3 electrode

被引：16

作者：

Gao, Renlong ^{[1
]}

Chu, Xiangcheng ^{[1
]}

Huan, Yu ^{[1
]}

Zhong, Zuojin ^{[1
]}

Wang, Xiaohui ^{[1
]}

Li, Longtu ^{[1
]}

机构：

[1] Tsinghua Univ, Sch Mat Sci & Engn, State Key Lab New Ceram & Fine Proc, Beijing 100084, Peoples R China

来源：

JOURNAL OF THE EUROPEAN CERAMIC SOCIETY | 2015年 / 35卷 / 01期

关键词：

Lead-free piezoceramic; Potassium-sodium niobate; Multilayer ceramics; Interface; Diffusion;

D O I：

10.1016/j.jeurceramsoc.2014.07.034

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：

The (K, Na) NbO3 (KNN) based multilayer ceramics with Ag0.7Pd0.3 inner electrode were fabricated by tape casting and cofiring processes. The ceramic electrode inter-diffusion was studied by an energy dispersive X-ray spectroscopy with a precise spacial resolution attached to a transmission electron microscope. The results showed that the inter-diffusion occurred with elements migration through an interface zone. The distinct lattice image of the ceramic electrode interface was obtained by a high-resolution transmission electron microscope. The lattice of KNN ceramic and Ag/Pd alloy interlaced with each other along the interface with slight lattice distortion. The results showed that the ceramic electrode interface was very sharp with a width of about 5 nm. The sharp interface is good for the KNN-based multilayer ceramics with Ag/Pd electrode to be applied as promising substitutes for lead-based multilayer ones. (C) 2014 Elsevier Ltd. All rights reserved.

引用

页码：389 / 392

页数：4

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