Superior Piezoelectric Properties in Potassium-Sodium Niobate Lead-Free Ceramics

被引：598
|
作者：
Xu, Kai [1 ]
Li, Jun [2 ]
Lv, Xiang [1 ]
Wu, Jiagang [1 ]
Zhang, Xixiang [2 ]
Xiao, Dingquan [1 ]
Zhu, Jianguo [1 ]
机构：
[1] Sichuan Univ, Dept Mat Sci, Chengdu 610064, Peoples R China
[2] King Abdullah Univ Sci & Technol, Div Phys Sci & Engn, Thuwal 239955, Saudi Arabia
来源：
ADVANCED MATERIALS | 2016年 / 28卷 / 38期
基金：
美国国家科学基金会;
关键词：
giant piezoelectricity; (K; Na)NbO3; nanodomains; phase boundaries; FREE PIEZOCERAMICS; TERNARY-SYSTEM; TEMPERATURE; STABILITY;
D O I：
10.1002/adma.201601859
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
A superior piezoelectric coefficient (d(33) = 570 +/- 10 pC N-1), the highest value reported to date in potassium-sodium niobate-based ceramics, is obtained in (1-x-y)K1-wNawNb1-zSbzO3-yBaZrO3-x-Bi0.5K 0.5HfO3 ceramics. This high d(33) value can be ascribed to the co-existence of "nano-scale strain domains" (1-2 nm) and a high density of ferroelectric domain boundaries. Therefore, ternary KNN-based ceramics demonstrate the potential for applications.
引用
收藏
页码：8519 / 8523
页数：5
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