Full characterization for material constants of a promising KNN-based lead-free piezoelectric ceramic

被引：46
|
作者：
Qiao, Liao [1 ,2 ]
Li, Guo [1 ,2 ]
Tao, Hong [3 ]
Wu, Jiagang [3 ]
Xu, Zhuo [1 ,2 ]
Li, Fei [1 ,2 ]
机构：
[1] Xi An Jiao Tong Univ, Key Lab, Minist Educ, Elect Mat Res Lab, Xian 710049, Shaanxi, Peoples R China
[2] Xi An Jiao Tong Univ, Sch Elect & Informat Engn, Int Ctr Dielect Res, Xian 710049, Shaanxi, Peoples R China
[3] Sichuan Univ, Dept Mat Sci, Chengdu 610064, Peoples R China
来源：
CERAMICS INTERNATIONAL | 2020年 / 46卷 / 05期
基金：
中国国家自然科学基金;
关键词：
Elastic properties; Piezoelectric properties; Dielectric properties; Ferroelectric properties; PZT CERAMICS; IMPEDANCE;
D O I：
10.1016/j.ceramint.2019.11.009
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：
Potassium-sodium niobate (K1-xNaxNbO3, referred to as KNN) solid solutions, which are an important type of lead-free piezoelectric materials possessing environmentally friendly features, good piezoelectric response and high Curie temperature, have attracted considerable attention in replacing lead-based ceramics. In order to promote the application of KNN-based ceramics in piezoelectric devices, we characterized a complete set of material constants of a high performance KNN-based ceramic, that is 0.965(K0.48Na0.52) (Nb0.96Sb0.04)O-3-0.035Bi(0.)(5)Na(0.5)Zr(0.15)Hf(0.)(75)O(3) (KNNS-BNZH), whose Curie temperature is 235 'C, piezoelectric coefficient d(33) is 380 pC/N and electromechanical coupling factor k(33) is 70%. These results will benefit the design of piezoelectric transducers and actuators using lead-free piezoelectric ceramics.
引用
收藏
页码：5641 / 5644
页数：4
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