Influence of Sintering Temperature on Phase Structure and Electrical Properties of Mg-doped (Li, Na, K)NbO3 Lead-Free Piezoelectric Ceramics

被引：0
|
作者：
Li, Hai-Tao [1 ]
Zhang, Bo-Ping [1 ]
Zhang, Qian [1 ]
Zhao, Gao-Lei [1 ]
Cui, Min [1 ]
机构：
[1] Univ Sci & Technol Beijing, Sch Mat Sci & Engn, Beijing 100083, Peoples R China
来源：
ISAF: 2009 18TH IEEE INTERNATIONAL SYMPOSIUM ON THE APPLICATIONS OF FERROELECTRICS | 2009年
关键词：
MICROSTRUCTURE;
D O I：
暂无
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
Mg-doped (Li, Na, K)NbO(3) lead-free piezoelectric ceramics with a nominal composition of [Li(0.06)(Na(0.5)K(0.5))(0.94)](Nb(0.198)Mg(0.005))O(3) (LNKNM) was prepared by normal sintering method. The microstructure and electrical properties were studied with a special emphasis on the influence of sintering temperature in the range of 920-1020 degrees C. A MPB bridging tetragonal and orthorhombic symmetry was found as the sintering temperature was raised from 980 to 1000 degrees C, whereby enhanced electrical properties were obtained. The highest d(33), k(p), T(C), and P(r) were 238 pC/N, 41.5%, 470 degrees C, and 38.2 mu C/cm(2), respectively.
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页码：159 / 163
页数：5
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