(K0.5Na0.5)NbO3-Bi(Mg0.5Ti0.5)O3 solid solution: phase evolution, microstructure and electrical properties

被引：13

作者：

He, Fen ^{[1
]}

Chen, Xiuli ^{[1
]}

Chen, Jie ^{[1
]}

Wang, Yiliang ^{[1
]}

Zhou, Huanfu ^{[1
]}

Fang, Liang ^{[1
]}

机构：

[1] Guilin Univ Technol, Coll Mat Sci & Engn, Key Lab New Proc Technol Nonferrous Met & Mat, Guangxi Sci Expt Ctr Min Met & Environm,Minist Ed, Guilin 541004, Peoples R China

来源：

JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS | 2013年 / 24卷 / 11期

关键词：

FREE PIEZOELECTRIC CERAMICS; LEAD-FREE CERAMICS; SINTERING TEMPERATURE; DIELECTRIC-PROPERTIES; DEPENDENCE;

D O I：

10.1007/s10854-013-1409-6

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：

Lead-free piezoelectric ceramics with the composition of (1 - x)(K0.5Na0.5)NbO3-xBi(Mg0.5Ti0.5)O-3 [(1 - x)KNN-xBMT, 0 a parts per thousand currency sign x a parts per thousand currency sign 0.04] were synthesized via solid-state reaction method. X-ray diffraction patterns revealed that the orthorhombic-tetragonal phase transition was present for (1 - x)KNN-xBMT with increasing the content of BMT. The study of dielectric properties illustrated that both peaks of orthorhombic-tetragonal (T (O-T) ) and tetragonal-cubic (T (T-C) ) phase transitions shifted to lower temperature. Through adding BMT, the electrical properties of KNN ceramics were obviously improved. The optimized piezoelectric and ferroelectric properties with d (33) = 127 pC/N, k (p) = 36.58 %, P (r) = 22.1 mu C/cm(2) were obtained as x = 0.01.

引用

页码：4346 / 4350

页数：5

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