Microstructure, piezoelectric, ferroelectric and dielectric properties of Na0.5K0.5NbO3 single crystals prepared by seed-free solid-state crystal growth

被引：25

作者：

Zhang, Jinwei ^{[1
]}

Jiang, Minhong ^{[1
]}

Cheng, Gang ^{[1
]}

Gu, Zhengfei ^{[1
]}

Liu, Xinyu ^{[1
]}

Song, Jiageng ^{[1
]}

Li, Lin ^{[1
]}

Du, Yusong ^{[1
]}

机构：

[1] Guilin Univ Elect Technol, Dept Mat Sci & Engn, Guangxi Key Lab Informat Mat, Guilin, Peoples R China

来源：

FERROELECTRICS | 2016年 / 502卷 / 01期

基金：

中国国家自然科学基金;

关键词：

NKN single crystal; seed-free solid-state crystal growth; piezoelectric property; ferroelectric property; dielectric property; ELECTRICAL-PROPERTIES; CERAMICS; NA;

D O I：

10.1080/00150193.2016.1236235

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The Na0.5K0.5NbO3 single crystal was successfully grown by a seed-free solid-state crystal growth method using super-low content of LiBiO3 as a sintering aid. Microstructure, piezoelectric, ferroelectric and dielectric properties were investigated. The results show that well-paralleled lamellar ferroelectric ordering domains structure are present and no crack can be seen inside the single crystal. The best piezoelectric and dielectric properties (at 1kHz) of d(33) = 265pC/N, P-r = 27.4C/cm(2), epsilon = 738, tan = 0.04 appear at x = 0.40at% for (1-x)Na0.5K0.5NbO3-xLiBiO(3) single crystal. A higher remnant polarization P-r of 36.3C/cm(2) were obtained at x = 0.45 at%.

引用

页码：210 / 220

页数：11

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