Piezoelectric and dielectric characteristics of lithium potassium niobate ceramic system

被引：46

作者：

Chu, SY ^{[1
]}

Water, W

Juang, YD

Liaw, JT

Dai, SB

机构：

[1] Natl Cheng Kung Univ, Dept Elect Engn, Tainan, Taiwan

[2] Tung Nan Inst Technol, Dept Elect Engn, Taipei, Taiwan

[3] Tainan Teachers Coll, Dept Nat Sci Educ, Tainan, Taiwan

[4] Natl Cheng Kung Univ, Dept Phys, Tainan, Taiwan

来源：

FERROELECTRICS | 2003年 / 297卷

关键词：

Lithium potassium niobate; piezoelectric; dielectric; DSC;

D O I：

10.1080/00150190390244039

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

In this paper, xLi(2)O-yK(2)O-(1-x-y)Nb(2)O(5), x = 0 - 1 and y = 0 - 1, system was partially studied using Lithium and Potassium Niobate as sintering materials in order to reduce the sintering temperature. The prepared lithium potassium niobate ceramics are characterized using X-ray diffraction method and grain size have been calculated using SEM photographs; the phase transitions have been observed from DSC experiment. Finally, the piezoelectric and dielectric characteristics of these mixed ceramic systems are also investigated. The planar mode electromechanical coupling coefficient k(p) reaches 33.5% and two phase transitions (orthorhombic-tetragonal; tetragonal-cubic) have been observed.

引用

页码：11 / 17

页数：7

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