Novel temperature stable Li2TiO3-based microwave dielectric ceramics with low loss

被引：9

作者：

Zhang, Yi-Ding ^{[1
,2
]}

Han, Jun ^{[3
]}

Liang, Rui ^{[4
]}

Zhou, Di ^{[1
,2
,5
]}

机构：

[1] Xi An Jiao Tong Univ, Minist Educ, Elect Mat Res Lab, Key Lab, Xian 710049, Shaanxi, Peoples R China

[2] Xi An Jiao Tong Univ, Int Ctr Dielect Res, Xian 710049, Shaanxi, Peoples R China

[3] Jiangsu Baoli Asphalt Co LTD, Wuxi 214422, Jiangsu, Peoples R China

[4] China Univ Min & Technol, Sch Informat & Elect Engn, Xuzhou 221116, Jiangsu, Peoples R China

[5] Xi An Jiao Tong Univ, Suzhou Acad, Suzhou 215123, Jiangsu, Peoples R China

来源：

MATERIALS LETTERS | 2015年 / 153卷

基金：

中国国家自然科学基金;

关键词：

Dielectrics; Ceramics; Temperature stable material; Low loss; Microwave dielectric properties; PHASE-STRUCTURE;

D O I：

10.1016/j.matlet.2015.04.035

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

In this work, dielectric properties of the (1-x)Li-2(Mg0.95Zn0.05)(3)Ti4O12-xLi(2)TiO(3) (x=0.727, 0.778, 0.821, and 0.889) ceramics system prepared by a conventional solid state reaction method have been investigated. As x value varied from 0.727 to 0.889, temperature coefficient of the ceramics varied from -6.98 ppm/degrees C to +17.89 ppm/degrees C. At x=0.778, the 0.222Li(2)(Mg0.95Zn0.05)(3)Ti4O12-0.778Li(2)TiO(3) ceramic sintered at 1260 degrees C was found to possess excellent properties with a relative dielectric constant similar to 20.2, a quality factor (Qxf) similar to 35,000 GHz at a resonant frequency of 7.93 GHz, and a temperature coefficient similar to-3.29 ppm/degrees C. X-ray diffraction and scanning electron microscopy were employed to study the phase composition and microstructure of the ceramics. (C) 2015 Elsevier B.V. All rights reserved.

引用

页码：118 / 120

页数：3