Temperature stable high-Q microwave dielectric ceramics in (1-x)BaTi4O9-xBaZn2Ti4O11 system

被引：27

作者：

Yu, Shengquan ^{[1
]}

Tang, Bin ^{[1
]}

Zhang, Shuren ^{[1
]}

Zhang, Xiao ^{[1
]}

机构：

[1] Univ Elect Sci & Technol China, State Key Lab Elect Thin Films & Integrated Devic, Chengdu 610054, Peoples R China

来源：

MATERIALS LETTERS | 2012年 / 67卷 / 01期

关键词：

Ceramics; Dielectrics; Microwave dielectric ceramics;

D O I：

10.1016/j.matlet.2011.10.007

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The microwave dielectric properties of (1 - x)BaTi4O9-xBaZn(2)Ti(4)O(11) ceramics were investigated by solid-state reaction technique for obtaining high-Q dielectric ceramics in BaO-ZnO-TiO2 system. And they were strongly determined by the chemical composition. As x was increased from 0.05 to 0.50, BaZn2Ti4O11 phase formed more and more. Therefore, the epsilon(r) decreased from 37.3 to 32.8 and the Q x f values first raised from 45,300 GHz to 60,600 GHz (x = 0.30) and then started to decline to 58,700 GHz (x = 0.40), and the tau(f) values varied gradually from 12 ppm/degrees C to 13 ppm/degrees C. 0.7BaTi(4)O(9)-0.3BaZn(2)Ti(4)O(11) ceramics sintered at 1240 degrees C for 3 h had excellent comprehensive microwave dielectric properties: epsilon(r) = 34.2, Q x f = 60,600 GHz and tau(f) = -2 ppm/degrees C. (C) 2011 Elsevier B.V. All rights reserved.

引用

页码：293 / 295

页数：3

共 19 条

[1] The homogeneity range and the microwave dielectric properties of the BaZn2Ti4O11 ceramics [J].