Dielectric properties and crystal structure of La(Mg1/2Ti1/2)O3 ceramics with Mg2+ substituted by Co2+

被引：5

作者：

Chen, Yuan-Bin ^{[1
]}

机构：

[1] Chang Jung Christian Univ, Dept Engn & Management Adv Technol, Tainan 71101, Taiwan

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2011年 / 509卷 / 37期

关键词：

Dielectric; Dielectric resonators; Microwave ceramics;

D O I：

10.1016/j.jallcom.2011.06.119

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Solid solutions of (1 - x) La(Co1/2Ti1/2)O-3-xLa(Mg1/2Ti1/2)O-3 were used to prepare La(Mg1-xCox)(1/2)Ti1/2O3 using solid-state synthesis. X-ray diffraction patterns of the sintered samples revealed single phase formation. A maximum density of 6.01 g/cm(3) was obtained for La(Mg1-xCox)(1/2)Ti1/2O3 (x = 1) ceramics sintered at 1375 degrees C for 4 h. The maximum values of the dielectric constant (epsilon(r) = 29.13) and the quality factor (Q x f = 80,000 GHz) were obtained for La(Mg1-xCox)(1/2)Ti1/2O3 with 1 wt% ZnO additive sintered at 1375 degrees C for 4 h. The temperature coefficient of resonant frequency tau(f) was -59 ppm/degrees C for x = 0.3. (C) 2011 Elsevier B. V. All rights reserved.

引用

页码：9226 / 9229

页数：4

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