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
收藏
页码：9226 / 9229
页数：4
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