Microwave dielectric properties of low-fired Li2TiO3 ceramics doped with Li2O-MgO-B2O3 frit

被引：23
作者：
Chen, Guo-hua [1 ]
Hou, Mei-zhen [1 ]
Yang, Yun [1 ]
机构：
[1] Guilin Univ Elect Technol, Sch Mat Sci & Engn, Guilin 541004, Peoples R China
来源：
MATERIALS LETTERS | 2012年 / 89卷
关键词：
Ceramics; Li2O-MgO-B2O3; frit; Sintering; Dielectric properties;
D O I：
10.1016/j.matlet.2012.08.063
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The effects of Li2O-MgO-B2O3 (LMB) frit on the sintering characteristic, phase purity, microstructure and microwave dielectric properties of Li2TiO3 ceramics were investigated. The results show that a single-phase Li2TiO3 is formed and no secondary phase is formed. Addition of LMB frit can lower the sintering temperature of the ceramics by about 400 degrees C without deteriorating the microwave dielectric properties. Typically, the sample with 5 wt% LMB frit sintered at 850 degrees C shows good microwave dielectric properties with a permittivity of 21.4, a Q x f value of 64,100 GHz, and a temperature coefficient of resonant frequency of 26.9 ppm/degrees C. (C) 2012 Elsevier B.V. All rights reserved.
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收藏
页码：16 / 18
页数：3
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