Microwave dielectric properties of Li2ZnTi3O8 ceramics doped with Bi2O3

被引：25
|
作者：
Lu, Xuepeng [1 ]
Zheng, Yong [1 ]
Zhou, Bin [1 ]
Dong, Zuowei [1 ]
Cheng, Peng [1 ]
机构：
[1] Nanjing Univ Aeronaut & Astronaut, Coll Mat Sci & Technol, Nanjing 210016, Jiangsu, Peoples R China
来源：
CERAMICS INTERNATIONAL | 2013年 / 39卷 / 08期
基金：
中国国家自然科学基金;
关键词：
Sintering; Dielectric properties; Microstructure; Ceramics; LTCC APPLICATIONS; ADDITIVES;
D O I：
10.1016/j.ceramint.2013.05.095
中图分类号：
TQ174 [陶瓷工业]; TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
The effects of Bi2O3 on the sintering temperature, phase composition, microstructure and microwave dielectric properties of Li2ZnTi3O8 ceramics are investigated. The addition of Bi2O3 can effectively reduce the sintering temperature of Li2ZnTi3O8 ceramic from 1075 to 950 degrees C. Only a single phase Li2ZnTi3O8 forms in the Li2ZnTi3O8 ceramic with less than 1.0 wt% Bi2O3 addition sintered at 950 degrees C. However, when the addition of Bi2O3 exceeds 1.0 wt%, the second phase Bi2Ti2O7 forms in the Li2ZnTi3O8 ceramics. Typically, 2.0 wt% Bi2O3-doped Li2ZnTi3O8 ceramic sintered at 950 degrees C can reach a maximum relative density of 97.4% and exhibits good microwave dielectric properties of epsilon(r)=27.8, Q x f=36386 GHz, tau(f)=-19.5 pprn/degrees C. (C) 2013 Elsevier Ltd and Techna Group S.r.l. All rights reserved.
引用
收藏
页码：9829 / 9833
页数：5
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