Preparation and dielectric properties of BaO-Sm2O3-4TiO2 microwave ceramics with B2O3 and CuO addition sintered in low temperature

被引：2
|
作者：
Liu, Wei-liang [1 ]
Tang, Chun-bao [1 ]
Tan, Jun [1 ]
Mao, Du-song [1 ]
Tan, Jin-gang [1 ]
机构：
[1] Jingdezhen Ceram Inst, Jingdezhen 333001, Peoples R China
来源：
HIGH-PERFORMANCE CERAMICS V, PTS 1 AND 2 | 2008年 / 368-372卷
关键词：
low temperature sintering; BaSm2Ti4O12; ceramics; dielectric properties;
D O I：
10.4028/www.scientific.net/KEM.368-372.173
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：
BaCu(B2O5) (BCB) powder was prepared using BaO,CuO and B2O3 as the main materials. Microwave dielectric ceramics of tungsten-bronze-type BaSm2Ti4O12 (BST) were prepared by doping BCB as the sintering aid. The amount of BCB was varied from 1.0 to 10.0wt.%. The microstructure and dielectric properties of BST were investigated. The sintering temperature of BST ceramics with 6.0wt.% BCB addition can be effectively reduced to 900 degrees C, about 450 degrees C lower than that of pure BST ceramics. Good microwave dielectric properties of epsilon(r) = 62.38, Q x f = 4573 GHz and tau(f) = -27.65 ppm/degrees C were achieved.
引用
收藏
页码：173 / 175
页数：3
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