Effects of additives on microstructures and microwave dielectric properties of ZnNb2O6 ceramics

被引:30
作者
Zhang, YC [1 ]
Li, LT [1 ]
Yue, ZX [1 ]
Gui, ZL [1 ]
机构
[1] Tsing Hua Univ, Dept Mat Sci & Engn, State Key Lab New Ceram & Fine Proc, Beijing 100084, Peoples R China
来源
MATERIALS SCIENCE AND ENGINEERING B-SOLID STATE MATERIALS FOR ADVANCED TECHNOLOGY | 2003年 / 99卷 / 1-3期
关键词
microwave dielectric ceramics; ZnNb2O6; low temperature sintering;
D O I
10.1016/S0921-5107(02)00525-1
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
The effects of CuO, Bi2O3 and V2O5 additions on the microstructure and the microwave dielectric properties of ZnNb2O6 ceramics were investigated systematically. The sintering temperature of ZnNb2O6 ceramics with CuO, Bi2O3 and V2O5 (CuBiv) additions can be effectively reduced from 1150 to 890 degreesC. The presence of CuBiVZn-rich intergranular phase in the specimen was observed and was evidence of the formation of a liquid phase during sintering. The 1.5 wt.% CuBiV-doped ZnNb2O6 ceramics sintered at 890 degreesC have the optimum microwave dielectric properties. (C) 2002 Elsevier Science B.V. All rights reserved.
引用
收藏
页码:282 / 285
页数:4
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