Low temperature sintering and microwave dielectric properties of 0.6Ba(Co1/3Nb2/3)O3-0.4Ba(Ni1/3Nb2/3)O3

被引:34
|
作者
Hsu, Cheng-Hsing [1 ]
Shih, Chuan-Feng [2 ]
Yu, Cheng-Chi [3 ]
Tung, Hsin-Han [1 ]
Chung, Man-Hsiang [1 ]
机构
[1] Natl United Univ, Dept Elect Engn, Kung Ching Li 36003, Miao Li, Taiwan
[2] Natl Cheng Kung Univ, Dept Elect Engn, Tainan 70101, Taiwan
[3] Feng Chia Univ, Dept Commun Engn, Taichung 40724, Taiwan
关键词
ceramics; dielectric properties;
D O I
10.1016/j.jallcom.2007.06.092
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
The dielectric properties and the microstructures of 0.6Ba(Co1/3Nb2/3)O-3-0.4Ba(Ni1/3Nb2/3)O-3 ceramics with CuO additions (0.25-1 wt%) prepared with conventional solid-state route have been investigated. It is found that 0.6Ba(Co1/3Nb2/3)O-3-0.4Ba(Ni1/3Nb2/3)O-3 ceramics can be sintered at 1270 degrees C due to the sintering aid of CuO addition. At 1270 degrees C, 0.6Ba(Co1/3Nb2/3)O-3-0.4Ba(Ni1/3Nb2/3)O-3 ceramics with 0.5 wt% CuO addition possesses a dielectric constant (epsilon(r)) of 32.5, a Q x f value of 82,000 (9 GHz) and a temperature coefficients of resonant frequency (tau(f)) of -21.2 ppm/degrees C. The CuO-doped 0.6Ba(Co1/3Nb2/3)O-3-0.4Ba(Ni1/3Nb2/3)O-3 ceramics can find applications in microwave devices requiring low sintering temperature. (C) 2007 Elsevier B.V. All rights reserved.
引用
收藏
页码:355 / 359
页数:5
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