Abstract
The dielectric properties and the microstructures of 0.6Ba(Co1/3Nb2/3)O3-0.4Ba(Ni1/3Nb2/3)O3 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)O3-0.4Ba(Ni1/3Nb2/3)O3 ceramics can be sintered at 1270 °C due to the sintering aid of CuO addition. At 1270 °C, 0.6Ba(Co1/3Nb2/3)O3-0.4Ba(Ni1/3Nb2/3)O3 ceramics with 0.5 wt% CuO addition possesses a dielectric constant (εr) of 32.5, a Q × f value of 82,000 (9 GHz) and a temperature coefficients of resonant frequency (τf) of -21.2 ppm/°C. The CuO-doped 0.6Ba(Co1/3Nb2/3)O3-0.4Ba(Ni1/3Nb2/3)O3 ceramics can find applications in microwave devices requiring low sintering temperature.
Original language | English |
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Pages (from-to) | 355-359 |
Number of pages | 5 |
Journal | Journal of Alloys and Compounds |
Volume | 461 |
Issue number | 1-2 |
DOIs | |
Publication status | Published - 2008 Aug 11 |
All Science Journal Classification (ASJC) codes
- Mechanics of Materials
- Mechanical Engineering
- Metals and Alloys
- Materials Chemistry