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Published in:
21-03-2016
Dielectric properties of Ba2Mg0.95Zn0.05WO6 ceramics at microwave frequency
Published in: Journal of Materials Science: Materials in Electronics | Issue 7/2016
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Abstract
Dielectric properties of Ba2Mg0.95Zn0.05WO6 ceramics at microwave frequency were examined with a view to their exploitation for
mobile communication. The Ba2Mg0.95Zn0.05WO6 ceramics were prepared by the conventional solid-state method. The X-ray diffraction patterns of the Ba2Mg0.95Zn0.05WO6 ceramics revealed that Ba2Mg0.95Zn0.05WO6 is the main crystalline phase, which is accompanied by small amounts of BaWO4 and Ba2WO5 as secondary phases. A maximum density of 6.72 g/cm3 was obtained for Ba2Mg0.95Zn0.05WO6 ceramic, sintered at 1650 °C for 2 h. Dielectric constant (ɛ
r
) of 17.9, quality factor (Q × f) of 157,000 GHz, and temperature coefficient of resonant frequency (τ
f
) of −35 ppm/°C were obtained for Ba2Mg0.95Zn0.05WO6 ceramics that were sintered at 1650 °C for 2 h.