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Published in:
01-06-2015
Improving quality factor of Nd2MoO6 ceramics by removing moisture content
Published in: Journal of Materials Science: Materials in Electronics | Issue 6/2015
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Abstract
The effect of removing moisture content in starting raw materials on the microwave dielectric properties of Nd2MoO6 ceramics was investigated. The Nd2MoO6 ceramics were prepared by the conventional solid-state method with various sintering temperatures and sintering times. A maximum density of 6.08 g/cm3 was obtained for Nd2MoO6 ceramic, sintered at 1350 °C for 4 h. Dielectric constants (ɛ
r
) of 13.6–13.8 and quality factor (Q × f) of 18,400–66,400 GHz were obtained at sintering temperatures in the range 1250–1400 °C for 4 h. Dielectric constants (ɛ
r
) of 13.5–13.8 and quality factor (Q × f) of 44,000–66,400 GHz were obtained for sintering times in the range 2–6 h at a sintering temperature of 1350 °C. A dielectric constant (ɛ
r
) of 13.8, a quality factor (Q × f) of 66,400 GHz, and a temperature coefficient of resonant frequency (τ
f
) of −53 ppm/°C were obtained when Nd2MoO6 ceramics were sintered at 1350 °C for 4 h.