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Erschienen in:
01.11.2013
Enhancing the microwave dielectric properties of Nd (Mg0.5Sn0.5)O3 ceramics by substituting Nd3+ with Ca2+
Erschienen in: Journal of Materials Science: Materials in Electronics | Ausgabe 11/2013
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Abstract
The microwave dielectric properties of Nd(1−2x/3)Cax(Mg0.5Sn0.5)O3 ceramics were examined to evaluate their exploitation for mobile communication. Nd(1−2x/3)Cax(Mg0.5Sn0.5)O3 ceramics were prepared by the conventional solid-state method with various sintering temperatures. The X-ray diffraction patterns of the Nd2.9/3Ca0.05(Mg0.5Sn0.5)O3 ceramics revealed no significant variation of phase with the sintering temperature. Nd2.9/3Ca0.05(Mg0.5Sn0.5)O3 ceramics that were sintered at 1,550 °C for 4 h had the following properties: a density of 6.86 g/cm3, a dielectric constant (εr) of 19.3, a quality factor (Q × f) of 99,000 GHz, and a temperature coefficient of resonant frequency (τ
f
) of −65 ppm/°C.