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Erschienen in:
01.10.2013
Improved microwave dielectric properties of La(Mg0.5Sn0.5)O3 ceramic with Ba2+ substitution
Erschienen in: Journal of Materials Science: Materials in Electronics | Ausgabe 10/2013
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Abstract
The microwave dielectric properties of La(Mg0.5−xBaxSn0.5)O3 ceramics were examined with a view to their exploitation for wireless communications. The La(Mg0.5−xBaxSn0.5)O3 ceramics were prepared by the conventional solid-state method with various sintering temperatures. The La(Mg0.5−xBaxSn0.5)O3 ceramics contained La2Sn2O7. An apparent density of 6.54 g/cm3, a dielectric constant (\( \varepsilon_{r} \)) of 20.1, a quality factor (Q \( \times \) f) of 51,600 GHz, and a temperature coefficient of resonant frequency (\( \tau_{f} \)) of −82 ppm/°C were obtained for La(Mg0.43Ba0.07Sn0.5)O3 ceramics that were sintered at 1,550 °C for 4 h.