Synthesis of 0.4Pb(Mg1/3Nb2/3)O3–0.3Pb(Mg1/2W1/2)O3–0.3PbTiO3 Ceramics by Metal Alkoxide Method, and Its Dielectric Properties |
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| Authors: | Atsushi Aruga Yoshikazu Nakamura Tsuneharu Aoi Yoshihisa Watanabe Shigekazu Hirayama Shirou Fujimoto |
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| Affiliation: | Department of Materials Science and Engineering, National Defense Academy, Yokosuka 239, Japan |
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| Abstract: | 0.4Pb(Mg1/3Nb2/3)O3–0.3Pb(Mg1/2W1/2)O3–0.3PbTiO3+ x MgO ( x = 0 to 0.04) were prepared by a metal alkoxide method. The percent of perovskite phase of the calcined powders increased with increased calcination temperatures. About 89% of perovskite phase was obtained at 1050°C. The dielectric constant of the pellets fired at 1100°C was increased by the addition of 10 wt% excess Mg(OC2H5)2 and had a maximum value of 7532 at 1 kHz. |
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