• Electrical & Electronic Materials
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• v.10 no.7
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• pp.674-681
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• 1997

Ternary compound ceramics, (1-y-x) BaTiO$_3$-y SrTiO$_3$-x MgTiO$_3$(0.00 x 0.20), were fabricated by the conventional ceramic process. The structural and dielectric properties of specimens were investigated while varying the composition and sintering temperature(1,200~1,45$0^{\circ}C$) in order to obtain the optimum condition of capacitor. As is well known, Curie temperature(T$_{c}$) of high dielectric-based ceramic(BaTiO$_3$) was shifted and temperature of capacitance was decreased in according to increase of solid solution with (Sr, Mg)TiO$_3$. As a result, a suitable condition of compound rate for capacitor was obtained such as the BSM-11(0.8BaTiO$_3$-0.1SrTiO$_3$-0.1MgTiO$_3$), and sintering temperature was sintered at 1,25$0^{\circ}C$ for two hours. In this case, dielectric constant<1,300, dielectric loss(tan$\delta$)<0.03, and the variation rate of capacitance had less than 3% in the range -10~7$0^{\circ}C$.>.

• Proceedings of the KIEE Conference
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• 1996.07c
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• pp.1516-1519
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• 1996

In this paper, a study on the electrical properties of ternary compound ceramics $[(1-y-x)BaTiO_{3}-ySrTiO_{3}-xMgTiO_3]$ fabricated 7 samples with each mol[%] by using the mixed oxide method. In this case, the sintering temperature were at $1,250[^{\circ}C]$ for 2[hr]. Also made ceramic capacitors from 7 samples, temperature coefficient of the capacitance and the variation of relative dielectric constants and loss with fixed frequency (1KHZ) were studied. In some ceramic capacitors, has shown very good properties of the dielectric constants and loss. In case of BSM-11 ceramic capacitor, is sure to the commercial capacitor which shows steady properties.