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Title | Microwave Dielectric Properties of 0.7Ba(Mg,Ta)O_3-0.3Ba(Co,Nb)O_3Ceramics with Sintering Temperature |
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Authors | 이문기(Lee, Moon-Kee) ; 김남영(Kim, Nam-Young) ; 이영희(Lee, Young-Hie) |

Page | pp.110-114 |

ISSN | 1975-8359 |

Keywords | 0.7Ba(Mg{ frac}_{1}{3}Ta{ frac}_{1}{3})O_3-0.3Ba({ frac}_{1}{3}Nb{ frac}_{1}{3})O_3 ; Dielectric constant ; Quality factor ; Temperature coefficient of resonant frequency |

Abstract | 0.7Ba(Mg{ frac}_{1}{3}Ta{ frac}_{1}{3})O_3-0.3Ba({ frac}_{1}{3}Nb{ frac}_{1}{3})O_3ceramics were prepared by the conventional mixed oxide method. The ceramics were sintered at the temperature of 1500~1575[°C] for 5 hours in air. The microwave dielectric properties of the specimens were investigated with sintering temperature. The 0.7BMT-0.3BCN ceramics showed typical XRD patterns of the complex perovskite structure. Dielectric constant and quality factor were increased with increasing the sintering temperature. In the case of the specimens sintered at 1575[°C] for 5 hours, dielectric constant, quality factor and temperature coefficient of resonant frequency were good values of 28,23545 at 10[㎓] and -1.2 [ppm/°C], respectively. |