Microwave Dielectric Properties of $Mg_4Nb_2O_9$ Ceramics Produced by a Sol-gel Route

솔-젤법에 의해 제조한 $Mg_4Nb_2O_9$ 세라믹스의 마이크로파 유전특성

  • Published : 2007.06.21

Abstract

$Mg_4Nb_2O_9$ (MN) ceramics have been prepared by a sol-gel method. The powder characteristics, phase evolution, and microwave dielectric properties of the MN were investigated in various processing conditions such as sol-gel compositions, calcination, and sintering temperatures. A Qxfo value of 111,717 GHz with a ${\varepsilon}_r$ of 10.59 and a ${\tau}_f$ of $+1.736\;ppm/^{\circ}C$ was obtained after sintering at $1300^{\circ}C$ for 5 h.

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