|
|
Journal of the Korean Ceramic Society 1984;21(2): 121. |
$Sb_2O_3$와 ZnO를 첨가한 Barium Titanate의 유전성 |
윤기현, 김종우, 송효일 |
연세대학교 공과대학 요업공학과 |
Dielectric Properties of Barium Titanate with $Sb_2O_3$ and ZnO |
|
|
|
|
|
ABSTRACT |
The dielectric properties of $BaTiO_3$ containing 0~0.3mol% and ZnO respectively as additives were investigated as a function of temperature from $25^{circ}C$ to 14$0^{circ}C$ and frequency from 24 KHz to 15MHz. The density of sintered $BaTiO_3$ was increased with addition of increasing to 0.15mol% amounts of $Sb_2O_3$ and the dielectric constant was also increased. This is due to space charge polarization with Ba vacancies. Above 0.15mol% $Sb_2O_3$ the density was decreased and the dielectric constant was also decreased due to occuring the discharge through voids. The density of sintered $BaTiO_3$ was decreased with addition of increasing to 0.15mol% amounts of ZnO and the dielectric constant was decreased due to occuring the discharge through voids. Above 0.15mol% ZnO the density was increased and the dielectric constant was also increased, |
|
|
|