Journal of the Korean Ceramic Society (한국세라믹학회지)

The Korean Ceramic Society (한국세라믹학회)
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Dielectric Properties of Barium Titanate with $Sb_2O_3$ and ZnO

$Sb_2O_3$와 ZnO를 첨가한 Barium Titanate의 유전성

  • 윤기현 (연세대학교 공과대학 요업공학과) ;
  • 김종우 (연세대학교 공과대학 요업공학과) ;
  • 송효일 (연세대학교 공과대학 요업공학과)
  • Published : 1984.02.01
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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.

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References

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