Journal of the Korean Ceramic Society (한국세라믹학회지)

The Korean Ceramic Society (한국세라믹학회)
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Effect of Bi2O3/Li2CO3 on Low Temperature Sintering and Dielectrics of BaTiO3 Ceramics

BaTiO3 저온 소결 및 유전상에 미치는 Bi2O3/Li2CO3의 영향

  • 윤기현 (연세대학교 공과대학 요업공학과) ;
  • 신현민 (연세대학교 공과대학 요업공학과) ;
  • 강동헌 (연세대학교 공과대학 요업공학과)
  • Published : 1989.06.01
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Abstract

Effect of Bi2O3/Li2CO3 on low temperature sinteirng and dielectric property of BaTiO3 ceramics has been investigated. For the specimen sintered at 110$0^{\circ}C$, it was densified to 96% of BaTiO3 theoretical density by the addition of 1.0-1.25w/o Bi2O3/Li2CO3. Maximum dielectric constant increased and Curie temperature lowered with the increase of Bi2O3/Li2CO3 content, which probably can be explained by thne substitution of Bi3+, Li1+ on BaTiO3 lattice. The volatilization of Li1+, resulting from the increase of soaking time at 110$0^{\circ}C$ leads to the increase of Curie temperature and tetragonality of the specimen.

Keywords

References

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