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초록
(BaSr)TiO3 (BST) thick films were prepared by tape casting method, using BaTiO3 and SrTiO3 powder slurry and their dielectric properties were investigated. With an additive, Li2CO3, the sintering temperature was lowered by 200℃. Sintering density was 5.7 g/cm3 and the BST thick films exhibited a maximum dielectric constant, tunability at temperatures near phase transition point. Whilst their characteristics were deteriorated above the phase transition temperature, they were unchanged below the phase transition temperature, which is presumedly due to the acceleration of 90o domain formation, its contribution to the relaxation of internal stress and the increase in sintering according to the replacement of Li.
키워드
BST; Li2CO3; tunability; dielectrics properties
- 제목
- 티탄산 바륨 스트론튬(BaxSr1-xTiO3)에 Li2CO3 첨가한 후막의 저온소결과 가변 유전특성
- 제목 (타언어)
- Low Temperature Sintering and Tunable Dielectrics Properties of Thick Films added of Li2CO3 on BST
- 저자
- 전소현; 김인성; 정순종; 송재성; 윤존도
- 발행일
- 2006-12
- 저널명
- 한국재료학회지
- 권
- 16
- 호
- 12
- 페이지
- 747 ~ 753