한국세라믹학회지 (Journal of the Korean Ceramic Society)

  • 제43권7호
  • /
  • Pages.421-426
  • /
  • 2006
  • /
  • 1229-7801(pISSN)
  • /
  • 2234-0491(eISSN)
한국세라믹학회 (The Korean Ceramic Society)
권호 표지
DOI QR코드

DOI QR Code

티탄산 바륨 스트론튬 (BaxSr1-xTiO3) 후막의 상전이온도와 가변 유전특성

Curie Temperature and Tunable Dielectric Properties of Barium Strontium Titanate Thick Films

  • 전소현 (경남대학교 재료공학과) ;
  • 김인성 (한국전기연구원 전자기소자연구그룹) ;
  • 민복기 (한국전기연구원 전자기소자연구그룹) ;
  • 송재성 (한국전기연구원 전자기소자연구그룹) ;
  • 윤존도 (경남대학교 재료공학과)
  • Jeon, So-Hyun (Department of Materials Engineering, Kyungnam University) ;
  • Kim, In-Sung (Electric and Magnetic Devices Group, Korea Electrotechnology Research Institute) ;
  • Min, Bok-Ki (Electric and Magnetic Devices Group, Korea Electrotechnology Research Institute) ;
  • Song, Jae-Sung (Electric and Magnetic Devices Group, Korea Electrotechnology Research Institute) ;
  • Yoon, Jon-Do (Department of Materials Engineering, Kyungnam University)
  • 발행 : 2006.07.01
PDF 다운로드
⟨ 이전 논문 다음 논문 ⟩

초록

[ $(BaSr)TiO_3$ ] thick films were prepared by tape casting method, using $BaTiO_3\;and\;SrTiO_3$ powder slurry in order to investigate dielectric properties i.e. dielectric constant, ${\varepsilon}_r$, Curie temperature, $T_c$. Grain growth within $(BaSr)TiO_3$ thick films was observed with increasing weight ratio of $BaTiO_3$. This observation can be explained by phenomena of substitution of $Sr^{2+}$ ion for $Bi^{2+}$ ion in the $BaTiO_3$ system. Also, the Curie temperature in $(BaSr)TiO_3$ thick films was shifted to lower temperature range with increasing $ SrTiO_3$. Furthermore, Curie temperature having maximum dielectric constant was in the range of $-40^{\circ}C\;to\;30^{\circ}C$, and hence sharper phase transformation occurred at Curie temperature. There occurred decrease in tunability and k-factor of $(Ba_{0.6}Sr_{0.4})TiO_3$ calculated from the dielectric constant, ${\varepsilon}_r$ above Curie temperature. In addition, above the $60^{\circ}C$, phase fixation was observed. This means that internal stress relief occurred with increasing $90^{\circ}$ domains.

키워드

참고문헌

  1. R. R. Tummala, 'Ceramic and Glass-Ceramic Packaging in the 1990s,' J. Am. Ceram. Soc., 74 [5] 895-908 (2001) https://doi.org/10.1111/j.1151-2916.1991.tb04320.x
  2. P. C. Jochi and M. W. Cole, 'Mg-Doped $Ba_{0.6}Sr_{0.4}TiO_3$ Thin Film for Tunable Microwave Mpplacations,' Appl. Phys. Lett., 77 [2] (2000)
  3. W.-S. Lee, C.-H. Kim, M.-S. Ha, S.-J. Jeong, J.-S. Song, and B.-K. Ryu, 'The Characterizations of Tape Casting for Low Temperature Sintered Microwave Ceramics Composite( in Korean),' J. Kor. Ceram. Soc., 42 [2] 132-39 (2005) https://doi.org/10.4191/KCERS.2005.42.2.132
  4. D. Koo and K. Auh, 'A Study on the Glass Fabrication and Sintering Behaviour of Glass/Ceramics for $SiO_2-TiO_2-RO$ (RO: BaO, CaO, SrO) System,' Kor. Assoc. Cryst. Growth, 8 [4] 189-94 (1999)
  5. D. S. Heo, W. S. Lee, S. J. Jeong, J. S. Song, F. Utsuno, and B. K. Ryu, 'Sintering and Dielectric Properties of $BaONd_2O_3- TiO_2$ Microwave Ceramics with Glass-Ceramic(in Korean),' J. Kor. Ceram. Soc., 41 [61] 444-49 (2004) https://doi.org/10.4191/KCERS.2004.41.6.444
  6. M. Halmi, G. Desgardin, and B. Raveau, 'Improved Lead Perovskite Compounds (PFN-PFT) for $Z_5U$ Capacitor Applications,' Adv. Ceram. Mater., 3 [1] 32-7 (1998)
  7. S.-G. Lee, Y.-H. Lee, and S.-G. Bae, 'A Study on the Structural and Dielectric Properties of (Ba,Sr,Ca)$TiO_3$ with Sintering Conditions,' J. Kor. Ins. Electrical, 14 [6] 460-65 (2001)
  8. I. S. Kim, J. S. Song, B. K. Min, and S. H. Jeon, 'Sintering and Tunability of Dielectrics Thick Film Added $MgO/ Li_2CO_3$ to BST,' pp. 17-20, CARTS Europe 2005, October, 2005
  9. Y.-G. Son, 'Electrical Properties of $Ba_{0.5}Sr_{0.5}TiO_3$ Thin Film with Various Heat Treatment Conditions(in Korean),' J. Kor. Ceram. Soc., 38 [5] 492-98 (2001)
  10. I. S. Kim, B. K. Min, J. S. Song, and S. Y. Jeon, 'A Study on the Sintering Condition and Electric Properties of BST Thick Film,' pp. 2013-14, Proceeding of the KIEE Annual Summer Conference, 2005
  11. K. H. Yoon, N. Y. Lee, and K. H. Jo, 'Dielectric Properties of $BaTiO_3-SrTiO_3$ System(in Korean),' J. Kor. Ceram. Soc., 21 [4] 341-48 (1984)
  12. J. H. Kim, 'Effect of Aggregates on the Sintering Behavior of $BaTiO_3$(in Korean),' J. Kor. Ceram. Soc., 28 [11] 926-34 (1991)
  13. B. Su, J. E. Holmes, C. Meggs, and T. W. Button, 'Dielectric and Microwave Properties of Barium Strontium Titanate (BST) Thick Films on Alumina Substrates,' J. Eur. Ceram. Soc., 23 2699-703 (2003) https://doi.org/10.1016/S0955-2219(03)00171-7
  14. J.-M. Cho and B. H. Kim, 'Dielectric Properties of $BaTiO_3$ Ceramics Having Abnormally Grown Grains(in Korean),' J. Kor. Ceram. Soc., 36 [9] 965-73 (1999)
  15. S. H. Jeon, I. S. Kim, J. S. Song, B. K. Min, and J. D. Yoon, 'Effect of the Addition of $Li_2CO_3$ on Dielectric Properties of Barium Strontium Titanate Thick Film with Annealing Condition,' pp. 311-12, Proceeding of the KIEEME Annual Summer Conference, 2006

피인용 문헌

  1. Analysis on the temperature dependent structural properties of Li2CO3 doped (Ba,Sr)TiO3 ceramics vol.26, pp.1-4, 2011, https://doi.org/10.1007/s10832-010-9624-5