BaTiO3이론조성과 BaCO3가 과잉인계에서 팽창과 상의 관한 연구

Effect of Abnormal Expansion in the Equimolecular Mixture BaCO3 and TiO2 Added Excess BaCO3

  • 김종옥 (배재대학교 무기재료공학과) ;
  • 이풍헌 (홍익공업전문대학교 요업과) ;
  • 임대영 (홍익공업전문대학교 요업과)
  • 발행 : 1989.06.01

초록

The reason of abnormal expansion in BaTiO3 synthesized in the equimolecular mixture and synthesized in Ba-rich region were investigated at the point of crystal and microstructure. The shrinkage and the expansion of the mixtures in BaCO3-TiO2 system were determined by the mass of BaCO3 added to the equimolecular BaCO3 and TiO2, Ba2TiO4 which was much formed and BaTi2O3 were important crystal in the reaction of Ba-rich region. Sintering phenomena of unreacted BaCO3 activity and the secondary phase caused to generate microcracks in the specimens.

키워드

참고문헌

  1. Ceramic Engineering for Dielectrics(3rd) Kiyoshi Okazaki
  2. J. Ceram. Assoc. Japan. v.66 no.3 On the Sintering Process of Barium Titanate Ceramics Especially on the Libration CO₂ from the Raw Mix at High Temperature Kiyoshi Okazaki
  3. 韓國窯業學會誌 v.22 no.6 Barium Titanate를 固相反應으로 合成할때 일어나는 異常膨脹에 關한 硏究 李應相;林大永
  4. 韓國窯業學會誌 v.23 no.4 Barium Titanate를 固相反應으로 合成할때 膨脹에 影響을 주는 雰圍氣燒成에 關한 硏究 李應相;林大永
  5. 韓國窯業學會誌 v.24 no.1 Barium Titanate를 固相反應으로 合成할때 수반하는 膨脹과 相과의 關係 李應相;林大永
  6. 한국요업학회지 v.24 no.5 BaCO₃-TiO₂계의 고상반응에 관한 연구 이응상;황성연;임대영
  7. J. Mat. Sci. v.19 no.1 Role and Behavior of Orthotitanate During the Processing of BaTiO₃ Based Ferroelectric Ceramic Beanger, A.;Matin, J.C.;Niepce, J.C.
  8. Fine Ceramic Hand Book Hamano