Journal of the Korean Chemical Society (대한화학회지)

Korean Chemical Society (대한화학회)
권호 표지

The Synthesis of $BaTiO_3$ Powder by Sol-Gel Process

졸-겔법에 의한 티탄산 바륨 분말 합성

  • 도길명 (경남대학교 자연과학대학 화학과) ;
  • 김일출 (경남대학교 자연과학대학 화학과) ;
  • 박대욱 (경남대학교 자연과학대학 화학과)
  • Published : 1993.01.20
Download PDF
⟨ Previous Next ⟩

Abstract

Sol-Gel Process is a new method of synthesis of high-quality of glass and glass-ceramics. Ferroeletric material, $BaTiO_3$ powder was made by reacting $Ba(OH)_2$ and $Ti[OCH(CH_3)_2]_4$ in alcohol. There was about 16.5% weight loss in thermogravimetric analysis. It was crystallized to tetragonal structure by heat treatment at $700^{\circ}C$ for 2 hours and had a specific surface area, 16.0 $m^2/g.$ Shrinkage curve by sintering was began around $1100^{\circ}C$ in dilatometer analysis.

졸-겔법은 양질의 유리와 결정화 유리를 합성할 수 있는 새로운 방법이다. 알코올 용액에서 $Ba(OG)_$ 와 Ti[OCH(CH_3)_2]$를 반응시켜 강유전성 물질인 티탄산 바륨 분말을 합성하였다. 이 분말을 열중량 분석한 결과 전체적으로 약 16.5%의 중량 감소가 있었다. $700^{\circ}C$에서 2시간 동안 열처리하여 정방정의 티탄산 분말을 얻었으며 이때 비표면적이 $16.0m^2/g$였다. 소결에 의한 수축을 측정한 결과 $1100^{\circ}C$ 부근에서 시작되었다.

Keywords

References

  1. Ceramic Bulletin (ACerS) v.70 no.8 Sol-Gel Processing of Ceramic Powders A. C. Pierre
  2. Ceramic Bulletin (ACerS) v.70 no.7 Sol-Gel Processing of Complex Oxide Films G. Yi;M. Sayer
  3. Ultrastructure Processing of Advanced Ceramics Colloidal Processing of Ceramics with Ultrafine Particles I. A. Aksay;W. Y. Shih;M. Sarikaya
  4. J. Non-Cryst. Solids v.121 Chemistry of Alkoxide Precursors R. C. Mehrotra
  5. J. Am. Chem. Soc. v.99 W. W. Day;M. F. Fredrich;W. G. Klemperer;J. W. Shun
  6. Prog. Solid St. Chem v.18 Sol-Gel Chemistry of Transition Metal Oxides J. Livage;M. Henry;C. Sanchez
  7. Fine Ceramics Preparation and Application of Fine Powder from the Metal Alkoxide Y. Ozaki
  8. High Tech. Ceramics Preparation of Uniform spherical Barium Titanate Particles P. Gherardi;E. Matijevic;P. Vincenzini(ed.)
  9. J. of Non-Cryst. Sol. v.80 Sol-Gel: Science, Processes and Products H. Dislich
  10. J. de Physique C1 no.SUP. 2 Sintering Study of some fine powder of $BaTiO_3$ and Dielectric compounds J. L. Rehspringer;M. Nadouf;P. Poix;J. C. Bernier
  11. J. Non-Cryst. Solid v.87 Sol-Gel Processing of Silica E. J. A. Pope;J. D. Mackenzie
  12. Ultrasonic Processing of Ceramics, Glasses, and Composites C. Sanchez;F. Bobonneau;S. Doeuff;A. Lealestic
  13. Proc. Int. Workshop on Glasses and Glass Caramics from Gels;J. Non-Cryst. Solids v.48