대한화학회지 (Journal of the Korean Chemical Society)

  • 제37권1호
  • /
  • Pages.92-97
  • /
  • 1993
  • /
  • 1017-2548(pISSN)
  • /
  • 2234-8530(eISSN)
대한화학회 (Korean Chemical Society)
권호 표지

졸-겔법에 의한 티탄산 바륨 분말 합성

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

  • 도길명 (경남대학교 자연과학대학 화학과) ;
  • 김일출 (경남대학교 자연과학대학 화학과) ;
  • 박대욱 (경남대학교 자연과학대학 화학과)
  • 발행 : 1993.01.20
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초록

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.

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.

키워드

참고문헌

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