Journal of the Korean Ceramic Society (한국세라믹학회지)

The Korean Ceramic Society (한국세라믹학회)
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Preparation of Porous Cordierite by Using Water-Vapour Treatment

수증기처리공정에 의한 다공성 코디어라이트의 제조

  • 문교태 (충남대학교 공과대학 정밀공업화학과) ;
  • 서신석 (한일시멘트 중앙연구소) ;
  • 노재성 (충남대학교 공과대학 정밀공업화학과) ;
  • 조득희 (한국화학연구소 촉매연구팀) ;
  • 김동표 (충남대학교 공과대학 정밀공업화학과)
  • Published : 1997.09.01
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Abstract

Cordierite ceramic was prepared by sol-gel method. It was analyzed by Infrared spectroscopy and X-ray diffraction patterns that the ceramic was chemically mixed in molecular level and transformed to $\alpha$-cordierite at 125$0^{\circ}C$. Water vapour treatments for aging and drying process were conducted to get porous cordierite with thermally stable pore structure. It resulted in 220-410 $m^2$/g BET surface area and mesoporous structure with mean pore diameter, 40$\AA$. Compared to naturally dried ceramic, the ceramic showed superior thermal stability of surface area up to $700^{\circ}C$. Surfaces of porous cordierite ceramics were observed by SEM.

Keywords

References

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