Journal of the Korean Ceramic Society (한국세라믹학회지)

The Korean Ceramic Society (한국세라믹학회)
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Porous Alkali Resistance Glass Preparation of ZrO2-SiO2 System by the Sol-Gel Method

졸-겔법에 의한 내알칼리성 다공질 ZrO$_2$-SiO$_2$계 유리 제조

  • 신대용 (강원대학교 재료공학과) ;
  • 한상목 (강원대학교 재료공학과)
  • Published : 1992.01.01
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Abstract

Porous glass in the ZrO2-SiO2 system containing up to 30 mol% zirconia were prepared from the mixed solutions of Zr(O.nC3H7)4 and partially prehydrolyzed TEOS by the sol-gel method. Pore characteristics, physical properties and alkali resistance were investigated. The gels converted into the porous glass by heating at $700^{\circ}C$, it was found that the glass like skeleton was already made up in lower temperature regions. The specific surface area of the porous glass was 227 $m^2$/g, average mean pore size was about 19$\AA$ and porosity was 19.2%, pore characteristics and physical properties depended on heating temperature. Alkali resistance of the porous glass increased as the zirconia content increased, because of the appearance of Zr-enriched layer at glass surface.

Keywords

References

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