Journal of the Korean Ceramic Society (한국세라믹학회지)

The Korean Ceramic Society (한국세라믹학회)
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Microstructure and Physical Properties of Porous Material Fabricated from a Glass Abrasive Sludge

유리연마슬러지를 사용한 다공성 소재의 미세구조 및 물리적 특성에 관한 연구

  • Chu, Yong-Sik (Ceramics and Building Materials Division, Korea Institute of Ceramic Engineering and Technology) ;
  • Kwon, Choon-Woo (Ceramics and Building Materials Division, Korea Institute of Ceramic Engineering and Technology) ;
  • Lee, Jong-Kyu (Ceramics and Building Materials Division, Korea Institute of Ceramic Engineering and Technology) ;
  • Shim, Kwang-Bo (Department of Ceramic Engineering, Hanyang University)
  • 추용식 (요업기술원 세라믹.건재본부) ;
  • 권춘우 (요업기술원 세라믹.건재본부) ;
  • 이종규 (요업기술원 세라믹.건재본부) ;
  • 심광보 (한양대학교 세라믹공학과)
  • Published : 2006.05.01
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Abstract

A porous material with a surface layer was fabricated from glass abrasive sludge and expanding agents. The glass abrasive sludges were mixed with expanding agents and compacted into precursors. These precursors were sintered in the range of $700-900^{\circ}C$ for 20 min. The sintered porous materials had a surface layer with smaller pores and inner parts with larger pores. The surface layer and closed pores controlled water absorption. As the expanding agent fraction and the sintering temperature increased, the porosity and pore size increased. The porous materials with $Fe_2O_3$ and graphite as the expanding agents had a low absorption ratio of about 3% or lower while the porous material with $CaCO_3$ as the expanding agent had a higher absorption ratio and more open pores.

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References

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