Journal of the Korean Ceramic Society (한국세라믹학회지)

The Korean Ceramic Society (한국세라믹학회)
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Fabrication and Properties of the SiC Candle Filter by Vacuum Extrusion and Ramming Process

진공 압출성형 및 래밍성형 공정에 의한 탄화규소 캔들 필터 제조 및 특성

  • Shin, Myung-Kwan (Reaction and Separation Materials Research Center, Korea Institute of Energy Research (KIER)) ;
  • Han, In-Sub (Reaction and Separation Materials Research Center, Korea Institute of Energy Research (KIER)) ;
  • Seo, Doo-Won (Reaction and Separation Materials Research Center, Korea Institute of Energy Research (KIER)) ;
  • Kim, Se-Young (Reaction and Separation Materials Research Center, Korea Institute of Energy Research (KIER)) ;
  • Woo, Sang-Kuk (Reaction and Separation Materials Research Center, Korea Institute of Energy Research (KIER)) ;
  • Lee, Seoung-Won (Department of Nano Materials Engineering, Chungnam University) ;
  • Kim, Young-Wook (Department of Materials Science Engineering, the University of Seoul)
  • 신명관 (한국에너지기술연구원 반응분리소재연구센터) ;
  • 한인섭 (한국에너지기술연구원 반응분리소재연구센터) ;
  • 서두원 (한국에너지기술연구원 반응분리소재연구센터) ;
  • 김세영 (한국에너지기술연구원 반응분리소재연구센터) ;
  • 우상국 (한국에너지기술연구원 반응분리소재연구센터) ;
  • 이승원 (충남대학교 나노소재공학과) ;
  • 김영욱 (서울시립대학교 신소재공학과)
  • Published : 2009.11.30
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Abstract

Porous SiC candle filter preforms were fabricated by extrusion and ramming process. To fabricate SiC candle filter preform, commercially available 85 ${\mu}m\;{\alpha}-$-SiC powder and 44 ${\mu}m$ mullite, CaC$O_3$ powder were used as the starting materials. The candle type preforms were fabricated by vacuum extrusion and ramming process, and sintered at $1400{^{\circ}C}$ 2 h in air atmosphere. The effect of forming method on porosity, density, strength (flexural and compressive strength) and microstructure was investigated. Also, corrosion test of the sintered candle filter specimens as forming method was performed at $600{^{\circ}C}$ in IGCC syngas atmosphere. The sintered SiC filter which was formed by ramming process has more higher density and exhibit higher strength than extruded filter. Its maximum density and 3-point bending strength were 2.00 g/$cm^3$ and 45 MPa, respectively.

Keywords

References

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