Journal of the Korean Ceramic Society (한국세라믹학회지)

The Korean Ceramic Society (한국세라믹학회)
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Fabrication and Characterization of Composite Sealants for Low Temperature (600∼650°C)SOFCs

저온작동 (600∼650°C) SOFC용 복합밀봉재 제조 및 평가

  • Lim, Hyun-Yub (Center for Energy Materials Research, Korea Institute of Science and Technology) ;
  • Kim, Hyoung-Chul (Center for Energy Materials Research, Korea Institute of Science and Technology) ;
  • Choi, Sun-Hee (Center for Energy Materials Research, Korea Institute of Science and Technology) ;
  • Kim, Hae-Ryoung (Center for Energy Materials Research, Korea Institute of Science and Technology) ;
  • Son, Ji-Won (Center for Energy Materials Research, Korea Institute of Science and Technology) ;
  • Lee, Hae-Weon (Center for Energy Materials Research, Korea Institute of Science and Technology) ;
  • Lee, Jong-Ho (Center for Energy Materials Research, Korea Institute of Science and Technology)
  • 임현엽 (한국과학기술연구원 에너지재료연구단) ;
  • 김형철 (한국과학기술연구원 에너지재료연구단) ;
  • 최선희 (한국과학기술연구원 에너지재료연구단) ;
  • 김혜령 (한국과학기술연구원 에너지재료연구단) ;
  • 손지원 (한국과학기술연구원 에너지재료연구단) ;
  • 이해원 (한국과학기술연구원 에너지재료연구단) ;
  • 이종호 (한국과학기술연구원 에너지재료연구단)
  • Published : 2008.12.31
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Abstract

A proper sealant for low temperature SOFCs should show zero or low leak rates to avoid direct mixing of the fuel and oxidant gases or leakage of fuel gas during the operation of SOFCs. Furthermore, it should be chemically and/or mechanically stable in both oxidizing and reducing environments and chemically compatible with other fuel cell components. In the present work, we developed a novel compressed seal gasket of glass-based composite reinforced with ceramic particulate particles, which can efficiently control the viscous flow of glass matrix as well as the crystallization of glass phase. This novel sealing gasket showed excellent gas tightness under very low compressive load which would be suitable for the operation of SOFCs in the temperature range $600{\sim}650^{\circ}C$.

Keywords

References

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