Transactions of the Korean hydrogen and new energy society (한국수소및신에너지학회논문집)

The Korean Hydrogen and New Energy Society (한국수소및신에너지학회)
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Characterization and Preparation of $La_{0.8}Ca_{0.2}CrO_3$ Ceramic Interconnect Prepared by Thermal Plasma Spray Coating Process for SOFC

열 플라스마 용사법에 의해 코팅된 SOFC 용 세라믹 연결재인 $La_{0.8}Ca_{0.2}CrO_3$ 특성 연구

  • Park, Kwang-Yeon (Fuel Cell Research Center, Korea Institute of Energy Research) ;
  • Lim, Tak-Hyoung (Fuel Cell Research Center, Korea Institute of Energy Research) ;
  • Lee, Seung-Bok (Fuel Cell Research Center, Korea Institute of Energy Research) ;
  • Park, Seok-Joo (Fuel Cell Research Center, Korea Institute of Energy Research) ;
  • Song, Rak-Hyun (Fuel Cell Research Center, Korea Institute of Energy Research) ;
  • Shin, Dong-Ryul (Fuel Cell Research Center, Korea Institute of Energy Research)
  • 박광연 (한국에너지기술연구원 연료전지연구단) ;
  • 임탁형 (한국에너지기술연구원 연료전지연구단) ;
  • 이승복 (한국에너지기술연구원 연료전지연구단) ;
  • 박석주 (한국에너지기술연구원 연료전지연구단) ;
  • 송락현 (한국에너지기술연구원 연료전지연구단) ;
  • 신동렬 (한국에너지기술연구원 연료전지연구단)
  • Received : 2010.03.03
  • Accepted : 2010.06.25
  • Published : 2010.06.30
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Abstract

In present work, $La_{0.8}Ca_{0.2}CrO_3$ (LCC) ceramic interconnect layer for SOFC was prepared by using thermal plasma spray coating process. The LCC powders were synthesized by Pechini method and calcined at the temperature of $1000^{\circ}C$. The prepared LCC powder was characterized by x-ray diffraction (XRD), scanning electron microscopy (SEM), particle counter, BET analysis, respectively. In addition, basic and essential properties of LCC layer coated by thermal plasma spray coating process such as the morphology of surface and cross section for coated layer, gas leak rate, and electrical conductivity were analyzed and discussed. Based on these experimental results, it can be concluded that the LCC layer coated by thermal plasma spray coating process can be suitable as a ceramic interconnect of SOFC operated at $800^{\circ}C$.

Keywords

References

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