Journal of the Korean Ceramic Society (한국세라믹학회지)

The Korean Ceramic Society (한국세라믹학회)
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Surface Morphology and Electrical Property of PEMFC (Proton Exchange Membrane Fuel Cell) Bipolar Plates

고분자전해질 연료전지용 바이폴라 플레이트의 표면형상과 전기적 특성

  • Song, Yon-Ho (Department of Chemical and Biochemical Engineering, Chosun University) ;
  • Yun, Young-Hoon (Department of Hydrogen & Fuel Cell Technology, Dongshin University)
  • 송연호 (조선대학교 생명화학공학과) ;
  • 윤영훈 (동신대학교 수소에너지학과)
  • Published : 2008.03.31
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Abstract

The multi-films of a metallic film and a transparent conducting oxide (TCO, indium-tin oxide, ITO) film were formed on the stainless steel 316 and 304 plates by a sputtering method and an E-beam method and then the external metallic region of the stainless steel bipolar plates was converted into the metal nitride films through an annealing process. The multi-film formed on the stainless steel bipolar plates showed the XRD patterns of the typical indium-tin oxide, the metallic phase and the metal substrate and the external nitride film. The XRD pattern of the thin film on the bipolar plates modified showed two metal nitride phases of CrN and $Cr_2N$ compound. Surface microstructural morphology of the multi-film deposited bipolar plates was observed by AFM and FE-SEM. The metal nitride film formed on the stainless steel bipolar plates represented a microstructural morphology of fine columnar grains with 10 nm diameter and 60nm length in FE-SEM images. The electrical resistivity of the stainless steel bipolar plates modified was evaluated.

Keywords

References

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