Korean Journal of Metals and Materials (대한금속재료학회지)

The Korean Institute of Metals and Materials (대한금속재료학회)
권호 표지

Electrochemical Properties of Tungsten Carbide Coated Stainless Steels for PEM Fuel Cell Separator

턴화텅스텐을 코팅한 고분자전해질막 연료전지 분리판용 스테인리스강의 전기화학적 특성

Nam, Dae-Geun;Lee, Hu-Chul
남대근;이후철

  • Published : 20070200
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Abstract

Abstract: Electrochemical properties of surface modified stainless steel sheets were evaluated as a separatorfor polymer electrolyte membrane fuel cell. Tungsten carbide powders and a mixture of tungsten carbide andstainless steel powders were coated on AISI316L stainless steel sheets by cold spray or rolling process.Tungsten carbide coated layers formed by cold spray process showed a sound coating layer and lower interfacialcontact resistance than other coated layers. Because of the defects present in coated layers, corrosion currentdensities for all type of coated specimens did not satisfy the corrosion standard for metal separator.

Keywords

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