Effects of Nitrogen Ion Implantation on the Surface Properties of 316L Stainless Steel as Bipolar Plate for PEMFC
- Effects of Nitrogen Ion Implantation on the Surface Properties of 316L Stainless Steel as Bipolar Plate for PEMFC
- 김민욱; 김도향; 한승희; 김유찬
- polymer electrolyte membrane fuel cell; bipolar plate; 316L stainless steel; nitrogen ion implantation; interfacial contact resistance; *2009년도 개인평가에 반영완료
- Issue Date
- 대한금속 . 재료학회지; Journal of the Korean Institute of Metals and Materials
- VOL 47, NO 11, 722-727
- The bipolar plates are not only the major part of the polymer electrolyte membrane fuel cell
(PEMFC) stack in weight and volume, but also a significant contributor to the stack costs. Stainless steels
are considered to be good candidates for bipolar plate materials of the PEMFC due to their low cost, high
strength and easy machining, as well as corrosion resistance. In this paper, 316L stainless steel with and
without nitrogen ion implantation were tested in simulated PEMFC environments for application as bipolar
plates. The results showed that the nitride formed by nitrogen ion implantation contributed the decrease of
the interfacial contact resistance without degradation of corrosion property. The combination of excellent
properties indicated that nitrogen ion implanted stainless steel could be potential candidate materials as
bipolar plates in PEMFC. Current efforts have focused on optimizing the condition of ion implantation.
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