Surface Modification by Carbon Ion Implantation for the Application of Ni-Based Amorphous Alloys as Bipolar Plate in Proton Exchange Membrane Fuel Cells

Title
Surface Modification by Carbon Ion Implantation for the Application of Ni-Based Amorphous Alloys as Bipolar Plate in Proton Exchange Membrane Fuel Cells
Authors
김민욱김도향한승희에릭플러리석현광차필령김유찬
Keywords
amorphous materials; surface modification; corrosion; electrical conductivity/resistivity; feul cells
Issue Date
2011-04
Publisher
Metals and Materials International
Citation
VOL 17, NO 2, 283-289
Abstract
Ni-based amorphous alloys with surface modification by carbon ion implantation are proposed as an alternative bipolar plate material for polymer electrolyte membrane fuel cells (PEMFCs). Both Ni60Nb20Ti10Zr10 alloys with and without carbon ion implantation have corrosion resistance as good as graphite as well as much lower contact resistance than 316L stainless steel in the PEMFC environment. The formation of conductive surface carbide due to carbon ion implantation results in a decrease in the contact resistance to a level comparable to that of graphite. This combination of excellent properties indicates that carbon ion implanted Ni-based amorphous alloys can be potential candidate materials for bipolar plates in PEMFCs.
URI
http://pubs.kist.re.kr/handle/201004/40358
ISSN
1598-9623
Appears in Collections:
KIST Publication > Article
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