期刊
JOURNAL OF POWER SOURCES
卷 179, 期 2, 页码 631-639出版社
ELSEVIER
DOI: 10.1016/j.jpowsour.2008.01.038
关键词
CrN; stainless steels; Ni-based alloys; PVD; contact and corrosion resistances; PEMFC
Commercial stainless steels, Ni-based alloys and physical vapor deposition (PVD) chromium nitride (CrN)-coated stainless steels were evaluated as possible metallic bipolar plate materials in conditions that resemble a typical PEMFC cathode environment with respect to their interfacial contact resistance (ICR) and corrosion resistance. Results show that stainless steels have a high ICR and undergo corrosion. Although Ni-based alloys showed an ICR value comparable as to that of graphite, their behaviour was not satisfactory in a corrosive acidic medium. Only CrN-coated stainless steels demonstrated to have low ICR values and a very good corrosion resistance. (C) 2008 Elsevier B.V. All rights reserved.
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