Development of the ni-based metallic glassy bipolar plates for proton exchange membrane fuel cell (PEMFC)

S. Yamaura, M. Yokoyama, M. Kimura, A. Inoue

Research output: Contribution to journalArticlepeer-review

6 Citations (Scopus)

Abstract

Alloy optimization in the Ni80-xCrxP 16B4 (x9-30 at%) alloy system was conducted in order to achieve low Tg, Tx and a large ΔTx. From this study, the Ni65Cr15P16B4 glassy alloy was found to be the optimal alloy. The static and potentiodynamic corrosion behaviours of this alloy were measured. As a result of polarization measurements, it was found that the current density of the non-polished glassy alloy sample was smaller than that of a SUS316L sample. By contrast, the current density of the surface-polished glassy sample was slightly larger than that of the SUS316L sample in the voltage range of 0.3-0.8 V. A bipolar plate was successfully produced by hot-pressing the glassy alloy sheet in a supercooled liquid state. The I-V characteristics of a single cell with the glassy bipolar plates were measured.

Original languageEnglish
Article number012001
JournalJournal of Physics: Conference Series
Volume144
DOIs
Publication statusPublished - 2009
Externally publishedYes

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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