Effect of hydrogen absorption on electrical transport properties for Ni36Nb24Zr40 amorphous alloy ribbons

Rie Y. Umetsu, Hajime Yoshida, Mikio Fukuhara, Shin Ichi Yamaura, Makoto Matsuura, Toshio Sasaki, Tetsushi Sekiguchi, Mikiko Saito, Jun Mizuno, Hiroshi Kawarada

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)

Abstract

Electrical resistivity measurements in the temperature range from 6 to 300K were carried out in order to investigate the effects of the hydrogen absorption on the transport properties of Ni36Nb24Zr40 amorphous alloy ribbon. The electrical resistivity basically behaved negative temperature dependence in all prepared specimens of (Ni0.36Nb 0.24Zr0.40)100-xHx with 0 ≤ x < 15. The absolute value of temperature coefficient of the resistivity, TCR, increased with increasing the amount of the absorbed hydrogen. In addition, it was also clear that the electrical resistivity gradually increased with the time just after electrochemically charging, and tended to saturate after about 800 ks at 300 K. The behavior of the gradual increase in the electrical resistivity with the time was explained by the model including two kinds of the relaxation times, being associated with the migration of the hydrogen from the sample surface.

Original languageEnglish
Pages (from-to)1339-1342
Number of pages4
JournalMaterials Transactions
Volume54
Issue number8
DOIs
Publication statusPublished - 2013 Sep 3

Keywords

  • Amorphous alloy ribbon
  • Electrical resistivity
  • Hydrogen absorption
  • Time-dependent change

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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