MATERIALS TRANSACTIONS
Online ISSN : 1347-5320
Print ISSN : 1345-9678
Effect of Hydrogen Absorption on Electrical Transport Properties for Ni36Nb24Zr40 Amorphous Alloy Ribbons
Rie Y. UmetsuHajime YoshidaMikio FukuharaShin-ichi YamauraMakoto MatsuuraToshio SasakiTetsushi SekiguchiMikiko SaitoJun MizunoHiroshi Kawarada
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2013 Volume 54 Issue 8 Pages 1339-1342

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Abstract

Electrical resistivity measurements in the temperature range from 6 to 300 K 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 (Ni0.36Nb0.24Zr0.40)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.

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© 2013 The Japan Institute of Metals and Materials
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