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Activation behaviour of ZrCrNi mechanically milled with nickel

Authors
Journal
Journal of Alloys and Compounds
0925-8388
Publisher
Elsevier
Publication Date
Volume
267
Identifiers
DOI: 10.1016/s0925-8388(97)00529-x
Keywords
  • Zr-Based Laves Phase
  • Mechanical Milling
  • Nanocrystalline
  • Hydrogenation Behaviour
Disciplines
  • Chemistry

Abstract

Abstract AB 2 type Laves phase alloys have some promising properties as a negative electrode in rechargeable Ni/MH batteries because of high electrochemical capacity and good cyclic life. However, they have the disadvantage of requiring many charge–discharge cycles for activation. In this study, the mechanical milling with nickel has been introduced to modify the electrochemical behaviour of the ZrCrNi alloy. A composite-like structure (ZrCrNi+nickel) and nanocrystalline ZrCrNi were obtained through the mechanical milling and the hydrogenation behaviour of the electrode was greatly improved.

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