A dilatometric study of nickel wire electrode electrochemically charged by hydrogen

Y. Oren, E. Elish, A. Tamir, Z. Gavra

Research output: Contribution to journalArticlepeer-review

7 Scopus citations


The cathodic charging of nickel with hydrogen was studied with simultaneous measurements of dimensional variations within the solubility region. Relative dimensional changes as low as 3 × 10-6 could be detected which makes this measuring combination sensitive and powerful in studying the behavior of metal hydrogen systems, particularly in the low hydrogen concentration region. The effect of current density, solution acidity and type of promoter on the extent of relative dimensional variations induced by the cathodic process is presented. Also, the process coulombic efficiency, i.e. the charge fraction converted into absorbed hydrogen atoms, is calculated and interpreted via the dimensional changes.

Original languageEnglish
Pages (from-to)30-36
Number of pages7
JournalJournal of Alloys and Compounds
Issue number1
StatePublished - 1 Mar 1996


  • Cathodic charging
  • Nickel-hydrogen system
  • Relative dimensional variations

ASJC Scopus subject areas

  • Mechanics of Materials
  • Mechanical Engineering
  • Metals and Alloys
  • Materials Chemistry


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