Effect of surface modification by ion implantation on hydrogenation property of TiFe alloy

Takanori Suda, Masaki Ohkawa, Shougo Sawada, Seiichi Watanabe, Somei Ohnuki, Shinji Nagata

Research output: Contribution to journalArticlepeer-review

11 Citations (Scopus)

Abstract

In order to improve initial activation properties of TiFe alloy, simple ion implantation and ion mixing with the deposition of LaNi5 were carried out at room temperature. The results show that argon-ion mixing caused extensive improvement of initial activation, wherein hydrogenation was easily effected at 373 K and 1 MPa. Those results are related to several irradiation effects; the re-crystallization of amorphous film of LaNi5 and the local segregation of composed elements. Both of these irradiation effects greatly improve the initial hydrogenation process of TiFe alloy.

Original languageEnglish
Pages (from-to)2703-2705
Number of pages3
JournalMaterials Transactions
Volume43
Issue number11
DOIs
Publication statusPublished - 2002 Nov

Keywords

  • Activation
  • Hydrogen storage alloy
  • Ion implantation
  • Ion mixing
  • Surface modification
  • TiFe alloy

ASJC Scopus subject areas

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

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