Effect of iron and cobalt addition on magnetic and shape memory properties of Ni2MnGa sputtered films

Makoto Ohtsuka, Minoru Matsumoto, Kimio Itagaki

Research output: Contribution to journalArticlepeer-review

19 Citations (Scopus)

Abstract

The effect of iron and cobalt addition on the magnetic and shape memory properties of Ni2MnGa sputtered films was investigated. It was found that heat-treated films with more than 5.1 mol% Co have two phases. Martensitic transformation temperatures of the constraint-aged films decreased with the iron addition and increased with increasing cobalt content. The Curie temperature of the heat-treated films increased with increasing amount of iron or cobalt. The constraint-aged films containing iron and cobalt exhibited a two-way shape memory effect by heating and cooling.

Original languageEnglish
Pages (from-to)935-939
Number of pages5
JournalMaterials Science and Engineering A
Volume438-440
Issue numberSPEC. ISS.
DOIs
Publication statusPublished - 2006 Nov 25

Keywords

  • Ferromagnetic shape memory alloy
  • Magnetic property
  • Nickel-manganese-gallium
  • Shape memory effect
  • Sputtered film

ASJC Scopus subject areas

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

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