Ferromagnetic shape-memory alloy Ni2MnGa

Minoru Matsumoto, Makoto Ohtsuka, Hiroyuki Miki, Vladimir V. Khovailo, Toshiyuki Takagi

Research output: Contribution to journalConference articlepeer-review

3 Citations (Scopus)

Abstract

Ferromagnetic shape memory alloy Ni2MnGa has a Heusler type crystal structure. Heusler type cubic structure transforms to tetragonal one by a thermoelastic martensitic transformation during cooling. Ni2MnGa bulk specimen is very brittle and then sputtered films and spark plasma sintering materials were made. Physical properties of bulk, sputtered films and spark plasma sintering material of stoichiometric and non-stoichiometric Ni2MnGa were measured and shape memory effect in sputtered film was observed. Sputtered film showed one way and two way shape memory effect with temperature change.

Original languageEnglish
Pages (from-to)545-548
Number of pages4
JournalMaterials Science Forum
Volume394-395
Publication statusPublished - 2002
EventProceedings of the International Conference on Shape Memory and Superelastic Technologies and Shape Memory Materials (SMST-SMM 2001) - Kumning, China
Duration: 2001 Sep 22001 Sep 6

Keywords

  • Ferromagnetic Shape-Memory Alloy
  • Martensitic Transformation
  • NiMnGa
  • Shape-Memory Effect
  • Sputtered Film

ASJC Scopus subject areas

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

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