Metamagnetic shape memory effect in Porous Ni 43Co 7Mn 39Sn 11 alloy compacts fabricated by pressureless sintering

Kouhei Ito, Wataru Ito, Rie Y. Umetsu, Ibrahim Karaman, Kiyohito Ishida, Ryosuke Kainuma

Research output: Contribution to journalArticlepeer-review

6 Citations (Scopus)

Abstract

Magnetic properties and martensitic transformation response of the Ni 43Co 7Mn 39Sn 11 metamagnetic shape memory alloy compacts fabricated by pressureless sintering were investigated. The porous specimens sintered at 1173K for 48 h show drastic change of electrical resistivity and magnetization due to martensitic transformation, and the features of magnetic-field-induced martensitic transformation behavior are almost the same as those in bulk specimens. In the porous specimens, the large metamagnetic shape recovery ratio over 40% was observed at 320K with the application of 8 T magnetic field.

Original languageEnglish
Pages (from-to)2270-2273
Number of pages4
JournalMaterials Transactions
Volume52
Issue number12
DOIs
Publication statusPublished - 2011

Keywords

  • Martensitic transformation
  • Metamagnetic shape memory alloy
  • Nickel-based alloy
  • Pressureless sintering

ASJC Scopus subject areas

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

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