Magnetostrictive and Shape Memory Properties of Heusler Type Co2NiGa Alloys

• Sato Mitsutaka

  Faculty of Science and Technology, Hirosaki University

• Okazaki Teiko

  Faculty of Science and Technology, Hirosaki University

• Furuya Yasubumi

  Faculty of Science and Technology, Hirosaki University

• Wuttig Manfred

  Department of Materials and Nuclear Engineering, University of Maryland, College Park

書誌事項

タイトル別名

• Magnetostrictive and Shape Memory Properties of Heusler Type Co<SUB>2</SUB>NiGa Alloys

抄録

We have researched and developed a new Heusler-type ferromagnetic shape memory alloy Co₂NiGa, which has large magnetostriction caused by the magnetic-field-induced re-arrangement of martensite twin. The ribbon samples produced by rapid-solidification melt-spinning method show strong texture and large magnetostriction ε of about 110×10⁻⁶ for an applied magnetic field of 800 kA·m⁻¹ at room temperature. When increasing temperature, the martensite phase of Co_52.4Ni₂₂Ga_25.6 and Co_52.1Ni_26.1Ga_21.8 ribbons disappears at about 390 K and 330 K, respectively, where the drastic shape recovery arises. Some of the ribbons have good ductility and are not broken even after bending to an angle of 180^°, indicating that the Co₂NiGa system has a possibility of new ferromagnetic shape memory material with good ductility.

収録刊行物

• MATERIALS TRANSACTIONS

  MATERIALS TRANSACTIONS 44 (3), 372-376, 2003

  公益社団法人 日本金属学会

キーワード

• Co<SUB>2</SUB>NiGa system
• ferromagnetic shape memory alloy
• martensite phase
• magnetostriction
• rapid solidification
• shape memory effect

詳細情報

• CRID: 1390001204249761792
• NII論文ID: 10011910120
• NII書誌ID: AA1151294X
• DOI: 10.2320/matertrans.44.372
• COI: 1:CAS:528:DC%2BD3sXjslGltL8%3D
• ISSN: 13475320
• ISSN: 13459678
• NDL書誌ID: 6493161
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I6493161
• Web Site: https://www.jstage.jst.go.jp/article/matertrans/44/3/44_3_372/_pdf
• 本文言語コード: en
• データソース種別:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可