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Magnetostrictive material and magnetostriction type device using the same

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  • Publication Date:
    April 19, 2022
  • Additional Information
    • Patent Number:
      11309,485
    • Appl. No:
      16/275235
    • Application Filed:
      February 13, 2019
    • Abstract:
      A magnetostrictive material includes a FeGaSm alloy that is represented by Expression (1), Fe(100-x-y)GaxSmy  (1) (in Expression (1), x and y are respectively a content rate (at. %) of Ga and a content rate (at. %) of Sm, and satisfy that y≤0.35x−4.2, y≤−x+20.1, and y≥−0.1x+2.1).
    • Inventors:
      Panasonic Intellectual Property Management Co., Ltd. (Osaka, JP)
    • Assignees:
      PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD. (Osaka, JP)
    • Claim:
      1. A magnetostrictive material comprising: a FeGaSm alloy that is represented by Expression (1), Fe (100-x-y) Ga x Sm y   (1) wherein, in Expression (1), x and y are respectively a content rate (at. %) of Ga and a content rate (at. %) of Sm, and satisfy 17≤x≤18 and 0.7≤y≤1.4, and wherein the magnetostrictive material has a magnetostriction quantity of 480 ppm or greater.
    • Claim:
      2. The magnetostrictive material of claim 1 , wherein an orientation difference of <100> orientation of the FeGaSm alloy is in a range of 0° or greater and 10° or less, with respect to a maximum strain direction of the magnetostrictive material.
    • Claim:
      3. A magnetostriction type device comprising: the magnetostrictive material of claim 2 , wherein a maximum strain direction of the magnetostrictive material is configured to form an inclination angle of 0° or greater and 10° or less, with respect to a predetermined direction of a dimensional change of the magnetostriction type device.
    • Claim:
      4. A magnetostriction type device comprising: the magnetostrictive material of claim 1 , wherein a maximum strain direction of the magnetostrictive material is configured to form an inclination angle of 0° or greater and 10° or less, with respect to a predetermined direction of a dimensional change of the magnetostriction type device.
    • Patent References Cited:
      4374665 February 1983 Koon
      6149736 November 2000 Sukigara
      8308874 November 2012 Clark
      2016/0343483 November 2016 Chopra
      2020/0076332 March 2020 Nakamura
      2020/0105997 April 2020 Nakamura
      2020/0274056 August 2020 Shirotani
      103556045 February 2014
      2000252107 September 2000
      2003-089857 March 2003
      2008-069434 March 2008
      2021-066627 April 2021
      2021-172850 November 2021


    • Other References:
      He et al., “Giant heterogeneous magnetostriction in FeGa alloys: Effect of trace element doping”, 2016. Acta Materialia, vol. 109, pp. 177-186 (Year: 2016). cited by examiner
      Wu et al., “Improved mangetostriction of Fe83Ga17 ribbons doped with Sm”, 2016. Rare Metals, vol. 36, No. 1, pp. 18-22 (Year: 2016). cited by examiner
      Golovin etal, “Mechanical spectroscopy of phase transitions in Fe-(23-28)Ga-RE alloys”, 2021. Journal of Alloy and Compounds, vol. 874 (Year: 2021). cited by examiner
    • Assistant Examiner:
      Anderson, Benjamin C
    • Primary Examiner:
      Walker, Keith
    • Attorney, Agent or Firm:
      Wenderoth, Lind & Ponack, L.L.P.
    • Accession Number:
      edspgr.11309485