Rare earth magnet and method for making same

  • US 6,527,874 B2
  • Filed: 07/10/2001
  • Issued: 03/04/2003
  • Est. Priority Date: 07/10/2000
  • Status: Expired due to Term
First Claim
Patent Images

1. A rapidly solidified alloy sintered magnet having a general formula represented by (Fe1-mTm)100-x-y-zQxRyMz where T denotes at least one element selected from the group consisting of Co and Ni, Q denotes at least one element selected from the group consisting of B and C, R denotes at least one rare earth element, and M denotes Nb, and the mole fractions x, y, z, and m respectively satisfy 2≦

  • x≦

    28 (atom %), 8≦

    y≦

    30 (atom %), 0.1≦

    z<

    1.0 (atom %), and 0≦

    m≦

    0.5 (atom %).

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