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Amorphous hard magnetic alloy, amorphous hard magnetic cast alloy, and method for producing the same

  • US 5,725,684 A
  • Filed: 12/03/1996
  • Issued: 03/10/1998
  • Est. Priority Date: 12/08/1995
  • Status: Expired due to Term
First Claim
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1. An amorphous hard magnetic alloy having the following general formula:

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    space="preserve" listing-type="equation">A.sub.x --(Fe.sub.1-a Co.sub.a).sub.y --D.sub.zwherein A represents at least one element selected from the group consisting of Nd, Sm, Pr and Pm;

    D represents at least one element selected from the group consisting of Al, Ga, and Ge;

    suffixes x, y, and z satisfy 50≦

    x≦

    75, 10≦

    y≦

    45, and 5≦

    z≦

    15 atomic percent, and suffix a satisfies 5≦

    a≦

    0.5.

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