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MAGNETIC ALLOY MATERIAL AND METHOD OF MAKING THE MAGNETIC ALLOY MATERIAL

  • US 20060231163A1
  • Filed: 03/30/2006
  • Published: 10/19/2006
  • Est. Priority Date: 03/31/2005
  • Status: Active Grant
First Claim
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1. A magnetic alloy material having a composition represented by the general formula:

  • Fe100-a-b-cREaAbCoc, where RE is a rare-earth element that always includes La, A is either Si or Al, 6 at %≦

    a≦

    11 at %, 8 at %≦

    b≦

    =18 at %, and 0 at %≦

    c≦

    9 at %, and having either a two phase structure consisting essentially of an α

    -Fe phase and an (RE, Fe, A) phase including 30 at % to 90 at % of RE or a three phase structure consisting essentially of the α

    -Fe phase, the (RE, Fe, A) phase including 30 at % to 90 at % of RE and an RE(Fe, A)13 compound phase with an NaZn13-type crystal structure, the respective phases having an average minor-axis size of 40 nm to 2 μ

    m.

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