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Magnetic glassy metal alloy sheets with improved soft magnetic properties

  • US 4,268,325 A
  • Filed: 01/22/1979
  • Issued: 05/19/1981
  • Est. Priority Date: 01/22/1979
  • Status: Expired due to Term
First Claim
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1. In a method of annealing a magnetic glassy metal alloy sheet by heat treatment in a magnetic field, the improvement comprising applying a magnetic field of at least about 1,000 Oersteds at an elevated temperature ranging from above about 225°

  • C. to below the glass transition temperature of said metal alloy in a direction substantially normal to the sheet surface to induce a magnetization inside the sheet essentially in said direction, whereby said alloy remains glassy after said annealing.

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