Metal treatment – Process of modifying or maintaining internal physical... – Magnetic materials
Patent
1993-09-14
1995-12-12
Sheehan, John
Metal treatment
Process of modifying or maintaining internal physical...
Magnetic materials
148120, 148122, H01F 1147
Patent
active
054746248
ABSTRACT:
The present invention relates to a method of stably manufacturing a Fe-base soft magnetic alloy having steps of subjecting an amorphous alloy mainly composed of Fe to heat treatment in which the amorphous alloy is heated to 400.degree. to 750.degree. C. at a heating rate of 1.0.degree. C./minute or higher so that at least 50% or more of the structure of the amorphous alloy is made of fine crystalline grains formed into a body-centered cubic structure and having an average grain size of crystal of 30 nm or smaller as to have a high magnetic permeability and saturation magnetic flux density.
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Inoue Akihisa
Makino Akihiro
Masumoto Tsuyoshi
Suzuki Kiyonori
Alps Electric Co. ,Ltd.
Bever Patrick T.
Sheehan John
Shoup Guy W.
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