Iron-nickel based high permeability amorphous alloy
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United States of America Patent
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Aug 16, 1994
Grant Date -
N/A
app pub date -
Jun 3, 1993
filing date -
Jun 5, 1992
priority date (Note) -
Expired
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Abstract
This invention relates to a Fe-Ni based high permeability amorphous alloy consisting of, in atom percent Ni 30-45%, Cr 0.5-1.2%, Si 5-14%, B 5-15%, P 1.0-3.0%, the balance Fe and inevitable impurities. The alloy is made by the rapid quenching melt method. It can be heat-treated in air and the excellent magnetic properties can be obtained as follows: B.sub.10 7900 Gs, B.sub.r 7500 Gs, H.sub.C 0.008 Oe, u.sub.m 68.times.10.sup.4. The present alloy is applied to make various magnetic devices which are used in electric apparatus and equipments.
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