Magnet core for low-frequency applications and method for producing a magnet core for low-frequency applications

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United States of America Patent

PATENT NO 10892090
APP PUB NO 20170011846A1
SERIAL NO

15214138

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Abstract

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A magnet core for low-frequency applications and method for producing a magnet core for low-frequency applications is provided. The magnet core is made of a spiral-wound, soft-magnetic, nanocrystalline strip. The strip essentially has the alloy composition FeRestCoaCubNbcSidBeCf, wherein a, b, c, d, e and f are stated in atomic percent and 0≤a≤1; 0.7≤b≤1.4; 2.5≤c≤3.5; 14.5≤d≤16.5; 5.5≤e≤8 and 0≤f≤1, and cobalt may wholly or partially be replaced by nickel. The magnet core has a saturation magnetostriction λs of λs<2 ppm, a starting permeability μ1 of μ1>100 000 and a maximum permeability μmax of μmax>400 000. In addition, a sealing metal oxide coating is provided on the surfaces of the strip.

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Patent Owner(s)

Patent OwnerAddress
VACUUMSCHMELZE GMBH & CO KGGRUENER WEG 37 HANAU 63450

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Petzold, Jörg Kahl, DE 5 13

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