Magnetic core comprised of low-retentivity amorphous alloy

Details Magnetic core comprised of low-retentivity amorphous alloy Magnetic core comprised of low-retentivity amorphous alloy

1979-07-16

1981-05-05

Rutledge, L. Dewayne

Metal treatment

Process of modifying or maintaining internal physical...

Magnetic materials

29603, 148 3155, 360120, H01F 100

Patent

active

042656842

ABSTRACT:
An amorphous alloy core is converted into a crystalline state at least at one zone along the core body and such zone extends at least over a portion of the core cross-section at such zone. The zone converted into the crystalline state functions as an air gap of prior art crystalline low-retentivity alloy cores, because the permeability in the crystalline state is significantly lower than in the amorphous state. Magnetic cores formed in accordance with the principles of the invention are suitable in applications wherever a sheared hysteresis loop is required.

REFERENCES:
patent: 3258542 (1966-06-01), Pfost
patent: 4079430 (1978-03-01), Fujishima et al.
patent: 4150981 (1979-04-01), O'Handley
patent: 4152144 (1979-05-01), Hasegawa et al.

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