Magnetic cores utilizing metallic glass ribbons and mica paper i

Details Magnetic cores utilizing metallic glass ribbons and mica paper i Magnetic cores utilizing metallic glass ribbons and mica paper i

1990-05-18

1992-02-25

Robinson, Ellis P.

Stock material or miscellaneous articles

Coated or structually defined flake, particle, cell, strand,...

Mica flake

242 702, 242 708, 360113, 360125, 428426, 4285375, 428692, B32B 1904

Patent

active

050912534

ABSTRACT:
A magnetic core is fabricated from ferromagnetic metallic glass ribbon and mica paper insulation. The ribbon and insulation are co-wound, so that layers comprise alternate concentric rings. The wound core is then annealed in a vacuum or an inert atmosphere such as dry nitrogen or argon gas. Co-wound cores of this type exhibit excellent magnetic properties at high magnetization rates and high voltage hold off between adjacent laminations, and are particularly suited for pulse power applications.

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"Metallic Glasses for Magnetic Switches", C. H. Smith, IEEE Conf. Record of the 15th. Power Modulator Symposium, pp. 22-27 (1982).
"Thickness Dependence of Magnetic Losses in Amorphous FeBSiC Ribbons . . .", C. H. Smith et al., IEEE Trans. on Magnetics, MAG-20, #5, 9/5/84, 1320-1322.
"Magnetic Properties of Metallic Glasses under Fast Pulse Excitation", C. H. Smith et al., IEEE Conf. Rec. 16th Power Mod. Symp., 240-244 (1984).

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