Ferrimagnetic core materials for megahertz frequency high...

Details Ferrimagnetic core materials for megahertz frequency high... Ferrimagnetic core materials for megahertz frequency high...

H - Electricity

01

F

H01F 17/04 (2006.01) C04B 35/26 (2006.01)

Patent

CA 2077918

ABSTRACT An improved NiZnCo ferrimagnetic core material which may further contain elements from the group Cr, Mn or Li. The invention permits enhancement of magnetic properties and results in core materials capable of efficient aperation at high frequencies on the order of 1-100 MHz over a wide range of magnetic flux densities, on the order of 1-2500 Gauss. The composition of base NiZnCo ferrites are adjusted through ionic substitution. The magnetic properties of the ferrite are further enhanced through Bi2O3 and SiO2 additions and controlled sinterincg. Methods of manufacturing the core material are also disclosed. - 56 -

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