Low Core Losses and High Flux Density Attained for Ferrite/Permalloy Composite Cores

Author

Matsushita, N. ; Kim, D. ; Abe, M.

Author_Institution

Tokyo Inst. of Technol., Yokohama

fYear

2006

fDate

8-12 May 2006

Firstpage

129

Lastpage

129

Abstract

A novel type of granular composite magnetic core, exhibiting high flux density and low eddy current losses, is fabricated in this study by plating which combines the merits of metal magnetic materials with those of ferrites. The Permalloy microspheres are encapsulated in single phase NiZn ferrite layer as revealed by FESEM and X-ray diffraction. It is found that the saturation magnetisation and magnetic permeability of the composite cores increased with increasing pH.

Keywords

Permalloy; X-ray diffraction; eddy current losses; electroplating; ferrites; field emission electron microscopy; magnetic cores; magnetic permeability; magnetisation; scanning electron microscopy; zinc alloys; FESEM; NiFe-NiZn; Permalloy microspheres; X-ray diffraction; eddy current losses; ferrite-Permalloy composite cores; granular composite magnetic core; magnetic permeability; metal magnetic materials; plating; saturation magnetisation; Core loss; Eddy currents; Ferrites; Frequency; Insulation; Magnetic cores; Magnetic materials; Permeability; Power supplies; Saturation magnetization;

fLanguage

English

Publisher

ieee

Conference_Titel

Magnetics Conference, 2006. INTERMAG 2006. IEEE International

Conference_Location

San Diego, CA

Print_ISBN

1-4244-1479-2

Type

conf

DOI

10.1109/INTMAG.2006.375629

Filename

4261563