Title :
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
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;
Conference_Titel :
Magnetics Conference, 2006. INTERMAG 2006. IEEE International
Conference_Location :
San Diego, CA
Print_ISBN :
1-4244-1479-2
DOI :
10.1109/INTMAG.2006.375629
