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http://dx.doi.org/10.4191/KCERS.2006.43.11.700

Preparation and Characteristics of the Ni-Ferrite Encapsulated Mo-Permalloy Powder  

Park, Hyun-Kyu (School of Materials Science and Engineering, Inha University)
Ji, In-Geol (School of Materials Science and Engineering, Inha University)
Oh, Jae-Hee (School of Materials Science and Engineering, Inha University)
Ko, Taeg-Yung (School of Materials Science and Engineering, Inha University)
Publication Information
Abstract
We prepared a Ni-ferrite encapsulated Mo-permalloy powder through simple electroless plating and heat treatment. It was observed that Ni-ferrite particles formed in a spherical form on each Mo-permalloy grain. The microstructure and the magnetic characteristics of the encapsulated powders depended strongly on oxidation time in the heat-treatment. When the powder was oxidized for 60 min, a dense Ni-ferrite layer covered the Mo-permalloy grain, which in turn exhibited high saturation magnetization of 85.8 emu/g. The magnetic core prepared additionally with the encapsulated powder exhibited a resonant frequency of 12 kHz.
Keywords
Magnetic core; Ferrite; Permalloy; Ni-ferrite encapsulated; Mo-permalloy;
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Times Cited By KSCI : 1  (Citation Analysis)
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