Abstract
The successful synthesis of Fe-Co nanoparticles by using a modified polyol process is reported. The formation of the alloy nanoparticles was confirmed by X-ray diffraction and X-ray extended absorption fine structure analyses. The concentration of iron in these particles could be varied between 40% and 90% by controlling the reaction conditions such as initial Fe/Co ratio, reaction temperature and hydroxyl ion concentration. The shape of the particles changed from spherical to cubic when the concentration of Fe was increased from 40 to above 60 at. %. The highest magnetization of 225 emu/g was recorded for Fe70Co30 nanoparticles. The magnetization of these particles decreased by about 20% when exposed to severe oxidizing atmosphere for seven days.
Original language | English |
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Pages (from-to) | 2796-2798 |
Number of pages | 3 |
Journal | IEEE Transactions on Magnetics |
Volume | 42 |
Issue number | 10 |
DOIs | |
Publication status | Published - 2006 Jan 1 |
Keywords
- Chemical synthesis
- Fe-Co nanoparticles
- polyol process
- soft magnetic materials
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Electrical and Electronic Engineering