Abstract
A new way of preparing CoFe nanoparticles has been developed using the polyol reduction process followed by heat treatment under argon. The atomic ratio of Co/Fe was set to be 45:55. All the synthesized samples of CoFe nanoparticles were annealed at 600°C for different annealing tunes. The structure properties of these compounds have been characterized by X-ray diffraction and analyzed using the Rietveld refinement method. Body-centered-cubic phase structure was observed for all annealed samples and increased with annealing time up to 99 wt.%. The magnetic characterization of the samples, after and before annealing, were measured using a Physical Properties Measurement System. The magnetic properties are improved with annealing time, and the best results were obtained for 4h. The coercivity is equal to 112 Oe and saturation magnetization reaches 235 emu/g.
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Bessais, L. et al. (2014). High magnetic moment CoFe nanoparticles. In: TMS 2014: 143rd Annual Meeting & Exhibition. Springer, Cham. https://doi.org/10.1007/978-3-319-48237-8_3
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DOI: https://doi.org/10.1007/978-3-319-48237-8_3
Publisher Name: Springer, Cham
Print ISBN: 978-3-319-48593-5
Online ISBN: 978-3-319-48237-8
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