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Article Dans Une Revue Journal of Magnetism and Magnetic Materials Année : 2008

X-ray diffraction, microstructure, Mössbauer and magnetization studies of nanostructured Fe50Ni50 alloy prepared by mechanical alloying

Résumé

Nanocrystalline Fe 50 Ni 50 alloy samples were prepared by the mechanical alloying process using planetary high-energy ball mill. The alloy formation and different physical properties were investigated as a function of milling time, t, (in the 0-50 h range) by means of the X-ray diffraction (XRD) technique, scanning electron microscopy (SEM), energy dispersive X-ray (EDAX), Mo¨ssbauer spectroscopy and the vibrating sample magnetometer (VSM). The complete formation of g-FeNi is observed after 24 h milling. When milling time increases from 0 to 50 h, the lattice parameter increases towards the Fe 50 Ni 50 bulk value, the grain size decreases from 67 to 13 nm, while the strain increases from 0.09% to 0.41%. Grain morphologies at different formation stages were observed by SEM. Saturation magnetization and coercive fields derived from the hysteresis curves are discussed as a function of milling time.
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hal-02949082 , version 1 (16-11-2021)

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Paternité - Pas d'utilisation commerciale

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Abderrahim Guittoum, Abdelhamid Layadi, Abdelkader Bourzami, H Tafat, Nassim Souami, et al.. X-ray diffraction, microstructure, Mössbauer and magnetization studies of nanostructured Fe50Ni50 alloy prepared by mechanical alloying. Journal of Magnetism and Magnetic Materials, 2008, 320 (7), pp.1385-1392. ⟨10.1016/j.jmmm.2007.11.021⟩. ⟨hal-02949082⟩
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