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Effect of boron addition on structural and magnetic properties of nanostructured Fe75Al25 alloy prepared by high energy ball milling

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In the present work, the effect of boron addition on microstructural and magnetic properties of (Fe75Al25)(100-x)B-x (x=0, 5, 9 and 12 at%) alloys prepared by mechanical alloying process, were investigated by X-ray diffraction and vibrating sample magnetometer and SQUID techniques. The micro structural parameters such as the crystallite size, the microstrain and the lattice parameters of the bccsolid solution Fe(Al) were deduced from the Rietveld refinement of the X-ray diffraction patterns using the X-Pert HighScore. It is found that boron additions delay the formation of the BCC-Fe(Al) solid solution by mechanical alloying. The coercivity (H-c) decreases with increasing the amount of boron added. The undoped sample showed a hard ferromagnetic behavior (Hc similar to 750 Oe) whereas the doped ones reached a softening ferromagnetic behavior (Hc < 100 Oe).

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Articles publicats en revistes (Ciència dels Materials i Química Física)

# metadata.dc.title[].value
Effect of boron addition on structural and magnetic properties of nanostructured Fe75Al25 alloy prepared by high energy ball milling