Article ID Journal Published Year Pages File Type
1640941 Materials Letters 2016 4 Pages PDF
Abstract

•The nanocrystalline (Fe75Al25)100−xBx (x=0, 5, 9 and 12 at%) powders were prepared by mechanical alloying.•The effect of boron addition on microstructural and magnetic proprieties was studied.•Soft ferromagnetic materials were obtained with the addition of boron.

In the present work, the effect of boron addition on microstructural and magnetic properties of (Fe75Al25)100−xBx (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 microstructural parameters such as the crystallite size, the microstrain and the lattice parameters of the bcc- solid 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 (Hc) decreases with increasing the amount of boron added. The undoped sample showed a hard ferromagnetic behavior (Hc~750 Oe) whereas the doped ones reached a softening ferromagnetic behavior (Hc<100 Oe).

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Physical Sciences and Engineering Materials Science Nanotechnology
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