In this study, structural and magnetic properties of nanocrystalline Fe–Si–Ni powders produced by mechanical alloying (MA) have been investigated. The samples with different chemical compositions and milling times were characterized by X-ray diffraction (XRD) and scanning electron microscope (SEM). The alloy powders with average grain size 8–19 nm were synthesized by milling for 35–100 h. Coercivity (Hc) and crystallite size exhibited a similar decrease by increasing the mechanical alloying time. Maximum saturation magnetization (Ms) and minimum Hc were obtained at the composition of Fe87Si10Ni5 after 70 h milling.

Papers: 

Preparation of nanocrystalline Fe–Si–Ni soft magnetic powders by mechanical alloying, J Mater Sci Eng B

Characterization of mechanically alloyed Fe_100−xSi_x and Fe_83.5Si_13.5Nb₃ nanocrystalline powders, J Mater Processing Tech

Structural and soft magnetic properties of nanocrystalline Fe₈₅Si₁₀Ni₅ powders prepared by mechanical alloying, Mater Letters