Characterization of nanocrystalline FeSiCr powders prepared by ball milling

摘要: Abstract FeSi 10 Cr powder was mechanically alloyed by high energy planetary ball milling, starting from elemental powders. The microstructural and magnetic properties of the milled powders were characterized scanning electron microscopy, X-ray diffraction, 57 Fe Mossbauer spectrometry a vibratory sample magnetometer. After 3 h formation two bcc solid solutions α-Fe 1 (Si, Cr) 2 is observed. Their grain sizes decrease with increase in milling time attaining, at 15 h 23 11 nm, respectively. spectra show presence components. One ferromagnetic type broad sextuplet. Its distribution hyperfine field low field’s peaks mean value 26.5 T. other single paramagnetic peak. concentration increases to ∼4% milling. These results can be explained different atomic environments affected Si or/and elements, as well increased disordered boundaries. Magnetic measurements alloy exhibit soft character both magnetization saturation (Ms) coercive force (Hc) attaining values Ms=151 emu/g Hc=2500 A/m 30 h time.