Structural and magnetic study of bulk glassy Fe72 ? x Co x B20Si4Nb4 alloys

摘要

The influence of the partial replacement of Fe by Co on the structural and magnetic properties of bulk-type glassy Fe72 ? x Co x B20Si4Nb4 (x = 0, 5, 10, 15, 20, 25, 30, 35) alloys has been studied using differential scanning calorimetry (DSC), X-ray diffraction (XRD) magnetic measurements and M?ssbauer spectroscopy. Results show that the successive Co addition: (1) does not affect the mass density of the studied alloys, (2) affects appreciably the super cooled region, (3) modifies the magnetic properties, exhibiting soft magnetic behavior, (4) modifies the spin texture and disorder within the studied specimens.