Author/Authors :
Grabias، نويسنده , , A. and Oleszak، نويسنده , , D. and Kopcewicz، نويسنده , , M. and Latuch، نويسنده , , J. and Kulik، نويسنده , , T. and Stobiecki، نويسنده , , F.، نويسنده ,
Abstract :
Formation and magnetic properties of the bulk amorphous Fe60Co10Ni10Zr7B13 alloy are described. The amorphous powder was prepared by high-energy ball milling of the amorphous ribbon and then was pressed under high pressure and temperature to obtain a bulk alloy in the form of a disc 5 mm in diameter and 2.5 mm thick. The compacted discs are fully amorphous as confirmed by X-ray diffraction and Mِssbauer spectroscopy measurements. Differential scanning calorimetry curve recorded for the amorphous ribbon shows two exothermal peaks related to two stages of crystallization. Similar thermal behavior is observed for the powder samples. Hysteresis loops obtained for the amorphous ribbon, as-milled and compacted powders reveal their soft magnetic properties.
