Using Mossbauer spectroscopy and measurement of hysteresis loops and t
hermomagnetic curves, phase composition and magnetic parameters of Fe3
Si mechanically alloyed powders were studied in dependence on milling
time and subsequent heat treatment at a thermomagnetic experiment. Sam
ples of as-prepared powders show high value of coercivity, the saturat
ion magnetization and the content of amorphous Fe3Si phase raise with
increasing time of milling, the content of alpha-Fe diminishes. Heat t
reatment of samples with long enough milling time can produce almost p
erfect Fe3Si alloy.