Mechanoactivated interaction of hematite and gallium

The aim of this work was to investigate the kinetics of structural transformations during mechanical high energy ball-milling of Fe 2O 3 with Ga in order to reveal the mechanism of the process. The structure of formed intermetallic phases and intermediate oxide compounds were studied by means of Mossbauer spectroscopy, IR spectroscopy and X-ray diffraction. After 8 min of attrition a large part of Fe 2O 3 still remains in mixture. This fact could be explained in view of melted Ga spreading over freshly prepared surfaces during milling process and incorporating into the Fe 2O 3 and intermediate oxides structures.