Crystallization of Mechanically Alloyed Co-Ti Powder

Elemental cobalt and titanium powder mixtures have been mechanically alloyed (MA) to form two independent Co-Ti intermetallic compositions. In both cases nanometre-sized-crystalline particles have been embedded into an amorphous matrix. Resulting powders have been found to consist of Co66.4Fe0.6Ti33and Co48.6Fe1.0Ti50.4. At these concentrations and independent of the Fe content, formation of hexagonal Co2Ti intermetallic has been observed when heating the powders up to 873 and 1173K, respectively. Crystallization of powders also has resulted in the formation of Co3Ti and CoTi compounds, which respectively co-exist with the Co, Ti phase.