Abstract

An experimental procedure was developed for determining the milling parameters in the Spex 8000 Shaker mill and the vertical vibro-mill used in this work. The results were paralleled by a modelling study. The two approaches support each other. The impact energy, frequency of collisions and impact energy intensity determined in this way were used to follow the amorphization reaction of the CuTi system carried out under widely different milling treatments. To compare the transformation rates at different milling regimes, a quantitative determination of the developing amorphous fraction was obtained by the refinement of the X Ray diffraction data. The same reaction pathway is operative, irrespective of the single impact energy. Clear correlations are observed between milling parameters and reaction rate.

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