Mechanical activation as a process of changingthe physico-chemical properties of powders is used for thepreparation of various materials. Mechanical activation of theZnO-SnO2 system was investigated in order to establish theinfluence of activation time on the phase composition, averagecrystallite size, dislocation density and specific surface area.ZnO-SnO2 mixtures (molar ratio 2:1) were examined using theX-ray powder diffraction method (XRPD). It was shown thatmechanical treatment in a planetary mill (up to 160 min) leadsto an increase of specific surface area calculated from the X-ray crystallite sizes of the constituent oxides in the ZnO-SnO2system and the significant reduction of average crystallite sizes.There was no evidence of mechanochemical reaction in theZnO-SnO2 system for the experimental conditions presented here.
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