Abstract
In this paper we present the results of an investigation of the influence of excess energy applied through ball milling on surface hydration behavior of alumina particles manufactured by three different methods. It is shown that different hydration amount are generated due to the defects and newly generated surfaces introduced during high energy ball milling processes. And the various gibbsite/bayerite ratio of the formed hydrates are attributed to the coordination defects resulting from heat treatment during the manufacturing process. As a result, it is confirmed that the dispersant works more efficiently with particles in which hydrates are formed, and the surfaces with structures closer to gibbsite seem to respond more effectively to dispersant in slurries.
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