Influence of the charged amount of ball media on grinding speed in wet rotational ball milling

摘要

This paper describes the correlation between particle reduction rate and charged amount of ballsusing alumina powder as a specimen. The reduction rate of particle size increased with increasing therotation number. But in the case when ball was charged more than half the amount of volume of thepot, there exist a critical rotation number where the smallest particle was produced. Beyond thecritical rotation number where balls moved along with inner wall of pot, the powder could not beground effectively. The critical rotation number of pot depended on a charged amount of balls.