Basic Performance of High Speed, High Purity and High Intensive Ball Mill

The milling and mechanical alloying (MA) performances of a new high energy ball mill with functions of the powder layer formation onto inner wall of revolving vessel and the intensive impact of medium ball on the layer were studied. The high intensive mill is capable to decrease of powder size under 5 μm at 1.8 ks of treatment time for glass, bottom ash and tourmaline, and at 7.2 ks for Japanese cedar powder. In Ni-Al system, crystallite size of Ni (111) was dramatically decreased under 18 nm within 14.4 ks of milling, and further milling led to the formation of Ni3Al at 180 ks of treatment time. In this study, we develop the performance of this high intensive mill for milling, mechanical alloying and mechanochemical synthesis, which permit us to obtain higher rate of collection and lower impurity concentration of treated powders.