| Granule morphology exerts great influences on many properties of particle clusters. To obtain diversified particle shapes under different experimental conditions, theoretical analysis and experimental study were carried out on the processing of ultra-fine SiC (Silicon Carbide is a kind of semiconductor material) with fluidized bed jet mill according to the application situation. Special attention was paid to the main factors for controlling particle shapes. The shaping technique after pulverization process and the pretreatment techniques before ultra-fine pulverization process were also presented. The results show that well spherical or rhombus-like particles could also be obtained under varied experimental conditions of fluidized-bed jet mill. Experimental investigations into primary factors showed that particle shapes are correlated with jet mill structure (nozzle quantity), manipulated variables (comminuting intensity, gas-solid concentration, pressure, grinding time), and particle properties (granular size). |
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