Fig. 1. Photographs of pulverizing machine; hammer mill (a), hammer part of hammer mill (b), roller mill (c), roller part of rollermill (d), air-jet mill (e), inside appearance of air-jet mill (f).
Fig. 2. Photographs of MS powder using field emission scanning electron microscope prepared by hammer-mill (A), roller-mill (B), and air-jet mill (c).
Fig. 3. Average MS particle size prepared by hammer-mill, rollermill, and air-jet mill. Sample were analyzed by one-way ANOVA followed by DUNKAN test Different sample indicate significant differences at p < 0.01
Table 1. Optimal pulverization condition, pulverizing time, and loss ratio using roller-mill and air-jet mill.
Table. 2. The proximate analysis of MS powder with different pulverization mathods. Sample were analyzed by one-way ANOVA followed by DUNKAN test Different letter a, b, c indicate significant differences at p < 0.05 (mean ± STDE, %).
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