Size Matters: From Fast Pulverization to Long-Term Grindings
Fig. 3: Particle fineness and temperatures during wet grinding of aluminum oxide with 0.1 mm grinding balls of zirconium oxide. The MM 500 was operated without cooling breaks, the total process time therefore equals the net grinding time. 2 h net grinding time was required in the MM 500 to obtain particles of 0.13 µm, whereas 5 h total process time including cooling breaks (1 h net grinding) were required in the planetary ball mill to obtain a particle size of 0.18 µm. The temperature was comparable in both mills.
(Picture: Retsch)
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