Combined wet milling and heat treatment in water vapor for ...
a planetary ball mill (High-G BX254E, Kurimoto Ltd., Japan). The milling was conducted at 20 C for 4 h under a centrifugal acceleration of 150 G by controlling the revolution speed. The ratio of rotation/revolution speeds was xed to 0.497. A er milling, the resultant slurry and balls were separated by a screen.
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