The mill was operated with the setting of cryogrinding time and speed. The cryogrinding time was counted by cycles (3, 6, 12 and 24) where one cycle included 15 min of precool time, 4 min grinding, and 1 min of rest. The speed was maintained at a rate of 7 counts per second (cps). After cryomilling was finished, the vials were transferred to ...Web