Table 3. The milling parameters used to prepare the different powders tested in this study, with varying milling times, rotation speed and ball:powder weight ratio.

Powder	Milling Time (min)	Rotation Speed (RPM)	BPR
F1	30	200	10
F2	30	200	5
F3	30	400	10
F4	30	400	5
F5	15	200	10
F6	15	200	5
F7	15	400	10
F8	15	400	5

Non-milled mannitol (F0) was used as a control.