Process Parameters Optimization of Silica Sand Nanoparticles Production Using Low Speed Ball Milling Method

Table 6

SN ratio for each experiment.

Experiment	BPR	Volume of milling jar	Milling speed	SN ratio
1	1	1	1	−9.54
2	1	2	2	−9.18
3	1	3	3	−9.21
4	2	1	2	−14.39
5	2	2	3	−13.31
6	2	3	1	−13.89
7	3	1	3	−20.03
8	3	2	1	−18.02
9	3	3	2	−16.04