Table 8.

Optimal solutions at different function weightages of the weighted sum multi-objective optimization.

Function Weightage	Yield $\left(w1\right)$	1	0.9	0.5	0.1	0
	$t_{90}\left(w2\right)$	0	0.1	0.5	0.9	1
Optimized Parameters	L/S	0.68	0.68	0.72	0.765	0.8
	WMT $\left(\mathit{sec}\right)$	240	281.8	309.5	240	480
	Mill RPM	2477.8	2276.4	1500	1500	1500
	Mill Time $\left(\mathit{min}\right)$	15	15	14.93	13.74	0.5
Predicted Quality Metrics	Yield	0.90	0.87	0.77	0.67	0.18
	$t_{90}\left(\mathit{hrs}\right)$	3.37	3.88	4.38	4.44	4.62
	$t_{50}\left(\mathit{hrs}\right)$	1.78	1.93	2.04	2.02	2.16
	$t_{10}\left(\mathit{hrs}\right)$	0.39	0.43	0.44	0.40	0.42