Influence of Planetary Ball Mill Parameters on Powder Flowability of AlSi10Mg with Niobium Carbide Using Central Composite Design (CCD)

Table 5

Validation of regression equation.

Run order	Predicted (P) vs. experimented (E)
	Apparent density (g/cc)			Tapped density (g/cc)			Static angle of repose (radian)
		E	Residue		E	Residue		E	Residue
E1	1.134	1.140	0.006	1.337	1.359	0.022	0.540	0.547	0.007
E2	1.254	1.270	0.016	1.528	1.529	0.001	0.584	0.567	−0.017
E3	1.258	1.258	0.000	1.514	1.522	0.008	0.529	0.531	0.002
E4	1.296	1.284	−0.012	1.575	1.608	0.033	0.566	0.597	0.031
E5	1.251	1.251	0.000	1.548	1.545	−0.003	0.528	0.510	−0.018
E6	1.251	1.251	0.000	1.548	1.545	−0.003	0.528	0.540	0.012
E7	1.163	1.161	−0.002	1.381	1.375	−0.006	0.529	0.516	−0.013
E8	1.242	1.234	−0.008	1.500	1.470	−0.030	0.483	0.479	−0.004
E9	1.254	1.242	−0.012	1.570	1.603	0.033	0.568	0.597	0.029
E10	1.290	1.292	0.002	1.583	1.531	−0.052	0.515	0.486	−0.029
E11	1.251	1.251	0.000	1.548	1.555	0.007	0.528	0.528	0.000
E12	1.266	1.276	0.010	1.531	1.507	−0.024	0.447	0.440	−0.007
E13	1.193	1.187	−0.006	1.355	1.334	−0.021	0.477	0.489	0.012
E14	1.282	1.280	−0.002	1.492	1.486	−0.006	0.502	0.488	−0.014
E15	1.323	1.333	0.010	1.560	1.537	−0.023	0.457	0.448	−0.009
E16	1.315	1.310	−0.005	1.539	1.601	0.062	0.370	0.389	0.019
E17	1.152	1.153	0.001	1.401	1.409	0.008	0.541	0.542	0.001
E18	1.251	1.251	0.000	1.548	1.545	−0.003	0.528	0.528	0.000
E19	1.251	1.251	0.000	1.548	1.545	−0.003	0.528	0.528	0.000
E20	1.251	1.251	0.000	1.548	1.545	−0.003	0.528	0.528	0.000