Influence of Nanographite on Dry Sliding Wear Behaviour of Novel Encapsulated Squeeze Cast Al-Cu-Mg Metal Matrix Composite Using Artificial Neural Network

Table 7

Analysis of variance for signal to noise for coefficient of friction.

Source	DF	Seq SS	Adj SS	Adj MS	value	value	Contribution
	2	0.055604	0.055604	0.027802	19.31	0.001	21.32%
	2	0.128709	0.128709	0.064354	44.71	0.001	49.34%
	2	0.031144	0.031144	0.015572	10.82	0.005	11.94%
	4	0.011470	0.011470	0.002867	1.99	0.189	4.40%
	4	0.016552	0.016552	0.004138	2.87	0.095	6.35%
	4	0.005852	0.005852	0.001463	1.02	0.454	2.24%
Residual error	8	0.011516	0.011516	0.001439			4.41%
Total	26	0.260846					100.00%