[Retracted] Experimental Analysis and Optimization of Tribological Properties of Self-Lubricating Aluminum Hybrid Nanocomposites Using the Taguchi Approach

Table 8

Response table for S/N ratios: smaller is better.

Levels	Response to wear				Response to the coefficient of friction
	A	B	C	D	A	B	C	D
1	38.71	41.46	46.77	40.34	16.68	17.89	18.30	17.50
2	39.64	39.38	38.88	39.23	17.41	17.82	17.52	17.53
3	41.51	37.03	33.22	39.30	18.56	16.94	16.83	17.62
Delta	3.80	5.43	13.55	1.11	1.86	0.95	1.46	0.13
Rank	3	2	1	4	1	3	2	4