Improvement in Tribological Performance of Ni-P-TiO₂ Composite Coatings Using Taguchi Technique with Grey Relational Analysis

Table 4

Grey relational grade and its order.

Sr. number	Grey relational grade	Order
1	0.947496	2
2	0.805803	5
3	0.714934	8
4	0.780909	6
5	0.677251	11
6	0.550206	15
7	0.594452	14
8	0.510247	18
9	0.415867	24
10	0.953786	1
11	0.814688	4
12	0.673404	12
13	0.884151	3
14	0.688016	9
15	0.547376	16
16	0.650725	13
17	0.483817	19
18	0.401098	25
19	0.478937	20
20	0.444379	21
21	0.39016	26
22	0.721507	7
23	0.532218	17
24	0.429226	23
25	0.680463	10
26	0.435275	22
27	0.378835	27