Surface Characterization of Stainless Steel 316L Coated with Various Nanoparticle Types

Table 3

Multiple comparisons of nanocoating thickness at different sputtering times (1, 2, and 3 hours) and for different coating materials (Nb, Ta, and V) using Tukey’s post hoc tests.

Dependent variable	Independent variable		Mean difference	Sig
Nb	1 hr	2 hr	56.273	0.001
		3 hr	445.940	0.000
	2 hr	3 hr	389.666	0.000
Ta	1 hr	2 hr	538.666	0.000
		3 hr	990.100	0.000
	2 hr	3 hr	451.433	0.000
V	1 hr	2 hr	60.636	0.000
		3 hr	228.156	0.000
	2	3 hr	167.520	0.000
1 hr	Nb	Ta	201.836	0.000
		V	161.916	0.000
	Ta	V	363.753	0.000
2 hr	Nb	Ta	684.230	0.000
		V	157.553	0.000
	Ta	V	841.783	0.000
3 hr	Nb	Ta	745.996	0.000
		V	379.700	0.000
	Ta	V	1125.696	0.000

indicates that the mean difference is significant at the 0.05 level.