Optical and Structural Characterization of Nickel Coatings for Solar Collector Receivers

Table 2

Surface roughness of some significant samples. Rz average value of the five adjacent maximum heights of profile.

Sample	Thickness Ni	Rz
	m	m
a f	0	2.2
36 b	0.91	1.9
19 f	2.01	1.6
27 f	5.07	1.1
33 f	12.41	0.9