Effect of Anodic Current Density on Characteristics and Low Temperature IR Emissivity of Ceramic Coating on Aluminium 6061 Alloy Prepared by Microarc Oxidation

Figure 7

Surface morphologies of MAO ceramic coatings prepared at different anodic biasing current densities: (a) 10.94 A/dm², (b) 14.58 A/dm², (c) 21.88 A/dm², and (d) 43.75 A/dm².

(a)

(b)

(c)

(d)