Research Article

Anodisation of Aluminium Alloys by Micro-Capillary Technique as a Tool for Reliable, Cost-Efficient, and Quick Process Parameter Determination

Figure 6

Photograph of the circular areas formed by micro-capillary anodising of EN AW-7075 T73 in the potentiostatic regime in 0.4 M sulphuric acid at 0.3 V, 1.8 V, 3.8 V, and 10 V for 600 s showing interference colours from tan to blue and green under broadband incident light due to their film thickness (a) and an example in SEM imaging (b).
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(b)