Evaluation of Low Voltage Anodizing Process on the Aluminum Foil in Sulphuric Acid Solution

Abstract

In this study, the anodizing process has been carried out on aluminum foil (0.20 mm thickness) by using a low voltage method. The aim of this work is to observe affect of low voltage anodizing in the surface nature of aluminum foil. The voltage was 5, 6, 7, 8, 12 and 15 V, and the duration of anodizing time was 30, 40, 50, and 60 min. The anodizing process was conducted by using 2 M aqueous sulfuric acid as an anodizing solution. The structural analysis of the oxide layer were performed by using 3D laser measurement optical microstructure. The maximum tensile load of anodized foil conduct by 5kN universal testing machine. The effect of low voltage anodizing on anodized aluminum foil microstructure, surface temperature, surface roughness, thickness, wettability, maximum tensile load, and current profile during anodizing were observed. The results obtained show that even at low voltages, the treatment has influenced the nature of the aluminum foil in terms of surface microstructure, oxide layer profile, maximum tensile load, current profile, surface temperature, wettability, and roughness.

Keywords

• surface characteristic
• low voltage
• anodized aluminum foil
• microstructure
• wettability