Aluminum naturally forms an oxide layer on its surface when exposed to air. Anodizing in an electrolytic cell creates a thicker oxide layer that makes the part more resistant to corrosion and wear.

More information: Marco Laurence M. Budlayan et al, Droplet-Scale Conversion of Aluminum into Transparent Aluminum Oxide by Low-Voltage Anodization in an Electrowetting System, Langmuir (2025 ...

including advanced anodizing processes, trivalent chromium passivation and optimized conversion coatings. These technologies enhance corrosion resistance, improve aesthetic consistency and ensure ...

Sneck discussed the unique benefits of atomic layer deposition (ALD) anti-corrosion coatings with Aluminium oxide (Al2O3) and Yttrium oxide ... SEMI: How does ALD compare with other coating methods ...