Constellation, le dépôt institutionnel de l'Université du Québec à Chicoutimi

Résumé

The development of corrosion resistant superhydrophobic thin films on aluminum surfaces has attracted great interest for industrial applications. In the present work, zirconium-based superhydrophobic thin films were fabricated on AA6061 aluminum alloy substrates by a simple electrodeposition process. The thin film coated Al substrate exhibited excellent superhydrophobicity with a higher water contact angle of 162 ± 3˚ compared to the hydrophilic as-received Al substrate with a contact angle of 83 ± 2˚. The surface morphology of the fabricated thin films on Al substrate shows uniform micro-nano porous structures. The polarization resistance of the as-received Al and the zirconium-based superhydrophobic thin films on the Al substrate are 23 kΩ.cm2 and 788 kΩ.cm2, respectively. These results show excellent anti-corrosion property of zirconium-based superhydrophobic thin films to provide high corrosion protection for Al substrates.