title: Nano-micro structured superhydrophobic zinc coating on steel for prevention of corrosion and ice adhesion.
abstract: Thin films of zinc have been deposited on steel substrates by electrodeposition process and further functionalized with ultra-thin films of commercial silicone rubber, in order to obtain superhydrophobic properties. Morphological feature, by scanning electron microscope (SEM), shows that the electrodeposited zinc films are composed of micro-nano rough patterns. Furthermore, chemical compositions of these films have been analyzed by X-ray diffraction (XRD) and infra-red (IRRAS). An optimum electrodeposition condition, based on electrical potential and deposition time, has been obtained which provides superhydrophobic properties with a water contact angle of 155±1°. The corrosion resistance properties, in artificial seawater, of the superhydrophobic zinc coated steel are found to be superior to bare steel. Similarly, the measured ice adhesion strength on superhydrophobic surfaces, using the centrifugal adhesion test (CAT), is found to be 6.3 times lower as compared to bare steel. This coating has promising applications in offshore environment, to mitigate corrosion and reduce ice adhesion.
authors.affiliation: Anti-icing Materials International Laboratory (AMIL), Université du Québec à Chicoutimi, 555 Blvd. Université, Chicoutimi (Saguenay), Québec G7H 2B1, Canada. Electronic address: jean-denis.brassard@uqac.ca.
authors.forename: J D
authors.initials: JD
authors.lastname: Brassard
authors.affiliation: Centre Universitaire de Recherche sur l'Aluminium (CURAL), Université du Québec à Chicoutimi, 555 Blvd. Université, Chicoutimi (Saguenay), Québec G7H 2B1, Canada.
authors.forename: D K
authors.initials: DK
authors.lastname: Sarkar
authors.affiliation: Anti-icing Materials International Laboratory (AMIL), Université du Québec à Chicoutimi, 555 Blvd. Université, Chicoutimi (Saguenay), Québec G7H 2B1, Canada.
authors.forename: J
authors.initials: J
authors.lastname: Perron
authors.affiliation: TOTAL, 2, place de la Coupole - La Défense 6, 92078 La Défense Cedex, Paris, France.
authors.forename: A
authors.initials: A
authors.lastname: Audibert-Hayet
authors.affiliation: TOTAL, 2, place de la Coupole - La Défense 6, 92078 La Défense Cedex, Paris, France.
authors.forename: D
authors.initials: D
authors.lastname: Melot
keywords: Corrosion resistance; Ice adhesion; Icephobic; Nanostructures; Superhydrophobic; Zn electrodeposition