title: Superhydrophobic aluminum alloy surfaces by a novel one-step process.
abstract: A simple one-step process has been developed to render aluminum alloy surfaces superhydrophobic by immersing the aluminum alloy substrates in a solution containing NaOH and fluoroalkyl-silane (FAS-17) molecules. Scanning electron microscopy (SEM), X-ray photoelectron spectroscopy (XPS) and water contact angle measurements have been performed to characterize the morphological features, chemical composition and superhydrophobicity of the surfaces. The resulting surfaces provided a water contact angle as high as ∼162° and a contact angle hysteresis as low as ∼4°. The study indicates that it is possible to fabricate superhydrophobic aluminum surfaces easily and effectively without involving the traditional two-step processes.
authors.affiliation: Centre Universitaire de Recherche sur l'Aluminium (CURAL), Université du Québec à Chicoutimi, 555 Boulevard de l'Université, Chicoutimi, Québec G7H 2B1, Canada. snoormoh@uqac.ca
authors.forename: N
authors.initials: N
authors.lastname: Saleema
authors.forename: D K
authors.initials: DK
authors.lastname: Sarkar
authors.forename: R W
authors.initials: RW
authors.lastname: Paynter
authors.forename: X-G
authors.initials: XG
authors.lastname: Chen
mesh_terms: D000497:Alloys / Q000138:chemical synthesis*; D000535:Aluminum / Q000737:chemistry*; D057927:Hydrophobic and Hydrophilic Interactions; D008422:Materials Testing; D013499:Surface Properties
chemical_list: D000497:Alloys; D000535:Aluminum