4.7 Article

Stability and corrosion resistance of superhydrophobic surface on oxidized aluminum in NaCl aqueous solution

Journal

APPLIED SURFACE SCIENCE
Volume 333, Issue -, Pages 163-169

Publisher

ELSEVIER
DOI: 10.1016/j.apsusc.2015.02.012

Keywords

Superhydrophobicity; Corrosion; Surface chemistry; Surface morphology

Funding

  1. National Natural Science Foundation of China [21203089]
  2. International S&T Cooperation Program of China [2012DFA51200]

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Superhydrophobic surface (SHS) was fabricated on aluminum via surface roughening by NaClO and surface passivation by hexadecyltrimethoxysilane. The long-term durability for storing the sample in air and the chemical stability for contacting the sample with NaCl solution were investigated. The short-term corrosion resistance for immersing the sample in NaCl solution for 1 h was investigated by potentiodynamic polarization, and the long-term corrosion resistance for immersing the sample in NaCl solution for 7 days was investigated by variation analyses on surface wettability, surface morphology, and surface chemistry. All experimental results suggested that the so-obtained SHS possessed good stability and good corrosion resistance under the testing conditions. (C) 2015 Elsevier B.V. All rights reserved.

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