Facile formation of biomimetic color-tuned superhydrophobic magnesium alloy with corrosion resistance

Takahiro Ishizaki, Michiru Sakamoto

Research output: Contribution to journalArticle

116 Citations (Scopus)

Abstract

The design of color-tuned magnesium alloy with anticorrosive properties and damping capacity was created by means of a simple and inexpensive method. The vertically self-aligned nano- and microsheets were formed on magnesium alloy AZ31 by a chemical-free immersion process in ultrapure water at a temperature of 120 °C, resulting in the color expression. The color changed from silver with metallic luster to some specific colors such as orange, green, and orchid, depending on the immersion time. The color-tuned magnesium alloy showed anticorrosive performance and damping capacity. In addition, the colored surface with minute surface textures was modified with n-octadecyltrimethoxysilane (ODS), leading to the formation of color-tuned superhydrophobic surfaces. The corrosion resistance of the color-tuned superhydrophobic magnesium alloy was also investigated using electrochemical potentiodynamic measurements. Moreover, the color-tuned superhydrophobic magnesium alloy showed high hydrophobicity not just for pure water but also for corrosive liquids, such as acidic, basic, and some aqueous salt solutions. In addition, the American Society for Testing and Materials (ASTM) standard D 3359-02 cross cut tape test was performed to investigate the adhesion of the color-tuned superhydrophobic film to the magnesium alloy surface.

Original languageEnglish
Pages (from-to)2375-2381
Number of pages7
JournalLangmuir
Volume27
Issue number6
DOIs
Publication statusPublished - 2011 Mar 15
Externally publishedYes

Fingerprint

biomimetics
Biomimetics
magnesium alloys
Magnesium alloys
corrosion resistance
Corrosion resistance
Color
color
submerging
Damping
damping
luster
Caustics
Water
Nanosheets
Hydrophobicity
hydrophobicity
Silver
Tapes
water

ASJC Scopus subject areas

  • Electrochemistry
  • Condensed Matter Physics
  • Surfaces and Interfaces
  • Materials Science(all)
  • Spectroscopy

Cite this

Facile formation of biomimetic color-tuned superhydrophobic magnesium alloy with corrosion resistance. / Ishizaki, Takahiro; Sakamoto, Michiru.

In: Langmuir, Vol. 27, No. 6, 15.03.2011, p. 2375-2381.

Research output: Contribution to journalArticle

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