Rapid Fabrication of Large-Area, Corrosion-Resistant Superhydrophobic Mg Alloy Surfaces
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- 18 October 2011
- journal article
- research article
- Published by American Chemical Society (ACS) in ACS Applied Materials & Interfaces
- Vol. 3 (11), 4404-4414
- https://doi.org/10.1021/am2010527
Abstract
A superhydrophobic magnesium (Mg) alloy surface was successfully fabricated via a facile electrochemical machining process, and subsequently covered with a fluoroalkylsilane (FAS) film. The surface morphologies and chemical compositions were investigated using a scanning electron microscope (SEM) equipped with an energy-dispersive spectroscopy (EDS) and a Fourier-transform infrared spectrophotometer (FTIR). The results show hierarchal rough structures and an FAS film with a low surface energy on the Mg alloy surfaces, which confers good superhydrophobicity with a water contact angle of 165.2° and a water tilting angle of approximately 2°. The processing conditions, such as the processing time and removal rate per unit area at a constant removal mass per unit area, were investigated to determine their effects on the superhydrophobicity. Interestingly, when the removal mass per unit area is constant at approximately 11.10 mg/cm2, the superhydrophobicity does not change with the removal rate per unit area. Therefore, a superhydrophobic Mg alloy surface can be rapidly fabricated based on this property. A large-area superhydrophobic Mg alloy surface was also fabricated for the first time using a small-area moving cathode. The corrosion resistance and durability of the superhydrophobic surfaces were also examined.Keywords
This publication has 28 references indexed in Scilit:
- Facile Formation of Biomimetic Color-Tuned Superhydrophobic Magnesium Alloy with Corrosion ResistanceLangmuir, 2011
- Fabrication of hydrophobic surface with hierarchical structure on Mg alloy and its corrosion resistanceElectrochimica Acta, 2010
- Rapid Formation of a Superhydrophobic Surface on a Magnesium Alloy Coated with a Cerium Oxide Film by a Simple Immersion Process at Room Temperature and Its Chemical StabilityLangmuir, 2010
- “Electroless” E-Coating: An Innovative Surface Treatment for Magnesium AlloysElectrochemical and Solid-State Letters, 2009
- Biomimic Superhydrophobic Surface with High Adhesive ForcesIndustrial & Engineering Chemistry Research, 2008
- Petal Effect: A Superhydrophobic State with High Adhesive ForceLangmuir, 2008
- Fabrication of Superhydrophobic Surface on Magnesium AlloyChemistry Letters, 2007
- Super-hydrophobic surfaces improve corrosion resistance of copper in seawaterElectrochimica Acta, 2006
- Corrosion Studies of Rapidly Solidified Magnesium AlloysJournal of the Electrochemical Society, 1990
- Wettability of porous surfacesTransactions of the Faraday Society, 1944