Corrosion behavior of superhydrophobic surfaces of Ti alloys in NaCl solutions

Ou, Junfei; Ming-zhi, Liu; Wen, Li; Wang, Fajun; Xue, Mingshan; Li, Changquan

doi:10.1016/j.apsusc.2012.01.066

Cited by 85 publications

(51 citation statements)

References 28 publications

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“…The mechanical properties of the superhydrophobic coatings are very important for their uses against surface erosion, friction as well as corrosion protection [42][43][44]. Keeping these important applications in mind, we will be investigating the mechanical properties of our superhydrophobic coatings in future.…”

Section: Resultsmentioning

confidence: 99%

Fluorine Based Superhydrophobic Coatings

2012

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Superhydrophobic coatings, inspired by nature, are an emerging technology. These water repellent coatings can be used as solutions for corrosion, biofouling and even water and air drag reduction applications. In this work, synthesis of monodispersive silica nanoparticles of ~120 nm diameter has been realized via Stöber process and further functionalized using fluoroalkylsilane (FAS-17) molecules to incorporate the fluorinated groups with the silica nanoparticles in an ethanolic solution. The synthesized fluorinated silica nanoparticles have been spin coated on flat aluminum alloy, silicon and glass substrates. Functionalization of silica nanoparticles with fluorinated groups has been confirmed by Fourier Transform Infrared spectroscopy (FTIR) by showing the presence of C-F and Si-O-Si bonds. The water contact angles and surface roughness increase with the number of spin-coated thin films layers. The critical size of ~119 nm renders aluminum surface superhydrophobic with three layers of coating using as-prepared nanoparticle suspended solution. On the other hand, seven layers are required for a 50 vol.% diluted solution to achieve superhydrophobicity. In both the cases, water contact angles were more than 150°, contact angle hysteresis was less than 2° having a critical roughness value of ~0.700 µm. The fluorinated silica nanoparticle coated surfaces are also transparent and can be used as paint additives to obtain transparent coatings. OPEN ACCESSAppl. Sci. 2012, 2 454

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Section: Resultsmentioning

confidence: 99%

Fluorine Based Superhydrophobic Coatings

2012

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“…It is important to mention that the mechanical properties of the superhydrophobic coatings are very important for their uses against surface erosion, friction as well as corrosion protection [31], [32], [33] and [34]. The typical hardness of the superhydrophobic coatings varies in the range of 2H to 9H and their adhesion strength is…”

Section: Methodsmentioning

confidence: 99%

Corrosion resistance properties of superhydrophobic copper surfaces fabricated by one-step electrochemical modification process

Huang

Sarkar

Gallant

et al. 2013

Applied Surface Science

127

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Highlights• Superhydrophobic copper surfaces by a one-step electrochemical modification process in an ethanolic stearic acid solution.• Analysis of the corrosion properties of as-received, hydrophobic and superhydrophobic copper surfaces.• The corrosion resistance of the superhydrophobic surface is found to be 1220 kΩ cm 2 as compared to as-received bare copper surface 1 kΩ cm 2 . AbstractSuperhydrophobic copper surfaces have been prepared by a one-step electrochemical modification process in an ethanolic stearic acid solution. In this work, the corrosion properties of hydrophobic copper surface and superhydrophobic copper surfaces were analyzed by means of electrochemical analyses and compared with that of as-received bare copper substrate. The decrease of corrosion current density (icorr) as well as the increase of polarization resistance (Rp) obtained from potentiodynamic polarization curves revealed that the superhydrophobic film on the copper surfaces improved the corrosion resistance performance of the copper substrate.Graphical Abstract

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“…The corrosion protection of SHS was related with the interfacial air pocket on the solid / liquid interface, which could hinder the penetration of corrosive species (such as Cl -dissolved in water) to reach the Al substrate [24,25] .…”

Section: Page 11 Of 22mentioning

confidence: 99%

Corrosion behavior of superhydrophobic surfaces of Ti alloys in NaCl solutions

Cited by 85 publications

References 28 publications

Fluorine Based Superhydrophobic Coatings

Fluorine Based Superhydrophobic Coatings

Corrosion resistance properties of superhydrophobic copper surfaces fabricated by one-step electrochemical modification process

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

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