Fabrication of a micro-nanostructured superhydrophobic aluminum surface with excellent corrosion resistance and anti-icing performance

Zheng, Shunli; Cheng, Li; Fu, Qiuyun; Xiang, Tengfei; Hu, Wei; Wang, Jing; Ding, Shibing; Liu, Panjin; Zhong, Cheng

doi:10.1039/c6ra13447e

Cited by 54 publications

(21 citation statements)

References 86 publications

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“…The value of |Z| 0.01 Hz of SLIPS was 10 7 U cm 2 , which was increased by two orders in comparison with the superhydrophobic surface. Similar to other reports, [42][43][44] the values of |Z| in the high-frequency range were evidently different between these four samples. The highfrequency limit of the Bode plots is supposed to represent the electrolyte resistance; the variation at 10 5 Hz was due to the air layer between the superhydrophobic interface and the solution, which made the electrolyte resistance for the superhydrophobic-coated Mg alloy larger than that for the untreated alloy.…”

supporting

confidence: 78%

Water-repellent and corrosion-resistance properties of superhydrophobic and lubricant-infused super slippery surfaces

Song

Hai-long

et al. 2017

RSC Adv.

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adInspired by lotus leaves and pitcher plants, superhydrophobic surfaces and super slippery surfaces have been fabricated to improve the characteristics of AZ31 magnesium alloy surfaces. Here, a superhydrophobic surface with a hierarchical structure was constructed on a magnesium alloy surface via a one-step, environmentally friendly method, and a slippery liquid-infused porous surface (SLIPS) was obtained by immersing the superhydrophobic surface in perfluoropolyether. Compared with an untreated magnesium alloy and the prepared superhydrophobic coating, the SLIPS coating showed good corrosion resistance in 3.5 wt% NaCl solution according to electrochemical tests. The present study provides more possibilities to extend the application of special wettable surfaces.

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supporting

confidence: 78%

Water-repellent and corrosion-resistance properties of superhydrophobic and lubricant-infused super slippery surfaces

Song

Hai-long

et al. 2017

RSC Adv.

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“…Some reports suggest that surface hydrophobicity can be applied to design the icephobic coatings due to the capability of water repellency and freezing delay [4,5]. Zheng et al fabricated superhydrophobic aluminum surface with hierarchical micro/nano structure by anodization method which had a water contact angle (WCA) of 156°, exhibiting a delay in ice formation and low ice adhesion strength of 40 KPa [6]. Wang et al reported that superhydrophobic steel surface prepared by chemical etching process demonstrated excellent anti-icing properties [7].…”

Section: Introductionmentioning

confidence: 99%

Effect of surface adsorption on icing behaviour of metallic coating

Wang

Memon

Liu

et al. 2019

Surface and Coatings Technology

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Icephobicity of materials has received intensive attention in recent years due to the increasing requirement of ice protection in aerospace, wind energy and power lines. However, the influencing factors of material icephobicity have not been well identified. In this work, the effect of surface gaseous adsorption on icing behaviour of materials was investigated for the first time.Ni-Cu-P coatings with different surface morphologies were fabricated and used as the objects of the study. Environmental scanning electron microscopy (ESEM) was utilized to observe the water condensation and ice formation on the coatings. X-ray photoelectron spectroscopy (XPS) was employed to analyse the variations of surface adsorption. Droplets icing time and ice adhesion strength of the coatings were also studied. The results showed that the icing time of water droplets on the Ni-Cu-P coatings increased significantly, and the ice adhesion strength decreased sharply with the spontaneous surface adsorption of gaseous species (mainly hydrocarbon groups) in air. The adsorbed hydrocarbon species would promote the formation of air pockets between the ice-coating interface, which could effectively reduce the interfacial contact of the formed ice with the coating. When the adsorbed hydrocarbon species were removed by plasma cleaning, water droplets tended to have more direct contacts with the coatings prior to icing, leading to the formation of interlocked ice and significantly increased the ice adhesion on the surface. The variation of surface icephobicity can also be attributed to the changes of surface energy due to the surface adsorption. The results indicated that the surface gaseous adsorption in air played an important role in determining the surface icing behaviour and the icephobicity of the materials.

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“…For example, via hydrochloric acid etching and potassium permanganate passivation, Li et al constructed micro/nano-scale terrace-like hierarchical structures on 6061 Al alloy surfaces [22]. Through anodization, a hierarchical micro-nanostructure was successfully fabricated on Al substrate by Zheng et al [23].…”

Section: Introductionmentioning

confidence: 99%

A Convenient and High-Efficient Laser Micro-Engraving Treatment for Controllable Preparation of Microstructure on Al Alloy

Tang

Shi

et al. 2018

Materials

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Surface microstructure preparation offers a promising approach for overcoming the shortcomings of Al alloy, such as poor friction resistance, low hardness and weak corrosion resistance to corrosive liquid. Though many methods for the surface microstructure preparation of Al alloy have been developed, it is difficult for most of the reported methods to regulate the as-prepared microstructure, meaning that the properties of Al alloy cannot be improved efficiently by the microstructure. Thus, the application of microstructure surface of Al alloy and microstructure preparation technology is severely limited. Aimed at this issue, a simple, convenient, high-efficient, low-cost micro-scale roughness structure construction approach that is suitable for engineering application (laser micro-engraving) was developed. The as-prepared microstructure on Al alloy surface formed by laser micro-engraving was investigated systemically. The morphology and formation mechanism of the microstructure were examined. Meanwhile, the effect of laser parameters on morphology, geometrical dimensions and composition of microstructure was investigated. The results indicate that the morphology of microstructure is affected by the overlap degree of molten pool greatly. When each molten pool does not overlap with others, successive individual pits can be constructed. When each molten pool overlaps with others for one time, successive overlapping pits will form. As the overlap degree of the molten pool further increases (overlapping with others for more than one time), the successive pits can become grooved. Because of the influence of laser beam pulse frequency and scanning speed on the diameter and distance of the molten pools, the morphology and geometrical dimensions of microstructure can vary greatly with laser parameters. As the laser beam scanning speed increases, the geometrical dimensions of as-prepared microstructure reduce significantly. In contrast, with the increase of laser beam pulse frequency, the geometrical dimensions change in a complicated manner. However, the chemical composition of microstructure is slightly affected by laser parameters. More importantly, a relationship model was successfully established, which could be used to predict and regulate the geometrical dimensions of microstructure treated by laser micro-engraving. Controllable preparation of microstructure on Al alloy is realized, leading that specific microstructure can be prepared rapidly and accurately instead of suffering from long-time experimental investigation in the future.

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Fabrication of a micro-nanostructured superhydrophobic aluminum surface with excellent corrosion resistance and anti-icing performance

Abstract: Synergy is the key to realizing superhydrophobicity. The as-prepared superhydrophobic Al surface possesses both excellent corrosion resistance and anti-icing performance.

Cited by 54 publications

References 86 publications

Water-repellent and corrosion-resistance properties of superhydrophobic and lubricant-infused super slippery surfaces

Water-repellent and corrosion-resistance properties of superhydrophobic and lubricant-infused super slippery surfaces

Effect of surface adsorption on icing behaviour of metallic coating

A Convenient and High-Efficient Laser Micro-Engraving Treatment for Controllable Preparation of Microstructure on Al Alloy

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