A super-hard superhydrophobic Fe-based amorphous alloy coating

Qiao, Jianghao; Jin, Xin; Qin, Jiahao; Liu, Hongtao; Luo, Yong; Zhang, Dekun

doi:10.1016/j.surfcoat.2017.11.046

Cited by 53 publications

(21 citation statements)

References 23 publications

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“…Ma et al [ 28 ] conducted thermoplastic forming to fabricate a Pd-based metallic glass surface with micro–nanolayered structures exhibiting superhydrophobicity. Qiao et al [ 29 ] obtained a superhard superhydrophobic iron-based metallic glass coating on a Q235 steel substrate via plasma spraying and surface modification with fluoroalkylsilane (FAS). Although the above-mentioned methods effectively prepared superhydrophobic surfaces, they are still limited by expensive specialised equipment, complicated production processes, and high production costs.…”

Section: Introductionmentioning

confidence: 99%

Facile Electrochemical Method for the Fabrication of Stable Corrosion-Resistant Superhydrophobic Surfaces on Zr-Based Bulk Metallic Glasses

Zhang

Sun

et al. 2021

Molecules

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Both surface microstructure and low surface energy modification play a vital role in the preparation of superhydrophobic surfaces. In this study, a safe and simple electrochemical method was developed to fabricate superhydrophobic surfaces of Zr-based metallic glasses with high corrosion resistance. First, micro–nano composite structures were generated on the surface of Zr-based metallic glasses by electrochemical etching in NaCl solution. Next, stearic acid was used to decrease surface energy. The effects of electrochemical etching time on surface morphology and wettability were also investigated through scanning electron microscopy and contact angle measurements. Furthermore, the influence of micro–nano composite structures and roughness on the wettability of Zr-based metallic glasses was analysed on the basis of the Cassie–Baxter model. The water contact angle of the surface was 154.3° ± 2.2°, and the sliding angle was < 5°, indicating good superhydrophobicity. Moreover, the potentiodynamic polarisation test and electrochemical impedance spectroscopy suggested excellent corrosion resistance performance, and the inhibition efficiency of the superhydrophobic surface reached 99.6%. Finally, the prepared superhydrophobic surface revealed excellent temperature-resistant and self-cleaning properties.

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Section: Introductionmentioning

confidence: 99%

Facile Electrochemical Method for the Fabrication of Stable Corrosion-Resistant Superhydrophobic Surfaces on Zr-Based Bulk Metallic Glasses

Zhang

Sun

et al. 2021

Molecules

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“…By studying different deposition parameters, they have been able to obtain uniform superhydrophobic (SPH) behavior on samples treated with stearic acid. Qiao and collaborators deposited hard Fe-based amorphous coatings deposited by using plasma spraying and have found that depending on the spray parameters, a wear resistant triple-level hierarchical surface morphology can be obtained [41]. When these coatings are impregnated with heptadecafluoro-1,1,2,2-tetrahydro-decyl-1-trimethoxysilane, SPH behavior is observed.…”

Section: Introductionmentioning

confidence: 99%

Evaluation of Functionalized Coatings for the Prevention of Ice Accretion by Using Icing Wind Tunnel Tests

et al. 2020

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Ice accretion presents serious safety issues, as airplanes are exposed to supercooled water droplets both on the ground and while flying through clouds in the troposphere. Prevention of icing is a main concern for both developers and users of aircraft. The successful solution of this problem implies the combination of active and passive methods and the use of advanced sensors for early detection of icing and monitoring of ice accretion and de-icing processes. This paper focuses on the development of passive solutions. These include advanced anti-icing coatings deposited by a variety of chemical methods including sol-gel, advanced paints based on polyester combined with fluorinated derivatives and applied by electrostatic spray deposition and conventional silicone-based paints modified by adding alumina nanoparticles. Water contact angle has been measured in all cases, demonstrating the hydrophobic character of the coatings. An ice accretion test has been carried out in a laboratory scale icing wind tunnel (IWT) located in a cold climate chamber. Three different studies have been undertaken: ice accretion measurement, durability of the anti-icing behavior after several icing/de-icing cycles and ice adhesion testing by means of the double lap shear test (DLST) methodology. All the studied coatings have shown significant anti-icing behavior which has been maintained, in some cases, beyond 25 cycles. Although these results are still far from any possible application for aeronautic components, they provide interesting insights for new developments and validate the laboratory scale tests.

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“…So far, plasma spray, HVOF spray and detonation spray have been commonly used to make amorphous coatings. Jiang-hao Qiao et al 15) fabricated FeCrMoCSiCoAlY amorphous coating via plasma spray. It was observed that the coating possessed a hardness of HV 0.1 884 « 61 and a good wear resistance.…”

Section: Introductionmentioning

confidence: 99%

Comparison of Microstructure and Tribological Properties of Plasma, High Velocity Oxy-Fuel and Detonation Sprayed Coatings from an Iron-Based Powder

et al. 2018

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The microstructure and tribological properties of Fe-based amorphous coatings fabricated by plasma spray, high-velocity oxygen-fuel (HVOF) spray and detonation spray have been compared. The relationship between spray technique, amorphous content, porosity and wear resistance behavior was investigated. The microstructures of the coatings were mainly composed of amorphous phase. The amorphous content of the coatings made by various spray techniques were 79.39%, 85.26% and 88.14%, respectively. The coatings exhibited better wear resistance than the stainless steel substrate. The detonation sprayed coating obtained the best wear properties, and the wear mechanism was typical fatigue wear.

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A super-hard superhydrophobic Fe-based amorphous alloy coating

Cited by 53 publications

References 23 publications

Facile Electrochemical Method for the Fabrication of Stable Corrosion-Resistant Superhydrophobic Surfaces on Zr-Based Bulk Metallic Glasses

Facile Electrochemical Method for the Fabrication of Stable Corrosion-Resistant Superhydrophobic Surfaces on Zr-Based Bulk Metallic Glasses

Evaluation of Functionalized Coatings for the Prevention of Ice Accretion by Using Icing Wind Tunnel Tests

Comparison of Microstructure and Tribological Properties of Plasma, High Velocity Oxy-Fuel and Detonation Sprayed Coatings from an Iron-Based Powder

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