Study on the influencing factors of spontaneous wettability transition behaviour on metallic-based surfaces

Wang, Jie; Wu, Mengjuan; Hou, Xianghui

doi:10.1016/j.vacuum.2022.111048

Cited by 8 publications

(4 citation statements)

References 48 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…However, the hydrophobicity was metastable and it would easily deteriorate as the measured apparent WCA was mainly attributed from the surface gaseous adsorption in air. [ 30 ]…”

Section: Resultsmentioning

confidence: 99%

“…However, the hydrophobicity was metastable and it would easily deteriorate as the measured apparent WCA was mainly attributed from the surface gaseous adsorption in air. [30] 2.4. Icing Delay of Samples Figure 3 displays the ice delay time of water droplets on 304 SS substrate and ELD coatings with different CuSO 4 additions, respectively.…”

Section: Wettability Of the Samplesmentioning

confidence: 99%

See 1 more Smart Citation

Study on the Dependence between Surface Topography and Icephobic Behavior of Ni–Cu–P Ternary Coatings

Wang,

Hou

2024

Adv Eng Mater

Self Cite

View full text Add to dashboard Cite

Unpredictable ice accretion and accumulation phenomena could lead to serious problems and even disastrous accidents. Applying icephobic coatings onto the engineering surfaces could be an effective ice protection method. The icephobicity could be mainly affected by several material strategies, such as wettability, surface topography and surface toughness, etc. In this work, several topographical surfaces (Ni‐Cu‐P coatings prepared on 304 stainless steel (SS) using electroless deposition) were critically investigated to understand the role of surface topography in affecting icephobic performances, including anti‐icing and de‐icing aspects. The freezing delay tests showed that rougher surfaces contribute to longer icing delay in anti‐icing. The ice adhesion strength results indicated that rougher surfaces led to more mechanical interlock ice and increased the ice adhesion strength between the ice‐solid interfaces. The electro‐thermal de‐icing tests indicated that the rough voids introduce large thermal resistance and impede the heat conduction, resulting in the increase in detachment duration and energy input in de‐icing. The rough asperity could introduce air pockets at the surface interfaces, which led to the difficulty of droplet phase transition. The rough structure also increased the mechanical interlock as well as the thermal resistance and impeded the heat conduction, which deteriorated the de‐icing ability.This article is protected by copyright. All rights reserved.

show abstract

“…However, the hydrophobicity was metastable and it would easily deteriorate as the measured apparent WCA was mainly attributed from the surface gaseous adsorption in air. [ 30 ]…”

Section: Resultsmentioning

confidence: 99%

Section: Wettability Of the Samplesmentioning

confidence: 99%

Study on the Dependence between Surface Topography and Icephobic Behavior of Ni–Cu–P Ternary Coatings

Wang,

Hou

2024

Adv Eng Mater

Self Cite

View full text Add to dashboard Cite

show abstract

“…Generally, the adsorption of volatile organic compounds (VOCs) in the air on a rough surface leads to the wettability transition. 9,24,36,37 These VOCs would comprise alkanes, olefins, aromatics, halogenated hydrocarbons, and oxygen-containing organic molecules, mainly from industrial products and natural processes. Researchers have revealed that wettability can be accelerated by heating under abundant VOCs in the surrounding atmosphere, such as in the case of a vacuum environment polluted by pump oil.…”

Section: ■ Results and Discussionmentioning

confidence: 99%

“…Figure d suggests that the WCA of four EPSs also increases sharply within 0–1 h. Only EPS60 can reach superhydrophobic within 1 h. With time, the WCA of EPS30, EPS40, EPS50, and EPS60 also keeps at 80°, 100°, 140°, and 155°, respectively. Generally, the adsorption of volatile organic compounds (VOCs) in the air on a rough surface leads to the wettability transition. ,,, These VOCs would comprise alkanes, olefins, aromatics, halogenated hydrocarbons, and oxygen-containing organic molecules, mainly from industrial products and natural processes. Researchers have revealed that wettability changes can be accelerated by heating under abundant VOCs in the surrounding atmosphere, such as in the case of a vacuum environment polluted by pump oil .…”

Section: Resultsmentioning

confidence: 99%

Organic Matter Transfer Caused by Concentration Difference Creates TC4 Surfaces with Switchable Wettability

Yang

Luo

et al. 2023

Langmuir

View full text Add to dashboard Cite

In this paper, low-cost electrochemical processing and heat treatment were adopted to fabricate titanium alloy surfaces with switchable wettability. Meanwhile, surface structure, roughness, and oxide content were regulated by electrochemical processing voltage. The effects of surface structure, roughness, oxide content, temperature, and time of heat treatment on switchable wettability were investigated. In addition to suitable structural conditions, surface chemistry is also crucial to preparing metal surfaces with switchable wettability. The surface chemistry of electrochemical processed surfaces was changed by organic matter transfer during heat treatment. In a certain voltage range, suitable surface structure, high roughness, and surface oxide content by high voltage contribute to the organic matter transfer. In a certain range of heating temperature and time, the concentration difference of organic matter is the premise of organic matter transfer. Concurrently, the higher the temperature, the faster the speed of organic matter transfer. Different from other relevant studies, the hypothesis that the concentration difference promotes organic matter transfer is proposed and verified by interesting experiments. The difference concentration of organic matter between the environment and the samples, as well as between the two samples, was created to promote organic matter transfer. Therefore, the electrochemical processed surfaces with switchable wettability were obtained by organic matter transfer in two ways.

show abstract

A Novel Approach for the Fabrication of Sharkskin Structured Bionic Surfaces with Hydrophobic Wettability: Laser Processing and Ordered Abrasive Belt Grinding

et al. 2023

View full text Add to dashboard Cite

Study on the influencing factors of spontaneous wettability transition behaviour on metallic-based surfaces

Cited by 8 publications

References 48 publications

Study on the Dependence between Surface Topography and Icephobic Behavior of Ni–Cu–P Ternary Coatings

Study on the Dependence between Surface Topography and Icephobic Behavior of Ni–Cu–P Ternary Coatings

Organic Matter Transfer Caused by Concentration Difference Creates TC4 Surfaces with Switchable Wettability

A Novel Approach for the Fabrication of Sharkskin Structured Bionic Surfaces with Hydrophobic Wettability: Laser Processing and Ordered Abrasive Belt Grinding

Contact Info

Product

Resources

About