Experimentally validated phase-field model to design the wettability of micro-structured surfaces

Provenzano, Marina; Bellussi, Francesco Maria; Morciano, Matteo; Rossi, Edoardo; Schleyer, Mario; Asinari, Pietro; Straub, Thomas; Sebastiani, Marco; Fasano, Matteo

doi:10.1016/j.matdes.2023.112042

Cited by 10 publications

(2 citation statements)

References 50 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Often, the geometric parameters of pillars (height, width, distance between pillars, etc.) are used when creating ordered pillar structures instead of roughness parameters [89][90][91]. Rahmawan et al [92] explained the effect of surface roughness on super-hydrophobicity by combining the Wenzel and Cassie-Baxter models for a surface with double micro-nanoscale roughness (Figure 2).…”

Section: Experimental Data On the Interaction Of Liquid Droplets With...mentioning

confidence: 99%

Hydrophilic and Hydrophobic Surfaces: Features of Interaction with Liquid Drops

Antonov,

Islamova,

Strizhak

2023

Materials

View full text Add to dashboard Cite

The processes of interaction of liquid droplets with solid surfaces have become of interest to many researchers. The achievements of world science should be used for the development of technologies for spray cooling, metal hardening, inkjet printing, anti-icing surfaces, fire extinguishing, fuel spraying, etc. Collisions of drops with surfaces significantly affect the conditions and characteristics of heat transfer. One of the main areas of research into the interaction of drops with solid surfaces is the modification of the latter. Changes in the hydrophilic and hydrophobic properties of surfaces give the materials various functional properties—increased heat transfer, resistance to corrosion and biofouling, anti-icing, etc. This review paper describes methods for obtaining hydrophilic and hydrophobic surfaces. The features of the interaction of liquid droplets with such surfaces are considered. The existing and possible applications of modified surfaces are discussed, as well as topical areas of research.

show abstract

Section: Experimental Data On the Interaction Of Liquid Droplets With...mentioning

confidence: 99%

Hydrophilic and Hydrophobic Surfaces: Features of Interaction with Liquid Drops

Antonov,

Islamova,

Strizhak

2023

Materials

View full text Add to dashboard Cite

show abstract

“…However, models coupling microroughness and hydrophobicity were not developed. The modeling methods that have proven to be effective for investigating wettability in the presence of a rough surface morphology are molecular dynamics (MD) [51], lattice Boltzmann (LT) [52], and phase field (PF) methods [53].…”

Section: Introductionmentioning

confidence: 99%

Investigation of the Influence of Machining Parameters and Surface Roughness on the Wettability of the Al6082 Surfaces Produced with WEDM

Skondras-Giousios,

Karmiris-Obratański,

Jarosz

et al. 2024

Materials

View full text Add to dashboard Cite

Electrical Discharge Machining (EDM) is a non-conventional machining technique, capable of processing any kind of conductive material. Recently, it has been successfully utilized for producing hydrophobic characteristics in inherently hydrophilic metallic materials. In this work, Wire Electrical Discharge Machining (WEDM) was utilized for producing hydrophobic characteristics on the surface of the aluminum alloy 6082, and various parameters that can affect wettability were investigated. Adopting an orthogonal Taguchi approach, the effects of the process parameter values of peak current, pulse-on time, and gap voltage on the contact angles of the machined surfaces were investigated. After machining, all samples were observed to have obtained hydrophobic properties, reaching contact angles up to 132°. The peak current was identified as the most influential parameter regarding the contact angle, while the gap voltage was the less influential parameter. A contact angle variation of 30° was observed throughout different combinations of machining parameters. Each combination of the machining parameters resulted in a distinct surface morphology. The samples with moderate roughness values (3.4 μm > Sa > 5.7 μm) were found to be more hydrophobic than the samples with high or low values, where the contact angle was measured under 115°. In addition, the finite element modeling of the experimental setup, with parametric surfaces of uniform random and Perlin noise types of roughness, was implemented. Time dependent simulations coupling phase field and laminar flow for the modelingof the wetting of surfaces with different surface roughness characteristics showed that an increase in the Sa roughness and total wetted area can lead to an increase in the contact angle. The combination of experimental and computational results suggests that the complexity of the wettability outcomes of aluminum alloy surfaces processed with WEDM lies in the interplay between variations of the surface chemical composition, roughness, micro/nano morphology, and the surface capability of forming a composite air/water interface.

show abstract

Recent advances in the preparation of superhydrophobic coatings based on low-surface-energy modifiers: Diversified properties and potential applications

Chu,

Liu,

et al. 2024

Applied Thermal Engineering

View full text Add to dashboard Cite

Experimentally validated phase-field model to design the wettability of micro-structured surfaces

Cited by 10 publications

References 50 publications

Hydrophilic and Hydrophobic Surfaces: Features of Interaction with Liquid Drops

Hydrophilic and Hydrophobic Surfaces: Features of Interaction with Liquid Drops

Investigation of the Influence of Machining Parameters and Surface Roughness on the Wettability of the Al6082 Surfaces Produced with WEDM

Recent advances in the preparation of superhydrophobic coatings based on low-surface-energy modifiers: Diversified properties and potential applications

Contact Info

Product

Resources

About