Investigation on anisotropic tribological properties of superhydrophobic/superlipophilic lead bronze surface textured by femtosecond laser

Huang, Jun; Yang, Song

doi:10.1016/j.apsusc.2021.152223

Cited by 29 publications

(8 citation statements)

References 45 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Therefore, the characteristics of these three groups and their percentages on the laser-ablated surface were analyzed further. The C–C/C–H group is nonpolar, ,,, which is beneficial to surface hydrophobicity. The percentages of nonpolar C–C/C–H group on the laser-ablated surface before and after annealing were 74.4 and 78.4%, respectively.…”

Section: Resultsmentioning

confidence: 99%

Achieving Superhydrophobicity of Zr-Based Metallic Glass Surfaces with Tunable Adhesion by Nanosecond Laser Ablation and Annealing

Cui

Huang

Wang

et al. 2022

ACS Appl. Mater. Interfaces

View full text Add to dashboard Cite

Tuning the surface wettability and adhesion of metallic glasses (MGs) is a promising approach to enrich their engineering applications. In this study, using nanosecond laser ablation in air, hierarchical micro/nanostructures were directly fabricated on a Zr-based MG surface. Following subsequent annealing, the surface exhibited superhydrophobicity (maximum contact angle: 166°, minimum sliding angle: 2°). Furthermore, the superhydrophobic surface could be tuned from low to high surface adhesion force by controlling the laser-ablated spot interval. By analyzing the laser-ablated structures and surface chemical compositions, the superhydrophobicity was related to the formation of hierarchical micro/nanostructures and the absorption of organic compounds with low surface free energy in air, and the change in surface adhesion force was attributed to the difference in surface roughness. The experimental results showed that the superhydrophobic surface with low adhesion force could be used in self-cleaning applications, while the superhydrophobic surfaces with different adhesion forces could be used in no-loss liquid transportation. This study provides an efficient and low-cost way to fabricate superhydrophobic MG surfaces with tunable adhesion, which will broaden the functional applications of MGs.

show abstract

Section: Resultsmentioning

confidence: 99%

Achieving Superhydrophobicity of Zr-Based Metallic Glass Surfaces with Tunable Adhesion by Nanosecond Laser Ablation and Annealing

Cui

Huang

Wang

et al. 2022

ACS Appl. Mater. Interfaces

View full text Add to dashboard Cite

show abstract

“…18,19 Because of the advantages of high precision and low thermal effects, ultrafast lasers are often used to prepare such surfaces on metal, 20,21 ceramic, 22 and polymer substrates. 23,24 However, many metals and ceramics that are ablated with a laser immediately become more hydrophilic, 25,26 which may be attributed to laser-induced surface rough structures and surface oxidation, especially for metallic materials. Therefore, in general, the wetting transition of metallic and ceramic surfaces from hydrophilic or superhydrophilic to superhydrophobic property requires the use of special chemical modifiers, but this approach has limitations due to expensive chemical reagents, 27 complicated operations, 28 and environmental risks.…”

Section: Introductionmentioning

confidence: 99%

“…Bioinspired superhydrophobic surfaces have attracted considerable attention due to their widespread applications in droplet manipulation, − oil/water separation, , friction reduction and wear resistance, , and so on. , Various methods have been developed to fabricate such surfaces, such as laser processing, , etching, , three-dimensional (3D) printing, , and self-assembly. , Because of the advantages of high precision and low thermal effects, ultrafast lasers are often used to prepare such surfaces on metal, , ceramic, and polymer substrates. , However, many metals and ceramics that are ablated with a laser immediately become more hydrophilic, , which may be attributed to laser-induced surface rough structures and surface oxidation, especially for metallic materials. Therefore, in general, the wetting transition of metallic and ceramic surfaces from hydrophilic or superhydrophilic to superhydrophobic property requires the use of special chemical modifiers, but this approach has limitations due to expensive chemical reagents, complicated operations, and environmental risks …”

Section: Introductionmentioning

confidence: 99%

Temperature-Responsive, Femtosecond Laser-Ablated Ceramic Surfaces with Switchable Wettability for On-Demand Droplet Transfer

Zheng

Yang

Wang

et al. 2023

ACS Appl. Mater. Interfaces

View full text Add to dashboard Cite

Reversible wettability transition has drawn substantial interest because of its importance for widespread applications, but facile realization of such transition on ceramic surfaces, which is promising for achieving on-demand droplet manipulation under harsh conditions, remains rare. Herein, superhydrophobic zirconia ceramic surfaces that can reversibly and repeatedly transit between superhydrophobicity and superhydrophilicity after alternate heating treatments have been fabricated using a femtosecond laser. The underlying mechanisms of the complex wettability transitions on the laser-ablated zirconia surfaces are elucidated. Hydrophilic polished zirconia surfaces immediately become superhydrophilic after laser ablation, which is mainly attributed to the amplification effect of the laser-induced micro/nanostructures and has no obvious relationship with oxygen vacancies. The obtained superhydrophilic surfaces are transformed into superhydrophobic surfaces because of rapid adsorption of airborne organic compounds driven mainly by physical interaction under heating conditions. With the alternate removal and re-adsorption of organic compounds, reversible and repeatable wettability transition between superhydrophobicity and superhydrophilicity happens on the zirconia surfaces. The laser-induced micro/nanostructures also contribute to the wettability transitions. Furthermore, utilizing the superhydrophobic zirconia surfaces with switchable wettability, on-demand transfer of strong acid droplet in air and oil droplet under strong acid solution has been achieved. This work will inspire the environmentally friendly fabrication of switchable superhydrophobic ceramic surfaces and their multifunctional applications under harsh conditions.

show abstract

“…Although the amorphous material reinforced phase can improve the mechanical properties of AMCs, it cannot effectively improve the contact state between the piston and cylinder during operation. It has been shown that the bionic non-smooth friction surface can easily adsorb and store oil lm to improve the lubrication effect [19], which can effectively reduce the friction coe cient and reduce the wear of materials [20]. Therefore, researchers have begun to combine traditional material modi cation techniques with bionic surface microtexturing.…”

Section: Introductionmentioning

confidence: 99%

Synergistic effect of Fe-amorphous and bionic microtexture in enhancing high-temperature tribological properties of Al-12Si piston materials

Wang,

Lin,

Yin

et al. 2023

Preprint

View full text Add to dashboard Cite

The objective of this study is to enhance the friction properties of piston materials under high temperatures. To achieve this, we developed a novel piston composite material (Fe-amorphous/Al-12Si) by incorporating Fe-amorphous. Additionally, we employed bionic micro-textured laser surface treatment technology to improve its wear resistance. The influence of Fe-amorphous content on the frictional properties of the composite material was investigated, together with the synergistic mechanism of Fe-amorphous addition and biomimetic texture on Al-12Si under the lubrication conditions of B30 biodiesel diluted engine oil. The results indicate that the frictional properties of the untextured surface of the Fe-amorphous/Al-12Si composite material depend primarily on the amount of Fe-amorphous added. The 10 wt% Fe-amorphous/Al-12Si composite exhibits a dense, void-free microstructure with optimum anti-friction and anti-wear performance. It is noteworthy that the interaction between the "anchoring effect" caused by the Fe-amorphous addition and the "fluid-dynamic lubrication effect" induced by the biomimetic texture further enhances the high-temperature friction properties of Al-12Si. Therefore, this study provides a novel approach for the development of piston materials for biodiesel engines.

show abstract

Investigation on anisotropic tribological properties of superhydrophobic/superlipophilic lead bronze surface textured by femtosecond laser

Cited by 29 publications

References 45 publications

Achieving Superhydrophobicity of Zr-Based Metallic Glass Surfaces with Tunable Adhesion by Nanosecond Laser Ablation and Annealing

Achieving Superhydrophobicity of Zr-Based Metallic Glass Surfaces with Tunable Adhesion by Nanosecond Laser Ablation and Annealing

Temperature-Responsive, Femtosecond Laser-Ablated Ceramic Surfaces with Switchable Wettability for On-Demand Droplet Transfer

Synergistic effect of Fe-amorphous and bionic microtexture in enhancing high-temperature tribological properties of Al-12Si piston materials

Contact Info

Product

Resources

About