Electrochemical polishing assisted selective laser melting of biomimetic superhydrophobic metallic parts

Wu, Wenzheng; Wang, Jiaqi; Liu, Qingping; Xiao, Haicheng; Li, Xuechao; Zhou, Yiming; Wang, Haiming; Zheng, Aodu; Zhao, Ji Feng; Ren, Luquan

doi:10.1016/j.apsusc.2022.153601

Cited by 23 publications

(4 citation statements)

References 34 publications

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“…The wet etching method involves the dissolution and removal of substrates using chemical agents, including hydrofluoric acid, hydrochloric acid, and sodium hydroxide, to preserve specific nanostructures. [138][139][140][141][142][143][144] This method is frequently utilized to fabricate micro and nanostructures on metallic material surfaces. Maitra et al utilized ferric chloride (FeCl 3 ) solution to create layered nanostructures on an aluminum (Al) surface.…”

Section: Research Progress and Inherent Challenges Of Transparent Ant...mentioning

confidence: 99%

Transparent anti-fingerprint glass surfaces: comprehensive insights into theory, design, and prospects

Wang,

Deng,

et al. 2024

Nanoscale

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Section: Research Progress and Inherent Challenges Of Transparent Ant...mentioning

confidence: 99%

Transparent anti-fingerprint glass surfaces: comprehensive insights into theory, design, and prospects

Wang,

Deng,

et al. 2024

Nanoscale

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“…39 This exceptional superhydrophobicity is attributed to the presence of parallel ridges and regular rectangular cavities at the base of the adjacent ridges on the surface of butterfly wing scales. 40 The biomimetic design of butterfly wings exhibits superhydrophobicity, 41 self-cleaning properties, 42 superoleophobicity, 43 and the ability to manipulate droplets directionally. 44 For instance, the surface-mimicking butterfly wing scales demonstrate low droplet retention forces, facilitating droplet propulsion.…”

Section: Introductionmentioning

confidence: 99%

Effective Underwater Drag Reduction: A Butterfly Wing Scale-Inspired Superhydrophobic Surface

Chen,

Hu,

Zhang

2024

ACS Appl. Mater. Interfaces

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The microstructured superhydrophobic surface serves as an alternative strategy to decrease resistance of underwater vehicles, but the sustainment of an entrapped air layer and the stability of the corresponding gas−liquid interface within textures in flow shear or high pressure are still a great challenge. Inspired by the scales of Parantica melaneus wings, we propose a biomimetic surface with a hierarchical structure featuring longitudinal ridges and regular cavities that firmly pin the gas−liquid interface. The drag reduction rate of the Butterfly Wing Scale-Like Surface (BWSLS) demonstrates a noticeable rise over the single-scale textured mainstream biomimetic surfaces at moderate Reynolds numbers. The superior drag reduction mechanism is revealed as the synergistic effect of a thicker gas film and a more pronounced secondary vortex within the hierarchical textures. The former reduces the velocity gradient near the surface, while the latter decreases the vorticity and energy dissipation. In a high hydrostatic pressure environment, the proposed surface also demonstrates significant stability of the gas−liquid interface, with a gas coverage rate of over 67% during the cyclic loading, surpassing single-structured surfaces. Our study suggests promising surface designs for optimal drag reduction by mimicking and leveraging diverse surfaces of organisms adapted to oceanic climates.

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“…[ 2 ] In particular, the wettability and adhesion of some biological surfaces may change under external stimuli. The periodic spindle structure of spider silk can move directionally to effectively collect submillimeter water droplets in fog; [ 3 ] the evenly distributed cone‐shaped spines and trichomes on cactus stems can directionally collect agglomerated droplets; [ 4 ] the ratchet‐like scales on butterfly wings have anisotropic superhydrophobicity, which can orient water droplets away their bodies; [ 5 ] desert beetles can collect fog or water vapor from the air using hydrophobic microgrooves and raised patterns of hydrophilic micrometers on their backs; [ 6 ] the periodic duckbill‐like microcavity structure of pitcher plants enables continuous water droplet transport. [ 7 ] Notably, the surfaces of these organisms tend to have hybrid periodic array structures ranging from micrometers to nanometers.…”

Section: Introductionmentioning

confidence: 99%

“…

away their bodies; [5] desert beetles can collect fog or water vapor from the air using hydrophobic microgrooves and raised patterns of hydrophilic micrometers on their backs; [6] the periodic duckbill-like microcavity structure of pitcher plants enables continuous water droplet transport. [7] Notably, the surfaces of these organisms tend to have hybrid periodic array structures ranging from micrometers to nanometers.The droplet state on the solid surface depends on the surface tension between the solid-liquid-gas three-phase interface, which is determined by the chemical composition and surface pattern.

…”

mentioning

confidence: 99%

A Review on Fabrication and Application of Tunable Hybrid Micro–Nano Array Surfaces

Jian

et al. 2023

Adv Materials Inter

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The wettability and adhesion of biological surfaces often depend on their periodically arranged hybrid micro–nano array structures. Various fabrication processes are designed to mimic biomimetic micro–nano array surfaces. This review summarizes the types of micro–nano array structures and analyzes fabrication methods based on top‐down and bottom‐up construction, including templating, etching, self‐assembly, and electrospinning/electrospraying. This review focuses on the shape reconfiguration of surface micro–nano array structures under physical stimuli, as well as the changes in material surface properties during the reconfiguration process. In addition, the applications of biomimetic micro–nano array composite surfaces in the fields of droplet transport, adhesion properties, sensors, and soft robotics are also discussed, and the current challenges and prospects in this field are identified.

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Electrochemical polishing assisted selective laser melting of biomimetic superhydrophobic metallic parts

Cited by 23 publications

References 34 publications

Transparent anti-fingerprint glass surfaces: comprehensive insights into theory, design, and prospects

Transparent anti-fingerprint glass surfaces: comprehensive insights into theory, design, and prospects

Effective Underwater Drag Reduction: A Butterfly Wing Scale-Inspired Superhydrophobic Surface

A Review on Fabrication and Application of Tunable Hybrid Micro–Nano Array Surfaces

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