Fabrication of Water‐ and Ice‐Repellent Surfaces on Additive‐Manufactured Components Using Laser‐Based Microstructuring Methods

Kuisat, Florian; Ränke, Fabian; Baumann, Robert; Lasagni, Fernando; Lasagni, Andrés Fabían

doi:10.1002/adem.202101624

Cited by 6 publications

(8 citation statements)

References 33 publications

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“…To surmount this challenge, Kuisat et al combined different laser micro/nanostructuring techniques, nanosecond pulse and picosecond pulse (1064 nm, 10 ns or 10 ps, 3.2 J cm −2 or 100 W), to construct multiscale structures with feature sizes between 800 nm and 21 µm (Figure 4d). [99] The treated Ti64…”

Section: Picosecond Lasermentioning

confidence: 99%

“…combined different laser micro/nanostructuring techniques, nanosecond pulse and picosecond pulse (1064 nm, 10 ns or 10 ps, 3.2 J cm −2 or 100 W), to construct multiscale structures with feature sizes between 800 nm and 21 µm (Figure 4d). [ 99 ] The treated Ti64 and Al‐Mg‐Sc (Scalmalloy) surfaces exhibited desired patterned roughness across multiple scales for implementing water‐/ice‐repellent properties. Consequently, with the micro/nanofabrication moving forward, more complex structures with high scales will be achieved by the combination of these micro/nanofabrications or the exploration of new techniques.…”

Section: Laser Micro/nanostructuring Strategiesmentioning

confidence: 99%

“…d) Schematic of experimental setups and processes for ps-DLIP and ps-DLW process, showing well-defined patterns with different textured characteristics on Ti64 and Scalmalloy. Reproduced with permission [99]. Copyright 2022, the authors, published by Wiley-VCH.…”

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confidence: 99%

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Laser Micro/Nano‐Structuring Pushes Forward Smart Sensing: Opportunities and Challenges

Zhang

Wang

Yan

et al. 2022

Adv Funct Materials

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Post‐pandemic era poses an imperative demand on progressive sensing devices whose performance largely relies on the morphologies and structures of sensing materials. Despite substantial efforts and advances that have been made in sensing materials with different micro/nanoscale dimensionalities, it is still challenging to couple micro/nano platforms with sensing materials together for the precise and scalable production of high‐performance sensors toward practical application scenarios. Owing to noncontact, precise, and high‐efficiency features, laser micro/nanofabrication offers a promising solution to achieve high‐quality micro/nano sensors with novel functionalities in a relatively short time. Herein, this review begins with a glance over the development of micro/nano‐structured sensors and briefly discusses the importance of laser micro/nanostructuring technology for micro/nano‐engineering of the sensors. Next, representative processing methods are elaborated in detail from a laser‐pulse‐type point of view, with potential applications toward chemical, physical, and biological targets based on different sensing mechanisms summarized. Finally, the perspectives on the opportunities and challenges of laser micro/nanostructuring strategies and materials for micro/nanosensors are presented.

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Section: Picosecond Lasermentioning

confidence: 99%

Section: Laser Micro/nanostructuring Strategiesmentioning

confidence: 99%

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Laser Micro/Nano‐Structuring Pushes Forward Smart Sensing: Opportunities and Challenges

Zhang

Wang

Yan

et al. 2022

Adv Funct Materials

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“…The ablation process in the heat-affected zones and the generated microtextures lead to a very strong increase in surface area. As a result of the laser–matter interaction, the surface chemistry is also modified by thermal influence due to the high-energy laser radiation process at ambient air, which results in a hydrophilic surface oxide layer for metallic materials and an increase of free surface energy. − In this context, Kuisat et al demonstrated that additively manufactured Ti64 equipped with line-like DLIP features can be beneficial for water-repellent and anti-icing surface properties . DLIP in conjunction with ultrashort pulses (picosecond range) enables the creation of high-precision microtextures.…”

Section: Introductionmentioning

confidence: 99%

“… 21 − 23 In this context, Kuisat et al demonstrated that additively manufactured Ti64 equipped with line-like DLIP features can be beneficial for water-repellent and anti-icing surface properties. 24 DLIP in conjunction with ultrashort pulses (picosecond range) enables the creation of high-precision microtextures. This is primarily due to the ablation process involved, which results in minimal heat-affected zones and strongly reduces material remelting.…”

Section: Introductionmentioning

confidence: 99%

Functionalization of Ti64 via Direct Laser Interference Patterning and Its Influence on Wettability and Oxygen Bubble Nucleation

Heinrich,

Ränke,

Schwarzenberger

et al. 2024

Langmuir

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The nucleation of bubbles on solid surfaces is an important phenomenon in nature and technological processes like electrolysis. During proton-exchange membrane electrolysis, the nucleation and separation of the electrically nonconductive oxygen in the anodic cycle plays a crucial role to minimize the overpotential it causes in the system. This increases the efficiency of the process, making renewable energy sources and the "powerto-gas" strategy more viable. A promising approach is to optimize gas separation by surface functionalization in order to apply a more advantageous interface to industrial materials. In this work, the connection between the wettability and bubble nucleation of oxygen is investigated. For tailoring the wettability of Ti64 substrates, the direct laser interference patterning method is applied. A laser source with a wavelength of 1064 nm and a pulse duration of 12 ps is used to generate periodic pillar-like structures with different depths up to ∼5 μm. The resulting surface properties are characterized by water contact angle measurement, scanning electron microscopy, confocal microscopy, and X-ray photon spectroscopy. It was possible to generate structures with a water contact angle ranging from 20°up to nearly superhydrophobic conditions. The different wettabilities are validated based on X-ray photon spectroscopy and the different elemental composition of the samples. The results indicate that the surface character of the substrate adapts depending on the surrounding media and needs more time to reach a steady state for deeper structures. A custom setup is used to expose the functionalized surfaces to oxygen-oversaturated solutions. It is shown that a higher hydrophobicity of the structured surface yields a stronger interaction with the dissolved gas. This significantly enhances the oxygen nucleation up to nearly 350% by generating approximately 20 times more nucleation spots, but also smaller bubble sizes and a reduced detachment rate.

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Fabrication of Gradient Periodic Surface Structures on Stainless Steel Using Direct Laser Interference Patterning

Wu,

Voisiat,

Soldera

et al. 2024

Adv Eng Mater

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In this work, the fabrication of gradient periodic line‐like structures with continuously changing spatial period on stainless steel by means of two‐beam direct laser interference patterning (DLIP) is studied. A 70 ps pulsed laser operating at 532 nm wavelength and 0.64 J cm‐2 laser fluence is used to produce the gradient microstructures. By continuously changing the overlapping angle between the sub‐beams, the spatial period of gradient structures smoothly increases from 2.01 ± 0.09 to 3.99 ± 0.12 μm within a 500 μm long processed area. Different pulse‐to‐pulse overlaps are applied to study the influence of cumulated fluence on the topography of gradient structures. The surface topography is analyzed by optical confocal microscopy and is characterized by the roughness parameters Ra and Rz. Fourier Transformations of the confocal images allows the verification of the variations of the spatial periods. The experiments performed in this work provides design rules for fabricating complex microstructures in the future using DLIP‐based technology to achieve advanced surface function like anisotropic wetting or cell growth.This article is protected by copyright. All rights reserved.

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Fabrication of Water‐ and Ice‐Repellent Surfaces on Additive‐Manufactured Components Using Laser‐Based Microstructuring Methods

Abstract: The ORCID identification number(s) for the author(s) of this article can be found under https://doi.org/10.1002/adem.202101624.

Cited by 6 publications

References 33 publications

Laser Micro/Nano‐Structuring Pushes Forward Smart Sensing: Opportunities and Challenges

Laser Micro/Nano‐Structuring Pushes Forward Smart Sensing: Opportunities and Challenges

Functionalization of Ti64 via Direct Laser Interference Patterning and Its Influence on Wettability and Oxygen Bubble Nucleation

Fabrication of Gradient Periodic Surface Structures on Stainless Steel Using Direct Laser Interference Patterning

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