A novel fabrication of superhydrophobic surfaces on aluminium substrate by picosecond pulsed laser

Raja, R.; Selvakumar, P.; Бабу, П. Динеш

doi:10.1007/s12206-020-0329-7

Cited by 22 publications

(11 citation statements)

References 32 publications

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“…14,53 Careful deconvolution of this peak gives rise to four different components: 531.1 eV (assigned to Al-O bonds), 531.9 eV and 532.4 eV (both assigned to C-O bonds in an ester group). 54,55 The peak at 533.2 eV is attributed to the element O from Al 2 O 3 , AlO(OH) and the linkage formed between aluminium and carboxylic acid. XPS spectra of C 1s in Fig.…”

Section: Resultsmentioning

confidence: 99%

Fabrication of Superhydrophobic Surface on Anodized Aluminum Through a Wet-Chemical Route

Kumaravel¹,

Srikandan²,

Maruthamani³

2023

ECS J. Solid State Sci. Technol.

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Fabrication of superhydrophobic surfaces on anodized aluminum substrates by wet-chemical grafting using cost-effective chemicals through a simple immersion process is described. Formation of formate-alumoxane is possible by treating the anodized and sealed aluminum substrate with formic acid at around 50°C. On treatment with sodium salts of higher-order carboxylic acids (stearic acid, lauric acid, and palmitic acid), the formate ions are replaced by higher-order carboxylates. A possible bonding mechanism of the longer chain carboxylic acid with aluminium surfaces has been suggested based on infrared reflection–absorption spectroscopy and X-ray photoelectron spectroscopy studies. The as-prepared superhydrophobic aluminum substrates exhibited a static water contact angle of up to 167° with a sliding angle of 6°, with decent resistance against abrasion in addition to good UV, environmental and thermal stabilities. Aluminium substrates of any size, shape, and surface finish can be easily rendered robust and superhydrophobic without the use of expensive chemicals and sophisticated machinery.

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Section: Resultsmentioning

confidence: 99%

Fabrication of Superhydrophobic Surface on Anodized Aluminum Through a Wet-Chemical Route

Kumaravel¹,

Srikandan²,

Maruthamani³

2023

ECS J. Solid State Sci. Technol.

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“…After these two steps, the stainless steel surface exhibits micro-nanoscale features and a high WSCA even after using different laser power intensities (Figure 8). In another work, laser processing was used to fabricate superhydrophobic surface on aluminum substrates [70]. They used a picosecond laser system due to the lower thermal effect on the aluminum substrate and created tilted groove patterns of various angles.…”

Section: Laser Etchingmentioning

confidence: 99%

“…In another work, laser processing was used to fabricate superhydrophobic surface on aluminum substrates [70]. They used a picosecond laser system due to the lower thermal effect on the aluminum substrate and created tilted groove patterns of various angles.…”

Section: Laser Etchingmentioning

confidence: 99%

A Review of Fabrication Methods, Properties and Applications of Superhydrophobic Metals

et al. 2021

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Hydrophobicity and superhydrophobicity with self-cleaning properties are well-known characteristics of several natural surfaces, such as the leaves of the sacred lotus plant (Nelumbo nucifera). To achieve a superhydrophobic state, micro- and nanometer scale topography should be realized on a low surface energy material, or a low surface energy coating should be deposited on top of the micro-nano topography if the material is inherently hydrophilic. Tailoring the surface chemistry and topography to control the wetting properties between extreme wetting states enables a palette of functionalities, such as self-cleaning, antifogging, anti-biofouling etc. A variety of surface topographies have been realized in polymers, ceramics, and metals. Metallic surfaces are particularly important in several engineering applications (e.g., naval, aircrafts, buildings, automobile) and their transformation to superhydrophobic can provide additional functionalities, such as corrosion protection, drag reduction, and anti-icing properties. This review paper focuses on the recent advances on superhydrophobic metals and alloys which can be applicable in real life applications and aims to provide an overview of the most promising methods to achieve sustainable superhydrophobicity.

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“…[3,4] In particular, laser surface texturing has been demonstrated to be a convenient manufacturing approach to obtain advanced functionalities on a wide range of materials, mainly when sources operate with ultrashort pulses. [5] For instance, specially tailored applications address the modification of optical properties, [6,7] wetting behavior, [8,9] and biomedical performances. [10,11] Among the laserbased manufacturing methods, direct laser interference patterning (DLIP) is an advanced method for periodic surface structuring due to its high flexibility, resolution, and high throughputs.…”

Section: Introductionmentioning

confidence: 99%

Diffraction‐Based Strategy for Monitoring Topographical Features Fabricated by Direct Laser Interference Patterning

et al. 2023

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A novel fabrication of superhydrophobic surfaces on aluminium substrate by picosecond pulsed laser

Cited by 22 publications

References 32 publications

Fabrication of Superhydrophobic Surface on Anodized Aluminum Through a Wet-Chemical Route

Fabrication of Superhydrophobic Surface on Anodized Aluminum Through a Wet-Chemical Route

A Review of Fabrication Methods, Properties and Applications of Superhydrophobic Metals

Diffraction‐Based Strategy for Monitoring Topographical Features Fabricated by Direct Laser Interference Patterning

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