Water droplets impact dynamics on laser engineered superhydrophobic ceramic surface.
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| Title: | Water droplets impact dynamics on laser engineered superhydrophobic ceramic surface. |
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| Authors: | Radhakrishnan, J.1 (AUTHOR) fsjlaser@gmail.com, Diaz, M.1 (AUTHOR), Cordovilla, F.1 (AUTHOR), Kopecek, J.2 (AUTHOR), Ocaña, José L.1 (AUTHOR) |
| Source: | Optics & Laser Technology. Feb2023:Part A, Vol. 158, pN.PAG-N.PAG. 1p. |
| Subjects: | Superhydrophobic surfaces, Ceramic engineering, Surface chemistry, Chemical properties, Analytical chemistry, Spray nozzles |
| Abstract: | • Laser-engineered surface structures promotes the breakdown of the water droplets. • Hydrodynamics is modified by surface geometry with porous, spongy structures. • Rapid wetting property transition from Hydrophilic to superhydrophobic in four hours. • Optimal depth for superwetting hierarchical surface structures is of around 1 μm. The development of superhydrophobic surfaces is significant due to the industrial applications in various fields, from energy to biomedical implants. The surface morphology and chemistry primarily govern the characteristics of the interface between the water droplet and the surfaces. Herein, a combination of laser patterning and low-pressure technique has been adopted to generate the superhydrophobic TiN surface. The superhydrophobic surface was subjected to wetting property and chemical analysis with respect to the surface geometry. The impact dynamics of water droplets at the laser-patterned superhydrophobic surface have been studied. The droplet impacts result in finger formation at the start of the spreading, and the droplets formed at the tip of fingers detached from the rim during the retraction. The resulting fragmentation favors decreased travel distance and time required for recoiling the water droplets. The fragmentation during the recoiling results from modified hydrodynamics induced by the surface morphology and wetting property. The laser-processed hierarchical surface structures are a potential method to reduce the contact time at the solid-liquid interface. [ABSTRACT FROM AUTHOR] |
| Copyright of Optics & Laser Technology is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | Engineering Source |
| FullText | Text: Availability: 0 |
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| Header | DbId: egs DbLabel: Engineering Source An: 160441842 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Water droplets impact dynamics on laser engineered superhydrophobic ceramic surface. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Radhakrishnan%2C+J%2E%22">Radhakrishnan, J.</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> fsjlaser@gmail.com</i><br /><searchLink fieldCode="AR" term="%22Diaz%2C+M%2E%22">Diaz, M.</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Cordovilla%2C+F%2E%22">Cordovilla, F.</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Kopecek%2C+J%2E%22">Kopecek, J.</searchLink><relatesTo>2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Ocaña%2C+José+L%2E%22">Ocaña, José L.</searchLink><relatesTo>1</relatesTo> (AUTHOR) – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Optics+%26+Laser+Technology%22">Optics & Laser Technology</searchLink>. Feb2023:Part A, Vol. 158, pN.PAG-N.PAG. 1p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Superhydrophobic+surfaces%22">Superhydrophobic surfaces</searchLink><br /><searchLink fieldCode="DE" term="%22Ceramic+engineering%22">Ceramic engineering</searchLink><br /><searchLink fieldCode="DE" term="%22Surface+chemistry%22">Surface chemistry</searchLink><br /><searchLink fieldCode="DE" term="%22Chemical+properties%22">Chemical properties</searchLink><br /><searchLink fieldCode="DE" term="%22Analytical+chemistry%22">Analytical chemistry</searchLink><br /><searchLink fieldCode="DE" term="%22Spray+nozzles%22">Spray nozzles</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: • Laser-engineered surface structures promotes the breakdown of the water droplets. • Hydrodynamics is modified by surface geometry with porous, spongy structures. • Rapid wetting property transition from Hydrophilic to superhydrophobic in four hours. • Optimal depth for superwetting hierarchical surface structures is of around 1 μm. The development of superhydrophobic surfaces is significant due to the industrial applications in various fields, from energy to biomedical implants. The surface morphology and chemistry primarily govern the characteristics of the interface between the water droplet and the surfaces. Herein, a combination of laser patterning and low-pressure technique has been adopted to generate the superhydrophobic TiN surface. The superhydrophobic surface was subjected to wetting property and chemical analysis with respect to the surface geometry. The impact dynamics of water droplets at the laser-patterned superhydrophobic surface have been studied. The droplet impacts result in finger formation at the start of the spreading, and the droplets formed at the tip of fingers detached from the rim during the retraction. The resulting fragmentation favors decreased travel distance and time required for recoiling the water droplets. The fragmentation during the recoiling results from modified hydrodynamics induced by the surface morphology and wetting property. The laser-processed hierarchical surface structures are a potential method to reduce the contact time at the solid-liquid interface. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Optics & Laser Technology is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
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| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1016/j.optlastec.2022.108887 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 1 StartPage: N.PAG Subjects: – SubjectFull: Superhydrophobic surfaces Type: general – SubjectFull: Ceramic engineering Type: general – SubjectFull: Surface chemistry Type: general – SubjectFull: Chemical properties Type: general – SubjectFull: Analytical chemistry Type: general – SubjectFull: Spray nozzles Type: general Titles: – TitleFull: Water droplets impact dynamics on laser engineered superhydrophobic ceramic surface. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Radhakrishnan, J. – PersonEntity: Name: NameFull: Diaz, M. – PersonEntity: Name: NameFull: Cordovilla, F. – PersonEntity: Name: NameFull: Kopecek, J. – PersonEntity: Name: NameFull: Ocaña, José L. IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 02 Text: Feb2023:Part A Type: published Y: 2023 Identifiers: – Type: issn-print Value: 00303992 Numbering: – Type: volume Value: 158 Titles: – TitleFull: Optics & Laser Technology Type: main |
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