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Hydrophilic to ultrahydrophobic transition of Al 7075 by affordable ns fiber laser and vacuum processing
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SYSNO ASEP 0537715 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Hydrophilic to ultrahydrophobic transition of Al 7075 by affordable ns fiber laser and vacuum processing Author(s) Hauschwitz, Petr (FZU-D) ORCID
Jagdheesh, Radhakrishnan (FZU-D) ORCID
Rostohar, Danijela (FZU-D) ORCID
Brajer, Jan (FZU-D) ORCID
Kopeček, Jaromír (FZU-D) RID, ORCID
Jiříček, Petr (FZU-D) RID, ORCID, SAI
Houdková, Jana (FZU-D) RID, ORCID
Mocek, Tomáš (FZU-D) RID, ORCID, SAINumber of authors 8 Article number 144523 Source Title Applied Surface Science. - : Elsevier - ISSN 0169-4332
Roč. 505, Mar (2020), s. 1-7Number of pages 7 s. Language eng - English Country NL - Netherlands Keywords surface functionalization ; ultrahydrophobicity ; fiber laser ; vacuum processing Subject RIV BM - Solid Matter Physics ; Magnetism OECD category Fluids and plasma physics (including surface physics) R&D Projects EF16_013/0001406 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) LO1409 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) LM2015088 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) EF15_006/0000674 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) LM2015086 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) Method of publishing Limited access Institutional support FZU-D - RVO:68378271 UT WOS 000510846500076 EID SCOPUS 85076219936 DOI 10.1016/j.apsusc.2019.144523 Annotation A lot of research efforts have been invested in the fabrication of superhydrophobic surfaces in recent years due to many protentional applications in science and industry including anti-icing, self-cleaning and anti-corrosive surfaces. The laser as a non-polluting, precise, and flexible tool can be applied to replicate surface microstructures of extremely water repellent lotus leave surface. In this study, a common nanosecond laser source is used to fabricate super/ultrahydrophobic surfaces with different microstructure designs, contact angles above 170°, and sliding angles below 5°. The freshly processed surface is hydrophilic and becomes hydrophobic and superhydrophobic in a certain time period, which could be dramatically reduced by storing samples in a high vacuum. The transformation in wetting properties is analyzed with respect to surface geometry and surface chemistry. Workplace Institute of Physics Contact Kristina Potocká, potocka@fzu.cz, Tel.: 220 318 579 Year of Publishing 2021 Electronic address http://dx.doi.org/ 10.1016/j.apsusc.2019.144523
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