Superhydrophobic microspiked surface structures by ultrashort laser patterning

0553127 - FZÚ 2022 RIV GB eng J - Článek v odborném periodiku
Jagdheesh, Radhakrishnan - Kopeček, Jaromír - Brajer, Jan - Mocek, Tomáš
Superhydrophobic microspiked surface structures by ultrashort laser patterning.
Surface Engineering. Roč. 37, č. 10 (2021), s. 1266-1276. ISSN 0267-0844. E-ISSN 1743-2944
Grant CEP: GA MŠMT EF15_006/0000674; GA MŠMT LO1602
Grant ostatní: OP VVV - HiLASE-CoE(XE) CZ.02.1.01/0.0/0.0/15_006/0000674
Institucionální podpora: RVO:68378271
Klíčová slova: ultrafast laser * superhydrophobic * nanoscale * steel * picosecond and micro-cones
Obor OECD: Optics (including laser optics and quantum optics)
Impakt faktor: 2.451, rok: 2021
Způsob publikování: Omezený přístup
https://doi.org/10.1080/02670844.2021.1874651

In this study, self-organised microspiked surface structures were fabricated with a picosecond laser source on austenite stainless steel. The laser-processed surface structures were subjected to low-temperature annealing for chemical modification to reduce the surface free energy of the metal oxides formed due to laser processing. The low-temperature treatment accelerates the adsorption of organic contamination, leading to the formation of ultralow water adhesion surface in few hours compared to the prolonged ageing process. The effect of the number of pulses/spot (PPS) and fluence with respect to the geometrical shape and its impact on wetting behaviour has been systematically investigated. The density of the nanoscale protrusions and the overlay of spongy porous nanoscale structures were influenced by the number of PPS and applied energy density.
Trvalý link: http://hdl.handle.net/11104/0328142