Controlling the wettability of stainless steel from highly-hydrophilic to super-hydrophobic by femtosecond laser-induced ripples and nanospikes
| Autor: | Emmanuel Stratakis, A. Papadopoulos, Alexandros Mimidis, Gediminas Račiukaitis, Andrius Žemaitis, Paulius Gečys, Mindaugas Gedvilas |
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| Rok vydání: | 2020 |
| Předmět: |
Range (particle radiation)
Materials science General Chemical Engineering chemistry.chemical_element 02 engineering and technology General Chemistry 010402 general chemistry 021001 nanoscience & nanotechnology Laser 01 natural sciences Fluence 0104 chemical sciences law.invention Contact angle chemistry law Femtosecond Wetting Composite material 0210 nano-technology Carbon Ultrashort pulse laser |
| Zdroj: | RSC advances. 10(62) |
| ISSN: | 2046-2069 |
| Popis: | Results on the manipulation of the wetting properties of stainless steel alloy surface by ultrashort pulse laser texturing are presented. The wide range of water droplet contact angles from highly-hydrophilic to super-hydrophobic was achieved by generation of laser-induced periodic surface structures (LIPSS) and nanospikes. In particular, the wetting state was controlled by accumulated laser fluence, which determines the carbon/oxygen content and nano-texture type of the surface after laser treatment. A super-hydrophobic water-repelling surface was generated. The simple, single-step laser processing technology was demonstrated as a promising tool for the large-scale industrial production of self-cleaning stainless steel. |
| Databáze: | OpenAIRE |
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