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Femtosecond Laser Fabrication of Stable Hydrophilic and Anti-Corrosive Steel Surfaces
We report on a novel single-step method to develop steel surfaces with permanent highly hydrophilic and anti-corrosive properties, without employing any chemical coating. It is based on the femtosecond (fs) laser processing in a saturated background gas atmosphere. It is particularly shown that the...
Autores principales: | , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2019
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6829529/ https://www.ncbi.nlm.nih.gov/pubmed/31635175 http://dx.doi.org/10.3390/ma12203428 |
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author | Lanara, Christina Mimidis, Alexandros Stratakis, Emmanuel |
author_facet | Lanara, Christina Mimidis, Alexandros Stratakis, Emmanuel |
author_sort | Lanara, Christina |
collection | PubMed |
description | We report on a novel single-step method to develop steel surfaces with permanent highly hydrophilic and anti-corrosive properties, without employing any chemical coating. It is based on the femtosecond (fs) laser processing in a saturated background gas atmosphere. It is particularly shown that the fs laser microstructuring of steel in the presence of ammonia gas gives rise to pseudoperiodic arrays of microcones exhibiting highly hydrophilic properties, which are stable over time. This is in contrast to the conventional fs laser processing of steel in air, which always provides surfaces with progressively increasing hydrophobicity following irradiation. More importantly, the surfaces subjected to fs laser treatment in ammonia exhibit remarkable anti-corrosion properties, contrary to those processed in air, as well as untreated ones. The combination of two functionalities, namely hydrophilicity and corrosion resistance, together with the facile processing performed directly onto the steel surface, without the need to deposit any coating, opens the way for the laser-based production of high-performance steel components for a variety of applications, including mechanical parts, fluidic components and consumer products. |
format | Online Article Text |
id | pubmed-6829529 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2019 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-68295292019-11-18 Femtosecond Laser Fabrication of Stable Hydrophilic and Anti-Corrosive Steel Surfaces Lanara, Christina Mimidis, Alexandros Stratakis, Emmanuel Materials (Basel) Article We report on a novel single-step method to develop steel surfaces with permanent highly hydrophilic and anti-corrosive properties, without employing any chemical coating. It is based on the femtosecond (fs) laser processing in a saturated background gas atmosphere. It is particularly shown that the fs laser microstructuring of steel in the presence of ammonia gas gives rise to pseudoperiodic arrays of microcones exhibiting highly hydrophilic properties, which are stable over time. This is in contrast to the conventional fs laser processing of steel in air, which always provides surfaces with progressively increasing hydrophobicity following irradiation. More importantly, the surfaces subjected to fs laser treatment in ammonia exhibit remarkable anti-corrosion properties, contrary to those processed in air, as well as untreated ones. The combination of two functionalities, namely hydrophilicity and corrosion resistance, together with the facile processing performed directly onto the steel surface, without the need to deposit any coating, opens the way for the laser-based production of high-performance steel components for a variety of applications, including mechanical parts, fluidic components and consumer products. MDPI 2019-10-20 /pmc/articles/PMC6829529/ /pubmed/31635175 http://dx.doi.org/10.3390/ma12203428 Text en © 2019 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Article Lanara, Christina Mimidis, Alexandros Stratakis, Emmanuel Femtosecond Laser Fabrication of Stable Hydrophilic and Anti-Corrosive Steel Surfaces |
title | Femtosecond Laser Fabrication of Stable Hydrophilic and Anti-Corrosive Steel Surfaces |
title_full | Femtosecond Laser Fabrication of Stable Hydrophilic and Anti-Corrosive Steel Surfaces |
title_fullStr | Femtosecond Laser Fabrication of Stable Hydrophilic and Anti-Corrosive Steel Surfaces |
title_full_unstemmed | Femtosecond Laser Fabrication of Stable Hydrophilic and Anti-Corrosive Steel Surfaces |
title_short | Femtosecond Laser Fabrication of Stable Hydrophilic and Anti-Corrosive Steel Surfaces |
title_sort | femtosecond laser fabrication of stable hydrophilic and anti-corrosive steel surfaces |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6829529/ https://www.ncbi.nlm.nih.gov/pubmed/31635175 http://dx.doi.org/10.3390/ma12203428 |
work_keys_str_mv | AT lanarachristina femtosecondlaserfabricationofstablehydrophilicandanticorrosivesteelsurfaces AT mimidisalexandros femtosecondlaserfabricationofstablehydrophilicandanticorrosivesteelsurfaces AT stratakisemmanuel femtosecondlaserfabricationofstablehydrophilicandanticorrosivesteelsurfaces |