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High-Speed Erosion Behavior of Hydrophobic Micro/Nanostructured Titanium Surfaces

Ice accretion on aircrafts or their engines can cause serious problems and even accidents. Traditional anti-icing and de-icing systems reduce engine efficiency, which can be improved by the use of hydrophobic/icephobic coatings or surfaces that reduce the amount of bleed air or electric power needed...

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Detalles Bibliográficos
Autores principales: Chen, Yong, Zhang, Jiguo
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8912732/
https://www.ncbi.nlm.nih.gov/pubmed/35269367
http://dx.doi.org/10.3390/nano12050880
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author Chen, Yong
Zhang, Jiguo
author_facet Chen, Yong
Zhang, Jiguo
author_sort Chen, Yong
collection PubMed
description Ice accretion on aircrafts or their engines can cause serious problems and even accidents. Traditional anti-icing and de-icing systems reduce engine efficiency, which can be improved by the use of hydrophobic/icephobic coatings or surfaces that reduce the amount of bleed air or electric power needed. These hydrophobic/icephobic coatings or surfaces are eroded by high-speed air flow, water droplets, ice crystals, sand, and volcanic ash, resulting in the degradation, material loss, or deterioration of the coating’s waterproof and anti-icing properties. Thus, the durability of hydrophobic micro/nanostructured surfaces is a major concern in aircraft applications. However, the mechanism responsible for material loss in hydrophobic micro/nanostructured surfaces resulting from high-speed erosion remains unclear. In this paper, hydrophobic titanium alloy surfaces with cubic pit arrays are fabricated by photoetching and tested using a high-speed sand erosion rig. Under the same impact conditions, the erosion rates of the micro/nanostructured titanium surfaces were similar to those of smooth titanium alloy, implying that the hydrophobic surface fabricated on the bulk material had erosion-resistant capabilities. The material loss mechanisms of the micro/nanostructures under different impact angles were compared, providing useful information for the future optimization of micro/nanostructures with the goal of improved erosion resistance.
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spelling pubmed-89127322022-03-11 High-Speed Erosion Behavior of Hydrophobic Micro/Nanostructured Titanium Surfaces Chen, Yong Zhang, Jiguo Nanomaterials (Basel) Article Ice accretion on aircrafts or their engines can cause serious problems and even accidents. Traditional anti-icing and de-icing systems reduce engine efficiency, which can be improved by the use of hydrophobic/icephobic coatings or surfaces that reduce the amount of bleed air or electric power needed. These hydrophobic/icephobic coatings or surfaces are eroded by high-speed air flow, water droplets, ice crystals, sand, and volcanic ash, resulting in the degradation, material loss, or deterioration of the coating’s waterproof and anti-icing properties. Thus, the durability of hydrophobic micro/nanostructured surfaces is a major concern in aircraft applications. However, the mechanism responsible for material loss in hydrophobic micro/nanostructured surfaces resulting from high-speed erosion remains unclear. In this paper, hydrophobic titanium alloy surfaces with cubic pit arrays are fabricated by photoetching and tested using a high-speed sand erosion rig. Under the same impact conditions, the erosion rates of the micro/nanostructured titanium surfaces were similar to those of smooth titanium alloy, implying that the hydrophobic surface fabricated on the bulk material had erosion-resistant capabilities. The material loss mechanisms of the micro/nanostructures under different impact angles were compared, providing useful information for the future optimization of micro/nanostructures with the goal of improved erosion resistance. MDPI 2022-03-07 /pmc/articles/PMC8912732/ /pubmed/35269367 http://dx.doi.org/10.3390/nano12050880 Text en © 2022 by the authors. https://creativecommons.org/licenses/by/4.0/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 (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Chen, Yong
Zhang, Jiguo
High-Speed Erosion Behavior of Hydrophobic Micro/Nanostructured Titanium Surfaces
title High-Speed Erosion Behavior of Hydrophobic Micro/Nanostructured Titanium Surfaces
title_full High-Speed Erosion Behavior of Hydrophobic Micro/Nanostructured Titanium Surfaces
title_fullStr High-Speed Erosion Behavior of Hydrophobic Micro/Nanostructured Titanium Surfaces
title_full_unstemmed High-Speed Erosion Behavior of Hydrophobic Micro/Nanostructured Titanium Surfaces
title_short High-Speed Erosion Behavior of Hydrophobic Micro/Nanostructured Titanium Surfaces
title_sort high-speed erosion behavior of hydrophobic micro/nanostructured titanium surfaces
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8912732/
https://www.ncbi.nlm.nih.gov/pubmed/35269367
http://dx.doi.org/10.3390/nano12050880
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