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Study of Micro/Nano Structuring and Mechanical Properties of KrF Excimer Laser Irradiated Al for Aerospace Industry and Surface Engineering Applications

Micro/nano structuring of KrF Excimer laser-irradiated Aluminum (Al) has been correlated with laser-produced structural and mechanical changes. The effect of non-reactive Argon (Ar) and reactive Oxygen (O(2)) environments on the surface, structural and mechanical characteristics of nano-second pulse...

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Autores principales: , Umm-i-Kalsoom, Ali, Nisar, Bashir, Shazia, Alshehri, Ali Mohammad, Begum, Narjis
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8269909/
https://www.ncbi.nlm.nih.gov/pubmed/34209319
http://dx.doi.org/10.3390/ma14133671
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author , Umm-i-Kalsoom
Ali, Nisar
Bashir, Shazia
Alshehri, Ali Mohammad
Begum, Narjis
author_facet , Umm-i-Kalsoom
Ali, Nisar
Bashir, Shazia
Alshehri, Ali Mohammad
Begum, Narjis
author_sort , Umm-i-Kalsoom
collection PubMed
description Micro/nano structuring of KrF Excimer laser-irradiated Aluminum (Al) has been correlated with laser-produced structural and mechanical changes. The effect of non-reactive Argon (Ar) and reactive Oxygen (O(2)) environments on the surface, structural and mechanical characteristics of nano-second pulsed laser-ablated Aluminum (Al) has been revealed. KrF Excimer laser with pulse duration 20 ns, central wavelength of 248 nm and repetition rate of was utilized for this purpose. Exposure of targets has been carried out for 0.86, 1, 1.13 and 1.27 J(·)cm(−2) laser fluences in non-reactive (Ar) and reactive (O(2)) ambient environments at a pressure of 100 torr. A variety of characteristics of the irradiated targets like the morphology of the surface, chemical composition, crystallinity and nano hardness were investigated by using Scanning Electron Microscopy (SEM), Atomic Force Microscopy (AFM), Energy Dispersive X-ray Spectroscopy (EDS), X-ray Diffractometer (XRD), Raman spectroscopy and Nanohardness tester techniques, respectively. The nature (reactive or non-reactive) and pressure of gas played an important role in modification of materials. In this study, a strong correlation is observed between the surface structuring, chemical composition, residual stress variation and the variation in hardness of Al surface after ablation in both ambient (Ar, O(2)). In the case of reactive environment (O(2)), the interplay among the deposition of laser energy and species of plasma of ambient gas enhances chemical reactivity, which causes the formation of oxides of aluminum (AlO, Al(2)O(3)) with high mechanical strength. That makes it useful in the field of process and aerospace industry as well as in surface engineering.
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spelling pubmed-82699092021-07-10 Study of Micro/Nano Structuring and Mechanical Properties of KrF Excimer Laser Irradiated Al for Aerospace Industry and Surface Engineering Applications , Umm-i-Kalsoom Ali, Nisar Bashir, Shazia Alshehri, Ali Mohammad Begum, Narjis Materials (Basel) Article Micro/nano structuring of KrF Excimer laser-irradiated Aluminum (Al) has been correlated with laser-produced structural and mechanical changes. The effect of non-reactive Argon (Ar) and reactive Oxygen (O(2)) environments on the surface, structural and mechanical characteristics of nano-second pulsed laser-ablated Aluminum (Al) has been revealed. KrF Excimer laser with pulse duration 20 ns, central wavelength of 248 nm and repetition rate of was utilized for this purpose. Exposure of targets has been carried out for 0.86, 1, 1.13 and 1.27 J(·)cm(−2) laser fluences in non-reactive (Ar) and reactive (O(2)) ambient environments at a pressure of 100 torr. A variety of characteristics of the irradiated targets like the morphology of the surface, chemical composition, crystallinity and nano hardness were investigated by using Scanning Electron Microscopy (SEM), Atomic Force Microscopy (AFM), Energy Dispersive X-ray Spectroscopy (EDS), X-ray Diffractometer (XRD), Raman spectroscopy and Nanohardness tester techniques, respectively. The nature (reactive or non-reactive) and pressure of gas played an important role in modification of materials. In this study, a strong correlation is observed between the surface structuring, chemical composition, residual stress variation and the variation in hardness of Al surface after ablation in both ambient (Ar, O(2)). In the case of reactive environment (O(2)), the interplay among the deposition of laser energy and species of plasma of ambient gas enhances chemical reactivity, which causes the formation of oxides of aluminum (AlO, Al(2)O(3)) with high mechanical strength. That makes it useful in the field of process and aerospace industry as well as in surface engineering. MDPI 2021-06-30 /pmc/articles/PMC8269909/ /pubmed/34209319 http://dx.doi.org/10.3390/ma14133671 Text en © 2021 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
, Umm-i-Kalsoom
Ali, Nisar
Bashir, Shazia
Alshehri, Ali Mohammad
Begum, Narjis
Study of Micro/Nano Structuring and Mechanical Properties of KrF Excimer Laser Irradiated Al for Aerospace Industry and Surface Engineering Applications
title Study of Micro/Nano Structuring and Mechanical Properties of KrF Excimer Laser Irradiated Al for Aerospace Industry and Surface Engineering Applications
title_full Study of Micro/Nano Structuring and Mechanical Properties of KrF Excimer Laser Irradiated Al for Aerospace Industry and Surface Engineering Applications
title_fullStr Study of Micro/Nano Structuring and Mechanical Properties of KrF Excimer Laser Irradiated Al for Aerospace Industry and Surface Engineering Applications
title_full_unstemmed Study of Micro/Nano Structuring and Mechanical Properties of KrF Excimer Laser Irradiated Al for Aerospace Industry and Surface Engineering Applications
title_short Study of Micro/Nano Structuring and Mechanical Properties of KrF Excimer Laser Irradiated Al for Aerospace Industry and Surface Engineering Applications
title_sort study of micro/nano structuring and mechanical properties of krf excimer laser irradiated al for aerospace industry and surface engineering applications
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8269909/
https://www.ncbi.nlm.nih.gov/pubmed/34209319
http://dx.doi.org/10.3390/ma14133671
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