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Local Anodizing of a Newly Prepared Aluminum Micrometric Disk
A search through the literature reveals that the vast majority of studies about aluminum anodizing were conducted at the macroscale (i.e., from cm(2) up to m(2)), while those focused on local anodizing (i.e., on surfaces of less than 1 mm(2)) are rare. The last ones either used insulating masks or w...
Autores principales: | , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2022
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8912718/ https://www.ncbi.nlm.nih.gov/pubmed/35269332 http://dx.doi.org/10.3390/nano12050845 |
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author | Cicutto, Ludovic Roche, Jérome Arurault, Laurent |
author_facet | Cicutto, Ludovic Roche, Jérome Arurault, Laurent |
author_sort | Cicutto, Ludovic |
collection | PubMed |
description | A search through the literature reveals that the vast majority of studies about aluminum anodizing were conducted at the macroscale (i.e., from cm(2) up to m(2)), while those focused on local anodizing (i.e., on surfaces of less than 1 mm(2)) are rare. The last ones either used insulating masks or were conducted in an electrolyte droplet. The present study describes on the one hand a new way to prepare aluminum microelectrodes of conventional disk-shaped geometry, and on the other hand the local anodizing of their respective aluminum micrometric top-disks. The influence of the anodizing voltage on anodic film characteristics (i.e., thickness, growth rate and expansion factor) was studied during local anodizing. Compared with the values reported for macroscopic anodizing, the pore diameter appears to be significantly low and the film growth rate can reach atypically high values, both specificities probably resulting from a very limited increase in the temperature on the aluminum surface during anodizing. |
format | Online Article Text |
id | pubmed-8912718 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2022 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-89127182022-03-11 Local Anodizing of a Newly Prepared Aluminum Micrometric Disk Cicutto, Ludovic Roche, Jérome Arurault, Laurent Nanomaterials (Basel) Article A search through the literature reveals that the vast majority of studies about aluminum anodizing were conducted at the macroscale (i.e., from cm(2) up to m(2)), while those focused on local anodizing (i.e., on surfaces of less than 1 mm(2)) are rare. The last ones either used insulating masks or were conducted in an electrolyte droplet. The present study describes on the one hand a new way to prepare aluminum microelectrodes of conventional disk-shaped geometry, and on the other hand the local anodizing of their respective aluminum micrometric top-disks. The influence of the anodizing voltage on anodic film characteristics (i.e., thickness, growth rate and expansion factor) was studied during local anodizing. Compared with the values reported for macroscopic anodizing, the pore diameter appears to be significantly low and the film growth rate can reach atypically high values, both specificities probably resulting from a very limited increase in the temperature on the aluminum surface during anodizing. MDPI 2022-03-02 /pmc/articles/PMC8912718/ /pubmed/35269332 http://dx.doi.org/10.3390/nano12050845 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 Cicutto, Ludovic Roche, Jérome Arurault, Laurent Local Anodizing of a Newly Prepared Aluminum Micrometric Disk |
title | Local Anodizing of a Newly Prepared Aluminum Micrometric Disk |
title_full | Local Anodizing of a Newly Prepared Aluminum Micrometric Disk |
title_fullStr | Local Anodizing of a Newly Prepared Aluminum Micrometric Disk |
title_full_unstemmed | Local Anodizing of a Newly Prepared Aluminum Micrometric Disk |
title_short | Local Anodizing of a Newly Prepared Aluminum Micrometric Disk |
title_sort | local anodizing of a newly prepared aluminum micrometric disk |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8912718/ https://www.ncbi.nlm.nih.gov/pubmed/35269332 http://dx.doi.org/10.3390/nano12050845 |
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