Formation of multi-functional TiO2 surfaces on AA2024 alloy using plasma electrolytic oxidation
Autor(a) principal: | |
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Data de Publicação: | 2021 |
Outros Autores: | , , , , , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | http://hdl.handle.net/10773/37217 |
Resumo: | Plasma electrolytic oxidation (PEO) was applied to functionalise the surface of AA2024 alloy. A potassium titanium-oxide oxalate dihydrate based aqueous electrolyte was used, which allowed the direct formation of a TiO2 surface layer on the aluminium alloy substrate. The effect of PEO treatment time and the additional presence of anatase particles in the electrolyte solution on the surface layer and its properties (corrosion, wear and photocatalytic activity) were investigated. It was found that the coating thickness and surface morphology are strongly dependent on the PEO processing time. However, the phase composition is not much affected by the treatment time and the main coating phase is rutile with a smaller amount of anatase. Adding additional anatase in the form of particles increases the amount of anatase in the coatings. The additional particle addition has only minor effect on the corrosion resistance, but reduces the wear resistance remarkably. Interestingly, the addition of anatase particles and the PEO treatment time are not effective in increasing the photocatalytic activities of the samples. |
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Formation of multi-functional TiO2 surfaces on AA2024 alloy using plasma electrolytic oxidationPlasma electrolytic oxidationMultifunctional coatingsAA2024 alloyTitanium dioxideCorrosion and wear resistancePlasma electrolytic oxidation (PEO) was applied to functionalise the surface of AA2024 alloy. A potassium titanium-oxide oxalate dihydrate based aqueous electrolyte was used, which allowed the direct formation of a TiO2 surface layer on the aluminium alloy substrate. The effect of PEO treatment time and the additional presence of anatase particles in the electrolyte solution on the surface layer and its properties (corrosion, wear and photocatalytic activity) were investigated. It was found that the coating thickness and surface morphology are strongly dependent on the PEO processing time. However, the phase composition is not much affected by the treatment time and the main coating phase is rutile with a smaller amount of anatase. Adding additional anatase in the form of particles increases the amount of anatase in the coatings. The additional particle addition has only minor effect on the corrosion resistance, but reduces the wear resistance remarkably. Interestingly, the addition of anatase particles and the PEO treatment time are not effective in increasing the photocatalytic activities of the samples.Elsevier2023-04-20T10:38:15Z2021-04-01T00:00:00Z2021-04-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10773/37217eng0169-433210.1016/j.apsusc.2020.148875Ignjatović, S.Blawert, C.Serdechnova, M.Karpushenkov, S.Damjanović, M.Karlova, P.Wieland, D.C.F.Starykevich, M.Stojanović, S.Damjanović-Vasilić, Lj.Zheludkevich, M.L.info:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2024-02-22T12:11:47Zoai:ria.ua.pt:10773/37217Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-20T03:07:50.614973Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse |
dc.title.none.fl_str_mv |
Formation of multi-functional TiO2 surfaces on AA2024 alloy using plasma electrolytic oxidation |
title |
Formation of multi-functional TiO2 surfaces on AA2024 alloy using plasma electrolytic oxidation |
spellingShingle |
Formation of multi-functional TiO2 surfaces on AA2024 alloy using plasma electrolytic oxidation Ignjatović, S. Plasma electrolytic oxidation Multifunctional coatings AA2024 alloy Titanium dioxide Corrosion and wear resistance |
title_short |
Formation of multi-functional TiO2 surfaces on AA2024 alloy using plasma electrolytic oxidation |
title_full |
Formation of multi-functional TiO2 surfaces on AA2024 alloy using plasma electrolytic oxidation |
title_fullStr |
Formation of multi-functional TiO2 surfaces on AA2024 alloy using plasma electrolytic oxidation |
title_full_unstemmed |
Formation of multi-functional TiO2 surfaces on AA2024 alloy using plasma electrolytic oxidation |
title_sort |
Formation of multi-functional TiO2 surfaces on AA2024 alloy using plasma electrolytic oxidation |
author |
Ignjatović, S. |
author_facet |
Ignjatović, S. Blawert, C. Serdechnova, M. Karpushenkov, S. Damjanović, M. Karlova, P. Wieland, D.C.F. Starykevich, M. Stojanović, S. Damjanović-Vasilić, Lj. Zheludkevich, M.L. |
author_role |
author |
author2 |
Blawert, C. Serdechnova, M. Karpushenkov, S. Damjanović, M. Karlova, P. Wieland, D.C.F. Starykevich, M. Stojanović, S. Damjanović-Vasilić, Lj. Zheludkevich, M.L. |
author2_role |
author author author author author author author author author author |
dc.contributor.author.fl_str_mv |
Ignjatović, S. Blawert, C. Serdechnova, M. Karpushenkov, S. Damjanović, M. Karlova, P. Wieland, D.C.F. Starykevich, M. Stojanović, S. Damjanović-Vasilić, Lj. Zheludkevich, M.L. |
dc.subject.por.fl_str_mv |
Plasma electrolytic oxidation Multifunctional coatings AA2024 alloy Titanium dioxide Corrosion and wear resistance |
topic |
Plasma electrolytic oxidation Multifunctional coatings AA2024 alloy Titanium dioxide Corrosion and wear resistance |
description |
Plasma electrolytic oxidation (PEO) was applied to functionalise the surface of AA2024 alloy. A potassium titanium-oxide oxalate dihydrate based aqueous electrolyte was used, which allowed the direct formation of a TiO2 surface layer on the aluminium alloy substrate. The effect of PEO treatment time and the additional presence of anatase particles in the electrolyte solution on the surface layer and its properties (corrosion, wear and photocatalytic activity) were investigated. It was found that the coating thickness and surface morphology are strongly dependent on the PEO processing time. However, the phase composition is not much affected by the treatment time and the main coating phase is rutile with a smaller amount of anatase. Adding additional anatase in the form of particles increases the amount of anatase in the coatings. The additional particle addition has only minor effect on the corrosion resistance, but reduces the wear resistance remarkably. Interestingly, the addition of anatase particles and the PEO treatment time are not effective in increasing the photocatalytic activities of the samples. |
publishDate |
2021 |
dc.date.none.fl_str_mv |
2021-04-01T00:00:00Z 2021-04-01 2023-04-20T10:38:15Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://hdl.handle.net/10773/37217 |
url |
http://hdl.handle.net/10773/37217 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
0169-4332 10.1016/j.apsusc.2020.148875 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Elsevier |
publisher.none.fl_str_mv |
Elsevier |
dc.source.none.fl_str_mv |
reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação instacron:RCAAP |
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Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
instacron_str |
RCAAP |
institution |
RCAAP |
reponame_str |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
collection |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
repository.name.fl_str_mv |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
repository.mail.fl_str_mv |
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1799137732486758400 |