Effect of fluoride on the thickness, surface roughness and corrosion resistance of titanium anodic oxide films formed in a phosphate buffer solution at different applied potentials
| Autor(a) principal: | |
|---|---|
| Data de Publicação: | 2020 |
| Outros Autores: | , , , , |
| Tipo de documento: | Artigo |
| Idioma: | eng |
| Título da fonte: | Research, Society and Development |
| Texto Completo: | https://rsdjournal.org/index.php/rsd/article/view/10689 |
Resumo: | The anodizing process and anions type present in the electrolyte during anodic oxidation are important parameters to improve oxide biocompatibility. From these parameters, it is possible to control the thickness and surface roughness of the oxide film. This control is of major importance, once blood clots can be avoided when the oxide film on the metal substrate has a small surface roughness (Ra ≤ 50 nm). In this paper, the thickness, surface roughness, and corrosion resistance of the anodized titanium film were studied in a phosphate buffer solution containing fluoride anions (0.6 w.t % NaF), at 20 V, 40 V, 60 V, and 80 V, using atomic force microscopy (AFM), spectroscopic ellipsometry (SE), and electrochemical impedance spectroscopy (EIS) techniques. It was observed that thickness and roughness tend to increase as the applied potential rises. For oxides grown in the solution without NaF, the growth rate is roughly 1.3 ± 0.2 nm/V. Surface roughness generally presents the same behaviour. Moreover, EIS and SE thickness measurements agree at 20 V and 60 V but disagree at 80 V. This may be associated with a possible dielectric breakdown at 80 V. The oxide film formed at 60 V showed the best corrosion resistance in relation to the other studied potentials. Globular structures were also observed using AFM on surfaces at 40 V, 60 V, and 80 V, which suggests oxide film nucleation. Oxide films formed in solution with NaF presented lower thickness, excellent corrosion resistance, and low surface roughness (Ra ≤ 50 nm). |
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Effect of fluoride on the thickness, surface roughness and corrosion resistance of titanium anodic oxide films formed in a phosphate buffer solution at different applied potentialsEfecto del fluoruro sobre el espesor, la rugosidad de la superficie y la resistencia a la corrosión de las películas de óxido anódico de titanio formadas en una solución tampón de fosfato a diferentes potenciales aplicadosEfeito do flúor na espessura, rugosidade da superfície e resistência à corrosão de filmes de óxido anódico de titânio formados em uma solução tampão fosfato m diferentes potenciais aplicadosTitanium oxideFluorideThicknessSurface roughnessCorrosion resistance.Óxido de titanioFluoruroGrosorRugosidad de la superficieResistencia a la corrosión.Óxido de titânioFluoretoEspessuraRugosidade superficialResistência à corrosão.The anodizing process and anions type present in the electrolyte during anodic oxidation are important parameters to improve oxide biocompatibility. From these parameters, it is possible to control the thickness and surface roughness of the oxide film. This control is of major importance, once blood clots can be avoided when the oxide film on the metal substrate has a small surface roughness (Ra ≤ 50 nm). In this paper, the thickness, surface roughness, and corrosion resistance of the anodized titanium film were studied in a phosphate buffer solution containing fluoride anions (0.6 w.t % NaF), at 20 V, 40 V, 60 V, and 80 V, using atomic force microscopy (AFM), spectroscopic ellipsometry (SE), and electrochemical impedance spectroscopy (EIS) techniques. It was observed that thickness and roughness tend to increase as the applied potential rises. For oxides grown in the solution without NaF, the growth rate is roughly 1.3 ± 0.2 nm/V. Surface roughness generally presents the same behaviour. Moreover, EIS and SE thickness measurements agree at 20 V and 60 V but disagree at 80 V. This may be associated with a possible dielectric breakdown at 80 V. The oxide film formed at 60 V showed the best corrosion resistance in relation to the other studied potentials. Globular structures were also observed using AFM on surfaces at 40 V, 60 V, and 80 V, which suggests oxide film nucleation. Oxide films formed in solution with NaF presented lower thickness, excellent corrosion resistance, and low surface roughness (Ra ≤ 50 nm).El proceso de anodización y el tipo de aniones presentes en el electrolito durante la oxidación anódica son parámetros importantes para mejorar la biocompatibilidad del óxido. A partir de estos parámetros, es posible controlar el espesor y la rugosidad de la superficie de la película de óxido. Este control es muí importante, una vez que se pueden evitar los coágulos de sangre cuando la película de óxido sobre el sustrato metálico tiene una pequeña rugosidad superficial (Ra ≤ 50 nm). En este artículo, se estudiaron el grosor, la rugosidad de la superficie y la resistencia a la corrosión de la película de titanio anodizado en una solución tampón de fosfato que contiene aniones fluoruro (0,6% en peso de NaF), a 20 V, 40 V, 60 V y 80 V, utilizando microscopía de fuerza atómica (AFM), técnicas de elipsometría espectroscópica (ES) y espectroscopía de impedancia electroquímica (EIE). Se observó que el espesor y la rugosidad tienden a aumentar a medida que aumenta el potencial aplicado. Para los óxidos que crecen en la solución sin NaF, la tasa de crecimiento es de aproximadamente 1,3 ± 0,2 nm/V. La rugosidad superficial presenta generalmente el mismo comportamiento. Además, las mediciones de espesores EIE y ES coinciden a 20 V y 60 V pero discrepan a 80 V. Esto puede estar asociado con una posible ruptura dieléctrica a 80 V. La película de óxido formada a 60 V mostró la mejor resistencia a la corrosión en relación con la otra potenciales estudiados. Se observaron estructuras globulares usando AFM en superficies a 40 V, 60 V y 80 V, lo que sugiere la nucleación de la película de óxido. Las películas de óxido formadas en solución con NaF presentaron menor espesor, excelente resistencia a la corrosión y baja rugosidad superficial (Ra ≤ 50 nm).O processo de anodização e o tipo de ânions presentes no eletrólito durante a oxidação anódica são parâmetros importantes para melhorar a biocompatibilidade do óxido. A partir desses parâmetros, é possível controlar a espessura e a rugosidade superficial do filme de óxido. Esse controle é muito importante, visto que a formação de coágulos sanguíneos pode ser evitada quando o filme de óxido no substrato metálico apresenta pequena rugosidade superficial (Ra ≤ 50 nm). Neste trabalho, a espessura, rugosidade superficial e resistência à corrosão do filme de titânio anodizado foram estudados em solução tampão de fosfato contendo ânions fluoreto (0,6% em peso de NaF), a 20 V, 40 V, 60 V e 80 V, usando técnicas de microscopia de força atômica (AFM), elipsometria espectroscópica (ES) e espectroscopia de impedância eletroquímica (EIE). Observou-se que a espessura e a rugosidade tendem a aumentar com o aumento do potencial aplicado. Para óxidos crescidos na solução sem NaF, a taxa de crescimento é de aproximadamente 1,3 ± 0,2 nm/V. A rugosidade superficial geralmente apresenta o mesmo comportamento. Além disso, as medidas de espessura de EIE e ES concordaram em 20 V e 60 V, mas discordaram em 80 V. Isso pode estar associado a uma possível quebra dielétrica em 80 V. O filme de óxido formado em 60 V apresentou a melhor resistência à corrosão em relação aos outros potenciais estudados. Estruturas globulares foram observadas usando AFM em superfícies a 40 V, 60 V e 80 V, o que sugere nucleação de filme de óxido. Filmes de óxido formados em solução com NaF apresentaram menor espessura, excelente resistência à corrosão e baixa rugosidade superficial (Ra ≤ 50 nm).Research, Society and Development2020-12-09info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://rsdjournal.org/index.php/rsd/article/view/1068910.33448/rsd-v9i11.10689Research, Society and Development; Vol. 9 No. 11; e95791110689Research, Society and Development; Vol. 9 Núm. 11; e95791110689Research, Society and Development; v. 9 n. 11; e957911106892525-3409reponame:Research, Society and Developmentinstname:Universidade Federal de Itajubá (UNIFEI)instacron:UNIFEIenghttps://rsdjournal.org/index.php/rsd/article/view/10689/9539Copyright (c) 2020 Gláucia Domingues; Michele de Almeida Oliveira; Nayne Barros Gonzaga Ferreira; Bhetina Cunha Gomes; Elivelton Alves Ferreira; Ladário da Silvahttps://creativecommons.org/licenses/by/4.0info:eu-repo/semantics/openAccessDomingues, GláuciaOliveira, Michele de Almeida Ferreira, Nayne Barros GonzagaGomes, Bhetina CunhaFerreira, Elivelton Alves Silva, Ladário da2020-12-10T23:37:57Zoai:ojs.pkp.sfu.ca:article/10689Revistahttps://rsdjournal.org/index.php/rsd/indexPUBhttps://rsdjournal.org/index.php/rsd/oairsd.articles@gmail.com2525-34092525-3409opendoar:2024-01-17T09:32:42.210493Research, Society and Development - Universidade Federal de Itajubá (UNIFEI)false |
| dc.title.none.fl_str_mv |
Effect of fluoride on the thickness, surface roughness and corrosion resistance of titanium anodic oxide films formed in a phosphate buffer solution at different applied potentials Efecto del fluoruro sobre el espesor, la rugosidad de la superficie y la resistencia a la corrosión de las películas de óxido anódico de titanio formadas en una solución tampón de fosfato a diferentes potenciales aplicados Efeito do flúor na espessura, rugosidade da superfície e resistência à corrosão de filmes de óxido anódico de titânio formados em uma solução tampão fosfato m diferentes potenciais aplicados |
| title |
Effect of fluoride on the thickness, surface roughness and corrosion resistance of titanium anodic oxide films formed in a phosphate buffer solution at different applied potentials |
| spellingShingle |
Effect of fluoride on the thickness, surface roughness and corrosion resistance of titanium anodic oxide films formed in a phosphate buffer solution at different applied potentials Domingues, Gláucia Titanium oxide Fluoride Thickness Surface roughness Corrosion resistance. Óxido de titanio Fluoruro Grosor Rugosidad de la superficie Resistencia a la corrosión. Óxido de titânio Fluoreto Espessura Rugosidade superficial Resistência à corrosão. |
| title_short |
Effect of fluoride on the thickness, surface roughness and corrosion resistance of titanium anodic oxide films formed in a phosphate buffer solution at different applied potentials |
| title_full |
Effect of fluoride on the thickness, surface roughness and corrosion resistance of titanium anodic oxide films formed in a phosphate buffer solution at different applied potentials |
| title_fullStr |
Effect of fluoride on the thickness, surface roughness and corrosion resistance of titanium anodic oxide films formed in a phosphate buffer solution at different applied potentials |
| title_full_unstemmed |
Effect of fluoride on the thickness, surface roughness and corrosion resistance of titanium anodic oxide films formed in a phosphate buffer solution at different applied potentials |
| title_sort |
Effect of fluoride on the thickness, surface roughness and corrosion resistance of titanium anodic oxide films formed in a phosphate buffer solution at different applied potentials |
| author |
Domingues, Gláucia |
| author_facet |
Domingues, Gláucia Oliveira, Michele de Almeida Ferreira, Nayne Barros Gonzaga Gomes, Bhetina Cunha Ferreira, Elivelton Alves Silva, Ladário da |
| author_role |
author |
| author2 |
Oliveira, Michele de Almeida Ferreira, Nayne Barros Gonzaga Gomes, Bhetina Cunha Ferreira, Elivelton Alves Silva, Ladário da |
| author2_role |
author author author author author |
| dc.contributor.author.fl_str_mv |
Domingues, Gláucia Oliveira, Michele de Almeida Ferreira, Nayne Barros Gonzaga Gomes, Bhetina Cunha Ferreira, Elivelton Alves Silva, Ladário da |
| dc.subject.por.fl_str_mv |
Titanium oxide Fluoride Thickness Surface roughness Corrosion resistance. Óxido de titanio Fluoruro Grosor Rugosidad de la superficie Resistencia a la corrosión. Óxido de titânio Fluoreto Espessura Rugosidade superficial Resistência à corrosão. |
| topic |
Titanium oxide Fluoride Thickness Surface roughness Corrosion resistance. Óxido de titanio Fluoruro Grosor Rugosidad de la superficie Resistencia a la corrosión. Óxido de titânio Fluoreto Espessura Rugosidade superficial Resistência à corrosão. |
| description |
The anodizing process and anions type present in the electrolyte during anodic oxidation are important parameters to improve oxide biocompatibility. From these parameters, it is possible to control the thickness and surface roughness of the oxide film. This control is of major importance, once blood clots can be avoided when the oxide film on the metal substrate has a small surface roughness (Ra ≤ 50 nm). In this paper, the thickness, surface roughness, and corrosion resistance of the anodized titanium film were studied in a phosphate buffer solution containing fluoride anions (0.6 w.t % NaF), at 20 V, 40 V, 60 V, and 80 V, using atomic force microscopy (AFM), spectroscopic ellipsometry (SE), and electrochemical impedance spectroscopy (EIS) techniques. It was observed that thickness and roughness tend to increase as the applied potential rises. For oxides grown in the solution without NaF, the growth rate is roughly 1.3 ± 0.2 nm/V. Surface roughness generally presents the same behaviour. Moreover, EIS and SE thickness measurements agree at 20 V and 60 V but disagree at 80 V. This may be associated with a possible dielectric breakdown at 80 V. The oxide film formed at 60 V showed the best corrosion resistance in relation to the other studied potentials. Globular structures were also observed using AFM on surfaces at 40 V, 60 V, and 80 V, which suggests oxide film nucleation. Oxide films formed in solution with NaF presented lower thickness, excellent corrosion resistance, and low surface roughness (Ra ≤ 50 nm). |
| publishDate |
2020 |
| dc.date.none.fl_str_mv |
2020-12-09 |
| dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion |
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article |
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publishedVersion |
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https://rsdjournal.org/index.php/rsd/article/view/10689 10.33448/rsd-v9i11.10689 |
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https://rsdjournal.org/index.php/rsd/article/view/10689 |
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10.33448/rsd-v9i11.10689 |
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eng |
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eng |
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https://rsdjournal.org/index.php/rsd/article/view/10689/9539 |
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https://creativecommons.org/licenses/by/4.0 info:eu-repo/semantics/openAccess |
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https://creativecommons.org/licenses/by/4.0 |
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openAccess |
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application/pdf |
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Research, Society and Development |
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Research, Society and Development |
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Research, Society and Development; Vol. 9 No. 11; e95791110689 Research, Society and Development; Vol. 9 Núm. 11; e95791110689 Research, Society and Development; v. 9 n. 11; e95791110689 2525-3409 reponame:Research, Society and Development instname:Universidade Federal de Itajubá (UNIFEI) instacron:UNIFEI |
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Universidade Federal de Itajubá (UNIFEI) |
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UNIFEI |
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UNIFEI |
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Research, Society and Development |
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Research, Society and Development |
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Research, Society and Development - Universidade Federal de Itajubá (UNIFEI) |
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rsd.articles@gmail.com |
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