Oxide coating containing apatite formed on Ti-25Nb-25Ta alloy treated by Two-Step Plasma Electrolytic Oxidation

Detalhes bibliográficos
Autor(a) principal: Pereira, Bruno Leandro
Data de Publicação: 2020
Outros Autores: Beilner, Gregory, Lepienski, Carlos Mauricio, Szameitat, Erico Saito, Chee, Bor Shin, Kuromoto, Neide Kazue, Santos, Leonardo Luis dos, Mazzaro, Irineu, Rosifini Alves Claro, Ana Paula [UNESP], Nugent, Michael J. D.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UNESP
Texto Completo: http://dx.doi.org/10.1016/j.surfcoat.2019.125224
http://hdl.handle.net/11449/196528
Resumo: Hydroxyapatite (HA) is a bioactive calcium phosphate capable of enhancing the implant/bone connection improving osteoconductivity and osseointegration process. However, the HA presents mechanical properties limiting its application. A good way to resolve this limitation is to combine the excellent biological properties of HA with materials with suitable mechanical behavior, like Ti-25Nb-25Ta alloy. The Ti-25Nb-25Ta alloy is cornposted by non-toxic and corrosion-resistant elements, presenting good biological compatibility. In this work, Plasma Electrolytic Oxidation (PEO) (using direct current-DC) was applied in conventional mode and Two-Step PEO aiming to produce a porous coating containing HA. It was not possible to produce a satisfactory coating applying conventional PEO due to successive spalling during the oxidation process. Adding a pretreatment to the conventional PEO changed the process to Two -Step PEO allowing to form a porous coating containing HA. The pretreatment was made by PEO using phosphoric electrolyte to produce a pre-coating. After that, the pre-coating was re-oxidized with calcium/phosphorus electrolyte. The Two -Step oxidized surface presented well-known good characteristics to applications in osseous implant devices such as porous formation, roughness in the micrometrical range, surface containing calcium and phosphorus, bioactive crystalline titanium oxide, and well adhered HA formation. However, the coating morphology and chemical composition of pre-coating and Two Step oxidized surfaces were not uniform. The non-uniformity of the Two -Step oxidized surface follows a similar non-uniformity pattern of the pre-coating surface. Two distinct morphologies were identified on the Two-Step oxidized surface: a velvety morphology with HA formation and a highly porous morphology. Regarding the Ti-25Nb-25Ta alloy, the Two-Step oxidation produced an adhered coating with porous apatite distribution interspersed with calcium-rich porous oxide.
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spelling Oxide coating containing apatite formed on Ti-25Nb-25Ta alloy treated by Two-Step Plasma Electrolytic Oxidationbeta-Titanium alloysTi-25Nb-25TaHydroxyapatiteTwo-Step PEONanoscratch testHydroxyapatite (HA) is a bioactive calcium phosphate capable of enhancing the implant/bone connection improving osteoconductivity and osseointegration process. However, the HA presents mechanical properties limiting its application. A good way to resolve this limitation is to combine the excellent biological properties of HA with materials with suitable mechanical behavior, like Ti-25Nb-25Ta alloy. The Ti-25Nb-25Ta alloy is cornposted by non-toxic and corrosion-resistant elements, presenting good biological compatibility. In this work, Plasma Electrolytic Oxidation (PEO) (using direct current-DC) was applied in conventional mode and Two-Step PEO aiming to produce a porous coating containing HA. It was not possible to produce a satisfactory coating applying conventional PEO due to successive spalling during the oxidation process. Adding a pretreatment to the conventional PEO changed the process to Two -Step PEO allowing to form a porous coating containing HA. The pretreatment was made by PEO using phosphoric electrolyte to produce a pre-coating. After that, the pre-coating was re-oxidized with calcium/phosphorus electrolyte. The Two -Step oxidized surface presented well-known good characteristics to applications in osseous implant devices such as porous formation, roughness in the micrometrical range, surface containing calcium and phosphorus, bioactive crystalline titanium oxide, and well adhered HA formation. However, the coating morphology and chemical composition of pre-coating and Two Step oxidized surfaces were not uniform. The non-uniformity of the Two -Step oxidized surface follows a similar non-uniformity pattern of the pre-coating surface. Two distinct morphologies were identified on the Two-Step oxidized surface: a velvety morphology with HA formation and a highly porous morphology. Regarding the Ti-25Nb-25Ta alloy, the Two-Step oxidation produced an adhered coating with porous apatite distribution interspersed with calcium-rich porous oxide.LORXI at UFPR, BrazilUniv Fed Parana, Postgrad Program Mat Engn & Sci PIPE, Curitiba, Parana, BrazilAthlone Inst Technol, MRI, Athlone, IrelandUniv Tecnol Fed Parana, Dept Mech Engn Curitiba, Curitiba, Parana, BrazilUniv Fed Parana, Dept Phys, Curitiba, PR, BrazilUniv Estadual Paulista, Dept Mat & Technol, Guaratingueta, SP, BrazilUniv Estadual Paulista, Dept Mat & Technol, Guaratingueta, SP, BrazilLORXI at UFPR, Brazil: FINEP CT-INFRA 793/2004LORXI at UFPR, Brazil: 3080/2011Elsevier B.V.Univ Fed ParanaAthlone Inst TechnolUniv Tecnol Fed ParanaUniversidade Estadual Paulista (Unesp)Pereira, Bruno LeandroBeilner, GregoryLepienski, Carlos MauricioSzameitat, Erico SaitoChee, Bor ShinKuromoto, Neide KazueSantos, Leonardo Luis dosMazzaro, IrineuRosifini Alves Claro, Ana Paula [UNESP]Nugent, Michael J. D.2020-12-10T19:47:51Z2020-12-10T19:47:51Z2020-01-25info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article8http://dx.doi.org/10.1016/j.surfcoat.2019.125224Surface & Coatings Technology. Lausanne: Elsevier Science Sa, v. 382, 8 p., 2020.0257-8972http://hdl.handle.net/11449/19652810.1016/j.surfcoat.2019.125224WOS:000509631200015Web of Sciencereponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengSurface & Coatings Technologyinfo:eu-repo/semantics/openAccess2024-07-02T15:04:05Zoai:repositorio.unesp.br:11449/196528Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T21:16:35.223807Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false
dc.title.none.fl_str_mv Oxide coating containing apatite formed on Ti-25Nb-25Ta alloy treated by Two-Step Plasma Electrolytic Oxidation
title Oxide coating containing apatite formed on Ti-25Nb-25Ta alloy treated by Two-Step Plasma Electrolytic Oxidation
spellingShingle Oxide coating containing apatite formed on Ti-25Nb-25Ta alloy treated by Two-Step Plasma Electrolytic Oxidation
Pereira, Bruno Leandro
beta-Titanium alloys
Ti-25Nb-25Ta
Hydroxyapatite
Two-Step PEO
Nanoscratch test
title_short Oxide coating containing apatite formed on Ti-25Nb-25Ta alloy treated by Two-Step Plasma Electrolytic Oxidation
title_full Oxide coating containing apatite formed on Ti-25Nb-25Ta alloy treated by Two-Step Plasma Electrolytic Oxidation
title_fullStr Oxide coating containing apatite formed on Ti-25Nb-25Ta alloy treated by Two-Step Plasma Electrolytic Oxidation
title_full_unstemmed Oxide coating containing apatite formed on Ti-25Nb-25Ta alloy treated by Two-Step Plasma Electrolytic Oxidation
title_sort Oxide coating containing apatite formed on Ti-25Nb-25Ta alloy treated by Two-Step Plasma Electrolytic Oxidation
author Pereira, Bruno Leandro
author_facet Pereira, Bruno Leandro
Beilner, Gregory
Lepienski, Carlos Mauricio
Szameitat, Erico Saito
Chee, Bor Shin
Kuromoto, Neide Kazue
Santos, Leonardo Luis dos
Mazzaro, Irineu
Rosifini Alves Claro, Ana Paula [UNESP]
Nugent, Michael J. D.
author_role author
author2 Beilner, Gregory
Lepienski, Carlos Mauricio
Szameitat, Erico Saito
Chee, Bor Shin
Kuromoto, Neide Kazue
Santos, Leonardo Luis dos
Mazzaro, Irineu
Rosifini Alves Claro, Ana Paula [UNESP]
Nugent, Michael J. D.
author2_role author
author
author
author
author
author
author
author
author
dc.contributor.none.fl_str_mv Univ Fed Parana
Athlone Inst Technol
Univ Tecnol Fed Parana
Universidade Estadual Paulista (Unesp)
dc.contributor.author.fl_str_mv Pereira, Bruno Leandro
Beilner, Gregory
Lepienski, Carlos Mauricio
Szameitat, Erico Saito
Chee, Bor Shin
Kuromoto, Neide Kazue
Santos, Leonardo Luis dos
Mazzaro, Irineu
Rosifini Alves Claro, Ana Paula [UNESP]
Nugent, Michael J. D.
dc.subject.por.fl_str_mv beta-Titanium alloys
Ti-25Nb-25Ta
Hydroxyapatite
Two-Step PEO
Nanoscratch test
topic beta-Titanium alloys
Ti-25Nb-25Ta
Hydroxyapatite
Two-Step PEO
Nanoscratch test
description Hydroxyapatite (HA) is a bioactive calcium phosphate capable of enhancing the implant/bone connection improving osteoconductivity and osseointegration process. However, the HA presents mechanical properties limiting its application. A good way to resolve this limitation is to combine the excellent biological properties of HA with materials with suitable mechanical behavior, like Ti-25Nb-25Ta alloy. The Ti-25Nb-25Ta alloy is cornposted by non-toxic and corrosion-resistant elements, presenting good biological compatibility. In this work, Plasma Electrolytic Oxidation (PEO) (using direct current-DC) was applied in conventional mode and Two-Step PEO aiming to produce a porous coating containing HA. It was not possible to produce a satisfactory coating applying conventional PEO due to successive spalling during the oxidation process. Adding a pretreatment to the conventional PEO changed the process to Two -Step PEO allowing to form a porous coating containing HA. The pretreatment was made by PEO using phosphoric electrolyte to produce a pre-coating. After that, the pre-coating was re-oxidized with calcium/phosphorus electrolyte. The Two -Step oxidized surface presented well-known good characteristics to applications in osseous implant devices such as porous formation, roughness in the micrometrical range, surface containing calcium and phosphorus, bioactive crystalline titanium oxide, and well adhered HA formation. However, the coating morphology and chemical composition of pre-coating and Two Step oxidized surfaces were not uniform. The non-uniformity of the Two -Step oxidized surface follows a similar non-uniformity pattern of the pre-coating surface. Two distinct morphologies were identified on the Two-Step oxidized surface: a velvety morphology with HA formation and a highly porous morphology. Regarding the Ti-25Nb-25Ta alloy, the Two-Step oxidation produced an adhered coating with porous apatite distribution interspersed with calcium-rich porous oxide.
publishDate 2020
dc.date.none.fl_str_mv 2020-12-10T19:47:51Z
2020-12-10T19:47:51Z
2020-01-25
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://dx.doi.org/10.1016/j.surfcoat.2019.125224
Surface & Coatings Technology. Lausanne: Elsevier Science Sa, v. 382, 8 p., 2020.
0257-8972
http://hdl.handle.net/11449/196528
10.1016/j.surfcoat.2019.125224
WOS:000509631200015
url http://dx.doi.org/10.1016/j.surfcoat.2019.125224
http://hdl.handle.net/11449/196528
identifier_str_mv Surface & Coatings Technology. Lausanne: Elsevier Science Sa, v. 382, 8 p., 2020.
0257-8972
10.1016/j.surfcoat.2019.125224
WOS:000509631200015
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Surface & Coatings Technology
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 8
dc.publisher.none.fl_str_mv Elsevier B.V.
publisher.none.fl_str_mv Elsevier B.V.
dc.source.none.fl_str_mv Web of Science
reponame:Repositório Institucional da UNESP
instname:Universidade Estadual Paulista (UNESP)
instacron:UNESP
instname_str Universidade Estadual Paulista (UNESP)
instacron_str UNESP
institution UNESP
reponame_str Repositório Institucional da UNESP
collection Repositório Institucional da UNESP
repository.name.fl_str_mv Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)
repository.mail.fl_str_mv
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