Tribocorrosion behavior of bio-functionalized highly porous titanium

Detalhes bibliográficos
Autor(a) principal: Toptan, Fatih
Data de Publicação: 2017
Outros Autores: Alves, Alexandra Manuela Vieira Cruz Pinto, Pinto, A. M. P., Ponthiaux, P.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/1822/51245
Resumo: Titanium and its alloys are widely used in orthopedic and dental implants, however, some major clinical concerns such as poor wear resistance, lack of bioactivity, and bone resorption due to stress shielding are yet to be overcome. In order to improve these drawbacks, highly porous Ti samples having functionalized surfaces were developed by powder metallurgy with space holder technique followed by anodic treatment. Tribocorrosion tests were performed in 9 g/L NaCl solution using a unidirectional pin-on-disc tribometer under 3 N normal load, 1 Hz frequency and 4 mm track diameter. Open circuit potential (OCP) was measured before, during and after sliding. Worn surfaces investigated by field emission gun scanning electron microscope (FEG-SEM) equipped with energy dispersive X-ray spectroscopy (EDS). Results suggested bio-functionalized highly porous samples presented lower tendency to corrosion under sliding against zirconia pin, mainly due to the load carrying effect given by the hard protruded oxide surfaces formed by the anodic treatment.
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spelling Tribocorrosion behavior of bio-functionalized highly porous titaniumAnodic treatmentPowder metallurgyPorous TiTribocorrosionScience & TechnologyTitanium and its alloys are widely used in orthopedic and dental implants, however, some major clinical concerns such as poor wear resistance, lack of bioactivity, and bone resorption due to stress shielding are yet to be overcome. In order to improve these drawbacks, highly porous Ti samples having functionalized surfaces were developed by powder metallurgy with space holder technique followed by anodic treatment. Tribocorrosion tests were performed in 9 g/L NaCl solution using a unidirectional pin-on-disc tribometer under 3 N normal load, 1 Hz frequency and 4 mm track diameter. Open circuit potential (OCP) was measured before, during and after sliding. Worn surfaces investigated by field emission gun scanning electron microscope (FEG-SEM) equipped with energy dispersive X-ray spectroscopy (EDS). Results suggested bio-functionalized highly porous samples presented lower tendency to corrosion under sliding against zirconia pin, mainly due to the load carrying effect given by the hard protruded oxide surfaces formed by the anodic treatment.This study was supported by FCT with the reference project UID/EEA/04436/2013, by FEDER funds through the COMPETE 2020 - Programa Operacional Competitividade e Internacionalizacao (POCI) with the reference project POCI-01-0145-FEDER-006941, Programa de Accoes Universitarias Integradas Luso-Francesas' (PAUILF TC-12_14), and the Calouste Gulbenkian Foundation through "Programa de Mobilidade Academica para Professores". The authors also gratefully acknowledge the "Investissements d'avenir" programs (nos. ANR-11-IDEX-0003-02 and ANR-10- EQPX-37 MATMECA Grant) for financial support.info:eu-repo/semantics/publishedVersionElsevier Science BVUniversidade do MinhoToptan, FatihAlves, Alexandra Manuela Vieira Cruz PintoPinto, A. M. P.Ponthiaux, P.20172017-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/1822/51245eng1751-616110.1016/j.jmbbm.2017.01.00628073074info: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:RCAAP2023-07-21T12:24:43Zoai:repositorium.sdum.uminho.pt:1822/51245Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T19:18:48.004827Repositório 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 Tribocorrosion behavior of bio-functionalized highly porous titanium
title Tribocorrosion behavior of bio-functionalized highly porous titanium
spellingShingle Tribocorrosion behavior of bio-functionalized highly porous titanium
Toptan, Fatih
Anodic treatment
Powder metallurgy
Porous Ti
Tribocorrosion
Science & Technology
title_short Tribocorrosion behavior of bio-functionalized highly porous titanium
title_full Tribocorrosion behavior of bio-functionalized highly porous titanium
title_fullStr Tribocorrosion behavior of bio-functionalized highly porous titanium
title_full_unstemmed Tribocorrosion behavior of bio-functionalized highly porous titanium
title_sort Tribocorrosion behavior of bio-functionalized highly porous titanium
author Toptan, Fatih
author_facet Toptan, Fatih
Alves, Alexandra Manuela Vieira Cruz Pinto
Pinto, A. M. P.
Ponthiaux, P.
author_role author
author2 Alves, Alexandra Manuela Vieira Cruz Pinto
Pinto, A. M. P.
Ponthiaux, P.
author2_role author
author
author
dc.contributor.none.fl_str_mv Universidade do Minho
dc.contributor.author.fl_str_mv Toptan, Fatih
Alves, Alexandra Manuela Vieira Cruz Pinto
Pinto, A. M. P.
Ponthiaux, P.
dc.subject.por.fl_str_mv Anodic treatment
Powder metallurgy
Porous Ti
Tribocorrosion
Science & Technology
topic Anodic treatment
Powder metallurgy
Porous Ti
Tribocorrosion
Science & Technology
description Titanium and its alloys are widely used in orthopedic and dental implants, however, some major clinical concerns such as poor wear resistance, lack of bioactivity, and bone resorption due to stress shielding are yet to be overcome. In order to improve these drawbacks, highly porous Ti samples having functionalized surfaces were developed by powder metallurgy with space holder technique followed by anodic treatment. Tribocorrosion tests were performed in 9 g/L NaCl solution using a unidirectional pin-on-disc tribometer under 3 N normal load, 1 Hz frequency and 4 mm track diameter. Open circuit potential (OCP) was measured before, during and after sliding. Worn surfaces investigated by field emission gun scanning electron microscope (FEG-SEM) equipped with energy dispersive X-ray spectroscopy (EDS). Results suggested bio-functionalized highly porous samples presented lower tendency to corrosion under sliding against zirconia pin, mainly due to the load carrying effect given by the hard protruded oxide surfaces formed by the anodic treatment.
publishDate 2017
dc.date.none.fl_str_mv 2017
2017-01-01T00:00:00Z
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/1822/51245
url http://hdl.handle.net/1822/51245
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 1751-6161
10.1016/j.jmbbm.2017.01.006
28073074
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 Science BV
publisher.none.fl_str_mv Elsevier Science BV
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
instname_str Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
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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
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