Estudo do biomaterial Ti-6Al-4V empregando-se técnicas eletroquímicas e XPS

Detalhes bibliográficos
Autor(a) principal: Ramires,Ivan
Data de Publicação: 2002
Outros Autores: Guastaldi,Antonio Carlos
Tipo de documento: Artigo
Idioma: por
Título da fonte: Química Nova (Online)
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422002000100003
Resumo: The Ti-6Al-4V alloy used as biomaterial has been used over the last years. The literature shows controversies concerning the kind and the chemical composition of the film naturally and elctrochemically formed on the surface of the titanium alloy. The presente work studies the film composition before and after the electrochemical polarization tests using the x Ray photoelectron spectroscopy (XPS) technique. The results showed that the film naturally formed on the metallic surface is constituted of a variety of oxides which do not cover the whole surface of the metallic alloy and therefore, metallic Ti, Al and V can be found on the uncovered areas. The tests of XPS made after the polarization up to 4V (SCE) showed that the electrochemically formed film is constituted only of TiO2 and that the peak current observed around 1,5 V (SCE) is due to the oxidation of any kind of titanium oxide or the growth of the film.
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spelling Estudo do biomaterial Ti-6Al-4V empregando-se técnicas eletroquímicas e XPStitaniumcorrosionXPSTiO2The Ti-6Al-4V alloy used as biomaterial has been used over the last years. The literature shows controversies concerning the kind and the chemical composition of the film naturally and elctrochemically formed on the surface of the titanium alloy. The presente work studies the film composition before and after the electrochemical polarization tests using the x Ray photoelectron spectroscopy (XPS) technique. The results showed that the film naturally formed on the metallic surface is constituted of a variety of oxides which do not cover the whole surface of the metallic alloy and therefore, metallic Ti, Al and V can be found on the uncovered areas. The tests of XPS made after the polarization up to 4V (SCE) showed that the electrochemically formed film is constituted only of TiO2 and that the peak current observed around 1,5 V (SCE) is due to the oxidation of any kind of titanium oxide or the growth of the film.Sociedade Brasileira de Química2002-02-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422002000100003Química Nova v.25 n.1 2002reponame:Química Nova (Online)instname:Sociedade Brasileira de Química (SBQ)instacron:SBQ10.1590/S0100-40422002000100003info:eu-repo/semantics/openAccessRamires,IvanGuastaldi,Antonio Carlospor2002-07-31T00:00:00Zoai:scielo:S0100-40422002000100003Revistahttps://www.scielo.br/j/qn/ONGhttps://old.scielo.br/oai/scielo-oai.phpquimicanova@sbq.org.br1678-70640100-4042opendoar:2002-07-31T00:00Química Nova (Online) - Sociedade Brasileira de Química (SBQ)false
dc.title.none.fl_str_mv Estudo do biomaterial Ti-6Al-4V empregando-se técnicas eletroquímicas e XPS
title Estudo do biomaterial Ti-6Al-4V empregando-se técnicas eletroquímicas e XPS
spellingShingle Estudo do biomaterial Ti-6Al-4V empregando-se técnicas eletroquímicas e XPS
Ramires,Ivan
titanium
corrosion
XPS
TiO2
title_short Estudo do biomaterial Ti-6Al-4V empregando-se técnicas eletroquímicas e XPS
title_full Estudo do biomaterial Ti-6Al-4V empregando-se técnicas eletroquímicas e XPS
title_fullStr Estudo do biomaterial Ti-6Al-4V empregando-se técnicas eletroquímicas e XPS
title_full_unstemmed Estudo do biomaterial Ti-6Al-4V empregando-se técnicas eletroquímicas e XPS
title_sort Estudo do biomaterial Ti-6Al-4V empregando-se técnicas eletroquímicas e XPS
author Ramires,Ivan
author_facet Ramires,Ivan
Guastaldi,Antonio Carlos
author_role author
author2 Guastaldi,Antonio Carlos
author2_role author
dc.contributor.author.fl_str_mv Ramires,Ivan
Guastaldi,Antonio Carlos
dc.subject.por.fl_str_mv titanium
corrosion
XPS
TiO2
topic titanium
corrosion
XPS
TiO2
description The Ti-6Al-4V alloy used as biomaterial has been used over the last years. The literature shows controversies concerning the kind and the chemical composition of the film naturally and elctrochemically formed on the surface of the titanium alloy. The presente work studies the film composition before and after the electrochemical polarization tests using the x Ray photoelectron spectroscopy (XPS) technique. The results showed that the film naturally formed on the metallic surface is constituted of a variety of oxides which do not cover the whole surface of the metallic alloy and therefore, metallic Ti, Al and V can be found on the uncovered areas. The tests of XPS made after the polarization up to 4V (SCE) showed that the electrochemically formed film is constituted only of TiO2 and that the peak current observed around 1,5 V (SCE) is due to the oxidation of any kind of titanium oxide or the growth of the film.
publishDate 2002
dc.date.none.fl_str_mv 2002-02-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422002000100003
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422002000100003
dc.language.iso.fl_str_mv por
language por
dc.relation.none.fl_str_mv 10.1590/S0100-40422002000100003
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv text/html
dc.publisher.none.fl_str_mv Sociedade Brasileira de Química
publisher.none.fl_str_mv Sociedade Brasileira de Química
dc.source.none.fl_str_mv Química Nova v.25 n.1 2002
reponame:Química Nova (Online)
instname:Sociedade Brasileira de Química (SBQ)
instacron:SBQ
instname_str Sociedade Brasileira de Química (SBQ)
instacron_str SBQ
institution SBQ
reponame_str Química Nova (Online)
collection Química Nova (Online)
repository.name.fl_str_mv Química Nova (Online) - Sociedade Brasileira de Química (SBQ)
repository.mail.fl_str_mv quimicanova@sbq.org.br
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