Modification of the titanium oxide morphology and composition by a combined chemical-electrochemical treatment on cp Ti
Autor(a) principal: | |
---|---|
Data de Publicação: | 2012 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Materials research (São Carlos. Online) |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392012000100022 |
Resumo: | A combined chemical-electrochemical oxidation method to obtain porous bioactive TiO2 films on titanium is reported. In this case, a titanium chemical pre-etching followed by the micro-arc oxidation (MAO) treatment is proposed and optimized, to obtain a high-roughness and porous surface which benefits the titanium/bone integration. The MAO treatment at various rates (different current densities) allowed to define the influence of the oxide growth rate on the surface morphology and to design the best features for each case. Titanium samples were pre-etched using a 2% HF solution as a function of the etching time, and then anodized by the MAO treatment in a 0.5 M H3PO4 solution at current densities in the 10 to 90 mA.cm-2 range. High porosity (0.5 to 1 µm-diameter pores) and higher phosphorous content for TiO2 films were achieved by first etching the Ti sample for 180 seconds in the HF solution, and then applying current densities in the 80 to 90 mA.cm-2 range for the micro-arc oxidation process. |
id |
ABMABCABPOL-1_30f3cde42183396993a0c770d7b195c0 |
---|---|
oai_identifier_str |
oai:scielo:S1516-14392012000100022 |
network_acronym_str |
ABMABCABPOL-1 |
network_name_str |
Materials research (São Carlos. Online) |
repository_id_str |
|
spelling |
Modification of the titanium oxide morphology and composition by a combined chemical-electrochemical treatment on cp Tititanium anodizationanodic oxide filmsmicro-arc oxidationporous titanium oxidetitanium oxide roughnessA combined chemical-electrochemical oxidation method to obtain porous bioactive TiO2 films on titanium is reported. In this case, a titanium chemical pre-etching followed by the micro-arc oxidation (MAO) treatment is proposed and optimized, to obtain a high-roughness and porous surface which benefits the titanium/bone integration. The MAO treatment at various rates (different current densities) allowed to define the influence of the oxide growth rate on the surface morphology and to design the best features for each case. Titanium samples were pre-etched using a 2% HF solution as a function of the etching time, and then anodized by the MAO treatment in a 0.5 M H3PO4 solution at current densities in the 10 to 90 mA.cm-2 range. High porosity (0.5 to 1 µm-diameter pores) and higher phosphorous content for TiO2 films were achieved by first etching the Ti sample for 180 seconds in the HF solution, and then applying current densities in the 80 to 90 mA.cm-2 range for the micro-arc oxidation process.ABM, ABC, ABPol2012-02-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392012000100022Materials Research v.15 n.1 2012reponame:Materials research (São Carlos. Online)instname:Universidade Federal de São Carlos (UFSCAR)instacron:ABM ABC ABPOL10.1590/S1516-14392012005000002info:eu-repo/semantics/openAccessPeláez-Abellán,ErnestoDuarte,Laís TerezaBiaggio,Sonia ReginaRocha-Filho,Romeu CardozoBocchi,Nerilsoeng2012-02-23T00:00:00Zoai:scielo:S1516-14392012000100022Revistahttp://www.scielo.br/mrPUBhttps://old.scielo.br/oai/scielo-oai.phpdedz@power.ufscar.br1980-53731516-1439opendoar:2012-02-23T00:00Materials research (São Carlos. Online) - Universidade Federal de São Carlos (UFSCAR)false |
dc.title.none.fl_str_mv |
Modification of the titanium oxide morphology and composition by a combined chemical-electrochemical treatment on cp Ti |
title |
Modification of the titanium oxide morphology and composition by a combined chemical-electrochemical treatment on cp Ti |
spellingShingle |
Modification of the titanium oxide morphology and composition by a combined chemical-electrochemical treatment on cp Ti Peláez-Abellán,Ernesto titanium anodization anodic oxide films micro-arc oxidation porous titanium oxide titanium oxide roughness |
title_short |
Modification of the titanium oxide morphology and composition by a combined chemical-electrochemical treatment on cp Ti |
title_full |
Modification of the titanium oxide morphology and composition by a combined chemical-electrochemical treatment on cp Ti |
title_fullStr |
Modification of the titanium oxide morphology and composition by a combined chemical-electrochemical treatment on cp Ti |
title_full_unstemmed |
Modification of the titanium oxide morphology and composition by a combined chemical-electrochemical treatment on cp Ti |
title_sort |
Modification of the titanium oxide morphology and composition by a combined chemical-electrochemical treatment on cp Ti |
author |
Peláez-Abellán,Ernesto |
author_facet |
Peláez-Abellán,Ernesto Duarte,Laís Tereza Biaggio,Sonia Regina Rocha-Filho,Romeu Cardozo Bocchi,Nerilso |
author_role |
author |
author2 |
Duarte,Laís Tereza Biaggio,Sonia Regina Rocha-Filho,Romeu Cardozo Bocchi,Nerilso |
author2_role |
author author author author |
dc.contributor.author.fl_str_mv |
Peláez-Abellán,Ernesto Duarte,Laís Tereza Biaggio,Sonia Regina Rocha-Filho,Romeu Cardozo Bocchi,Nerilso |
dc.subject.por.fl_str_mv |
titanium anodization anodic oxide films micro-arc oxidation porous titanium oxide titanium oxide roughness |
topic |
titanium anodization anodic oxide films micro-arc oxidation porous titanium oxide titanium oxide roughness |
description |
A combined chemical-electrochemical oxidation method to obtain porous bioactive TiO2 films on titanium is reported. In this case, a titanium chemical pre-etching followed by the micro-arc oxidation (MAO) treatment is proposed and optimized, to obtain a high-roughness and porous surface which benefits the titanium/bone integration. The MAO treatment at various rates (different current densities) allowed to define the influence of the oxide growth rate on the surface morphology and to design the best features for each case. Titanium samples were pre-etched using a 2% HF solution as a function of the etching time, and then anodized by the MAO treatment in a 0.5 M H3PO4 solution at current densities in the 10 to 90 mA.cm-2 range. High porosity (0.5 to 1 µm-diameter pores) and higher phosphorous content for TiO2 films were achieved by first etching the Ti sample for 180 seconds in the HF solution, and then applying current densities in the 80 to 90 mA.cm-2 range for the micro-arc oxidation process. |
publishDate |
2012 |
dc.date.none.fl_str_mv |
2012-02-01 |
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=S1516-14392012000100022 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392012000100022 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/S1516-14392012005000002 |
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 |
ABM, ABC, ABPol |
publisher.none.fl_str_mv |
ABM, ABC, ABPol |
dc.source.none.fl_str_mv |
Materials Research v.15 n.1 2012 reponame:Materials research (São Carlos. Online) instname:Universidade Federal de São Carlos (UFSCAR) instacron:ABM ABC ABPOL |
instname_str |
Universidade Federal de São Carlos (UFSCAR) |
instacron_str |
ABM ABC ABPOL |
institution |
ABM ABC ABPOL |
reponame_str |
Materials research (São Carlos. Online) |
collection |
Materials research (São Carlos. Online) |
repository.name.fl_str_mv |
Materials research (São Carlos. Online) - Universidade Federal de São Carlos (UFSCAR) |
repository.mail.fl_str_mv |
dedz@power.ufscar.br |
_version_ |
1754212661238693888 |