Influence of the electrolyte concentration on the smooth TiO2 anodic coatings on Ti-6Al-4V

Fil: Vera, María Laura. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico (Nordeste). Instituto de Materiales de Misiones; Argentina.

Detalles Bibliográficos
Autores principales: Vera, María Laura, Colaccio, Ángeles, Rosenberger, Mario Roberto, Schvezov, Carlos Enrique, Ares, Alicia Esther
Formato: Artículo publishedVersion
Lenguaje:Inglés
Publicado: MDPI 2017
Materias:
Anodic oxidation
Titanium dioxide
Electrolyte concentration
Sulfuric acid
Acceso en línea:https://hdl.handle.net/20.500.12219/4429
Aporte de:
Repositorio Institucional Digital de la UNaM (RIDUNAM) de Universidad Nacional de Misiones
id I77-R195-20.500.12219-4429
record_format dspace
spelling I77-R195-20.500.12219-44292024-06-04T11:14:15Z Influence of the electrolyte concentration on the smooth TiO2 anodic coatings on Ti-6Al-4V Vera, María Laura Colaccio, Ángeles Rosenberger, Mario Roberto Schvezov, Carlos Enrique Ares, Alicia Esther Anodic oxidation Titanium dioxide Electrolyte concentration Sulfuric acid Fil: Vera, María Laura. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico (Nordeste). Instituto de Materiales de Misiones; Argentina. Fil: Vera, María Laura. Universidad Nacional de Misiones. Facultad de Ciencias Exactas, Químicas y Naturales. Instituto de Materiales de Misiones; Argentina. Fil: Colaccio, Ángeles. Universidad Nacional de Misiones. Facultad de Ciencias Exactas, Químicas y Naturales; Argentina. Fil: Rosenberger, Mario Roberto. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico (Nordeste). Instituto de Materiales de Misiones; Argentina. Fil: Rosenberger, Mario Roberto. Universidad Nacional de Misiones. Facultad de Ciencias Exactas, Químicas y Naturales. Instituto de Materiales de Misiones; Argentina. Fil: Schvezov, Carlos Enrique. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico (Nordeste). Instituto de Materiales de Misiones; Argentina. Fil: Schvezov, Carlos Enrique. Universidad Nacional de Misiones. Facultad de Ciencias Exactas, Químicas y Naturales. Instituto de Materiales de Misiones; Argentina. Fil: Ares, Alicia Esther. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico (Nordeste). Instituto de Materiales de Misiones; Argentina. Fil: Ares, Alicia Esther. Universidad Nacional de Misiones. Facultad de Ciencias Exactas, Químicas y Naturales. Instituto de Materiales de Misiones; Argentina. To obtain smooth TiO2 coatings for building a new design of Ti-6Al-4V heart valve, the anodic oxidation technique in pre-spark conditions was evaluated. TiO2 coating is necessary for its recognized biocompatibility and corrosion resistance. A required feature on surfaces in contact with blood is a low level of roughness (Ra ≤ 50 nm) that does not favor the formation of blood clots. The present paper compares the coatings obtained by anodic oxidation of the Ti-6Al-4V alloy using H2SO4 at different concentrations (0.1?4 M) as electrolyte and applying different voltages (from 20 to 70 V). Color and morphological analysis of coatings are performed using optical and scanning microscopy. The crystalline phases were analyzed by glancing X-ray diffraction. By varying the applied voltage, different interference colors coatings were obtained. The differences in morphologies of the coatings caused by changes in acid concentration are more evident at high voltages, limiting the oxidation conditions for the desired application. Anatase phase was detected from 70 V for 1 M H2SO4. An increase in the concentration of H2SO4 decreases the voltage at which the transformation of amorphous to crystalline coatings occurs; i.e., with 4 M H2SO4, the anatase phase appears at 60 V. 2017-03-03 info:eu-repo/semantics/article info:ar-repo/semantics/artículo info:eu-repo/semantics/publishedVersion https://hdl.handle.net/20.500.12219/4429 eng info:eu-repo/semantics/altIdentifier/urn/https://www.mdpi.com/2079-6412/7/3/39 info:eu-repo/semantics/openAccess application/pdf application/pdf 3.264 MB MDPI
institution Universidad Nacional de Misiones
institution_str I-77
repository_str R-195
collection Repositorio Institucional Digital de la UNaM (RIDUNAM)
language Inglés
topic Anodic oxidation
Titanium dioxide
Electrolyte concentration
Sulfuric acid
spellingShingle Anodic oxidation
Titanium dioxide
Electrolyte concentration
Sulfuric acid
Vera, María Laura
Colaccio, Ángeles
Rosenberger, Mario Roberto
Schvezov, Carlos Enrique
Ares, Alicia Esther
Influence of the electrolyte concentration on the smooth TiO2 anodic coatings on Ti-6Al-4V
topic_facet Anodic oxidation
Titanium dioxide
Electrolyte concentration
Sulfuric acid
description Fil: Vera, María Laura. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico (Nordeste). Instituto de Materiales de Misiones; Argentina.
format Artículo
Artículo
publishedVersion
author Vera, María Laura
Colaccio, Ángeles
Rosenberger, Mario Roberto
Schvezov, Carlos Enrique
Ares, Alicia Esther
author_facet Vera, María Laura
Colaccio, Ángeles
Rosenberger, Mario Roberto
Schvezov, Carlos Enrique
Ares, Alicia Esther
author_sort Vera, María Laura
title Influence of the electrolyte concentration on the smooth TiO2 anodic coatings on Ti-6Al-4V
title_short Influence of the electrolyte concentration on the smooth TiO2 anodic coatings on Ti-6Al-4V
title_full Influence of the electrolyte concentration on the smooth TiO2 anodic coatings on Ti-6Al-4V
title_fullStr Influence of the electrolyte concentration on the smooth TiO2 anodic coatings on Ti-6Al-4V
title_full_unstemmed Influence of the electrolyte concentration on the smooth TiO2 anodic coatings on Ti-6Al-4V
title_sort influence of the electrolyte concentration on the smooth tio2 anodic coatings on ti-6al-4v
publisher MDPI
publishDate 2017
url https://hdl.handle.net/20.500.12219/4429
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AT rosenbergermarioroberto influenceoftheelectrolyteconcentrationonthesmoothtio2anodiccoatingsonti6al4v
AT schvezovcarlosenrique influenceoftheelectrolyteconcentrationonthesmoothtio2anodiccoatingsonti6al4v
AT aresaliciaesther influenceoftheelectrolyteconcentrationonthesmoothtio2anodiccoatingsonti6al4v
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