Structural Changes in TiO sub(2) Films Formed by Anodizing of Electro-Polished Titanium

Anodizing is a surface modification technique that is applied to growing oxide films on Ti to accelerate the osseointegration of an implant. Besides the surface roughness, the crystalline structure of these films can affect its performance as a biomaterial. For this reason, this technique has been r...

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Published inMaterials Science Forum Vol. 869; pp. 689 - 692
Main Authors Diaz, Patricia Lopez, Pereira, Marinalda Claudete, Codaro, Eduardo Norberto, Acciari, Heloisa Andrea
Format Journal Article
LanguageEnglish
Published 01.08.2016
Subjects
Anodizing
Crystal structure
Direct current
Materials science
Optical microscopy
Surgical implants
Titanium
Titanium dioxide
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Summary:Anodizing is a surface modification technique that is applied to growing oxide films on Ti to accelerate the osseointegration of an implant. Besides the surface roughness, the crystalline structure of these films can affect its performance as a biomaterial. For this reason, this technique has been refined to produce crystalline films without requiring heat treatments. For this purpose, TiO sub(2) films were grown on Ti (grade 2) by anodizing with direct current at different potentials. Images obtained by optical microscopy with polarized light revealed a granular microstructure in various colors, as consequence of different crystalline orientations of the grains and films thickness. Raman spectroscopy showed that the films crystallinity is affected by variations in the applied potential and anodizing time.
Bibliography:ObjectType-Article-1
SourceType-Scholarly Journals-1
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ISBN:9783038355328
3038355321
ISSN:0255-5476
1662-9752
DOI:10.4028/www.scientific.net/MSF.869.689