Influence of electrical parameters on morphology of nanostructured TiO2 layers developed by electrochemical anodization

Ti6Al4V alloy micro rough surfaces with TiO2 self-organized nanostructured layers were synthesized using electrochemical anodization in phosphate/fluoride electrolyte, at different end potentials (5V, 10V, 15V, and 20 V). The current – time characteristics were recorded, and the link between current...

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Bibliographic Details
Published inMATEC Web of Conferences Vol. 112; p. 04021
Main Authors Strnad, Gabriela, German-Sallo, Zoltan, Jakab-Farkas, Laszlo, Petrovan, Cecilia, Portan, Diana
Format Conference Proceeding Journal Article
LanguageEnglish
Published Les Ulis EDP Sciences 01.01.2017
Subjects
Anodizing
Biocompatibility
Biomedical materials
Flat surfaces
Morphology
Nanostructure
Porosity
Process parameters
Surgical implants
Titanium base alloys
Titanium dioxide
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Summary:Ti6Al4V alloy micro rough surfaces with TiO2 self-organized nanostructured layers were synthesized using electrochemical anodization in phosphate/fluoride electrolyte, at different end potentials (5V, 10V, 15V, and 20 V). The current – time characteristics were recorded, and the link between current evolution and the morphology of developing oxide layers was investigated. On flat surfaces of Ti6Al4V alloy we developed TiO2 layers with different morphologies (random pores, nanopores of 25…50 nm, and highly organized nanotubes of 50…100 nm in diameter) depending on electrical parameters of anodization process. In our anodization cell, in optimized conditions, we are able to superimpose nanostructured oxide layers (nanotubular or nanoporous) over micro structured surfaces of titanium based materials used for biomedical implants.
ISSN:2274-7214
2261-236X
DOI:10.1051/matecconf/201711204021