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Materials Characterization
Article . 2011 . Peer-reviewed
License: Elsevier TDM
Data sources: Crossref
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Micro-arc oxidation of Ti6Al4V and Ti6Al7Nb alloys for biomedical applications

Authors: Cimenoglu, Huseyin; Gunyuz, Mert; Kose, Gamze Torun; Baydogan, Murat; Ugurlu, Faysal; Sener, Cem;

Micro-arc oxidation of Ti6Al4V and Ti6Al7Nb alloys for biomedical applications

Abstract

Abstract In the present study, the in-vitro biological responses of two competitive titanium alloys (Ti6Al4V and Ti6Al7Nb) were investigated after modifying their surfaces by the micro-arc oxidation (MAO) process conducted in a (CH3COO)2Ca·H2O and Na3PO4 containing electrolyte under identical electrical parameters and exposure time. After the process, the surfaces of the alloys were covered with a thick (approx. 10 μm) TiO2 layer exhibiting different characteristics. The oxide layer of the Ti6Al4V alloy was porous and contained hydroxyapatite precipitates whereas the oxide layer of the Ti6Al7Nb alloy showed a more grainy appearance and contained calcium titanate precipitates. Simulated body fluid (SBF) and cell culture tests were conducted to compare the biological performance of the alloys. Even though oxidized alloys exhibited somewhat similar response in SBF tests, the number of SAOS-2 cells attached to the oxide layer of the Ti6Al4V alloy was greater than that of the Ti6Al7Nb alloy.

Country
Turkey
Keywords

Titanium, Micro-arc oxidation, CA, BIOACTIVITY, Ti6Al7Nb, CALCIUM-PHOSPHATE COATINGS, Ti6Al4V, FILMS, CELLS, TITANIUM-ALLOYS, Biocompatibility

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
115
Top 1%
Top 10%
Top 10%
Green