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In vitro behavior of silicate glass coatings on Ti6Al4V

Paper ID Volume ID Publish Year Pages File Format Full-Text
13316 849 2002 8 PDF Available
Title
In vitro behavior of silicate glass coatings on Ti6Al4V
Abstract

The in vitro response in simulated body fluid (SBF) of silicate glass coatings on Ti6Al4V was evaluated. Glasses belonging to the SiO2–CaO–MgO–Na2O–K2O–P2O5 system were used to prepare 50–70 μm thick coatings on Ti6Al4V, employing a simple enameling technique. Glasses with silica content higher than 55 wt% can be used to prepare coatings that do not crack or delaminate and exhibit good adhesion to the alloy. It has been found that coatings with silica content lower than 60 wt% are more susceptible to corrosion and precipitate carbonated hydroxyapatite on their surface during in vitro tests. However, these coatings have a higher thermal expansion than the metal and are under tension. After 2 months in SBF cracks grow in the coating that reach the glass/metal interface and initiate delamination. Glasses with silica content higher than 60 wt% are more resistant to corrosion and have lower thermal expansion. These coatings do not crack but they do not precipitate apatite even after 2 months in SBF.

Keywords
Coatings; Glass; Ti6Al4V; Hydroxyapatite; In vitro
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In vitro behavior of silicate glass coatings on Ti6Al4V
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Publisher
Database: Elsevier - ScienceDirect
Journal: Biomaterials - Volume 23, Issue 17, September 2002, Pages 3749–3756
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us