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Cathodic alkaline treatment of zirconium to give the ability to form calcium phosphate

Paper ID Volume ID Publish Year Pages File Format Full-Text
1208 78 2010 6 PDF Available
Title
Cathodic alkaline treatment of zirconium to give the ability to form calcium phosphate
Abstract

The cathodic polarization technique to form an alkaline environment on a zirconium (Zr) surface, discussed in the present study, is unique, and gives the ability to form calcium phosphate in a simulated body fluid to Zr; on the other hand, many previous studies have been conducted using immersion in alkaline solutions. In this study, two discrete techniques were investigated. Zr was cathodically polarized in an electrolyte without calcium and phosphate ions, and Zr was cathodically polarized in another electrolyte containing calcium and phosphate ions, Hanks’ solution, to directly form a calcium phosphate layer. The surface was characterized using X-ray photoelectron spectroscopy, and the performance of the material was evaluated by immersion in Hanks’ solution. As a result, the ability to form calcium phosphate in Hanks’ solution was given by cathodic polarization in the Na2SO4 solution containing H2O2. In addition, a cathodic potential under −1.5 VSCE is required to form hydroxyapatite directly in Hanks’ solution. This research clearly reveals useful surface modification techniques giving the ability to form calcium phosphate in a simulated body fluid by cathodic polarization.

Keywords
Zirconium; Calcium phosphate; Cathodic polarization; X-ray photoelectron spectroscopy; Hydroxyapatite
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Publisher
Database: Elsevier - ScienceDirect
Journal: Acta Biomaterialia - Volume 6, Issue 10, October 2010, Pages 4161–4166
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