Paper Title:
Influence of Applied Voltage on the Structure of Micro-Plasma Oxidized Titania-Based Coatings Formed in an Electrolyte Containing Nano-HA and Calcium Salts and Phosphate
  Abstract

In this work, porous titania-based coatings containing Ca and P ions were prepared on titanium alloy by micro-plasma oxidation (MPO) in an electrolyte containing nano-HA, calcium salts and phosphate under various applied voltages (200~450 V). The results showed that the MPO coatings formed at 250-450 V were composed of anatase and amorphous phase. With increasing applied voltage, the micropore size and thickness of the MPO coatings increase, while the micropore number decreases. Furthermore, the Ca and P concentrations, as well as atomic ratio of Ca/P are highly dependent on the applied voltage. In addition, the cross-sectional view results showed good adhesion between the MPO coatings and titanium alloy substrate at various applied voltages. In vitro experiments indicated that the MPO coating can induce apatite formation.

  Info
Periodical
Key Engineering Materials (Volumes 368-372)
Edited by
Wei Pan and Jianghong Gong
Pages
1209-1211
DOI
10.4028/www.scientific.net/KEM.368-372.1209
Citation
D. Q. Wei, Y. Zhou, D. C. Jia, Y. M. Wang, "Influence of Applied Voltage on the Structure of Micro-Plasma Oxidized Titania-Based Coatings Formed in an Electrolyte Containing Nano-HA and Calcium Salts and Phosphate", Key Engineering Materials, Vols. 368-372, pp. 1209-1211, 2008
Online since
February 2008
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$32.00
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