Treatments for enhancing calcium and phosphorus on titanium oxide formed by micro-arc oxidation
Journal
ECS Transactions
Journal Volume
6
Journal Issue
15
Pages
35-43
Date Issued
2007
Author(s)
Abstract
Anodic oxidation of titanium in the solution containing calcium (Ca) and phosphorus (P) compounds can prepare a Ca- and P-containing oxide film. However, during the galvanostatic anodizing process, both the porous inner layer formed prior to sparks and the crater-containing overlay formed with sparks resulted in decreasing the adhesion of the anodic film. Higher anodizing voltage can enhance the contents of Ca and P in the anodic film, yet leads to the adhesion decrease problem. Simulated body fluid (SBF) immersion after anodic oxidation in this study was reported to be able to increase the contents of Ca and P in the anodic film, and alkali- and heat-treatment (AHT) before SBF immersion further accelerated the reactions in SBF. Both the chemical and physical properties of the layer on the titanium specimen were optimized via these treatments above.
SDGs
Type
conference paper