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Electrochemical Deposition of Apatite on Titanium Substrates by Using Pulse Current

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Abstract:

An apatite layer was successfully formed on titanium substrates by electrochemical deposition under a pulse current in a metastable calcium phosphate solution, which had 1.5 times the ion concentrations of a normal simulated body fluid, but did not contain MgCl2·6H2O, at 40 °C for 30, 60, 90 and 120 minutes at the average current density of 10 mA/cm2. The thickness of the apatite layer was increased with increasing deposition time. The pulse-current deposition produced the thicker apatite layer than the direct-current deposition, and gave some effects on the surface morphology of the apatite. The pre-treatment using acid solution gave a better adhesive between apatite and substrate. It is expected that the present electrochemical deposition under a pulse current will be useful to rapidly coat apatite on metallic materials.

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Periodical:

Key Engineering Materials (Volumes 361-363)

Pages:

629-632

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.361-363.629

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Online since:

November 2007

Authors:

Kawashita Masakazu, Tomoyasu Hayakawa, Gikan H. Takaoka

Keywords:

Apatite, Electrochemical Deposition, Pulsed Current, Simulated Body Fluid (SBF), Titanium (Ti)

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© 2008 Trans Tech Publications Ltd. All Rights Reserved

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