Novel electrodeposition process for preparinghydroxyapatite coating on titanium substrate

【Abstract】 A novel process for electrodeposition of hydroxyapatite coating on titanium substrate was developed. The mechanism of the electrochemical reaction on the cathode was changed by adding H₂O₂ into the electrolyte. The evolution of H₂ gas was erased. And owing to the fact that H₂O₂ posesses high tendency of being reduced, a fairly high cathodic current can be gained at a more positive potential than -1.0V. During the electrodeposition, 6%H₂O₂ is added, the temperature of deposition is fixed at 55℃ and pH of electrolyte is adjusted to 5.5. Dense and homogeneous film is crystallized at high rate. The mechanism of crystallize process was discussed.更多还原