Abstract
Bioactive calcium phosphate (Ca-P) coated titanium is the most promising bone replacement materials. The pulsed electrochemical deposition method was employed to deposit CaP/gelatin composite coatings on titanium substrates. The main purpose of the study is to explore the optimum processing parameters of the composite coating. Electrolyte was made from the mixture of the Ca-P and gelatin aqueous solution with different concentrations. SEM, XRD and FTIR were used to characterize the composition and morphology of the coating. The coatings prepared under constant voltage and pulse voltage electrodeposition were compared and it was found that the pulse voltage mode was more suitable for preparing CaP/gelatin coatings. The optimized experimental conditions were as follows, pulse voltage range of 0 to1.3V, the Ca 2+ concentration of 5.0×10 4 mol/L; gelatin concentration of 0.5g/L, pH
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