Effect of Hydroxyapatite layer Coating on Corrosion Behavior for Ti-20%Co alloy.

Abstract


Abstract :Electrochemical corrosion of Ti-20%Co alloy coated with hydroxyapatite (HAP) performance depends on various parameters like applied potential, time, thickness and sintering temperature thus, the optimum parameters required for development of stable HAP coating was found by using electrophortic deposition (EPD) technique. This study discusses the result obtained from XRD and potentiodynamic polarisation, the measured corrosion potential in the synthetic blood plasma for the HAP coated specimens are more noble than the uncoated specimens. The specimen coated for (3) minutes was found to be the best corrosion resistance in comparison with the un coated specimens.