Published Paper Details:

Magnesium (Mg) and its alloy are potential material for biodegradable implants which makes promising due its mechanical properties. However, corrosion of these metals alloys is too quickly results in losing mechanical integrity. The problem had risen in scientific committee to solve/reduce the corrosion rate and enhance the biocompatibility of the Mg-alloy. In order to reduce the corrosion, surface was modified with the hydroxyapatite (HAp) coating. The synthesis of HAp on Mg-alloy substrate was carried out by an electrodeposition method i.e., chemical deposition. The post treatment of deposited HAp on Mg-alloy with alkali solution which results in electrodeposited calcium hydrogenphosphate coatings into the bone-like hydroxyapatite coatings. Cyclic voltammetry and electrochemical impedance spectroscopy was studied to determine the barrier properties of the HAp coatings. Polarization test in a Hanks' solution was investigated to sense the protectiveness of the coatings, which is critical for better in-service mechanical integrity. The existence of the HAp coating and its morphology on Mg-alloy was verified using Fourier transform infrared spectroscopy (FTIR)