Corrosion Behavior of Amalgam/Cockles Shells Composites in Artificial Saliva

Metal matrix composites have been prepared by adding cockles’ shells CS powder to dental amalgam with three weight percents 14.2, 28.5 and 42.8 wt% as an attempt to improve the corrosion behavior of the final product. The corrosion behavior of the doped amalgam samples investigated using polarization measurements. The results indicate that addition of small amount of cockles shell CS powder improves the corrosion behavior due to a homogeneous distribution of the powder particles with metallic powders.