Influence of HAP on the Morpho-Structural Properties and Corrosion Resistance of ZrO2-Based Composites for Biomedical Applications

In the present work, ZrO2-based composites were prepared by adding different amounts of antibacterial magnesium oxide and bioactive biocompatible hydroxyapatite (HAP) to inert zirconia. The synthesized conventional ceramic processing route morpho-structurally analyzed X-ray powder diffraction (XRPD) scanning electron microscopy/energy dispersive spectroscopy (SEM/EDS). Two metallic dental alloys (i.e., Ni–Cr Co–Cr) coated with a chitosan (Chit) membrane containing exposed aerated artificial saliva solutions pHs 4.3, 5, 6) corrosion resistances investigated electrochemical impedance technique. obtained results using two shown quasi-similar anticorrosive properties, having charge transfer resistance, when composites. This behavior could be explained synergetic effect between diffusion process through Chit-composite layer roughness electrode surface.