THE EFFECT OF ATOMIC LAYER DEPOSITION OF ZrO2 ON THE PHYSICOCHEMICAL PROPERTIES OF COBALT BASED ALLOYS INTENDED FOR PROSTHETIC DENTISTRY.

The paper presents the effect of ZrO₂ layer deposition by the ALD process on the physicochemical properties of cobalt-based alloys (Realloy C and EOS CoCr SP2) intended for application in prosthetic dentistry. The paper shows the results of the surface roughness measurements made by the AFM method as well as the wettability and free surface energy measurements. Additionally, potentiodynamic tests of pitting corrosion resistance and electrochemical impedance spectroscopy in a solution of artificial saliva were carried out. Tests were carried out on the samples in the initial state and after surface modification with the ZrO₂ layer. Based on these results, the usefulness (e.g. enhancement of corrosion resistance and biocompatibility) of the proposed ZrO₂ layer on the cobalt alloys was assessed. [ABSTRACT FROM AUTHOR]