Investigations of sintering temperature and cell viability of biocompatible nano Yttria stabilised zirconia coated on 316L SS for dental applications

Abstract

Development of biocompatible dental implants has become significant impact in dental industry. In the present work, we report for the development of biocompatible nano Yttria stabilised Zirconia (YSZ) coatings on 316L stainless steel (316L SS) obtained by EPD process. The optimized sample (nano YSZ coating on 316 obtained at applied potential of 70 V for 5 minutes) were sintered in air at 600, 800 and 900°C. The surface morphology and composition of the coatings were characterized by XRD and FE-SEM with EDAX. The electrochemical performance of the uncoated metal and nano YSZ coated 316L SS samples were evaluated in artificial saliva (AS) medium using electrochemical techniques such as Open Circuit Potential – time measurement (OCP), Electrochemical Impedance Spectroscopy (EIS) and Cyclic Potentiodynamic Polarization (CPP).