Surface Morphology and Chemical Composition of Thermally Prepared (RuO2)x(Ta2O5)y/Ti Coatings

Abstract

A binary coating with the nominal composition (RuO₂)x(Ta₂O₅)y/Ti deposited on a Ti substrate has been prepared by thermal decomposition of RUCl₃._XH₂O and TaCl₅ solutions at 450°C. Surface morphology and microstructure of the coatings were investigated by scanning electrón microscopy (SEM) and energy-dispersive X-ray spectrometry (EDS). The aim of this work is to analyze the effect of the replacement of TiO₂ by Ta₂O₅ in a bin composition with ruthenium oxide, the influence of the addition of Ta₂O₅ on morphological properties of the surface discussed.