Zirconium dioxide has exceptional fracture toughness and chemical resistance, these properties make this oxide used as a thermal barrier coating, a common diamond substitute, a refractory material, in grinding wheels and sandpaper, in laboratory crucibles and in metallurgical furnaces. Antimony oxides were found to exhibit some promising properties as catalysts for oxygen evolution reactions, thin film capacitors, photoconductor and proton conductor for preparation of WO3 type electrochromic display device. Therefore the study of the effects of mixed solvents of formation on these oxide films properties and on their dissolution kinetics services the modern industries.

Awad sadek,PhD of physical chemistry from Cairo university in 1986. Prof. of physical chemistry at Cairo univ. He is interested in the studies of corrosion inhibition of metals and alloys, preparation of thin anodic oxide film, superconductor preparation, electrochemical treatment of textile wastewater and nanoporous silicon preparation.