Influence of zirconia stoichiometry on morphology of applied on its surface noble metals thin films after anneling

Abstract

The zirconia stoichiometry influence on structure of applied on its surface thin films of noble metals (platinum and palladium) at annealing was investigated. Films were applied on stoichiometric zirconia (“white”) and on obtained by annealing in vacuum non-stoichiometric (“black”). Samples were then heated, films structure transforms in both cases. But on “white” the fragmentation of films occurs, and on “black” new phase forms, obviously noble metals react to zirconium from substrate, intermetallides of noble metal— zirconium system forms.