Influence of the process parameters on the ESD synthesis of thin film YSZ electrolytes

Roberto Neagu (1) , Dainius Perednis (1) , Agnès Princivalle (1) , Elisabeth Djurado (1)

1 LEPMI - Laboratoire d'Electrochimie et de Physico-chimie des Matériaux et des Interfaces

This paper presents the results of a process optimisation study applied to the synthesis of thin 8YSZ films by electrostatic spray deposition (ESD). The goal was to obtain thin, dense and continuous 8YSZ coatings. Starting from a zirconium acetylacetonate in ethanol – butyl carbitol solution as precursor, the influence of the main process parameters – substrate temperature, nozzle to substrate distance and solution flow rate – has been studied. The microstructure has been characterised by SEM imagery. The study allowed us to define a three dimensional domain of optimal values of the process parameters where dense and thin doped zirconia coatings were obtained for the employed nozzle geometry and solution concentration.

Mots clés: Electrospraying; IT?SOFC; Thin film electrolyte; YSZ

Domaines: Matériaux

Roberto Neagu, Dainius Perednis, Agnès Princivalle, Elisabeth Djurado. Influence of the process parameters on the ESD synthesis of thin film YSZ electrolytes. Solid State Ionics, 2006, 177 (19-25), pp. 1981-1984. ⟨10.1016/j.ssi.2006.05.052⟩. ⟨hal-00333650⟩