Electrophoretic deposition of a self-stabilizing suspension based on a nanosized multi-component electrolyte powder prepared by the laser evaporation method

This work presents the results of study of non-aqueous suspensions based on a solid state electrolyte Се0.8(Sm0.75Sr0.2Ba0.05)0.2O2-δ (CSSBO) prepared by the method of high-energy material dispersion-laser evaporation of the ceramic target. The thermal behavior of the powder was studied by thermogravimetric and differential thermal analysis (TG-DTA); the sintering kinetic was investigated by the dilatometric method. Electrokinetic study showed that the powders with nanoparticles that had an average diameter of 15 nm formed a self-stabilizing suspension with a high value of ζ-potential (+ 31 mV) in the isopropanol/acetylacetone (50/50 vol.%) dispersing medium. The CSSBO thin films (2 μm) that deposited on the dense electrode substrate of La2NiO4 + δ (LNO) after sintering for 6 h at 1400 °C had a uniform microstructure with an average grain size of 4 μm and total conductivity of 0.1 S/cm at 650 °C.