Abstract
The structure, dispersity, stability, and electrophoretic deposition (EPD) of suspensions of spherical ZrO2 stabilized Y2O3 (YSZ) nanoparticles with a mean size of 10.9 nm onto the porous surface of La0.6Sr0.4MnO3 (LSM) with a pore size of 3–20 μm were studied by electron microscopy, photon correlation spectroscopy, and electroacoustical analysis. The optimum conditions of deposition were attained by using a mixed isopropanol-acetylacetone dispersion medium, which provided the aggregative stability of the suspension with 95% individual particles. The maximum pore size on the covered surface should be up to 0.5 μm if nanoparticles with a mean diameter of 10–20 nm are used. When the pores are larger, the EPD of YSZ will be effective if an additional intermediate LSM layer is formed by EPD to provide the required pore size.
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