Challenges of Formation of Thin-Film Solid Electrolyte Layers on Non-Conductive Substrates by Electrophoretic Deposition

In this work, the challenges associated with formation of single and bilayer coatings based on Ce0.8Sm0.2O1.9 (SDC) CuO modified BaCe0.5Zr0.3Y0.1Yb0.1O3?? (BCZYYbO-CuO) solid state electrolytes porous non-conducting NiO-SDC anode substrates by method electrophoretic deposition (EPD) are considered. Various approaches that had been selected after analysis literature data in order to carry out EPD, tested: direct a non-conductive substrate multiple options for creating conductivity under EPD conditions such as reduction creation surface conducting sublayer via synthesizing polypyrrole (PPy) film. New effective was proposed platinum layer front side substrate. It ascertained that, during substrate, continuous coating did not occur, which may be due insufficient porosity used. shown use reduced leads cracking and, some cases, destruction entire SDC/NiO-SDC structure. The dependence electrolyte film sinterability shrinkage studied. contrast data, pre-sintering temperature no pronounced effect densification SDC revealed complete sintering developed grain structure is possible at 1550 °C.