Neuimin A. D. RussiaYekaterinburg Institute of high-temperature Electrochemistry UB of RAS, 20, Akademicheskaya St., Yekaterinburg, 620990 Author's articles Stability of the structural and electrical characteristics of solid electrolytes in the system ZrO2 – Sc2O3 – rare-earth oxide Phase composition, electric conductivity, stability of solid electrolyte ZrO2–Sc2O3 and ZrO2–Sc2O3–CeO2 systems' characteristics in area of low content of Sc2O3 and CeO2