ELECTROCHEMICAL SYNTHESIS OF OXIDE THICK-FILM ON THE STABILIZED ZIRCONIA SURFACE IN MOLTEN-SALT

A new method for the electrochemical synthesis of oxide thick film in molten salt was developed. The following galvanic cell was assembled, and the electrolysis was carried out at 973 K Pt, metal\(50-x/2) mole percent (m/o) KCl-(50-x/2) m/o NaCl-x m/o additive\(O2-)YSZ\O-2, Pt wh ere the additive was an oxide or a chloride containing the metal ions of the anode. When the additive was dissolved and ionized in the molte n salt, its oxide film formed on the stabilized zirconia surface. At t his time, metal ions derived from the additive were carried to the sta bilized zirconia surface under an electric field, and reacted with oxi de ions, coming from the oxygen electrode through zirconia solid elect rolyte, to form the oxide film.