The electrolysis condition to obtain Ti metal in a CaF_2-MgF_2 with CaO and TiO_2 has been studied at 1573K. It was shown by cyclic voltammetry that cathodic current increased below 0.8V (vs. Mg/Mg~(2+)) with CaO and TiO_2 addition and that three reduction steps of Ti was suggested. The particles containing Ti were obtained by potentio-static electrolysis; only Ti oxide particles were detected by the electrolysis above 0.5V, while Ti metal particles did by the electrolysis below 0.4V. This result indicates that Ti metal can be electrodeposited below 0.4V (vs. Mg/Mg~(2+)).
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