Study on the process of preparing Al-Ce alloy by electrodeposition

Abstract

The process of Al-Ce alloy prepared by electrodeposition was studied in molten LiF-KCl-CeF3 salt at 820 °C. Several process parameters such as back electromotive force and current efficiency were measured by continuous pulse oscillograph. The results showed that the back electromotive force increased with the increase of the current intensity. With the addition of 2 wt.%Ce2O2, the back electromotive force decreased by 0,26 V on average, and increasing temperature could make the back electromotive force decrease as well. The back electromotive force changing period with feeding measured was 50 min. Finally, at 820 °C, the largest current efficiency (68.8 %) was obtained by electrolyzing for 2 h at 4 A.

Keywords

• Al-Ce alloy
• electrodeposition
• current efficiency
• back electromotive force
• molten salt