Wei HAN
金属学报(英文版)
This work presents a study on electrochemical formation of Mg-Li-Al alloys on an inert electrode (Mo electrode) in a molten KCl-LiCl-AlCl3-MgCl2-KF system. It aims at preparation Mg-Li-Al metal alloy directly under an optimal electrolytic parameters. Main factors which affect current efficiency are investigated. We have discussed the co-electrodeposition conditions and the effect of technical parameters on these experiments, and gained a good electrolytic process. The result of calculation shows that co-electrodeposition Mg, Li and Al occurs at the cathode current density higher than 9 A/cm2 and electrolytic voltage between 6 to 9 V. And at the optimal parameters, 12-13 A/cm2, 620-640 ℃, the highest current efficiency reaches as high as 86 %. Lithium combined with magnesium forms Li0.92Mg4.08 and Li3Mg7, and aluminum mainly exists in a form of Mg0.58Al0.42, distributing in the alpha phases and beta phases.
关键词:
Mg-Li-Al
,
熔盐
,
电解
,
共电沉积
