Electrolytic Preparation of Al-Sm Alloy in SmF3-LiF-Sm2O3 Molten Salt System
Electrolytic Preparation of Al-Sm Alloy in SmF3-LiF-Sm2O3 Molten Salt System
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DOI：
10.5755/j01.ms.25.4.20437
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发表时间：
2019-06
影响因子：
0.9
通讯作者：
Xiaoliang Zhang;Chubin Yang;Hongxia Liu;Guanghuai Peng
中科院分区：
文献类型：
--
作者：
Xiaoliang Zhang;Chubin Yang;Hongxia Liu;Guanghuai Peng
本文将Al棒作为液体阴极添加到SmF3-LiF-Sm2O3熔盐体系中，采用液体阴极电解法制备了Al-Sm合金。研究了电解温度、阴极电流密度和电解液成分对电流效率的影响。结果表明，Al-Sm间合金中Sm的最大含量可达32.8wt.%，而合金主要由Al基体、Al4Sm和Al3Sm相组成。随着电解温度和阴极电流密度的增加，电流效率先增加后减少。同时，电解质成分对电流效率有很大影响。当SmF3与LiF的质量比为4时，电流效率为62.8%。
In the present paper, an Al rod as liquid cathode was added into the SmF3-LiF-Sm2O3 molten salt system and subsequently the Al-Sm alloy was prepared by the liquid cathode electrolysis method. The effects of electrolysis temperature, cathode current density and electrolyte composition on the current efficiency were studied. The results demonstrated that the maximum content of Sm in the Al-Sm interalloy could reach up to 32.8 wt.%, whereas the alloy was mainly composed of the Al substrate, Al4Sm and Al3Sm phases. The current efficiency increased first subsequently decreased as the electrolysis temperature and cathode current density increased. Simultaneously, the electrolyte composition had a high impact on the current efficiency. When the mass ratio of SmF3and LiF was 4, the current efficiency was 62.8 %.