摘要
稀土钐(Sm)是变价稀土元素,因此Sm合金具有独有的特性,使其成为一种极具潜力的功能材料,常被应用于稀土永磁、储氢、发光以及航空航天等领域。系统地比较了现阶段制备Sm合金方法的优缺点,其中熔盐电解法制备Sm合金具有产物更加纯净、低成本、连续作业等优点,成为近期学者的研究热点。然后,重点阐述了熔盐电解法制备Sm-Al、Sm-Cu、Sm-Co、Sm-Ni和Sm-Fe合金的最新研究进展及存在的问题,介绍了Sm离子在熔盐中的电化学行为及Sm合金在阴极上的生成规律,并提出了熔盐电解法制备Sm合金进一步向产业化方面发展的重点研究方向。
Samarium alloy is considered to be a potential function material,which has changeable electrovalence character,is widely used as permanent-magnetic,hydrogen-storage,luminescent and aerospace materials.In this paper,the advantages and disadvantages of the current methods for preparing Sm alloys were systematically compared.In contrast,the molten salt electrolysis preparation has the advantages of purer products,low cost,and continuous operation,which makes this method a research hotspot in current research.The latest research progress and existing problems on the preparation of Sm-Al,Sm-Cu,Sm-Co,Sm-Ni and Sm-Fe alloys by molten salt electrolysis were emphatically described,and the electrochemical behaviors of Sm;in molten salt and the formation rule of Sm alloy on the cathode were introduced.The direction of further industrialization of Sm alloy prepared by molten salt electrolysis was also put forward.
作者
康佳
刘玉宝
于兵
黄海涛
张全军
闫奇操
KANG Jia;LIU Yubao;YU Bing;HUANG Haitao;ZHANG Quanjun;YAN Qicao(State Key Laboratory of Baiyunobo Rare Earth Resource Researches and Comprehensive Utilization,Baotou Research Institute of Rare Earths,Baotou 014030,China)
出处
《中国材料进展》
CAS
CSCD
北大核心
2022年第2期148-155,共8页
Materials China
基金
内蒙古自治区应用技术研究与开发资金项目(201802009)
北方稀土科技开发项目(2020H2179)
白云鄂博稀土资源研究与综合利用国家重点实验室自主课题项目(2018Z2002,2019Z2055,2020Z2132)。
关键词
熔盐电解法
Sm合金
稀土
电化学行为
生成规律
molten salt electrolysis
Sm alloy
rare earth
electrochemical behavior
formation rule
