The electrochemical formation of Al-Cu alloys in a LiCl-KCl-AlCl sub(3) molten salt

An electrochemical method was developed for the formation of Al-Cu alloys. The electrodeposition of aluminum on Mo and Cu substrates was studied using cyclic voltammetry in molten LiCl-KCl-AlCl sub(3) (2 wt.%). During the cathodic scan of the cyclic voltammograms, three different Al-Cu alloys were o...

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Published inElectrochimica acta Vol. 196; pp. 162 - 168
Main Authors Li, Wei, Chen, Zeng, Wei, Chaochao, Kong, Wenping, Xu, Binghua, Jia, Xiyang, Diao, Chunli, Li, Shengjun
Format Journal Article
LanguageEnglish
Published 01.04.2016
Subjects
Alloys
Aluminum
Circuits
Deposition
Formations
Fused salts
Substrates
Voltammetry
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Summary:An electrochemical method was developed for the formation of Al-Cu alloys. The electrodeposition of aluminum on Mo and Cu substrates was studied using cyclic voltammetry in molten LiCl-KCl-AlCl sub(3) (2 wt.%). During the cathodic scan of the cyclic voltammograms, three different Al-Cu alloys were observed before pure Al formed on the Cu substrate. The electrochemical formation processes were studied using square wave voltammetry and open circuit chronopotentiometry. The products of the different reduction processes were identified using XRD. The XRD results indicated that three different Al-Cu intermetallic compounds, Al sub(4)Cu sub(9), AlCu, and Al sub(2)Cu, were obtained using electrochemical deposition in the molten salt system.
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ISSN:0013-4686
DOI:10.1016/j.electacta.2016.02.179