The electrochemical formation of Al-Cu alloys in a LiCl-KCl-AlCl3 molten salt. (1st April 2016)

• Record Type: Journal Article
• Authors: Li, Wei; Chen, Zeng; Wei, Chaochao; Kong, Wenping; Xu, Binghua; Jia, Xiyang; Diao, Chunli; Li, Shengjun
• Is Part Of: Electrochimica acta. Volume 196(2016)
• Page Start: 162
• Page End: 168
• Publication Date: 2016-04-01
• Subjects: Al-Cu alloys -- Electrodeposition -- Molten salt -- LiCl-KCl eutectic; Electrochemistry -- Periodicals; Electrochemistry, Industrial -- Periodicals; 541.37
• DOI: 10.1016/j.electacta.2016.02.179
• Languages: English
• ISSNs: 0013-4686

Abstract

Highlights: Three different Al-Cu intermetallic compounds, Al4 Cu9, AlCu and Al2 Cu were electrodeposited from molten salt system. The electrochemical formation mechanism of Al-Cu alloy was investigated. Abstract: 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-AlCl3 (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, Al4 Cu9, AlCu, and Al2 Cu, were obtained using electrochemical deposition in the molten salt system.