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Electrodeposition of Al-Mo Alloys from the Lewis Acidic Aluminum Chloride-1-Ethyl-3-Methylimidazolium Chloride Molten Salt

Published

Author(s)

T Tsuda, C L. Hussey, Gery R. Stafford

Abstract

The electrodeposition of aluminum Molybdenum alloys was examined at copper rotating disk and wire substrates in the Lewis acidic 66.7-33.3 mole percent aluminum chloride-1-ethyl-3-methylimidazolium chloride molten salt containing Mo(II) in form of dissolved (Mo6Cl8)Cl4. The molybdenum content of the electrodeposits depneded on the electrode rotation rate, Mo(II) concentration, and the bath temperature. it was possible to produce non-equilibrium alloys containing up to 11 atomic percent Mo. These alloy deposits were dense, crystalline, and chloride-free. Al-Mo alloys containing more than 8 atomic percent Mo exhibited a chloride corrosion pitting potential of approximately +800 mV against pure aluminum. The corrosion resistance of this alloy is superior to that of all of the aluminum-transition metal alloys that have been electrodeposited to date from chloroaluminate molten salts.
Citation
Journal of the Electrochemical Society
Volume
152
Issue
9

Keywords

aluminum-molybdenum, electrodeposition, molten salt

Citation

Tsuda, T. , Hussey, C. and Stafford, G. (2004), Electrodeposition of Al-Mo Alloys from the Lewis Acidic Aluminum Chloride-1-Ethyl-3-Methylimidazolium Chloride Molten Salt, Journal of the Electrochemical Society, [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=853297 (Accessed April 16, 2024)
Created April 30, 2004, Updated October 12, 2021