Lab Scale Synthesis of Al-Sc Alloys in NaF-AlF sub(3)-Al sub(2) O sub(3)-Sc sub(2) O sub(3) Melt

• Published in: Advanced Materials Research Vol. 1088; pp. 213 - 216
• Main Authors: Zaikov, Yuriy Pavlovich, Tkacheva, Olga, Suzdaltsev, Andrey, Kataev, Alexander, Shtefanyuk, Yuriy, Pingin, Vitaliy, Vinogradov, Dmitriy
• Format: Journal Article
• Language: English
• Published: 01.02.2015
• Subjects: Alloys; Aluminum; Electrolytes; Liquidus; Melts; Scandium; Scandium base alloys; Synthesis
• ISBN: 3038354023; 9783038354024
• ISSN: 1022-6680; 1662-8985
• DOI: 10.4028/www.scientific.net/AMR.1088.213

The liquidus temperature in the [NaF-AlF sub(3)(30 mol.%)]-Sc sub(2) O sub(3) molten system with the Sc sub(2) O sub(3) additions up to 12 wt% was measured by the thermo analysis. The effect of the cathode current density (0, 0.25, 0.50, and 1.0 A[middot]cm super(-2)), the Sc sub(2) O sub(3) content (1, 2, 4, and 8 wt%) in the NaF-AlF sub(3)(30 mol.%)-Al sub(2) O sub(3)-Sc sub(2) O sub(3) electrolyte, the rate of the molten aluminum agitation (0, 100 rotates/min), the synthesis duration (30-210 min) on the Sc content in the aluminum alloy at 980 [degrees]C was studied. The Al-Sc alloys with the scandium content of 0.15-1.30 wt%, depending on the synthesis conditions, and with the uniform Sc distribution throughout the aluminum matrix were produced.