Lab Scale Synthesis of Al-Sc Alloys in NaF-AlF3-Al2O3-Sc2O3 Melt

Yuriy Zaikov; Olga Tkacheva; Andrey Suzdaltsev; Alexander Kataev; Yuriy Shtefanyuk; Vitaliy Pingin; Dmitriy Vinogradov

doi:10.4028/www.scientific.net/AMR.1088.213

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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 1088Lab Scale Synthesis of Al-Sc Alloys in...

Lab Scale Synthesis of Al-Sc Alloys in NaF-AlF₃-Al₂O₃-Sc₂O₃ Melt

Abstract:

The liquidus temperature in the [NaF-AlF₃(30 mol.%)]-Sc₂O₃molten system with the Sc₂O₃additions 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∙cm^-2), the Sc₂O₃content (1, 2, 4, and 8 wt%) in the NaF-AlF₃(30 mol.%)-Al₂O₃-Sc₂O₃ 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 °С 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.

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Periodical:

Advanced Materials Research (Volume 1088)

Pages:

213-216

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.1088.213

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Online since:

February 2015

Authors:

Yuriy Zaikov, Olga Tkacheva, Andrey Suzdaltsev*, Alexander Kataev, Yuriy Shtefanyuk, Vitaliy Pingin, Dmitriy Vinogradov

Keywords:

Aluminothermy, Aluminum-Scandium Alloy, Cryolite, Electrolysis, Sc₂O₃ Solubility

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