Thin Scandium Layer on Solid Aluminium: Thermodynamic Investigation

Abstract:

Thin scandium-containing layers fabricated by different methods are good systems to investigate some properties of Al-Sc intermetallic compounds (IMC). The electrochemical deposition of a thin scandium layer onto a solid metallic surface leads to complex diffusion processes, especially if the second metal forms a number of IMC with Sc. Here, we used the electromotive force (EMF) method to study thin Al-Sc films in dynamics. Also, the Al-Sc alloy layers were prepared by direct aluminium-scandium interaction. The results of SEM and EDX investigations of these alloys are also presented in this paper. Analogue coatings (like Sc on Ni, Y on Cu, Al on Ni etc.) were also considered in order to discuss the phase sequence formation.

• Periodical: Defect and Diffusion Forum (Volumes 312-315)
• Pages: 211-216
• DOI: https://doi.org/10.4028/www.scientific.net/DDF.312-315.211
• Online since: April 2011
• Authors: A.B. Shubin, K. Y. Shunyaev, L.F. Yamshchikov
• Keywords: Alloy, Aluminum (Al), Diffusion, Intermetallic Compound (IMC), Scandium, Thermodynamic

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