S. Duan
1999
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Abstract
In this paper the cyclic voltammetry, and chronoamperometry were used to study the electrode process o f Y(III) in chloride melts. The intermetallic compounds are formed first, then metallic yttrium is deposited when yttrium ions in molten chlorides is reduced on the aluminium, nickel, and copper electrodes. The formation processes of intermetallic compounds are controlled by diffusion of yttrium atoms into the substrates and rates for formation of intermetallic compounds are increased with increasing potential and temperature. Alloy layers of Y-Al, Y-Ni and Y-Cu obtained after electrolysis at the constant potentials determined from the foundation of electrochemical research are shiny, smooth and non-porous.