Abstract
Joint electroreduction of tantalum and silicon fluoride complexes was studied by cyclic voltammetry in the (NaQ-KQ)equimol.-NaF-K2SiF6-K2TaF7 melt. The formation of tantalum silicides has been studied by cyclic voltammetry and chronopotentiometry methods. Parameters for electrochemical synthesis of tantalum silicides were found. Tantalum silicide powders were obtained by potentiostatic electrolysis at different potentials, at temperature of 1073K and duration of the process 2 hours. Tantalum silicide coatings on a silver substrate were synthesized by galvanostatic electrolysis at current densities 30–130 mA cm−2 and contact displacement method. The relationship between current density and composition of the tantalum silicide coatings was shown.
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