Electrochemical synthesis of powders of holmium and nickel intermetallic compounds in halogenide melts

Abstract

The results of high-temperature electrochemical synthesis of powders of holmium and nickel intermetallic compounds are presented. Optimal synthesis conditions of these compounds are as follows: the electrolysis temperature (923–1073 K), cathodic current density (0.5–1.9 A/cm²), and composition of the electrolysis bath (mol %): KCl(48.25–49.5)–NaCl(48.25–49.5)–HoCl₃(0.5–3.0)–NiCl₂(0.5–2.5). The composition of formed powders is investigated by X-ray phase analysis and scanning electron microscopy.