Abstract
The feasibility is demonstrated of producing an electrolytic tungsten-iron powder by the simultaneous reduction of tungsten and iron on the cathode under conditions of diffusional kinetics. An investigation was carried out into the effect of cathodic current density, combined and relative concentrations of FeSO4 and Na2WO4 in the solution, ammonium citrate concentration, and solution pH on the current efficiency, chemical conposition, and degree of dispersion of the tungsten-iron powder. It has been established that raising the metal salt concentrations and lowering the cathodic current density and ammonium citrate concentration in the solution bring about a substantial increase in the tungsten-iron powder current efficiency [5], Microscopical examinations have shown that the particles of the powder always have a dendritic shape, whose character is affected, to a smaller or greater extent, by all the parameters investigated. The optimum conditions for the production of electrolytic tungsten-iron powders have been determined.
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