Yu. P. Zaikov, A. V. Isakov, A. P. Apisarov, A. O. Nikitina
ABSTRACT:
The synthesis of iridium powder in molten NaCl–KCl media at 700°C was carried out for the first time. The effect of the cathode and anode current density ratio (ik/iа) on structure and morphology of iridium powder was investigated. Single-phase and polycrystalline iridium powders with specific surface up to 16.8 m2/g were obtained. The phase composition and surface texture of the obtained deposits were studied. Dependences of specific surface and dendrite size of iridium powders from ik/iа ratio were analyzed.
KEYWORDS:
iridium, powder, molten salt synthesis, secondary recovering