Influence of vibration on the polarization of the cathode and current efficiency in the refining of niobium in chloride-fluoride melts

Journal Article · Sun Dec 01 04:00:00 EST 1985 · Sov. Electrochem. (Engl. Transl.); (United States)

OSTI ID:5188166

Khramov, A P; Batukhtin, V P; Ivanovskii, L E

The authors present the results of a study of the influence of vertical vibration of the cathode on its polarization and the current efficiency in the case of the refining of niobium in chloride-fluoride melts. The measurement of the polarization was carried out in a three-electrode cell by recording polarization curves. The current efficiency of niobium when its content in the electrolyte is 3.5 wt.% is shown. A pulse galvanostat was used for polarization. The dependence of the polarization of the cathode on the vibration frequency and on the vibration amplitude is shown. The results of the experiments carried out to study the deposition of niobium on a vibrating cathode showed that the reduction of the diffusional hindrances and the lowering of the true current density on a growing dendritic deposit make it possible to significantly intensify the process without noticeably lowering the current efficiency.

• Research Organization: Institute of Electrochemistry, Academy of Sciences of the USSR, Ural Science Center, Sverdlovsk
• OSTI ID: 5188166
• Journal Information: Sov. Electrochem. (Engl. Transl.); (United States), Journal Name: Sov. Electrochem. (Engl. Transl.); (United States) Vol. 21:6; ISSN SOECA
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400400* -- Electrochemistry
CATHODES
CRYSTALS
CURRENT DENSITY
DENDRITES
DEPOSITION
EFFICIENCY
ELECTRODEPOSITION
ELECTRODES
ELECTROLYSIS
ELECTROLYTES
ELECTROREFINING
ELEMENTS
ENERGY EFFICIENCY
FREQUENCY DEPENDENCE
LYSIS
MECHANICAL VIBRATIONS
METALS
MOLTEN SALTS
NIOBIUM
POLARIZATION
PROCESSING
REFINING
SALTS
SURFACE COATING
TRANSITION ELEMENTS