Anodic Polarization of Nickel in Alkali Metal Carbonates,
Abstract
Anodic polarization of nickel in a molten triple eutectic mixture of alkali metal carbonates was studied at 600-800C. It was shown that the self-diffusion current of nickel is small in a melt of alkali metal carbonates, in the absence of thermal dissociation. At higher current densities, migration of nickel into the melt is accompanied by formation of a film which is difficult to dissolve, of nickel monoxide (600C) or a solid solution of Li2O-NiO (800C), which inhibits the process of anode solution of the metal. It was determined that the solid LiO2-NiO film passivates nickel more strongly than the friable nickel monoxide, which retards nickel oxidation negligibly.
Document Details
- Document Type
- Technical Report
- Publication Date
- Dec 24, 1973
- Accession Number
- AD0784159
Entities
People
- B. S. Shibanov
- I. N. Ozeryanaya
- M. V. Smirnov
- O. P. Penyagina
Organizations
- United States Army Foreign Science and Technology Center