The Electrolytic Polarization of Beryllium
Abstract
The anodic and cathodic polarization behavior of Be was determined in a number of unstirred aqueous electrolytes at 22 C with current densities in the range of 10 to the -7th power to 10 to the -2nd power amps/per square centimeter. CrO4 and PO4 ions induced considerable anodic polarization. There was some evidence that the anodic potential was increased due to BeO film formation in the presence of CrO4, NO3, and AlO2 ions. A Flade Potential was not observed. Be was activated and attacked anodically in the presence of Cl, ClO3, F and SO4 ions. Other ions investigated were B4O7, C2H3O2, CO3, MnO4, OH, and SiO3. Na2CrO4 was an effective cathodic polarizer over a broad range of current densities. Most of the electrolytes exhibited a common Tafel region for hydrogen evolution. Some corrosion aspects of the solutions are also discussed.
Document Details
- Document Type
- Technical Report
- Publication Date
- Nov 01, 1961
- Accession Number
- AD0267976
Entities
People
- D. J. Levy
Organizations
- Lockheed Martin Missiles and Space