Method for providing uranium articles with a corrosion-resistant anodized coating
Uranium articles are provided with anodized oxide coatings in an aqueous solution of an electrolyte selected from the group consisting of potassium phosphate, potassium hydroxide, ammonium hydroxide, and a mixture of potassium tetraborate and boric acid. The uranium articles are anodized at a temperature greater than about 75/sup 0/C with a current flow of less than about 0.036 A/cm/sup 2/ of surface area while the pH of the solution is maintained in a range of about 2 to 11.5. The pH values of the aqueous solution and the low current density utilized during the electrolysis prevent excessive dissolution of the uranium and porosity in the film or watering. The relatively high temperature of the electrolyte bath inhibits hydration and the attendant deleterious pitting so as to enhance corrosion resistance of the anodized coating.
- DOE Contract Number:
- W-7405-ENG-26
- Assignee:
- Dept. of Energy
- Application Number:
- ON: DE82004446
- OSTI ID:
- 5683454
- Country of Publication:
- United States
- Language:
- English
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Method for providing uranium articles with a corrosion resistant anodized coating
Method for using anodes having NICO/sub 2/O/sub 4/ catalyst for the electrolysis of potassium hydroxide solutions and method of making an anode containing NICO/sub 2/O/sub 4/ catalyst
Related Subjects
URANIUM
ANODIZATION
CORROSION RESISTANCE
URANIUM OXIDES
ACTINIDE COMPOUNDS
ACTINIDES
CHALCOGENIDES
CHEMICAL COATING
CORROSION PROTECTION
DEPOSITION
ELECTROCHEMICAL COATING
ELECTROLYSIS
ELEMENTS
LYSIS
METALS
OXIDES
OXYGEN COMPOUNDS
SURFACE COATING
URANIUM COMPOUNDS
360101* - Metals & Alloys- Preparation & Fabrication