COATING AND PREPARATION OF URANIUM AND THORIUM CARBIDE POWDERS

Technical Report · Mon Aug 01 04:00:00 EDT 1960

OSTI ID:4068844

Oxley, J H; Landrigan, R B; Secrest, A C; Powell, C F; Blocher, Jr, J M

Rate data were obtained for the deposition of carbon films from methane and acetylene in fluidized beds of aiumina, uranium dioxide, uranium monocarbide, uranium dicarbide, and a solid solution of uranium-thorium dicarbide powders. The carbon films were shown to provide excellent protection for the powdered fertile material against attack by hot concentrated nitric acid solutions. Exploratory experiments were made to investigate the possibility of preparing niobium carbide coatings. Approximate conditions for the codeposition of uranium and carbon were determined for a fluidized-bed vapor-deposition process. The reaction of which the data are characteristic is uncertain, since positive identification of the product as the carbide was not established. Iodine, uranium tetraiodide, methane, hydrogen, zinc, and helium gases were used as the feed and fluidizing medium for a presumably inert bed of alumina particles at 1100 to 1300 deg C. Ohe exploratory experiment was made to investigate the deposition of thorium carbide from a similar feed mixture. (auth)

• Research Organization: Battelle Memorial Inst., Columbus, Ohio
• NSA Number: NSA-15-013302
• OSTI ID: 4068844
• Report Number(s): BMI-X-160
• Country of Publication: Country unknown/Code not available
• Language: English

Related Subjects

ACETYLENES
ALUMINUM OXIDES
CARBON
COATING
CORROSION PROTECTION
FILMS
FLUIDIZATION
HELIUM
HYDROGEN
IODINE
METALS, CERAMICS, AND OTHER MATERIALS
METHANE
NIOBIUM CARBIDES
NITRIC ACID
POWDERS
PREPARATION
SOLID SOLUTIONS
THORIUM CARBIDES
URANIUM CARBIDES
URANIUM DIOXIDE
URANIUM IODIDES
ZINC