Preparation and physical properties of U sub 3 O sub 8

Technical Report · Mon Jan 31 00:00:00 EST 1983

OSTI ID:5492246

Peacock, H B

Uranyl nitrate solution from 200-Area processing of spent SRP fuel tubes is now sent to Oak Ridge Y-12 for conversion of uranium metal. However, after implementation of the powder metallurgy (P/M) process, U{sub 3}O{sub 8} powder will be needed at SRP but not uranium metal. U{sub 3}O{sub 8} powder for fabrication and irradiation tests was produced during development of P/M at SRL by firing UO{sub 3}, obtained from Y-12, at 800{degrees}C for 6 hours in a low grade nitrogen atmosphere. The UO{sub 3} powder was produced by denitration of unsulfated uranyl nitrate solution. The stoichiometry, particle size distribution, surface area and density of the Y-12 and SRL powders were measured. A comparison was then made between SRL U{sub 3}O{sub 8} produced at 800{degrees}C in nitrogen and in air and U{sub 3}O{sub 8} produced at Y-12 at other heating temperatures.

• Research Organization: Du Pont de Nemours (E.I.) and Co., Aiken, SC (United States). Savannah River Lab.
• Sponsoring Organization: USDOE; USDOE, Washington, DC (United States)
• DOE Contract Number: AC09-89SR18035
• OSTI ID: 5492246
• Report Number(s): DPST-83-276; ON: DE92011120
• Country of Publication: United States
• Language: English

Related Subjects

11 NUCLEAR FUEL CYCLE AND FUEL MATERIALS
36 MATERIALS SCIENCE
URANIUM OXIDES
PYROLYSIS
URANIUM OXIDES U3O8
CHEMICAL PREPARATION
PHYSICAL PROPERTIES
URANYL NITRATES
DENITRATION
BULK DENSITY
PARTICLE SIZE
STOICHIOMETRY
SURFACE AREA
ACTINIDE COMPOUNDS
CHALCOGENIDES
CHEMICAL REACTIONS
DECOMPOSITION
DENSITY
NITRATES
NITROGEN COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
SIZE
SURFACE PROPERTIES
SYNTHESIS
THERMOCHEMICAL PROCESSES
URANIUM COMPOUNDS
URANYL COMPOUNDS
050700* - Nuclear Fuels- Fuels Production & Properties
360201 - Ceramics
Cermets
& Refractories- Preparation & Fabrication
360204 - Ceramics
Cermets
& Refractories- Physical Properties