RADIATION STABILITY OF SPHERICAL AND HYDROTHERMAL UO$sub 2$ DISPERSED IN TYPE 318 STAINLESS

Technical Report · Fri Jul 14 04:00:00 EDT 1961

OSTI ID:4002691

Freas, D G; Saling, J H; Gates, J E; Keller, D L; Dickerson, R F

An irradiation study of dispersions of fully enriched 30 wt% MCW spherical U0/sub 2/ and 30 wt% ORNL hydrothermal U0/sub 2/ in Type 318 stainless steel was performed to compare tbe irradiation stability of the two dispersions. Eight specimens were irradiated in the MTR in two capsules equipped with thermocouples. Temperature measurements and isotopic-burn-up analyses indicated that the specimens were irradiated at center-line temperatures ranging from about 800 to 1600 deg F with burn-ups ranging from 11.8 to 15.1 at% of the uranium-235. The post-irradiation examination of the specimens from these capsules included fission-gas analyses, dimensional and density determinations, isotopicburn-up analyses, quantitative metallographic examinations, and a study of swelling in the indivfdual fuel particles. Only minor changes in the dimensions and appearance of both types of dispersions were observed as a result of irradiation under the experimental conditions. Measurements of U0/sub 2/ particle sizes revealed that gross swelling did not occur in either type of U0/sub 2/ dispersions during irradiation. (auth)

• Research Organization: Battelle Memorial Inst., Columbus, Ohio
• DOE Contract Number: W-7405-ENG-92
• NSA Number: NSA-15-026610
• OSTI ID: 4002691
• Report Number(s): BMI-1529
• Country of Publication: United States
• Language: English

Related Subjects

BURNUP
CONFIGURATION
DENSITY
DISPERSIONS
DISTRIBUTION
EXPANSION
FISSION PRODUCTS
GASES
GRAIN SIZE
IRRADIATION
ISOTOPES
MATERIALS TESTING
MEASURED VALUES
METALLOGRAPHY
METALS, CERAMICS, AND OTHER MATERIALS
NEUTRON BEAMS
PARTICLES
QUALITATIVE ANALYSIS
QUANTITATIVE ANALYSIS
RADIATION EFFECTS
REACTORS
SPHERES
STABILITY
STAINLESS STEELS
TEMPERATURE
URANIUM DIOXIDE
VOLUME