SYNTHESIS AND FABRICATION OF REFRACTORY URANIUM COMPOUNDS. Quarterly Report No. 4 for March 1 to April 30 and July 31, 1960

Technical Report · Wed Aug 10 04:00:00 EDT 1960

DOI:https://doi.org/10.2172/4126461· OSTI ID:4126461

Taylor, K. M.; Lenie, C. A.; Doherty, P. E.; McMurtry, C. H.

Additional work on the synthesis and fabrication of uranium nitride produced an improved product free of oxide contamination as indicated by x-ray analysis. Further work to increase the density of the sintered pellets is needed. A stock of several pounds of stoichiometric uranium monocarbide was prepared by carbon reduction of uranium dioxide. Pellets having bulk densities ranging from 93 to 96% theoretical were obtained by cold pressing and sfntering. Initial experiments on the fabrication of bars, 3 by 1/2 by 1/4 in., by cold pressing and sintering, resulted in sound but somewhat low-density bodies. A few experiments were conducted on the production of uranium monocarbide from ammonium diuranate. The results indicate that considerable addftional work may be necessary to consistently produce a stoichiometric product. The simultaneous synthesis ard hot pressing of uranium monocarbide was funther studied and pellets with balk densities as high as 96.6% theoretical (based on 100% UC) were produced. However, metallographic examination disclosed the presence of some free uranium metal in all pellets. The synthesis of 1-lb batches of U/sub 3/Si/sub 2/ of improved quality was successfully carried out by a nonquench method. Using the U/ sub 3/Si/sub 2/ so produced, sound pellets with bulk densities up to 98.5% theoretical were prepared by cold pressing and sintering. The sintering technique was also used to produce 3- by 1/2- by 1/4-in. bars for physical- property tests. (auth)

• Research Organization: Carborundum Co. Research and Development Div. , Niagara Falls, N.Y.
• Sponsoring Organization: USDOE
• NSA Number: NSA-14-025902
• OSTI ID: 4126461
• Report Number(s): TID-6591
• Country of Publication: Country unknown/Code not available
• Language: English

Related Subjects

AMMONIUM COMPOUNDS
CARBON
COLD WORKING
DENSITY
FABRICATION
INTERMETALLIC COMPOUNDS
METALLOGRAPHY
METALS, CERAMICS, AND OTHER MATERIALS
OXYGEN
PELLETS
PREPARATION
REDUCTION
REFRACTORIES
RODS
SILICATES
SINTERED MATERIALS
URANATES
URANIUM
URANIUM ALLOYS
URANIUM CARBIDES
URANIUM COMPOUNDS
URANIUM DIOXIDE
URANIUM NITRIDES
X RADIATION