THE PREPARATION OF URANIUM MONOCARBIDE-PLUTONIUM MONOCARBIDE SOLID SOLUTIONS, PLUTONIUM SESQUICARBIDE AND PLUTONIUM MONOCARBIDE
Hypostoicheiometric uranium monocarbide-- plutonium monocarbide solid solutions with no impurities detectable by x-ray diffraction oi metallographic examination were prepared by sintering at 1450-1850 deg C mixtures of uranium dioxide, plutonium dioxide, and graphite. Pellets with densities up to 12.85 g/ cm/sup 3/ (94.5 per cent of theoretical density) were achieved by a second sintering of pressed pellets of the reaction product. By a similar procedure single-phase stoicheiometric plutonium sesquicarbide was prepared with pellet densities up to 12.6 g/cm/sup 3/ (99 per cent of theoretical density). However, hypostoicheiometric plutonium monocarbide prepared in the same manner always contained plutonium sesquicarbide as the only impurity, Arc melting of the sintered uranium monocarbide-plutonium monocarbide solid solutions and plutonium sesquicarbide yielded comparably pure materials of near theoretical density. Arc melting of the sintered plutonium monocarbide eliminated the plutonium sesquicarbide impurity resulting in a single-phase hypostoicheiometric plutonium monocarbide. (auth)
- Research Organization:
- Los Alamos Scientific Lab., N. Mex.
- NSA Number:
- NSA-16-025706
- OSTI ID:
- 4816059
- Journal Information:
- J. Inorg. & Nuclear Chem., Journal Name: J. Inorg. & Nuclear Chem. Vol. Vol: 24
- Country of Publication:
- Country unknown/Code not available
- Language:
- English
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