Plutonium diffusion in advanced fuels (U,Pu)(C,O) and (U,Pu)(C,N)

Journal Article · Fri Jul 01 00:00:00 EDT 1983 · Nucl. Sci. Eng.; (United States)

OSTI ID:5735259

Bradbury, M H; Matzke, H

The self-diffusion of /sup 238/Pu was measured in an oxicarbide (U,Pu)(C,O) and a carbonitride (U,Pu) (C,N). The activation enthalpies were 447 and 347 kJ mol/sup -1/, respectively. The carbonitrides were confirmed to fall into three classes: carbide-like compositions with less than 30% nitrogen in the metalloid lattice, nitride-like composition with more than 70% nitrogen and with reduced atomic mobilities, and carbonitrides with about 50% nitrogen showing an intermediate behavior. The oxicarbide showed diffusion coefficients slightly larger than those of pure carbides.

• Research Organization: Commission of the European Communities, Joint Research Centre, Karlsruhe Establishment, European Institute for Transuranium Elements, Postfach 2266 D-7500 Karlsruhe
• OSTI ID: 5735259
• Journal Information: Nucl. Sci. Eng.; (United States), Vol. 84:3
• Country of Publication: United States
• Language: English

Related Subjects

11 NUCLEAR FUEL CYCLE AND FUEL MATERIALS
36 MATERIALS SCIENCE
PLUTONIUM 238
SELF-DIFFUSION
PLUTONIUM CARBIDES
PLUTONIUM NITRIDES
PLUTONIUM OXIDES
ACTIVATION ENERGY
ATOM TRANSPORT
CARBIDES
CARBONITRIDES
ENTHALPY
NITROGEN
NUCLEAR FUELS
SEMIMETALS
ACTINIDE COMPOUNDS
ACTINIDE ISOTOPES
ACTINIDE NUCLEI
ALPHA DECAY RADIOISOTOPES
CARBON COMPOUNDS
CHALCOGENIDES
DIFFUSION
ELEMENTS
ENERGY
ENERGY SOURCES
EVEN-EVEN NUCLEI
FUELS
HEAVY NUCLEI
ISOTOPES
MATERIALS
NEUTRAL-PARTICLE TRANSPORT
NITRIDES
NITROGEN COMPOUNDS
NONMETALS
NUCLEI
OXIDES
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
PLUTONIUM COMPOUNDS
PLUTONIUM ISOTOPES
PNICTIDES
RADIATION TRANSPORT
RADIOISOTOPES
REACTOR MATERIALS
THERMODYNAMIC PROPERTIES
TRANSURANIUM COMPOUNDS
YEARS LIVING RADIOISOTOPES
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