Self-diffusion processes in nuclear carbonitrides UC/sub x/N/sub 1-x/ and (U,Pu)C/sub 0/ /sub 8/N/sub 0/ /sub 2/

Journal Article · Thu Jun 01 00:00:00 EDT 1978 · Nucl. Sci. Eng.; (United States)

OSTI ID:6940681

Matsui, H; Bradbury, M H; Matzke, J

The self-diffusion of /sup 14/C and /sup 233/U in four different uranium carbonitrides, UC/sub x/N/sub 1-x/ with x = 0.67, 0.26, 0.24, and 0.18, and the diffusion of /sup 238/Pu in two sets of (U,Pu)C/sub 0/./sub 8/N/sub 0/./sub 2/ were measured. Replacing carbon by nitrogen decreased self-diffusion rates in both metal and non-metal lattices. The decrease was not linear with x; rather, a change in mechanism or bonding at around x approximately equal to 0.5 was indicated. The data are of importance for both fabrication and reactor operation of carbonitrides.

• Research Organization: Inst. for Transuranium Elements, Karlsruhe, Ger.
• OSTI ID: 6940681
• Journal Information: Nucl. Sci. Eng.; (United States), Vol. 66:3
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
21 SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS
CARBON 14
SELF-DIFFUSION
CARBONITRIDES
FABRICATION
PERMEABILITY
URANIUM 233
ACTINIDE ISOTOPES
ACTINIDE NUCLEI
ALPHA DECAY RADIOISOTOPES
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY RADIOISOTOPES
CARBON ISOTOPES
DIFFUSION
EVEN-EVEN NUCLEI
EVEN-ODD NUCLEI
HEAVY NUCLEI
ISOTOPES
LIGHT NUCLEI
NUCLEI
RADIOISOTOPES
URANIUM ISOTOPES
YEARS LIVING RADIOISOTOPES
360603* - Materials- Properties
360601 - Other Materials- Preparation & Manufacture
210500 - Power Reactors
Breeding
210300 - Power Reactors
Nonbreeding
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