Published January 1989
| Version v1
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Determination of defective SiC fraction and free uranium fraction in the HTGR fuel compacts
Creators
- 1. Japan Atomic Energy Research Inst., Tokai, Ibaraki. Tokai Research Establishment
Description
Free uranium fraction and defective SiC fraction in fuel compacts and coated fuel particles were determined. For determination of the free uranium in the fuel compacts, the nitric acid leaching after electric disintegration of the compacts was adopted. Defective SiC layer was detected by a burn-leach method where the particles were burnt in air and leached with nitric acid. The free uranium fractions were in order of 10-8 to 10-4. The defective SiC fractions were in order of 10-4 to 10-3. We found a correlation between the value of defective SiC fraction and the times of burn and leaching. (author)
Availability note (English)
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20049485.pdf
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Additional details
Publishing Information
- Imprint Pagination
- 15 p.
- Report number
- JAERI-M--88-265
INIS
- Country of Publication
- Japan
- Country of Input or Organization
- Japan
- INIS RN
- 20049485
- Subject category
- S21: SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS;
- Descriptors DEI
- COATED FUEL PARTICLES; ERRORS; FABRICATION; FUEL ELEMENT FAILURE; FUEL RODS; HTTR REACTOR; INSPECTION; LEACHING; NITRIC ACID; SILICON CARBIDES; URANIUM
- Descriptors DEC
- ACCIDENTS; ACTINIDES; CARBIDES; CARBON COMPOUNDS; DISSOLUTION; ELEMENTS; ENRICHED URANIUM REACTORS; EXPERIMENTAL REACTORS; FUEL ELEMENTS; FUEL PARTICLES; GAS COOLED REACTORS; GRAPHITE MODERATED REACTORS; HELIUM COOLED REACTORS; HTGR TYPE REACTORS; HYDROGEN COMPOUNDS; INORGANIC ACIDS; INORGANIC COMPOUNDS; METALS; NITROGEN COMPOUNDS; OXYGEN COMPOUNDS; REACTOR ACCIDENTS; REACTOR COMPONENTS; REACTORS; RESEARCH AND TEST REACTORS; SEPARATION PROCESSES; SILICON COMPOUNDS