Published May 1999
| Version v1
Report
Rim structure formation of large-grained UO2 fuels irradiated in the Halden heavy water reactor
Description
Irradiation-induced fuel microstructural evolution of the sub-divided grain structure, or rim structure, of large-grained UO2 pellets has been examined through detailed PIEs by OM, SEM, TEM and EPMA. Besides standard grain size pellets with a grain size range of 9-12 μm, two types of undoped and alumino-silicate doped large-grained pellets with a range of 37-63 μm were irradiated in the Halden heavy water reactor to rod average burnups of 25-75 GWd/t The effect of grain size on the rim structure formation was quantitatively evaluated in terms of the average Xe depression in the pellet outside region measured by EPMA, based on its lower sensitivity for Xe enclosed in the coarsened rim bubbles (author) (ml)
Additional details
Publishing Information
- Imprint Title
- High burn-up fuel performance, safety and reliability and degradation of in-core materials and water chemistry effects and man-machine systems research
- Imprint Pagination
- vp.
- Journal Page Range
- p. 06
- Report number
- HPR--351-V1
Conference
- Title
- Enlarged HPG meeting on high burn-up fuel performance, safety and reliability and degradation of in-core materials and water chemistry effects and man-machine systems research
- Dates
- 24-29 May 1999
- Place
- Loen (Norway)
INIS
- Country of Publication
- Norway
- Country of Input or Organization
- Norway
- INIS RN
- 38108735
- Subject category
- S21: SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS;
- Resource subtype / Literary indicator
- Non-conventional Literature, Conference, Numerical Data
- Descriptors DEI
- BURNUP; EXPERIMENTAL DATA; FISSION PRODUCT RELEASE; FUEL PELLETS; GRAIN BOUNDARIES; GRAIN GROWTH; GRAIN SIZE; HBWR REACTOR; IRRADIATION; NUCLEAR FUELS; RECRYSTALLIZATION; STRUCTURE FUNCTIONS; SWELLING; URANIUM OXIDES; WATER COOLED REACTORS
- Descriptors DEC
- ACTINIDE COMPOUNDS; BHWR TYPE REACTORS; CHALCOGENIDES; DATA; DEFORMATION; ENERGY SOURCES; ENRICHED URANIUM REACTORS; EXPERIMENTAL REACTORS; FUELS; FUNCTIONS; HEAVY WATER COOLED REACTORS; HEAVY WATER MODERATED REACTORS; INFORMATION; MATERIALS; MICROSTRUCTURE; NUMERICAL DATA; OXIDES; OXYGEN COMPOUNDS; PELLETS; POWER REACTORS; REACTOR MATERIALS; REACTORS; RESEARCH AND TEST REACTORS; SIZE; TANK TYPE REACTORS; THERMAL REACTORS; URANIUM COMPOUNDS
Optional Information
- Notes
- 24 refs., 26 figs., 3 tabs