1982
DOI: 10.1016/0022-3115(82)90330-0
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Performance-related characteristics of water reactor fuel

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Cited by 3 publications
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“…At any atmosphere configuration it is a strongly reducing environment allowing that the sintered fuel have a very high degree of stoichiometry. The hyper-stoichiometry of the fuel itself is a positive characteristic since it increases the cladding inner oxidation, but, on the other hand this "extra" oxide layer becomes a thermal barrier, which together with the intrinsic low thermal conductivity of UO 2 act in a negative way in the reactor core elevating the fuel's central temperature, which finally leads to a higher release of highly corrosive gaseous fission products [106]. A hyper-stoichiometric fuel also reduces the availability of cesium, which is a natural iodine catcher elevating the probability of stress corrosion cracking (SCC) and consequently also the predisposition for pellet cladding interaction (P CI) failures [12].…”
Section: O/u Ratiomentioning
confidence: 99%
“…At any atmosphere configuration it is a strongly reducing environment allowing that the sintered fuel have a very high degree of stoichiometry. The hyper-stoichiometry of the fuel itself is a positive characteristic since it increases the cladding inner oxidation, but, on the other hand this "extra" oxide layer becomes a thermal barrier, which together with the intrinsic low thermal conductivity of UO 2 act in a negative way in the reactor core elevating the fuel's central temperature, which finally leads to a higher release of highly corrosive gaseous fission products [106]. A hyper-stoichiometric fuel also reduces the availability of cesium, which is a natural iodine catcher elevating the probability of stress corrosion cracking (SCC) and consequently also the predisposition for pellet cladding interaction (P CI) failures [12].…”
Section: O/u Ratiomentioning
confidence: 99%