CHEMICAL-STATE OF LWR HIGH-POWER RODS UNDER IRRADIATION

被引：82
作者：
KLEYKAMP, H
机构：
[1] Kernforschungszentrum Karlsruhe, Institut für Material- und Festkörperforschung, 7500 Karlsruhe
来源：
JOURNAL OF NUCLEAR MATERIALS | 1979年 / 84卷 / 1-2期
关键词：
D O I：
10.1016/0022-3115(79)90154-5
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
A section of a high-power fuel rod irradiated in the KWO reactor to 4.3% burnup at a mean linear rating of 43 kW/m has been investigated by electronprobe microanalysis. The concentrations of the converted plutonium and the most important fission products dissolved and precipitated in the fuel are given as a function of the fuel radius. The radial xenon release is evaluated. The oxygen concentration profile in the zircaloy cladding is determined. The reaction layers at the inner cladding surface are apparently α-Zr(O) and a Cs-Zr-O phase. The radial dependence of the EOL fuel stoichiometry is calculated using the composition of metallic fission product precipitates, the oxidation state of steel impurities and the oxygen content of the α-Zr(O) phase, which results in a constant O/M = 2.00 over the whole fuel radius. © 1979.
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页码：109 / 117
页数：9
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