Model for Fuel/Cladding Chemical Interaction

Kenji Konashi; Katsuichiro Kamimura; Yoji Yokouchi

doi:dx.doi.org/10.13182/NT86-A33771

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Home / Publications / Journals / Nuclear Technology / Volume 72 / Number 3

Model for Fuel/Cladding Chemical Interaction

Kenji Konashi, Katsuichiro Kamimura, Yoji Yokouchi

Nuclear Technology / Volume 72 / Number 3 / March 1986 / Pages 328-337

Technical Paper / Radiation Protection and Health Physics Practices and Experience in Operating Reactors Internationally / Nuclear Fuel / dx.doi.org/10.13182/NT86-A33771

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A kinetic model of fuel/cladding chemical interaction (FCCI) has been developed. By fitting the model to in-pile experimental data, a wastage correlation has been derived that predicts corrosion depth due to FCCI. The model can explain the temperature dependency of the corrosion depth observed in the in-pile experimental data. The model successfully predicts the high corrosion rate observed in out-of-pile simulation tests that employ fission products in cladding capsules.