Chemical Vapor Transport of Iron by Iodine Liberated due to Radiolysis of Cesium Iodide

Michio Yamawaki, Mutsumi Hirai, Toshiaki Yoneoka, Masayoshi Kanno, Kenji Konashi

Research output: Contribution to journalArticle

Abstract

The cladding component chemical transport (CCCT) is one of the important modes of the fuel-cladding chemical interaction (FCCI) of LMFBR. In order to explain this phenomenon, a model based on the vapor phase chemical transport of cladding components by iodine was proposed by Johnson et al. and Calais et al. In this study, experimental work has been done to check whether such a mechanism can work due to the free iodine generated by the radiolysis of Csl vapor. As a result, it was confirmed that a significant amount of Fe can be transported via vapor phase from the Fe sheet heated at 430°C to the Mo plate heated at 720 or 800°C. Preliminary comparisons between this study and the in-pile irradiation tests have been made. This result qualitatively supports the appropriateness of the model for the CCCT mechanism based on the vapor phase transport of cladding components by radiation-induced iodine.

Original languageEnglish
Pages (from-to)852-860
Number of pages9
Journaljournal of nuclear science and technology
Volume20
Issue number10
DOIs
Publication statusPublished - 1983 Jan

Keywords

  • FBR type reactors
  • cesium iodide
  • chemical vapor transport
  • cladding component chemical transport
  • electron bombardment
  • fuel-cladding interaction
  • iron
  • radiolysis

ASJC Scopus subject areas

  • Nuclear and High Energy Physics
  • Nuclear Energy and Engineering

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