Advanced characterization techniques for SiC and PyC coatings on high-temperature reactor fuel particles

Enhancing the safety of high-temperature reactors (HTRs) is based on the quality of the fuel particles, requiring good knowledge of the microstructure of the four-layer particles designed to retain the fission products during irradiation and under accidental conditions. This paper focuses on the int...

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Bibliographic Details
Published in:Journal of nuclear materials 2008-02, Vol.373 (1), p.150-156
Main Authors: Hélary, D., Dugne, O., Bourrat, X.
Format: Article
Language:English
Subjects:
Applied sciences
Controled nuclear fusion plants
Earth Sciences
Energy
Energy. Thermal use of fuels
Exact sciences and technology
Fission nuclear power plants
Fuels
Geochemistry
Geophysics
Installations for energy generation and conversion: thermal and electrical energy
Nuclear fuels
Sciences of the Universe
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Summary:Enhancing the safety of high-temperature reactors (HTRs) is based on the quality of the fuel particles, requiring good knowledge of the microstructure of the four-layer particles designed to retain the fission products during irradiation and under accidental conditions. This paper focuses on the intensive research work performed to characterize the micro- and nanostructure of each unirradiated layer (silicon carbide and pyrocarbon coatings). The analytic expertise developed in the 1970s has been recovered and innovative advanced characterization methods have been developed to improve the process parameters and to ensure the production reproducibility of coatings.
ISSN:0022-3115
1873-4820
DOI:10.1016/j.jnucmat.2007.05.041