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Brachet, Jean-Christophe; Idarraga-Trujillo, Isabel; Flem, Marion Le; Saux, Matthieu Le; Vandenberghe, Valérie; Urvoy, Stephane; Rouesne, Elodie; Guilbert, Thomas; Toffolon-Masclet, Caroline; Tupin, Marc; Phalippou, Christian; Lomello, Fernando; Schuster, Frédéric; Billard, Alain; Velisa, Gihan; Ducros, Cédric; Sanchette, Frédéric
Journal of nuclear materials, 04/2019, Letnik: 517Journal Article
Coatings with thicknesses between a few microns and ∼10 μm deposited on a Zircaloy-4 substrate have been studied with the objective to provide a significant reduction in the oxidation-induced embrittlement of the nuclear fuel cladding, especially in accidental conditions, such as LOss-of-Coolant-Accident (LOCA) conditions. This paper deals with the early studies carried out at CEA, several years before the Fukushima-Daiishi events, on different types of coatings obtained by a physical vapor deposition process. The studied coatings included ceramic, nitride and metallic multi-layered ones. The results of this screening analysis showed that the first generation of chromium-based coatings exhibited the most promising behavior: good compromise between oxidation resistance and adhesion to the metallic substrate, good fretting resistance and improved resistance to oxidation in steam at high temperature (Design Basis Accident LOCA conditions and slightly beyond). •Coated zirconium-based alloys are studied as enhanced accident tolerant nuclear fuel claddings for light water reactors.•Several types of PVD coatings, including ceramic nitride and metallic multi-layered materials, are studied.•Chromium coatings are chosen and further developed.•Encouraging results, showing improved behavior both in normal operating and upon DBA-LOCA and slightly beyond conditions.
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JCR | SNIP | JCR | SNIP | JCR | SNIP | JCR | SNIP |
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Vir: Osebne bibliografije
in: SICRIS
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