0570735 - FZÚ 2024 RIV NL eng J - Journal Article
Kratochvílová, Irena - Celbová, Lucie - Ashcheulov, Petr - Kopeček, Jaromír - Klimša, Ladislav - de Prado, Esther - Aubrechtová Dragounová, Kateřina - Luštinec, Jakub - Macák, J. - Sajdl, P. - Škoda, R. - Bulíř, Jiří
Polycrystalline diamond and magnetron sputtered chromium as a double coating for accident-tolerant nuclear fuel tubes.
Journal of Nuclear Materials. Roč. 578, May (2023), č. článku 154333. ISSN 0022-3115. E-ISSN 1873-4820
R&D Projects: GA MŠMT(CZ) EF16_019/0000760; GA TA ČR TK02030069
Grant - others:OP VVV - SOLID21(XE) CZ.02.1.01/0.0/0.0/16_019/0000760
Research Infrastructure: CzechNanoLab II - 90251
Institutional support: RVO:68378271
Keywords : polycrystalline diamond coating * Cr magnetron sputtering * nuclear fuel tubes * hot steam corrosion
OECD category: Materials engineering
Impact factor: 2.8, year: 2023 ; AIS: 0.59, rok: 2023
Method of publishing: Limited access
Result website:
https://doi.org/10.1016/j.jnucmat.2023.154333DOI: https://doi.org/10.1016/j.jnucmat.2023.154333

Controlling the hot steam corrosion of nuclear fuel tubes is crucial for power plant efficiency and safety. We demonstrate an effective method of protecting ZIRLO ® (ZIRLO) fuel tubes against corrosion at accident temperatures in a water-cooled nuclear reactor environment. The tubes surfaces were coated by double layers consisting of the polycrystalline diamond (PCD) and magnetron-sputtered Cr. Coated and bare ZIRLO tubes were subjected to hot steam tests for 30 min at 900 °C followed by 40 min at 1000 °C. Surprisingly, Cr and PCD double layers ability to protect ZIRLO fuel tubes against hot steam corrosion strongly depends on the order of the layers in coatings.

Permanent Link: https://hdl.handle.net/11104/0342072