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Raman spectra analysis of ZrO 2 thermally grown on Zircaloy substrates irradiated with heavy ion: Effects of oxygen isotopic substitution

Ciszak, Clément and Mermoux, Michel and Gutierrez, Gaëlle and Leprêtre, Frédéric and Duriez, Christian and Popa, Ioana and Fayette, Laurent and Chevalier, Sébastien Raman spectra analysis of ZrO 2 thermally grown on Zircaloy substrates irradiated with heavy ion: Effects of oxygen isotopic substitution. (2019) Journal of Raman Spectroscopy, 50 (3). 425-435. ISSN 0377-0486

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Official URL: https://doi.org/10.1002/jrs.5513

Abstract

Recently, unusual Raman signals were observed in different works conducted on thin zirconia layers grown on zirconium alloys simulating in‐reactor materials after high fluence ion irradiation or for samples cut from fuel rods irradiated in nuclear plants. As such, these spectra clearly do not correspond to any known spectrum of a pure standard zirconia phase. Therefore, the analysis conducted in this paper aims to provide a better understanding of these peculiar Raman features. For that purpose, specific ion‐irradiated samples were analysed. In situ Raman spectroscopy was first used to follow the irradiation process. Then, samples were characterized using different excitation wavelengths. Finally, the effects of oxygen isotopic substitution were examined in details. Results are discussed in terms of disorder and size‐related effects.

Item Type:Article
HAL Id:hal-02105028
Audience (journal):International peer-reviewed journal
Uncontrolled Keywords:
Institution:French research institutions > Commissariat à l'Energie Atomique et aux énergies alternatives - CEA (FRANCE)
French research institutions > Centre National de la Recherche Scientifique - CNRS (FRANCE)
Other partners > Institut polytechnique de Grenoble (FRANCE)
French research institutions > Institut de Radioprotection et de Sûreté Nucléaire - IRSN (FRANCE)
Other partners > Université Grenoble Alpes - UGA (FRANCE)
Other partners > Université Bourgogne Franche-Comté - UBFC (FRANCE)
Other partners > Université de Savoie Mont Blanc - USMB (FRANCE)
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Deposited On:06 Apr 2021 09:49

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