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Journal articles
Extended defect change in UO2 during in situ TEM annealing
Claire Onofri
C. Sabathier
C. Baumier
1
C. Bachelet
1
D. Drouan
M. Gérardin
Marc Legros
2, 3
3
CEMES-PPM - Physique de la Plasticité et Métallurgie
CEMES - Centre d'élaboration de matériaux et d'études structurales
D. Drouan
Author
M. Gérardin
Author
Marc Legros 2, 3
Author IdHAL : marc-legros ORCID : https://orcid.org/0000-0001-5830-0434
1
CSNSM - Centre de Sciences Nucléaires et de Sciences de la Matière (Bâtiments 104 et 108 91405 Orsay Campus - France)
- UP11 - Université Paris-Sud - Paris 11 (Bâtiment 300 - 91405 Orsay cedex - France)
- IN2P3 - Institut National de Physique Nucléaire et de Physique des Particules du CNRS (France)
- CNRS - Centre National de la Recherche Scientifique : UMR8609 (France)
2
CEMES - Centre d'élaboration de matériaux et d'études structurales (29 Rue Jeanne Marvig - BP 94347 31055 TOULOUSE CEDEX 4
- France)
- INSA Toulouse - Institut National des Sciences Appliquées - Toulouse (135, avenue de Rangueil - 31077 Toulouse cedex 4 - France)
- ICT-FR 2599 - Institut de Chimie de Toulouse (118 Route de Narbonne 31062 Toulouse cédex 9 - France)
- IRD - Institut de Recherche pour le Développement (Siège Le Sextant 44, bd de Dunkerque CS 90009 13572 Marseille cedex 02 - France)
- UT3 - Université Toulouse III - Paul Sabatier (118 route de Narbonne - 31062 Toulouse - France)
- Université Fédérale Toulouse Midi-Pyrénées (41 Allée Jules Guesde, 31000 Toulouse - France)
- CNRS - Centre National de la Recherche Scientifique : UAR2599 / FR2599 (France)
- Toulouse INP - Institut National Polytechnique (Toulouse) (France)
- Université Fédérale Toulouse Midi-Pyrénées (41 Allée Jules Guesde, 31000 Toulouse - France)
- UT3 - Université Toulouse III - Paul Sabatier (118 route de Narbonne - 31062 Toulouse - France)
- Université Fédérale Toulouse Midi-Pyrénées (41 Allée Jules Guesde, 31000 Toulouse - France)
- CNRS - Centre National de la Recherche Scientifique : UPR8011 (France)
3
CEMES-PPM - Physique de la Plasticité et Métallurgie (CEMES 29 rue Jeanne Marvig, BP 94347, F-31055 Toulouse Cedex 4 - France)
- CEMES - Centre d'élaboration de matériaux et d'études structurales (29 Rue Jeanne Marvig - BP 94347 31055 TOULOUSE CEDEX 4
- France)
- INSA Toulouse - Institut National des Sciences Appliquées - Toulouse (135, avenue de Rangueil - 31077 Toulouse cedex 4 - France)
- ICT-FR 2599 - Institut de Chimie de Toulouse (118 Route de Narbonne 31062 Toulouse cédex 9 - France)
- IRD - Institut de Recherche pour le Développement (Siège Le Sextant 44, bd de Dunkerque CS 90009 13572 Marseille cedex 02 - France)
- UT3 - Université Toulouse III - Paul Sabatier (118 route de Narbonne - 31062 Toulouse - France)
- Université Fédérale Toulouse Midi-Pyrénées (41 Allée Jules Guesde, 31000 Toulouse - France)
- CNRS - Centre National de la Recherche Scientifique : UAR2599 / FR2599 (France)
- Toulouse INP - Institut National Polytechnique (Toulouse) (France)
- Université Fédérale Toulouse Midi-Pyrénées (41 Allée Jules Guesde, 31000 Toulouse - France)
- UT3 - Université Toulouse III - Paul Sabatier (118 route de Narbonne - 31062 Toulouse - France)
- Université Fédérale Toulouse Midi-Pyrénées (41 Allée Jules Guesde, 31000 Toulouse - France)
- CNRS - Centre National de la Recherche Scientifique : UPR8011 (France)
Abstract : Predicting the nuclear fuel microstructure at each moment of its irradiation cycle (nominal, power transient, accidental conditions) is a significant nuclear safety issue. For that, it is necessary to understand the impact of irradiation parameters on the microstructure. This study provides insight about the temperature effect on dislocations. In situ thermal annealing up to 1400°C on pre-irradiated polycrystalline UO2 thin foils was performed inside a TEM for the first time. The aim of the current study is to establish the kinetic and the mechanisms of thermal recovery of extended defects induced by irradiation. Whatever the initial irradiation conditions, extended defect recovery was observed around 1000-1100°C, in good agreement with literature data. Dislocation line disappear mainly by climb and dislocation loops move by pencil glide along the <110> Burger vector directions. Defect growth by coalescence of dislocation loops is also observed.
Document type :
Journal articles
Domain :
Engineering Sciences [physics] / Mechanics [physics.med-ph] / Mechanics of materials [physics.class-ph]Engineering Sciences [physics] / Mechanics [physics.med-ph] / Mechanical engineering [physics.class-ph]
Complete list of metadata
https://hal.archives-ouvertes.fr/hal-03089744
Contributor : Marc Legros <>
Submitted on : Monday, December 28, 2020 - 6:18:39 PM
Last modification on : Wednesday, April 7, 2021 - 11:00:03 AM
Contributor : Marc Legros <>
Submitted on : Monday, December 28, 2020 - 6:18:39 PM
Last modification on : Wednesday, April 7, 2021 - 11:00:03 AM
Identifiers
- HAL Id : hal-03089744, version 1
- DOI : 10.1016/j.actamat.2020.06.038
- INSPIRE : 1824202
Collections
UNIV-TLSE3 | CEMES | PPM | INSA-TOULOUSE | CNRS | INSA-GROUPE | CSNSM | IN2P3
Citation
Claire Onofri, C. Sabathier, C. Baumier, C. Bachelet, D. Drouan, et al.. Extended defect change in UO2 during in situ TEM annealing. Acta Materialia, Elsevier, 2020, 196, pp.240-251. ⟨10.1016/j.actamat.2020.06.038⟩. ⟨hal-03089744⟩
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