Irradiation effects on the fracture properties of UO2 fuels studied by micro-mechanical testing
| Autor: | Sylvain Meille, Cyril Langlois, Isabelle Zacharie-Aubrun, Ronan Henry, Thierry Blay, Smail Chalal, Nicolas Tarisien, Jean-Marie Gatt, Xavière Iltis |
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| Přispěvatelé: | Matériaux, ingénierie et science [Villeurbanne] (MATEIS), Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National des Sciences Appliquées de Lyon (INSA Lyon), Université de Lyon-Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-Centre National de la Recherche Scientifique (CNRS), Département d'Etudes des Combustibles (DEC), CEA-Direction des Energies (ex-Direction de l'Energie Nucléaire) (CEA-DES (ex-DEN)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA), Commissariat à l'énergie atomique et aux énergies alternatives (CEA), Carl Zeiss SMT AG, Carl Zeiss, Oberkochen |
| Rok vydání: | 2020 |
| Předmět: |
[PHYS]Physics [physics]
Nuclear and High Energy Physics Materials science Drop (liquid) 02 engineering and technology Bending 021001 nanoscience & nanotechnology 01 natural sciences Focused ion beam 010305 fluids & plasmas Stress (mechanics) Fracture toughness Nuclear Energy and Engineering 0103 physical sciences Fracture (geology) General Materials Science Grain boundary Irradiation Composite material 0210 nano-technology |
| Zdroj: | Journal of Nuclear Materials Journal of Nuclear Materials, 2020, 536, ⟨10.1016/j.jnucmat.2020.152179⟩ |
| ISSN: | 0022-3115 |
| DOI: | 10.1016/j.jnucmat.2020.152179 |
| Popis: | Micro-cantilevers were prepared with a dual beam microscope SEM/FIB on different fresh and irradiated Pressurized Water Reactor (PWR) UO2 fuels. Their local fracture properties (fracture toughness and fracture stress) and Young's moduli were determined by bending tests, carried out with a nano-indenter in situ of a SEM chamber. Different microstructural features were characterized by testing three crystalline planes into single grains and grain boundaries. Inside grains, irradiation has a limited effect on the measured properties, whereas irradiation leads to a clear drop of the grain boundary resistance, related to the presence of irradiation defects. |
| Databáze: | OpenAIRE |
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