| Thème(s) : |
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| Titre : |
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Response of cubic zirconia irradiated with 4-MeV Au ions at high temperature: an X-ray diffraction study |
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| Auteur : |
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A. Debelle1, L. Thomé1, Alexandre Boulle ( )2, S. Moll1, F. Garrido1, L. Qasim1, P. Rosza1 |
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| Laboratoire : |
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| équipe(s) de recherche : |
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Axe 3 : organisation structurale multiéchelle des matériaux
CSNSM PCI |
| Résumé : |
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Yttria-stabilized cubic zirconia single-crystals have been irradiated with 4-MeV Au2+ ions at fluences ranging from 1012 cm-2 to 2x1015 cm-2 and at three temperatures (room temperature, 500°C and 800°C). Evaluation of the irradiation-induced strain has been performed by the X-ray diffraction technique. It is found that, whatever the irradiation temperature, the elastic-strain build-up exhibits two steps. An increase of the (tensile) strain-level is observed in the first step. A drastic strain relaxation occurs at a transition fluence, which defines the beginning of the second step. Increasing the irradiation temperature induces a decrease of the strain level and a shift of the transition fluence towards low fluence. Both effects may be explained by an enhanced defect-clustering rate which occurs already at 500°C. |
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| Type de publication : |
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Articles dans des revues avec comité de lecture |
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Date de publication
ou d'écriture : |
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15/04/2012 |
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| Nom du périodique : |
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Nuclear Instruments and Methods in Physics Research Research Section B: Beam Interactions with Materials and Atoms |
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| Volume : |
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277 |
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| Page/Article : |
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14-17 |
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| Identifiant local : |
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CSNSM PCI |
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| Mot(s)-clé(s) : |
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Ion irradiation – Strain – YSZ – Temperature – XRD |
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