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Nuclear Instruments and Methods in Physics Research Research Section B: Beam Interactions with Materials and Atoms 277 (2012) 14-17
Response of cubic zirconia irradiated with 4-MeV Au ions at high temperature: an X-ray diffraction study
A. Debelle1, L. Thomé1, Alexandre Boulle2, S. Moll1, F. Garrido1, L. Qasim1, P. Rosza1

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.
1 :  CSNSM - Centre de Spectrométrie Nucléaire et de Spectrométrie de Masse
2 :  SPCTS - Science des Procédés Céramiques et de Traitements de Surface
Axe 3 : organisation structurale multiéchelle des matériaux
Physique/Matière Condensée/Science des matériaux

Sciences de l'ingénieur/Matériaux
Ion irradiation – Strain – YSZ – Temperature – XRD