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Comprehensive study of the effect of the irradiation temperature on the behavior of cubic zirconia

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Comprehensive study of the effect of the irradiation temperature on the behavior of cubic zirconia

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Título Comprehensive study of the effect of the irradiation temperature on the behavior of cubic zirconia
Autor Debelle, Aurélien
Channagiri, Jayanth
Thomé, Lionel
Decamps, Brigitte
Boulle, Alexandre
Moll, Sandra
Garrido, Frédérico
Behar, Moni
Jagielski, Jacek
Abstract Cubic zirconia single-crystals (yttria-stabilized zirconia (YSZ)) have been irradiated with 4MeV Au²+ ions in a broad fluence range (namely from 5 1012 to 2 1016 cm-²) and at five temperatures: 80, 300, 573, 773, and 1073 K. Irradiated samples have been characterized by Rutherford backscattering spectroscopy in channeling mode, X-ray diffraction and transmission electron microscopy techniques in order to determine the disordering kinetics. All experimental results show that, whatever is the irradiation temperature, the damage build-up follows a multi-step process. In addition, the disorder level at high fluence is very similar for all temperatures. Thus, no enhanced dynamic annealing process is observed. On the other hand, transitions in the damage accumulation process occur earlier in fluence with increasing temperature. It is shown that temperature as low as 573K is sufficient to accelerate the disordering process in ion-irradiated YSZ.
Contido em Journal of applied physics. New York. Vol. 115, no. 18 (May 2014), 183504, 5 p.
Assunto Cerâmica
Compostos de ítrio
Compostos de zirconio
Efeitos de feixe iônico
Microestrutura cristalina
Microscopia eletronica de transmissao
Retroespalhamento rutherford
Origem Estrangeiro
Tipo Artigo de periódico
URI http://hdl.handle.net/10183/107856
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