Mechanical behaviour of yttria tetragonal zirconia polycrystalline nanoceramics: dependence on the glassy phase content

Nanocrystalline yttria tetragonal zirconia polycrystals (YTZP) with different amounts of an amorphous phase have been deformed at moderate temperature (1150 °C) and at constant strain rates. The aim of this work was the study of the influence of that glassy phase on the mechanical response of these...

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Bibliographic Details
Published in:Journal of the European Ceramic Society 2002, Vol.22 (14), p.2603-2607
Main Authors: Lorenzo-Martı́n, C., Flores-Vázquez, J.A., Gómez-Garcı́a, D., Muñoz-Bernabé, A., Domı́nguez-Rodrı́guez, A., XueMing, D., Gómez-Herrero, J.
Format: Article
Language:English
Subjects:
Applied sciences
Building materials. Ceramics. Glasses
Ceramic industries
Chemical industry and chemicals
Exact sciences and technology
Glassy-phase
Plastic deformation
Structural ceramics
Technical ceramics
YTZP nanocrystals
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Summary:Nanocrystalline yttria tetragonal zirconia polycrystals (YTZP) with different amounts of an amorphous phase have been deformed at moderate temperature (1150 °C) and at constant strain rates. The aim of this work was the study of the influence of that glassy phase on the mechanical response of these nanocrystals. Transmission electron microscopy (TEM) analysis and atomic force microscopy (AFM) pictures of the deformed and as-received samples have been carried out in order to determine the grain size distribution and clarify the possible deformation mechanisms.
ISSN:0955-2219
1873-619X
DOI:10.1016/S0955-2219(02)00122-X