首页|On the high-temperature plasticity of ceria-doped zirconia nanostructured polycrystals
On the high-temperature plasticity of ceria-doped zirconia nanostructured polycrystals
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Ceria-zirconia ceramic alloys with the following molar composition: 0.12CeO_2-0.88ZrO_2 have been sintered by high-temperature annealing. Monolithic specimens haven been crept in compression at high temperatures. Creep experiments have been rationalized to an empirical constitutive equation which is consistent with a classical Ashby-Verrall creep regime. This result has been assessed through microstructural characterization of as-received and post-mortem specimens. A pure Ashby-Verrall creep is contrary to the conventional mechanism controlling creep in other zirconia alloys. A discussion on the explanation for such mechanism is outlined.
ceria-zirconiananomaterialsmechanical behaviour
S. de Bernardi-Martin、E. Zapata-Solvas、D. Gomez-Garcia、A. Dominguez-Rodriguez、F. J. Guzman-Vazquez、J. Gomez-Herrero
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Departamento de Fisica de la Materia Condensada, Universidad de Sevilla e Instituto de Ciencia de Materiales, USE-CSIC, Apartado 1065, 41080 Sevilla, Spain
Departamento de Fisica de la Materia Condensada, Universidad Autonoma de Madrid, Campus de Cantoblanco, 28049 Madrid, Spain
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Trans Tech Publications Ltd
