On the High-Temperature Plasticity of Ceria-Doped Zirconia Nanostructured Polycrystals
Ceria-zirconia ceramic alloys with the following molar composition: 0.12CeO2-0.88ZrO2 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 c...
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| Veröffentlicht in: | Key engineering materials 2010-01, Vol.423, p.61-66 |
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| creator | Gómez-Herrero, Julio Domínguez-Rodríguez, Arturo Gómez-García, D. Zapata-Solvas, E. Guzmán-Vázquez, F.J. de Bernardi-Martín, S. |
| description | Ceria-zirconia ceramic alloys with the following molar composition: 0.12CeO2-0.88ZrO2 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. |
| doi_str_mv | 10.4028/www.scientific.net/KEM.423.61 |
| format | Article |
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| title | On the High-Temperature Plasticity of Ceria-Doped Zirconia Nanostructured Polycrystals |
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