Título:
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Stability of nanocrystalline spark plasma sintered 3Y-TZP
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Autor/a:
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Kiran Chitapalli, Ravi; Mestra Rodríguez, Álvaro Miguel; García Marro, Fernando; Yan, Haixue; Reece, Michel; Anglada Gomila, Marcos Juan
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Otros autores:
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Universitat Politècnica de Catalunya. Departament de Ciència dels Materials i Enginyeria Metal·lúrgica; Universitat Politècnica de Catalunya. CIEFMA - Centre d'Integritat Estructural, Micromecànica i Fiabilitat dels Materials |
Abstract:
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Spark plasma sintered 3Y-TZP has been investigated with respect to hydrothermal ageing and grinding. The sintering was performed between the temperatures of 1,100 and 1,600 °C for a soaking time of 5 minutes and the resulting materials were obtained with grain sizes between 65 to 800 nm and relative densities between 88.5 to 98.8%. Experiments on hydrothermal ageing in water vapour at 131 °C, 2 bars during 60 hours shows that phase stability is retained, elastic modulus and hardness of near
surface region measured by nanoindentation does not change in fine grain (<200 nm)
materials, in spite of porosity. In ground specimens, very small amount of transformation was found for all grain sizes studied. |
Abstract:
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Peer Reviewed |
Materia(s):
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-Àrees temàtiques de la UPC::Enginyeria dels materials::Metal·lúrgia -3Y-TZP materials -Condensed matter -- Thermal properties -Hydrotermal degradation -Zirconia doped with yttria -Zircó |
Derechos:
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Tipo de documento:
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Artículo - Versión publicada Artículo |
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