Artículo
Graphene nanoplatelets for electrically conductive 3YTZP composites densified by pressureless sintering
Autor/es | López Pernía, Cristina
Gallardo López, Ángela María Morales Rodríguez, Ana Poyato Galán, Rosalía |
Departamento | Universidad de Sevilla. Departamento de Física de la Materia Condensada |
Fecha de publicación | 2019 |
Fecha de depósito | 2023-02-09 |
Publicado en |
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Resumen | 3 mol% yttria tetragonal zirconia polycrystalline (3YTZP) ceramic composites with 2.5, 5 and 10 vol% graphene nanoplatelets (GNP) were pressureless sintered in argon atmosphere between 1350 and 1450 °C. The effects of the ... 3 mol% yttria tetragonal zirconia polycrystalline (3YTZP) ceramic composites with 2.5, 5 and 10 vol% graphene nanoplatelets (GNP) were pressureless sintered in argon atmosphere between 1350 and 1450 °C. The effects of the GNP content and the sintering temperature on the densification, microstructure and electrical properties of the composites were investigated. An isotropic distribution of GNP surrounding ceramic regions was exhibited regardless the GNP content and sintering temperature used. Electrical conductivity values comparable to the ones of fully dense composites prepared by more complex techniques were obtained, even though full densification was not achieved. While the composite with 5 vol% GNP exhibited electrical anisotropy with a semiconductor-type behaviour, the composite with 10 vol% GNP showed an electrically isotropic metallic-type behaviour. |
Agencias financiadoras | Ministerio de Economía y Competitividad (MINECO). España |
Identificador del proyecto | MAT2015-67889-P |
Cita | López Pernía, C., Gallardo López, Á.M., Morales Rodríguez, A. y Poyato Galán, R. (2019). Graphene nanoplatelets for electrically conductive 3YTZP composites densified by pressureless sintering. Journal of the European Ceramic Society, 39 (14), 4435-4439. https://doi.org/10.1016/j.jeurceramsoc.2019.05.067. |
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Graphene nanoplatelets.pdf | 1.428Mb | [PDF] | Ver/ | |