Black zirconia-graphene nanocomposite produced by spark plasma sintering

Trabajo presentado a la 10th International Conference on Mechanics, Resource and Diagnostics of Materials and Structures (MRDMS), celebrada en Ekaterinburg (Rusia) del 16 al 20 de mayo de 2016.In this work, 3Y-TZP/graphene composites are prepared by Spark Plasma Sintering of zirconia-graphene oxide mixtures. Simultaneous sintering and in-situ reduction of graphene oxide opens a very interesting technological route for preparing this type of materials. The influence of graphene content on the electrical, mechanical and optical properties is studied. Graphene content as low as 0.29 vol% allows obtaining nanostructured black zirconia, but it has to be increased up to 1 vol% in order to reach electrical resistivity