| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 10629567 | Journal of the European Ceramic Society | 2015 | 9 Pages |
Abstract
Fully dense 3Â mol% Y2O3-ZrO2 (3YTZP) composites with low single wall carbon nanotube content (0.5, 1 and 1.5Â vol% SWNT) were prepared by colloidal processing and spark plasma sintering (SPS). SWNT were distributed at ceramic grain boundaries and also into agglomerates. Characterization of SWNT agglomerates indicated that increase in SWNT vol% does not imply an increase in agglomeration. SWNT agglomerate density was related to the evolution of hardness and fracture toughness with SWNT vol%. Electrical properties of the composites were characterized in a wide temperature range, and percolation threshold was estimated. A model allowing separation of the individual SWNT bundles contribution to resistance from the resistance due to junctions between bundles was proposed for composites with a percolating SWNT network.
Related Topics
Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
R. Poyato, J. MacÃas-Delgado, A. GarcÃa-Valenzuela, Á. Gallardo-López, A. Morales-RodrÃguez, A. Muñoz, A. DomÃnguez-RodrÃguez,