dc.creator | Gallardo López, Ángela María | es |
dc.creator | Morales Rodríguez, Ana | es |
dc.creator | Vega Padillo, Jesús | es |
dc.creator | Poyato Galán, Rosalía | es |
dc.creator | Muñoz Bernabé, Antonio | es |
dc.creator | Domínguez Rodríguez, Arturo | es |
dc.date.accessioned | 2023-12-27T10:00:47Z | |
dc.date.available | 2023-12-27T10:00:47Z | |
dc.date.issued | 2016-10 | |
dc.identifier.citation | Gallardo López, Á.M., Morales Rodríguez, A., Vega Padillo, J., Poyato Galán, R., Muñoz Bernabé, A. y Domínguez Rodríguez, A. (2016). Enhanced carbon nanotube dispersion in 3YTZP/SWNTs composites and its effect on room temperature mechanical and electrical properties. Journal of Alloys and Compounds, 682, 70-79. https://doi.org/10.1016/j.jallcom.2016.04.262. | |
dc.identifier.issn | 0925-8388 | es |
dc.identifier.issn | 1873-4669 | es |
dc.identifier.uri | https://hdl.handle.net/11441/152817 | |
dc.description.abstract | In this work, several modifications of the colloidal processing technique and spark plasma sintering (SPS)
to prepare yttria tetragonal zirconia composites (YTZP) with single walled carbon nanotubes (SWNT)
have been tested with the aim of eliminating SWNT agglomerates. These modifications include high
versus low energy ultrasonic agitation during colloidal processing, lyophilization of the 3YTZP/SWNT
slurry and electrical insulation during sintering of the composites. Semi-quantitative microstructural
characterization of the carbon nanotube distribution in the sintered composites showed that high energy
ultrasonic agitation reduces drastically agglomerate size. Lyophilization of the mixed suspensions avoids
SWNT bundle size growth. Combination of both produces an enhanced carbon nanotube network distribution along the grain boundaries (GB) due to the absence of carbon nanotube agglomerates and to a
limited SWNT bundle size. This results in an increase of the real SWNT content in the GBs up to nominal
SWNT content and therefore an enhanced SWNT efficiency in the composites. The agglomerate-free
highly-dispersed composites exhibit a decrease in density together with grain size refinement, a
decrease in room temperature hardness, an increase in flexural strength and a most significant increase
in room temperature electrical conductivity. Improved SWNT distribution also lowers electrical percolation threshold to a very low level in SWNT ceramic composites, <1 vol% SWNT, | es |
dc.description.sponsorship | Ministerio de Economía y Competitividad español - MAT2012- 34217 | es |
dc.description.sponsorship | Junta de Andalucía - P12-FQM-1079 | es |
dc.format | application/pdf | es |
dc.format.extent | 10 p. | es |
dc.language.iso | eng | es |
dc.publisher | Elsevier | es |
dc.relation.ispartof | Journal of Alloys and Compounds, 682, 70-79. | |
dc.rights | Attribution-NonCommercial-NoDerivatives 4.0 Internacional | * |
dc.rights.uri | http://creativecommons.org/licenses/by-nc-nd/4.0/ | * |
dc.subject | Ceramics | es |
dc.subject | Composite materials | es |
dc.subject | Nanostructured materials | es |
dc.subject | Mechanical properties | es |
dc.subject | Electrical transport | es |
dc.subject | Scanning electron microscopy | es |
dc.subject | SEM | es |
dc.title | Enhanced carbon nanotube dispersion in 3YTZP/SWNTs composites and its effect on room temperature mechanical and electrical properties | es |
dc.type | info:eu-repo/semantics/article | es |
dcterms.identifier | https://ror.org/03yxnpp24 | |
dc.type.version | info:eu-repo/semantics/acceptedVersion | es |
dc.rights.accessRights | info:eu-repo/semantics/openAccess | es |
dc.contributor.affiliation | Universidad de Sevilla. Departamento de Física de la Materia Condensada | es |
dc.relation.projectID | MAT2012- 34217 | es |
dc.relation.projectID | P12-FQM-1079 | es |
dc.relation.publisherversion | https://doi.org/10.1016/j.jallcom.2016.04.262 | es |
dc.identifier.doi | 10.1016/j.jallcom.2016.04.262 | es |
dc.journaltitle | Journal of Alloys and Compounds | es |
dc.publication.volumen | 682 | es |
dc.publication.initialPage | 70 | es |
dc.publication.endPage | 79 | es |
dc.contributor.funder | Ministerio de Economía y Competitividad (MINECO). España | es |
dc.contributor.funder | Junta de Andalucía | es |