dc.creator | Poyato Galán, Rosalía | es |
dc.creator | Verdugo, Reyes | es |
dc.creator | Muñoz Ferreiro, Carmen | es |
dc.creator | Gallardo López, Ángela María | es |
dc.date.accessioned | 2022-01-18T15:50:16Z | |
dc.date.available | 2022-01-18T15:50:16Z | |
dc.date.issued | 2020 | |
dc.identifier.citation | Poyato Galán, R., Verdugo, R., Muñoz Ferreiro, C. y Gallardo López, A.M. (2020). Electrochemically exfoliated graphene-like nanosheets for use in ceramic nanocomposites. Materials, 13 (11), 2656. | |
dc.identifier.issn | 1996-1944 | es |
dc.identifier.uri | https://hdl.handle.net/11441/128960 | |
dc.description.abstract | In this work, the synthesis of graphene-like nanosheets (GNS) by an electrochemical exfoliation method, their microstructural characterization and their performance as fillers in a ceramic matrix composite have been assessed. To fabricate the composites, 3 mol % yttria tetragonal zirconia (3YTZP) powders with 1 vol % GNS were processed by planetary ball milling in tert-butanol to enhance the GNS distribution throughout the matrix, and densified by spark plasma sintering (SPS). According to a thorough Raman analysis and SEM observations, the electrochemically exfoliated GNS possessed less than 10 graphene layers and a lateral size lower than 1 μm. However, they contained amorphous carbon and vacancy-like defects. In contrast the GNS in the sintered composite exhibited enhanced quality with a lower number of defects, and they were wavy, semi-transparent and with very low thickness. The obtained nanocomposite was fully dense with a homogeneous distribution of GNS into the matrix. The Vickers hardness of the nanocomposite showed similar values to those of a monolithic 3YTZP ceramic sintered in the same conditions, and to the reported ones for a 3YTZP composite with the same content of commercial graphene nanosheets. | es |
dc.description.sponsorship | Ministerio de Ciencia, Innovación y Universidades PGC 2018-101377-B-100 | es |
dc.format | application/pdf | es |
dc.format.extent | 13 p. | es |
dc.language.iso | eng | es |
dc.publisher | Multidisciplinary Digital Publishing Institute (MDPI) | es |
dc.relation.ispartof | Materials, 13 (11), 2656. | |
dc.rights | Attribution-NonCommercial-NoDerivatives 4.0 Internacional | * |
dc.rights.uri | http://creativecommons.org/licenses/by-nc-nd/4.0/ | * |
dc.subject | 3YTZP | es |
dc.subject | Ceramic nanocomposites | es |
dc.subject | Electrochemical exfoliation method | es |
dc.subject | Electron microscopy | es |
dc.subject | Graphene | es |
dc.subject | Planetary ball milling | es |
dc.subject | Raman spectroscopy | es |
dc.subject | SPS | es |
dc.subject | Vickers indentations | es |
dc.title | Electrochemically exfoliated graphene-like nanosheets for use in ceramic nanocomposites | es |
dc.type | info:eu-repo/semantics/article | es |
dc.type.version | info:eu-repo/semantics/publishedVersion | 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 | PGC 2018-101377-B-100 | es |
dc.relation.publisherversion | https://doi.org/10.3390/ma13112656 | es |
dc.identifier.doi | 10.3390/ma13112656 | es |
dc.journaltitle | Materials | es |
dc.publication.volumen | 13 | es |
dc.publication.issue | 11 | es |
dc.publication.initialPage | 2656 | es |