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Effect of Microwave-Assisted Synthesis and Sintering of Lead-Free KNL-NTS Ceramics

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Effect of Microwave-Assisted Synthesis and Sintering of Lead-Free KNL-NTS Ceramics

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dc.contributor.author Lagunas-Chavarría, Anggel es_ES
dc.contributor.author Navarro-Rojero, María Guadalupe es_ES
dc.contributor.author Salvador Moya, Mª Dolores es_ES
dc.contributor.author Benavente Martínez, Rut es_ES
dc.contributor.author Catalá Civera, José Manuel es_ES
dc.contributor.author Borrell Tomás, María Amparo es_ES
dc.date.accessioned 2023-10-25T18:02:50Z
dc.date.available 2023-10-25T18:02:50Z
dc.date.issued 2022-06 es_ES
dc.identifier.uri http://hdl.handle.net/10251/198818
dc.description.abstract [EN] Lead-free piezoelectric powders (K0.44Na0.52Li0.04)(Nb0.82Ta0.10Sb0.04)O-3 were obtained by conventional and microwave-assisted reactive heating. Firstly, the synthesis of the material was carried out following the mixed oxide route and employing both traditional methods and microwave technology. Thermogravimetry, X-ray diffraction, field emission scanning electron microscopy and electrical properties analyses were evaluated. X-ray diffraction of the powders calcined by the microwave process shows the formation of perovskite structure with orthorhombic geometry, but it is possible to observe the presence of other phases. The presence of the secondary phases found can have a great influence on the heating rate during the synthesis on which the kinetics of the reaction of formation of the piezoelectric compound depend. The calcined powder was sintered at different temperatures by conventional and non-conventional processes. The microstructure of the ceramics sintered by microwave at 1050 degrees C for 10 min shows perovskite cubes with regular geometry, of size close to 2-5 p.m. However, the observed porosity (similar to 8%), the presence of liquid phase and secondary phases in the microstructure of the microwave sintered materials lead to a decrease of the piezoelectric constant. The highest d 33 value of 146 pC/N was obtained for samples obtained by conventional at 1100 degrees C 2 h compared to samples sintered by microwave at 1050 degrees C 10 min (similar to 15 pC/N). es_ES
dc.description.sponsorship This research was funded by the projects of the Spanish Ministry of Science and Innovation: RTI2018-099033-B-C32 and RYC-2016-20915, and Generalitat Valenciana (BEST/2021/084, BEST/2021/082). es_ES
dc.language Inglés es_ES
dc.publisher MDPI AG es_ES
dc.relation.ispartof Materials es_ES
dc.rights Reconocimiento (by) es_ES
dc.subject KNL-NTS ceramics es_ES
dc.subject Synthesis es_ES
dc.subject Calcination es_ES
dc.subject Microwave processing es_ES
dc.subject Piezoelectric properties es_ES
dc.subject.classification CIENCIA DE LOS MATERIALES E INGENIERIA METALURGICA es_ES
dc.subject.classification TEORÍA DE LA SEÑAL Y COMUNICACIONES es_ES
dc.title Effect of Microwave-Assisted Synthesis and Sintering of Lead-Free KNL-NTS Ceramics es_ES
dc.type Artículo es_ES
dc.identifier.doi 10.3390/ma15113773 es_ES
dc.relation.projectID info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/RTI2018-099033-B-C32/ES/PIEZAS Y RECUBRIMIENTOS CERAMICOS AVANZADOS DE ELEVADAS PRESTACIONES TERMICAS Y MECANICAS A PARTIR DE DISOLUCIONES Y SUSPENSIONES PRECURSORAS/ es_ES
dc.relation.projectID info:eu-repo/grantAgreement/AGENCIA ESTATAL DE INVESTIGACION//RYC-2016-20915//AYUDA CONTRATO RAMON Y CAJAL-BORRELL TOMAS/ es_ES
dc.relation.projectID info:eu-repo/grantAgreement/GVA//BEST%2F2021%2F084/ es_ES
dc.relation.projectID info:eu-repo/grantAgreement/GVA//BEST%2F2021%2F082/ es_ES
dc.rights.accessRights Abierto es_ES
dc.contributor.affiliation Universitat Politècnica de València. Escuela Técnica Superior de Ingenieros de Telecomunicación - Escola Tècnica Superior d'Enginyers de Telecomunicació es_ES
dc.contributor.affiliation Universitat Politècnica de València. Escuela Técnica Superior de Ingenieros Industriales - Escola Tècnica Superior d'Enginyers Industrials es_ES
dc.description.bibliographicCitation Lagunas-Chavarría, A.; Navarro-Rojero, MG.; Salvador Moya, MD.; Benavente Martínez, R.; Catalá Civera, JM.; Borrell Tomás, MA. (2022). Effect of Microwave-Assisted Synthesis and Sintering of Lead-Free KNL-NTS Ceramics. Materials. 15(11):1-12. https://doi.org/10.3390/ma15113773 es_ES
dc.description.accrualMethod S es_ES
dc.relation.publisherversion https://doi.org/10.3390/ma15113773 es_ES
dc.description.upvformatpinicio 1 es_ES
dc.description.upvformatpfin 12 es_ES
dc.type.version info:eu-repo/semantics/publishedVersion es_ES
dc.description.volume 15 es_ES
dc.description.issue 11 es_ES
dc.identifier.eissn 1996-1944 es_ES
dc.identifier.pmid 35683078 es_ES
dc.identifier.pmcid PMC9181678 es_ES
dc.relation.pasarela S\465822 es_ES
dc.contributor.funder Generalitat Valenciana es_ES
dc.contributor.funder AGENCIA ESTATAL DE INVESTIGACION es_ES
upv.costeAPC 1636,61 es_ES


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