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dc.contributor.authorAlmeida, G. N.-
dc.contributor.authorSouza, Rodrigo Nunes de-
dc.contributor.authorLima, L. F. S.-
dc.contributor.authorMohallem, Nelcy Della Santina-
dc.contributor.authorSilva, Edson Paulo da-
dc.contributor.authorSilva, Alysson Martins Almeida-
dc.date.accessioned2024-07-26T10:58:55Z-
dc.date.available2024-07-26T10:58:55Z-
dc.date.issued2023-04-11-
dc.identifier.citationALMEIDA, G. N. et al. The influence of the synthesis method on the characteristics of BaTiO3. Materials, [S. l.], v. 16, n. 8, 3031, 2023. DOI: https://doi.org/10.3390/ma16083031. Disponível em: https://www.mdpi.com/1996-1944/16/8/3031. Acesso em: 09 jul. 2024.pt_BR
dc.identifier.urihttp://repositorio2.unb.br/jspui/handle/10482/49206-
dc.language.isoengpt_BR
dc.publisherMDPIpt_BR
dc.rightsAcesso Abertopt_BR
dc.titleThe influence of the synthesis method on the characteristics of BaTiO3pt_BR
dc.typeArtigopt_BR
dc.subject.keywordTitanato de báriopt_BR
dc.subject.keywordProcessos sol-gelpt_BR
dc.subject.keywordPropriedades elétricaspt_BR
dc.rights.license© 2023 by the authors. Submitted for possible open access publication under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/license s/by/4.0/).pt_BR
dc.identifier.doihttps://doi.org/10.3390/ma16083031pt_BR
dc.description.abstract1In this work, barium titanate powders were produced by sol-gel and sol-precipitation methods from metal alkoxides. In the sol-gel method, tetraisopropyl orthotitanate was mixed with 2-propanol, acetic acid and barium acetate and the gel samples obtained were calcined at 600 °C, 800 °C and 1000 °C. Through the sol-precipitation method, tetraisopropyl orthotitanate was mixed with acetic acid and deionized water and precipitated by addition of a concentrated solution of KOH. The products were calcined at various temperatures and the microstructural and dielectric properties of BaTiO3 prepared for the two processes were analyzed and compared. The result of these analyzes allowed to observe in the samples produced by the sol-gel method an increase in the tetragonal phase and the dielectric constant (15 – 50 at 20 kHz) with increasing temperature, while the sample obtained by sol precipitation was cubic. The presence of BaCO3 is more evident in the sample produced by sol-precipitation and the band gap of the products obtained did not show significant variation, changing the synthesis method (3.363 - 3.594 eV).pt_BR
dc.identifier.orcidhttps://orcid.org/0000-0002-6200-3253pt_BR
dc.identifier.orcidhttps://orcid.org/0000-0002-9094-4536pt_BR
dc.contributor.affiliationUniversity of Brasília, Faculty of Technology, Mechatronic Engineering Departmentpt_BR
dc.contributor.affiliationUniversity of Brasília, Faculty of Technology, Mechanical Engineering Departmentpt_BR
dc.contributor.affiliationFederal University of Minas Gerais, Chemistry Departmentpt_BR
dc.contributor.affiliationFederal University of Minas Gerais, Chemistry Departmentpt_BR
dc.contributor.affiliationUniversity of Brasília, Faculty of Technology, Mechanical Engineering Departmentpt_BR
dc.contributor.affiliationUniversity of Brasília, Faculty of Technology, Mechanical Engineering Departmentpt_BR
dc.description.unidadeFaculdade de Tecnologia (FT)pt_BR
dc.description.unidadeDepartamento de Engenharia Elétrica (FT ENE)pt_BR
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