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dc.contributor.authorFreitas, Antonio Evangelista de-
dc.contributor.authorManhabosco, Taíse Matte-
dc.contributor.authorBatista, Ronaldo Junio Campos-
dc.contributor.authorRêgo Segundo, Alan Kardek-
dc.contributor.authorAraujo, Humberto Xavier de-
dc.contributor.authorAraujo, Fernando Gabriel da Silva-
dc.contributor.authorCosta, Adilson Rodrigues da-
dc.identifier.citationFREITAS, A. E. de et al. Development and characterization of titanium dioxide ceramic substrates with high dielectric permittivities. Materials, v. 13, n. 2, p. 386, 2020. Disponível em: <>. Acesso em: 10 mar. 2020.pt_BR
dc.description.abstractTitanium dioxide substrates have been synthesized by means of solid-state reactions with sintering temperatures varying from 1150 ◦C up to 1350 ◦C. X-ray diffraction and scanning electron microscopy (SEM) where employed to investigate the crystal structure, grain size and porosity of the resulting samples. The obtained ceramics are tetragonal (rutile phase) with average grain sizes varying from 2.94 µm up to 5.81 µm. The average grain size of samples increases with increasing temperature, while the porosity decreases. The effect of microstructure on the dielectric properties has been also studied. The reduction of porosity of samples significantly improves the dielectric parameters (relative dielectric permittivity and loss tangent) in comparison to those of commercial substrates, indicating that the obtained ceramic substrates could be useful in the miniaturization of telecommunication devices.pt_BR
dc.subjectSolid state sinteringpt_BR
dc.titleDevelopment and characterization of titanium dioxide ceramic substrates with high dielectric permittivities.pt_BR
dc.typeArtigo publicado em periodicopt_BR
dc.rights.licenseThis article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license ( Fonte: o próprio artigo.pt_BR
Appears in Collections:DEMET - Artigos publicados em periódicos

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