Cold sintering and electric characterization of ZnO-BaTiO3 composites
Autor(a) principal: | |
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Data de Publicação: | 2021 |
Outros Autores: | , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Cerâmica (São Paulo. Online) |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0366-69132021000100105 |
Resumo: | Abstract The sintering is an essential step in the processing of ceramics materials. A number of researchers have reported new techniques for sintering. However, in general, the process still demands high temperatures. This paper reports the results of the cold sintering of ZnO-BaTiO3 composites. The microstructural, structural, and electric properties of the composite were studied. We obtained high densities (>95%) for pure ZnO and for the composition with 10 wt% of BaTiO3 at a low temperature of sintering (250 °C/1 h). The increase of BaTiO3 content reduced the grain size and degraded the sinterability of ZnO. The crystalline structure was investigated by X-ray diffraction and confirmed the separation of the phases after the cold sintering. The BaTiO3 added in the composite reduced the values of conductivity, permittivity, and also the dielectric loss. |
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Cerâmica (São Paulo. Online) |
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|
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Cold sintering and electric characterization of ZnO-BaTiO3 compositesceramicscold sinteringimpedance spectroscopydielectricsAbstract The sintering is an essential step in the processing of ceramics materials. A number of researchers have reported new techniques for sintering. However, in general, the process still demands high temperatures. This paper reports the results of the cold sintering of ZnO-BaTiO3 composites. The microstructural, structural, and electric properties of the composite were studied. We obtained high densities (>95%) for pure ZnO and for the composition with 10 wt% of BaTiO3 at a low temperature of sintering (250 °C/1 h). The increase of BaTiO3 content reduced the grain size and degraded the sinterability of ZnO. The crystalline structure was investigated by X-ray diffraction and confirmed the separation of the phases after the cold sintering. The BaTiO3 added in the composite reduced the values of conductivity, permittivity, and also the dielectric loss.Associação Brasileira de Cerâmica2021-03-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0366-69132021000100105Cerâmica v.67 n.381 2021reponame:Cerâmica (São Paulo. Online)instname:Universidade de São Paulo (USP)instacron:USP10.1590/0366-69132021673813061info:eu-repo/semantics/openAccessCoutinho,L.Aredes,R. G.Antonelli,E.eng2021-02-05T00:00:00Zoai:scielo:S0366-69132021000100105Revistahttps://www.scielo.br/j/ce/PUBhttps://old.scielo.br/oai/scielo-oai.phpceram.abc@gmail.com||ceram.abc@gmail.com1678-45530366-6913opendoar:2021-02-05T00:00Cerâmica (São Paulo. Online) - Universidade de São Paulo (USP)false |
dc.title.none.fl_str_mv |
Cold sintering and electric characterization of ZnO-BaTiO3 composites |
title |
Cold sintering and electric characterization of ZnO-BaTiO3 composites |
spellingShingle |
Cold sintering and electric characterization of ZnO-BaTiO3 composites Coutinho,L. ceramics cold sintering impedance spectroscopy dielectrics |
title_short |
Cold sintering and electric characterization of ZnO-BaTiO3 composites |
title_full |
Cold sintering and electric characterization of ZnO-BaTiO3 composites |
title_fullStr |
Cold sintering and electric characterization of ZnO-BaTiO3 composites |
title_full_unstemmed |
Cold sintering and electric characterization of ZnO-BaTiO3 composites |
title_sort |
Cold sintering and electric characterization of ZnO-BaTiO3 composites |
author |
Coutinho,L. |
author_facet |
Coutinho,L. Aredes,R. G. Antonelli,E. |
author_role |
author |
author2 |
Aredes,R. G. Antonelli,E. |
author2_role |
author author |
dc.contributor.author.fl_str_mv |
Coutinho,L. Aredes,R. G. Antonelli,E. |
dc.subject.por.fl_str_mv |
ceramics cold sintering impedance spectroscopy dielectrics |
topic |
ceramics cold sintering impedance spectroscopy dielectrics |
description |
Abstract The sintering is an essential step in the processing of ceramics materials. A number of researchers have reported new techniques for sintering. However, in general, the process still demands high temperatures. This paper reports the results of the cold sintering of ZnO-BaTiO3 composites. The microstructural, structural, and electric properties of the composite were studied. We obtained high densities (>95%) for pure ZnO and for the composition with 10 wt% of BaTiO3 at a low temperature of sintering (250 °C/1 h). The increase of BaTiO3 content reduced the grain size and degraded the sinterability of ZnO. The crystalline structure was investigated by X-ray diffraction and confirmed the separation of the phases after the cold sintering. The BaTiO3 added in the composite reduced the values of conductivity, permittivity, and also the dielectric loss. |
publishDate |
2021 |
dc.date.none.fl_str_mv |
2021-03-01 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0366-69132021000100105 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0366-69132021000100105 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/0366-69132021673813061 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
text/html |
dc.publisher.none.fl_str_mv |
Associação Brasileira de Cerâmica |
publisher.none.fl_str_mv |
Associação Brasileira de Cerâmica |
dc.source.none.fl_str_mv |
Cerâmica v.67 n.381 2021 reponame:Cerâmica (São Paulo. Online) instname:Universidade de São Paulo (USP) instacron:USP |
instname_str |
Universidade de São Paulo (USP) |
instacron_str |
USP |
institution |
USP |
reponame_str |
Cerâmica (São Paulo. Online) |
collection |
Cerâmica (São Paulo. Online) |
repository.name.fl_str_mv |
Cerâmica (São Paulo. Online) - Universidade de São Paulo (USP) |
repository.mail.fl_str_mv |
ceram.abc@gmail.com||ceram.abc@gmail.com |
_version_ |
1748936784760274944 |