Improving usual and dielectric properties of ceramic high voltage insulators

Detalhes bibliográficos
Autor(a) principal: Roula,A.
Data de Publicação: 2009
Outros Autores: Boudeghdegh,K., Boufafa,N.
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=S0366-69132009000200014
Resumo: The optimization of the formulation (nature and content of chemical components) and the technical parameters of the shaping-up process of ceramic insulators (in replacement of those in glass) are the objectives of this study. The decontamination of SiO2 (solid-liquid extraction of Fe xOy) and the increase of both BaO and ZrO2 amounts (while Na2O is partially eliminated) and the firing temperature allowed a significant increase of all the phys-mechanical and insulating properties at the commercial frequency 50-60 Hz. Samples with 15 mm diameter and 2 mm thickness and others for mechanical properties were needed. The characterization concerned Ba-Zr(Al xSi1-x)O3 ceramic samples. By data computing of the test results, a new "computed" formulation (Ba-stabilized and Zr doped mullite) showed excellent phys-mechanical (density, viscosity, flexural and traction strengths) and insulating properties (transversal resistivity, dielectric strength).
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spelling Improving usual and dielectric properties of ceramic high voltage insulatorsdielectric ceramicinsulatorsmullitebarium oxidezirconiaThe optimization of the formulation (nature and content of chemical components) and the technical parameters of the shaping-up process of ceramic insulators (in replacement of those in glass) are the objectives of this study. The decontamination of SiO2 (solid-liquid extraction of Fe xOy) and the increase of both BaO and ZrO2 amounts (while Na2O is partially eliminated) and the firing temperature allowed a significant increase of all the phys-mechanical and insulating properties at the commercial frequency 50-60 Hz. Samples with 15 mm diameter and 2 mm thickness and others for mechanical properties were needed. The characterization concerned Ba-Zr(Al xSi1-x)O3 ceramic samples. By data computing of the test results, a new "computed" formulation (Ba-stabilized and Zr doped mullite) showed excellent phys-mechanical (density, viscosity, flexural and traction strengths) and insulating properties (transversal resistivity, dielectric strength).Associação Brasileira de Cerâmica2009-06-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0366-69132009000200014Cerâmica v.55 n.334 2009reponame:Cerâmica (São Paulo. Online)instname:Universidade de São Paulo (USP)instacron:USP10.1590/S0366-69132009000200014info:eu-repo/semantics/openAccessRoula,A.Boudeghdegh,K.Boufafa,N.eng2009-08-04T00:00:00Zoai:scielo:S0366-69132009000200014Revistahttps://www.scielo.br/j/ce/PUBhttps://old.scielo.br/oai/scielo-oai.phpceram.abc@gmail.com||ceram.abc@gmail.com1678-45530366-6913opendoar:2009-08-04T00:00Cerâmica (São Paulo. Online) - Universidade de São Paulo (USP)false
dc.title.none.fl_str_mv Improving usual and dielectric properties of ceramic high voltage insulators
title Improving usual and dielectric properties of ceramic high voltage insulators
spellingShingle Improving usual and dielectric properties of ceramic high voltage insulators
Roula,A.
dielectric ceramic
insulators
mullite
barium oxide
zirconia
title_short Improving usual and dielectric properties of ceramic high voltage insulators
title_full Improving usual and dielectric properties of ceramic high voltage insulators
title_fullStr Improving usual and dielectric properties of ceramic high voltage insulators
title_full_unstemmed Improving usual and dielectric properties of ceramic high voltage insulators
title_sort Improving usual and dielectric properties of ceramic high voltage insulators
author Roula,A.
author_facet Roula,A.
Boudeghdegh,K.
Boufafa,N.
author_role author
author2 Boudeghdegh,K.
Boufafa,N.
author2_role author
author
dc.contributor.author.fl_str_mv Roula,A.
Boudeghdegh,K.
Boufafa,N.
dc.subject.por.fl_str_mv dielectric ceramic
insulators
mullite
barium oxide
zirconia
topic dielectric ceramic
insulators
mullite
barium oxide
zirconia
description The optimization of the formulation (nature and content of chemical components) and the technical parameters of the shaping-up process of ceramic insulators (in replacement of those in glass) are the objectives of this study. The decontamination of SiO2 (solid-liquid extraction of Fe xOy) and the increase of both BaO and ZrO2 amounts (while Na2O is partially eliminated) and the firing temperature allowed a significant increase of all the phys-mechanical and insulating properties at the commercial frequency 50-60 Hz. Samples with 15 mm diameter and 2 mm thickness and others for mechanical properties were needed. The characterization concerned Ba-Zr(Al xSi1-x)O3 ceramic samples. By data computing of the test results, a new "computed" formulation (Ba-stabilized and Zr doped mullite) showed excellent phys-mechanical (density, viscosity, flexural and traction strengths) and insulating properties (transversal resistivity, dielectric strength).
publishDate 2009
dc.date.none.fl_str_mv 2009-06-01
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=S0366-69132009000200014
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0366-69132009000200014
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/S0366-69132009000200014
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.55 n.334 2009
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
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