Análises térmicas e processo de sinterização da cerâmica KSr2Nb5O15 dopada com CuO

Detalhes bibliográficos
Autor(a) principal: Vieira,Delia do Carmo
Data de Publicação: 2009
Outros Autores: Cardoso,Celso Xavier, Duran,Rafael Matos
Tipo de documento: Artigo
Idioma: por
Título da fonte: Química Nova (Online)
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422009000700004
Resumo: KSr2Nb5O15 is a ferroelectric material. The sintering process of the KSr2Nb5O15 ceramic doped with different amounts of CuO was investigated in this research. It was found that CuO is effective as promoter of the densification process of the KSN ceramic. The developed microstructures were different due to the amount of CuO and secondary phases were observed in the microstructures. However, the results of X - ray diffraction showed that only the tetragonal tungsten bronze (TTB) structure was identified in all the investigated ceramic systems. The thermal behavior of CuO and also of the CuO - KSN phase mixture was investigated by thermal analysis.
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spelling Análises térmicas e processo de sinterização da cerâmica KSr2Nb5O15 dopada com CuOTTB niobatesthermal analysisliquid phase sinteringKSr2Nb5O15 is a ferroelectric material. The sintering process of the KSr2Nb5O15 ceramic doped with different amounts of CuO was investigated in this research. It was found that CuO is effective as promoter of the densification process of the KSN ceramic. The developed microstructures were different due to the amount of CuO and secondary phases were observed in the microstructures. However, the results of X - ray diffraction showed that only the tetragonal tungsten bronze (TTB) structure was identified in all the investigated ceramic systems. The thermal behavior of CuO and also of the CuO - KSN phase mixture was investigated by thermal analysis.Sociedade Brasileira de Química2009-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422009000700004Química Nova v.32 n.7 2009reponame:Química Nova (Online)instname:Sociedade Brasileira de Química (SBQ)instacron:SBQ10.1590/S0100-40422009000700004info:eu-repo/semantics/openAccessVieira,Delia do CarmoCardoso,Celso XavierDuran,Rafael Matospor2009-10-22T00:00:00Zoai:scielo:S0100-40422009000700004Revistahttps://www.scielo.br/j/qn/ONGhttps://old.scielo.br/oai/scielo-oai.phpquimicanova@sbq.org.br1678-70640100-4042opendoar:2009-10-22T00:00Química Nova (Online) - Sociedade Brasileira de Química (SBQ)false
dc.title.none.fl_str_mv Análises térmicas e processo de sinterização da cerâmica KSr2Nb5O15 dopada com CuO
title Análises térmicas e processo de sinterização da cerâmica KSr2Nb5O15 dopada com CuO
spellingShingle Análises térmicas e processo de sinterização da cerâmica KSr2Nb5O15 dopada com CuO
Vieira,Delia do Carmo
TTB niobates
thermal analysis
liquid phase sintering
title_short Análises térmicas e processo de sinterização da cerâmica KSr2Nb5O15 dopada com CuO
title_full Análises térmicas e processo de sinterização da cerâmica KSr2Nb5O15 dopada com CuO
title_fullStr Análises térmicas e processo de sinterização da cerâmica KSr2Nb5O15 dopada com CuO
title_full_unstemmed Análises térmicas e processo de sinterização da cerâmica KSr2Nb5O15 dopada com CuO
title_sort Análises térmicas e processo de sinterização da cerâmica KSr2Nb5O15 dopada com CuO
author Vieira,Delia do Carmo
author_facet Vieira,Delia do Carmo
Cardoso,Celso Xavier
Duran,Rafael Matos
author_role author
author2 Cardoso,Celso Xavier
Duran,Rafael Matos
author2_role author
author
dc.contributor.author.fl_str_mv Vieira,Delia do Carmo
Cardoso,Celso Xavier
Duran,Rafael Matos
dc.subject.por.fl_str_mv TTB niobates
thermal analysis
liquid phase sintering
topic TTB niobates
thermal analysis
liquid phase sintering
description KSr2Nb5O15 is a ferroelectric material. The sintering process of the KSr2Nb5O15 ceramic doped with different amounts of CuO was investigated in this research. It was found that CuO is effective as promoter of the densification process of the KSN ceramic. The developed microstructures were different due to the amount of CuO and secondary phases were observed in the microstructures. However, the results of X - ray diffraction showed that only the tetragonal tungsten bronze (TTB) structure was identified in all the investigated ceramic systems. The thermal behavior of CuO and also of the CuO - KSN phase mixture was investigated by thermal analysis.
publishDate 2009
dc.date.none.fl_str_mv 2009-01-01
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=S0100-40422009000700004
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422009000700004
dc.language.iso.fl_str_mv por
language por
dc.relation.none.fl_str_mv 10.1590/S0100-40422009000700004
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 Sociedade Brasileira de Química
publisher.none.fl_str_mv Sociedade Brasileira de Química
dc.source.none.fl_str_mv Química Nova v.32 n.7 2009
reponame:Química Nova (Online)
instname:Sociedade Brasileira de Química (SBQ)
instacron:SBQ
instname_str Sociedade Brasileira de Química (SBQ)
instacron_str SBQ
institution SBQ
reponame_str Química Nova (Online)
collection Química Nova (Online)
repository.name.fl_str_mv Química Nova (Online) - Sociedade Brasileira de Química (SBQ)
repository.mail.fl_str_mv quimicanova@sbq.org.br
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