Pressure filtration and slip casting of mixed alumina–zircon suspensions

Autores
Garrido, Liliana Beatriz; Aglietti, Esteban Fausto
Año de publicación
2001
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Mullite-zirconia based ceramics can be obtained from zircon raw material and alumina. Rheological properties of aqueous 48 vol.% suspensions containing a mixture of zircon and α-alumina powders were determined to obtain the optimum dispersion conditions for colloidal processing of dense mullite–zirconia composites. Powder compositions with different alumina/zircon (wt.% ) ratios in the mixtures were studied. Colloid stability as a function of pH for zircon and alumina, with and without polyacrylate, was studied by sedimentation tests. The effect of the chemical composition of the mixed powders and addition of polyacrylate on the viscosity of the suspensions were examined. Green density of compacts that were consolidated by slip casting and pressure filtration at 8 MPa were correlated with rheological properties of the suspensions and their compositions. Pressure filtered bodies were slightly less dense than the compacts prepared by slip casting and the dried relative density increased with increasing the degree of dispersion of the particles. After sintering at 1600°C for 2 h, the compacts from well-dispersed suspensions reached high density showing a fine and homogeneous microstructure.
Fil: Garrido, Liliana Beatriz. Provincia de Buenos Aires. Gobernación. Comisión de Investigaciones Científicas. Centro de Tecnología de Recursos Minerales y Cerámica. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Centro de Tecnología de Recursos Minerales y Cerámica; Argentina
Fil: Aglietti, Esteban Fausto. Provincia de Buenos Aires. Gobernación. Comisión de Investigaciones Científicas. Centro de Tecnología de Recursos Minerales y Cerámica. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Centro de Tecnología de Recursos Minerales y Cerámica; Argentina
Materia
Al2O3
Pressure filtration
Slip casting
Suspensions
Zircon-alumina
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/154208
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/154208
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Pressure filtration and slip casting of mixed alumina–zircon suspensionsGarrido, Liliana BeatrizAglietti, Esteban FaustoAl2O3Pressure filtrationSlip castingSuspensionsZircon-aluminahttps://purl.org/becyt/ford/2.5https://purl.org/becyt/ford/2Mullite-zirconia based ceramics can be obtained from zircon raw material and alumina. Rheological properties of aqueous 48 vol.% suspensions containing a mixture of zircon and α-alumina powders were determined to obtain the optimum dispersion conditions for colloidal processing of dense mullite–zirconia composites. Powder compositions with different alumina/zircon (wt.% ) ratios in the mixtures were studied. Colloid stability as a function of pH for zircon and alumina, with and without polyacrylate, was studied by sedimentation tests. The effect of the chemical composition of the mixed powders and addition of polyacrylate on the viscosity of the suspensions were examined. Green density of compacts that were consolidated by slip casting and pressure filtration at 8 MPa were correlated with rheological properties of the suspensions and their compositions. Pressure filtered bodies were slightly less dense than the compacts prepared by slip casting and the dried relative density increased with increasing the degree of dispersion of the particles. After sintering at 1600°C for 2 h, the compacts from well-dispersed suspensions reached high density showing a fine and homogeneous microstructure.Fil: Garrido, Liliana Beatriz. Provincia de Buenos Aires. Gobernación. Comisión de Investigaciones Científicas. Centro de Tecnología de Recursos Minerales y Cerámica. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Centro de Tecnología de Recursos Minerales y Cerámica; ArgentinaFil: Aglietti, Esteban Fausto. Provincia de Buenos Aires. Gobernación. Comisión de Investigaciones Científicas. Centro de Tecnología de Recursos Minerales y Cerámica. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Centro de Tecnología de Recursos Minerales y Cerámica; ArgentinaElsevier2001-10info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/154208Garrido, Liliana Beatriz; Aglietti, Esteban Fausto; Pressure filtration and slip casting of mixed alumina–zircon suspensions; Elsevier; Journal of the European Ceramic Society; 21; 12; 10-2001; 2259-22660955-2219CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1016/S0955-2219(00)00311-3info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/abs/pii/S0955221900003113info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-10T13:04:57Zoai:ri.conicet.gov.ar:11336/154208instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-10 13:04:57.377CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Pressure filtration and slip casting of mixed alumina–zircon suspensions
title Pressure filtration and slip casting of mixed alumina–zircon suspensions
spellingShingle Pressure filtration and slip casting of mixed alumina–zircon suspensions
Garrido, Liliana Beatriz
Al2O3
Pressure filtration
Slip casting
Suspensions
Zircon-alumina
title_short Pressure filtration and slip casting of mixed alumina–zircon suspensions
title_full Pressure filtration and slip casting of mixed alumina–zircon suspensions
title_fullStr Pressure filtration and slip casting of mixed alumina–zircon suspensions
title_full_unstemmed Pressure filtration and slip casting of mixed alumina–zircon suspensions
title_sort Pressure filtration and slip casting of mixed alumina–zircon suspensions
dc.creator.none.fl_str_mv Garrido, Liliana Beatriz
Aglietti, Esteban Fausto
author Garrido, Liliana Beatriz
author_facet Garrido, Liliana Beatriz
Aglietti, Esteban Fausto
author_role author
author2 Aglietti, Esteban Fausto
author2_role author
dc.subject.none.fl_str_mv Al2O3
Pressure filtration
Slip casting
Suspensions
Zircon-alumina
topic Al2O3
Pressure filtration
Slip casting
Suspensions
Zircon-alumina
purl_subject.fl_str_mv https://purl.org/becyt/ford/2.5
https://purl.org/becyt/ford/2
dc.description.none.fl_txt_mv Mullite-zirconia based ceramics can be obtained from zircon raw material and alumina. Rheological properties of aqueous 48 vol.% suspensions containing a mixture of zircon and α-alumina powders were determined to obtain the optimum dispersion conditions for colloidal processing of dense mullite–zirconia composites. Powder compositions with different alumina/zircon (wt.% ) ratios in the mixtures were studied. Colloid stability as a function of pH for zircon and alumina, with and without polyacrylate, was studied by sedimentation tests. The effect of the chemical composition of the mixed powders and addition of polyacrylate on the viscosity of the suspensions were examined. Green density of compacts that were consolidated by slip casting and pressure filtration at 8 MPa were correlated with rheological properties of the suspensions and their compositions. Pressure filtered bodies were slightly less dense than the compacts prepared by slip casting and the dried relative density increased with increasing the degree of dispersion of the particles. After sintering at 1600°C for 2 h, the compacts from well-dispersed suspensions reached high density showing a fine and homogeneous microstructure.
Fil: Garrido, Liliana Beatriz. Provincia de Buenos Aires. Gobernación. Comisión de Investigaciones Científicas. Centro de Tecnología de Recursos Minerales y Cerámica. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Centro de Tecnología de Recursos Minerales y Cerámica; Argentina
Fil: Aglietti, Esteban Fausto. Provincia de Buenos Aires. Gobernación. Comisión de Investigaciones Científicas. Centro de Tecnología de Recursos Minerales y Cerámica. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Centro de Tecnología de Recursos Minerales y Cerámica; Argentina
description Mullite-zirconia based ceramics can be obtained from zircon raw material and alumina. Rheological properties of aqueous 48 vol.% suspensions containing a mixture of zircon and α-alumina powders were determined to obtain the optimum dispersion conditions for colloidal processing of dense mullite–zirconia composites. Powder compositions with different alumina/zircon (wt.% ) ratios in the mixtures were studied. Colloid stability as a function of pH for zircon and alumina, with and without polyacrylate, was studied by sedimentation tests. The effect of the chemical composition of the mixed powders and addition of polyacrylate on the viscosity of the suspensions were examined. Green density of compacts that were consolidated by slip casting and pressure filtration at 8 MPa were correlated with rheological properties of the suspensions and their compositions. Pressure filtered bodies were slightly less dense than the compacts prepared by slip casting and the dried relative density increased with increasing the degree of dispersion of the particles. After sintering at 1600°C for 2 h, the compacts from well-dispersed suspensions reached high density showing a fine and homogeneous microstructure.
publishDate 2001
dc.date.none.fl_str_mv 2001-10
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/154208
Garrido, Liliana Beatriz; Aglietti, Esteban Fausto; Pressure filtration and slip casting of mixed alumina–zircon suspensions; Elsevier; Journal of the European Ceramic Society; 21; 12; 10-2001; 2259-2266
0955-2219
CONICET Digital
CONICET
url http://hdl.handle.net/11336/154208
identifier_str_mv Garrido, Liliana Beatriz; Aglietti, Esteban Fausto; Pressure filtration and slip casting of mixed alumina–zircon suspensions; Elsevier; Journal of the European Ceramic Society; 21; 12; 10-2001; 2259-2266
0955-2219
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1016/S0955-2219(00)00311-3
info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/abs/pii/S0955221900003113
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
application/pdf
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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score 12.993085

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