Two alternative routes for starch consolidation of mullite green bodies

Autores
Talou, Mariano Hernán; Camerucci, Maria Andrea
Año de publicación
2010
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The starch consolidation forming method can be used in the manufacture of porous ceramics. In this method, based on swelling and gelatinization properties of starch in aqueous suspension at temperature (55-80°C), the starch granules perform as both consolidator/binder of the green body and pore former at high-temperature.Commercially available powders of mullite and cassava starch were employed as raw materials. Mullite/starch aqueous suspensions (0.25 starch volume fraction of 40. vol.% total solid loading) were prepared by intensive mechanical mixing and homogenization in a ball mill.Two alternative forming routes of thermogelling mullite/starch aqueous suspensions-the Conventional Route (CR) and the Pre-Gelling Route (PGR)-were studied. With the CR, disks were formed by pouring the mullite/starch suspension at room temperature directly into metallic molds and heating at different temperatures (70 and 80°C) and times (1 and 2h). With the PGR, disks were shaped by pouring pre-gelled mullite/starch suspensions at 59°C into heated molds and heating at the same experimental conditions. Once the consolidation process was finished, samples were removed of the mold and dried. Green bodies shaped by the two processing routes and obtained before (CRbb and PGRbb) and after (CRab and PGRab) burning out the starch, were characterized by bulk density and apparent porosity measurements and microstructural analysis by SEM/EDAX on the external and fracture surfaces. The homogeneity of the distribution of raw materials and pores, and the volume porosity were taken into account to establish the optimum consolidation conditions to be used in the preparation of mullite porous materials with homogeneous microstructures.
Fil: Talou, Mariano Hernán. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones en Ciencia y Tecnología de Materiales. Universidad Nacional de Mar del Plata. Facultad de Ingeniería. Instituto de Investigaciones en Ciencia y Tecnología de Materiales; Argentina
Fil: Camerucci, Maria Andrea. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones en Ciencia y Tecnología de Materiales. Universidad Nacional de Mar del Plata. Facultad de Ingeniería. Instituto de Investigaciones en Ciencia y Tecnología de Materiales; Argentina
Materia
B. Microstructure-Prefiring
D. Mullite
Starch Direct Consolidation
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/55891
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/55891
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Two alternative routes for starch consolidation of mullite green bodiesTalou, Mariano HernánCamerucci, Maria AndreaB. Microstructure-PrefiringD. MulliteStarch Direct Consolidationhttps://purl.org/becyt/ford/2.5https://purl.org/becyt/ford/2The starch consolidation forming method can be used in the manufacture of porous ceramics. In this method, based on swelling and gelatinization properties of starch in aqueous suspension at temperature (55-80°C), the starch granules perform as both consolidator/binder of the green body and pore former at high-temperature.Commercially available powders of mullite and cassava starch were employed as raw materials. Mullite/starch aqueous suspensions (0.25 starch volume fraction of 40. vol.% total solid loading) were prepared by intensive mechanical mixing and homogenization in a ball mill.Two alternative forming routes of thermogelling mullite/starch aqueous suspensions-the Conventional Route (CR) and the Pre-Gelling Route (PGR)-were studied. With the CR, disks were formed by pouring the mullite/starch suspension at room temperature directly into metallic molds and heating at different temperatures (70 and 80°C) and times (1 and 2h). With the PGR, disks were shaped by pouring pre-gelled mullite/starch suspensions at 59°C into heated molds and heating at the same experimental conditions. Once the consolidation process was finished, samples were removed of the mold and dried. Green bodies shaped by the two processing routes and obtained before (CRbb and PGRbb) and after (CRab and PGRab) burning out the starch, were characterized by bulk density and apparent porosity measurements and microstructural analysis by SEM/EDAX on the external and fracture surfaces. The homogeneity of the distribution of raw materials and pores, and the volume porosity were taken into account to establish the optimum consolidation conditions to be used in the preparation of mullite porous materials with homogeneous microstructures.Fil: Talou, Mariano Hernán. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones en Ciencia y Tecnología de Materiales. Universidad Nacional de Mar del Plata. Facultad de Ingeniería. Instituto de Investigaciones en Ciencia y Tecnología de Materiales; ArgentinaFil: Camerucci, Maria Andrea. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones en Ciencia y Tecnología de Materiales. Universidad Nacional de Mar del Plata. Facultad de Ingeniería. Instituto de Investigaciones en Ciencia y Tecnología de Materiales; ArgentinaElsevier2010-10info: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/11336/55891Talou, Mariano Hernán; Camerucci, Maria Andrea; Two alternative routes for starch consolidation of mullite green bodies; Elsevier; Journal of the European Ceramic Society; 30; 14; 10-2010; 2881-28870955-2219CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1016/j.jeurceramsoc.2010.06.001info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0955221910002797info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-nd/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:18:33Zoai:ri.conicet.gov.ar:11336/55891instacron: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:34982025-09-29 10:18:33.308CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Two alternative routes for starch consolidation of mullite green bodies
title Two alternative routes for starch consolidation of mullite green bodies
spellingShingle Two alternative routes for starch consolidation of mullite green bodies
Talou, Mariano Hernán
B. Microstructure-Prefiring
D. Mullite
Starch Direct Consolidation
title_short Two alternative routes for starch consolidation of mullite green bodies
title_full Two alternative routes for starch consolidation of mullite green bodies
title_fullStr Two alternative routes for starch consolidation of mullite green bodies
title_full_unstemmed Two alternative routes for starch consolidation of mullite green bodies
title_sort Two alternative routes for starch consolidation of mullite green bodies
dc.creator.none.fl_str_mv Talou, Mariano Hernán
Camerucci, Maria Andrea
author Talou, Mariano Hernán
author_facet Talou, Mariano Hernán
Camerucci, Maria Andrea
author_role author
author2 Camerucci, Maria Andrea
author2_role author
dc.subject.none.fl_str_mv B. Microstructure-Prefiring
D. Mullite
Starch Direct Consolidation
topic B. Microstructure-Prefiring
D. Mullite
Starch Direct Consolidation
purl_subject.fl_str_mv https://purl.org/becyt/ford/2.5
https://purl.org/becyt/ford/2
dc.description.none.fl_txt_mv The starch consolidation forming method can be used in the manufacture of porous ceramics. In this method, based on swelling and gelatinization properties of starch in aqueous suspension at temperature (55-80°C), the starch granules perform as both consolidator/binder of the green body and pore former at high-temperature.Commercially available powders of mullite and cassava starch were employed as raw materials. Mullite/starch aqueous suspensions (0.25 starch volume fraction of 40. vol.% total solid loading) were prepared by intensive mechanical mixing and homogenization in a ball mill.Two alternative forming routes of thermogelling mullite/starch aqueous suspensions-the Conventional Route (CR) and the Pre-Gelling Route (PGR)-were studied. With the CR, disks were formed by pouring the mullite/starch suspension at room temperature directly into metallic molds and heating at different temperatures (70 and 80°C) and times (1 and 2h). With the PGR, disks were shaped by pouring pre-gelled mullite/starch suspensions at 59°C into heated molds and heating at the same experimental conditions. Once the consolidation process was finished, samples were removed of the mold and dried. Green bodies shaped by the two processing routes and obtained before (CRbb and PGRbb) and after (CRab and PGRab) burning out the starch, were characterized by bulk density and apparent porosity measurements and microstructural analysis by SEM/EDAX on the external and fracture surfaces. The homogeneity of the distribution of raw materials and pores, and the volume porosity were taken into account to establish the optimum consolidation conditions to be used in the preparation of mullite porous materials with homogeneous microstructures.
Fil: Talou, Mariano Hernán. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones en Ciencia y Tecnología de Materiales. Universidad Nacional de Mar del Plata. Facultad de Ingeniería. Instituto de Investigaciones en Ciencia y Tecnología de Materiales; Argentina
Fil: Camerucci, Maria Andrea. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones en Ciencia y Tecnología de Materiales. Universidad Nacional de Mar del Plata. Facultad de Ingeniería. Instituto de Investigaciones en Ciencia y Tecnología de Materiales; Argentina
description The starch consolidation forming method can be used in the manufacture of porous ceramics. In this method, based on swelling and gelatinization properties of starch in aqueous suspension at temperature (55-80°C), the starch granules perform as both consolidator/binder of the green body and pore former at high-temperature.Commercially available powders of mullite and cassava starch were employed as raw materials. Mullite/starch aqueous suspensions (0.25 starch volume fraction of 40. vol.% total solid loading) were prepared by intensive mechanical mixing and homogenization in a ball mill.Two alternative forming routes of thermogelling mullite/starch aqueous suspensions-the Conventional Route (CR) and the Pre-Gelling Route (PGR)-were studied. With the CR, disks were formed by pouring the mullite/starch suspension at room temperature directly into metallic molds and heating at different temperatures (70 and 80°C) and times (1 and 2h). With the PGR, disks were shaped by pouring pre-gelled mullite/starch suspensions at 59°C into heated molds and heating at the same experimental conditions. Once the consolidation process was finished, samples were removed of the mold and dried. Green bodies shaped by the two processing routes and obtained before (CRbb and PGRbb) and after (CRab and PGRab) burning out the starch, were characterized by bulk density and apparent porosity measurements and microstructural analysis by SEM/EDAX on the external and fracture surfaces. The homogeneity of the distribution of raw materials and pores, and the volume porosity were taken into account to establish the optimum consolidation conditions to be used in the preparation of mullite porous materials with homogeneous microstructures.
publishDate 2010
dc.date.none.fl_str_mv 2010-10
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/11336/55891
Talou, Mariano Hernán; Camerucci, Maria Andrea; Two alternative routes for starch consolidation of mullite green bodies; Elsevier; Journal of the European Ceramic Society; 30; 14; 10-2010; 2881-2887
0955-2219
CONICET Digital
CONICET
url http://hdl.handle.net/11336/55891
identifier_str_mv Talou, Mariano Hernán; Camerucci, Maria Andrea; Two alternative routes for starch consolidation of mullite green bodies; Elsevier; Journal of the European Ceramic Society; 30; 14; 10-2010; 2881-2887
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/j.jeurceramsoc.2010.06.001
info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0955221910002797
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-nd/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 13.070432

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