Al2O3-based binders for corrosion resistance optimization of Al2O3-MgAl2O4 and Al2O3-MgO refractory castables

Autores
Tomba Martinez, Analia Gladys; Luz, A. P.; Braulio, M. A. L.; Pandolfelli, V. C.
Año de publicación
2015
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Abstract This work addresses the main aspects related to the use of alternative binders [hydratable (HA) or colloidal alumina (ColAlu)] in castables containing different spinel sources (pre-formed or in situ generated), in order to point out: (i) the features that control the corrosion behavior of these materials, and (ii) the key factors to better select a refractory composition. Thermodynamic calculations, corrosion cup-test and SEM analyses were carried out in order to evaluate the slag attack of the designed refractory compositions. According to the attained results, the alumina-based binders (HA or ColAlu) induced a more effective sintering process due to their high specific surface area, improving the physical properties and the binding level of the generated microstructure. The spinel grain size also played an important role in the corrosion behavior of these refractories, as the finer the particles, the greater their dissolution was into the molten liquid, leading to further precipitation of spinel in the solid-liquid interface as a continuous and thick layer. Among the evaluated compositions and considering the presence of silica fume, the most suitable formulation with optimized corrosion resistance was the one with in situ spinel generation and HA as a binder.
Fil: Tomba Martinez, Analia Gladys. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Mar del Plata. Instituto de Investigación en Ciencia y Tecnología de Materiales (i); Argentina
Fil: Luz, A. P.. Universidade Federal do São Carlos; Brasil
Fil: Braulio, M. A. L.. Universidade Federal do São Carlos; Brasil
Fil: Pandolfelli, V. C.. Universidade Federal do São Carlos; Brasil
Materia
C. CORROSION
CASTABLE
D. SPINEL
THERMODYNAMIC SIMULATION
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:11336/2883
Acceder
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network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Al2O3-based binders for corrosion resistance optimization of Al2O3-MgAl2O4 and Al2O3-MgO refractory castablesTomba Martinez, Analia GladysLuz, A. P.Braulio, M. A. L.Pandolfelli, V. C.C. CORROSIONCASTABLED. SPINELTHERMODYNAMIC SIMULATIONhttps://purl.org/becyt/ford/2.5https://purl.org/becyt/ford/2https://purl.org/becyt/ford/1.4https://purl.org/becyt/ford/1Abstract This work addresses the main aspects related to the use of alternative binders [hydratable (HA) or colloidal alumina (ColAlu)] in castables containing different spinel sources (pre-formed or in situ generated), in order to point out: (i) the features that control the corrosion behavior of these materials, and (ii) the key factors to better select a refractory composition. Thermodynamic calculations, corrosion cup-test and SEM analyses were carried out in order to evaluate the slag attack of the designed refractory compositions. According to the attained results, the alumina-based binders (HA or ColAlu) induced a more effective sintering process due to their high specific surface area, improving the physical properties and the binding level of the generated microstructure. The spinel grain size also played an important role in the corrosion behavior of these refractories, as the finer the particles, the greater their dissolution was into the molten liquid, leading to further precipitation of spinel in the solid-liquid interface as a continuous and thick layer. Among the evaluated compositions and considering the presence of silica fume, the most suitable formulation with optimized corrosion resistance was the one with in situ spinel generation and HA as a binder.Fil: Tomba Martinez, Analia Gladys. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Mar del Plata. Instituto de Investigación en Ciencia y Tecnología de Materiales (i); ArgentinaFil: Luz, A. P.. Universidade Federal do São Carlos; BrasilFil: Braulio, M. A. L.. Universidade Federal do São Carlos; BrasilFil: Pandolfelli, V. C.. Universidade Federal do São Carlos; BrasilElsevier2015-04-23info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/2883Tomba Martinez, Analia Gladys; Luz, A. P.; Braulio, M. A. L.; Pandolfelli, V. C.; Al2O3-based binders for corrosion resistance optimization of Al2O3-MgAl2O4 and Al2O3-MgO refractory castables; Elsevier; Ceramics International; 41; 8; 23-4-2015; 9947-99560272-8842enginfo:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S0272884215008305info:eu-repo/semantics/altIdentifier/doi/10.1016/j.ceramint.2015.04.074info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T10:09:07Zoai:ri.conicet.gov.ar:11336/2883instacron: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:34982025-09-03 10:09:07.799CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Al2O3-based binders for corrosion resistance optimization of Al2O3-MgAl2O4 and Al2O3-MgO refractory castables
title Al2O3-based binders for corrosion resistance optimization of Al2O3-MgAl2O4 and Al2O3-MgO refractory castables
spellingShingle Al2O3-based binders for corrosion resistance optimization of Al2O3-MgAl2O4 and Al2O3-MgO refractory castables
Tomba Martinez, Analia Gladys
C. CORROSION
CASTABLE
D. SPINEL
THERMODYNAMIC SIMULATION
title_short Al2O3-based binders for corrosion resistance optimization of Al2O3-MgAl2O4 and Al2O3-MgO refractory castables
title_full Al2O3-based binders for corrosion resistance optimization of Al2O3-MgAl2O4 and Al2O3-MgO refractory castables
title_fullStr Al2O3-based binders for corrosion resistance optimization of Al2O3-MgAl2O4 and Al2O3-MgO refractory castables
title_full_unstemmed Al2O3-based binders for corrosion resistance optimization of Al2O3-MgAl2O4 and Al2O3-MgO refractory castables
title_sort Al2O3-based binders for corrosion resistance optimization of Al2O3-MgAl2O4 and Al2O3-MgO refractory castables
dc.creator.none.fl_str_mv Tomba Martinez, Analia Gladys
Luz, A. P.
Braulio, M. A. L.
Pandolfelli, V. C.
author Tomba Martinez, Analia Gladys
author_facet Tomba Martinez, Analia Gladys
Luz, A. P.
Braulio, M. A. L.
Pandolfelli, V. C.
author_role author
author2 Luz, A. P.
Braulio, M. A. L.
Pandolfelli, V. C.
author2_role author
author
author
dc.subject.none.fl_str_mv C. CORROSION
CASTABLE
D. SPINEL
THERMODYNAMIC SIMULATION
topic C. CORROSION
CASTABLE
D. SPINEL
THERMODYNAMIC SIMULATION
purl_subject.fl_str_mv https://purl.org/becyt/ford/2.5
https://purl.org/becyt/ford/2
https://purl.org/becyt/ford/1.4
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Abstract This work addresses the main aspects related to the use of alternative binders [hydratable (HA) or colloidal alumina (ColAlu)] in castables containing different spinel sources (pre-formed or in situ generated), in order to point out: (i) the features that control the corrosion behavior of these materials, and (ii) the key factors to better select a refractory composition. Thermodynamic calculations, corrosion cup-test and SEM analyses were carried out in order to evaluate the slag attack of the designed refractory compositions. According to the attained results, the alumina-based binders (HA or ColAlu) induced a more effective sintering process due to their high specific surface area, improving the physical properties and the binding level of the generated microstructure. The spinel grain size also played an important role in the corrosion behavior of these refractories, as the finer the particles, the greater their dissolution was into the molten liquid, leading to further precipitation of spinel in the solid-liquid interface as a continuous and thick layer. Among the evaluated compositions and considering the presence of silica fume, the most suitable formulation with optimized corrosion resistance was the one with in situ spinel generation and HA as a binder.
Fil: Tomba Martinez, Analia Gladys. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Mar del Plata. Instituto de Investigación en Ciencia y Tecnología de Materiales (i); Argentina
Fil: Luz, A. P.. Universidade Federal do São Carlos; Brasil
Fil: Braulio, M. A. L.. Universidade Federal do São Carlos; Brasil
Fil: Pandolfelli, V. C.. Universidade Federal do São Carlos; Brasil
description Abstract This work addresses the main aspects related to the use of alternative binders [hydratable (HA) or colloidal alumina (ColAlu)] in castables containing different spinel sources (pre-formed or in situ generated), in order to point out: (i) the features that control the corrosion behavior of these materials, and (ii) the key factors to better select a refractory composition. Thermodynamic calculations, corrosion cup-test and SEM analyses were carried out in order to evaluate the slag attack of the designed refractory compositions. According to the attained results, the alumina-based binders (HA or ColAlu) induced a more effective sintering process due to their high specific surface area, improving the physical properties and the binding level of the generated microstructure. The spinel grain size also played an important role in the corrosion behavior of these refractories, as the finer the particles, the greater their dissolution was into the molten liquid, leading to further precipitation of spinel in the solid-liquid interface as a continuous and thick layer. Among the evaluated compositions and considering the presence of silica fume, the most suitable formulation with optimized corrosion resistance was the one with in situ spinel generation and HA as a binder.
publishDate 2015
dc.date.none.fl_str_mv 2015-04-23
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/11336/2883
Tomba Martinez, Analia Gladys; Luz, A. P.; Braulio, M. A. L.; Pandolfelli, V. C.; Al2O3-based binders for corrosion resistance optimization of Al2O3-MgAl2O4 and Al2O3-MgO refractory castables; Elsevier; Ceramics International; 41; 8; 23-4-2015; 9947-9956
0272-8842
url http://hdl.handle.net/11336/2883
identifier_str_mv Tomba Martinez, Analia Gladys; Luz, A. P.; Braulio, M. A. L.; Pandolfelli, V. C.; Al2O3-based binders for corrosion resistance optimization of Al2O3-MgAl2O4 and Al2O3-MgO refractory castables; Elsevier; Ceramics International; 41; 8; 23-4-2015; 9947-9956
0272-8842
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S0272884215008305
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.ceramint.2015.04.074
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
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 13.13397

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