CA6 impact on the corrosion behavior of cement-bonded spinel-containing refractory castables: an analysis based on thermodynamic simulation
- Autores
- Tomba Martinez, Analia Gladys; Luz, A. P.; Braulio, M. A. L.; Pandolfelli, V. C.
- Año de publicación
- 2014
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- This work focuses on the evaluation of the corrosion behavior of Al2O3-MgO cement-bonded castables based on thermodynamic calculations, in order to understand the reaction steps and some scientific and technological issues that still need to be better explained when such materials come into contact with basic industrial slags at high temperatures. Special attention was given to analyzing the role played by the calcium hexaluminate phase (CA6) during the first heating stage of the samples and their further chemical attack. Experimental measurements (cup tests at 1500 °C) and thermodynamic simulations were carried out considering a basic slag (CaO/SiO2=4.2) and four refractory castables with different spinel (MgAl2O4) sources (pre-formed or in situ) and with or without silica fume (0 or 1 wt%). Considering the attained results, a novel corrosion mechanism is proposed pointing out that a suitable design of the castable compositions can induce the formation of CA6 at the border of the coarse aggregates, preventing their further dissolution and increasing the overall wear resistance of these refractories. In Addition, incorporating optimized contents of silica fume and cement to the spinel-containing castables helps to master the generation of the CA6 and CA2 protective layers, resulting in a lower chemical attack at high temperatures.
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. Universidad Nacional de Mar del Plata. Facultad de Ingenieria; 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
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/2882
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CA6 impact on the corrosion behavior of cement-bonded spinel-containing refractory castables: an analysis based on thermodynamic simulationTomba Martinez, Analia GladysLuz, A. P.Braulio, M. A. L.Pandolfelli, V. C.C. CORROSIONCASTABLED. SPINELTHERMODYNAMIC SIMULATIONhttps://purl.org/becyt/ford/2.3https://purl.org/becyt/ford/2https://purl.org/becyt/ford/2.5https://purl.org/becyt/ford/2https://purl.org/becyt/ford/1.4https://purl.org/becyt/ford/1This work focuses on the evaluation of the corrosion behavior of Al2O3-MgO cement-bonded castables based on thermodynamic calculations, in order to understand the reaction steps and some scientific and technological issues that still need to be better explained when such materials come into contact with basic industrial slags at high temperatures. Special attention was given to analyzing the role played by the calcium hexaluminate phase (CA6) during the first heating stage of the samples and their further chemical attack. Experimental measurements (cup tests at 1500 °C) and thermodynamic simulations were carried out considering a basic slag (CaO/SiO2=4.2) and four refractory castables with different spinel (MgAl2O4) sources (pre-formed or in situ) and with or without silica fume (0 or 1 wt%). Considering the attained results, a novel corrosion mechanism is proposed pointing out that a suitable design of the castable compositions can induce the formation of CA6 at the border of the coarse aggregates, preventing their further dissolution and increasing the overall wear resistance of these refractories. In Addition, incorporating optimized contents of silica fume and cement to the spinel-containing castables helps to master the generation of the CA6 and CA2 protective layers, resulting in a lower chemical attack at high temperatures.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. Universidad Nacional de Mar del Plata. Facultad de Ingenieria; 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; BrasilElsevier2014-12-11info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/2882Tomba Martinez, Analia Gladys; Luz, A. P.; Braulio, M. A. L.; Pandolfelli, V. C.; CA6 impact on the corrosion behavior of cement-bonded spinel-containing refractory castables: an analysis based on thermodynamic simulation; Elsevier; Ceramics International; 41; 3; 11-12-2014; 4714-47250272-8842enginfo:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S0272884214019415info:eu-repo/semantics/altIdentifier/doi/10.1016/j.ceramint.2014.12.020info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T09:44:30Zoai:ri.conicet.gov.ar:11336/2882instacron: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 09:44:30.377CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse |
dc.title.none.fl_str_mv |
CA6 impact on the corrosion behavior of cement-bonded spinel-containing refractory castables: an analysis based on thermodynamic simulation |
title |
CA6 impact on the corrosion behavior of cement-bonded spinel-containing refractory castables: an analysis based on thermodynamic simulation |
spellingShingle |
CA6 impact on the corrosion behavior of cement-bonded spinel-containing refractory castables: an analysis based on thermodynamic simulation Tomba Martinez, Analia Gladys C. CORROSION CASTABLE D. SPINEL THERMODYNAMIC SIMULATION |
title_short |
CA6 impact on the corrosion behavior of cement-bonded spinel-containing refractory castables: an analysis based on thermodynamic simulation |
title_full |
CA6 impact on the corrosion behavior of cement-bonded spinel-containing refractory castables: an analysis based on thermodynamic simulation |
title_fullStr |
CA6 impact on the corrosion behavior of cement-bonded spinel-containing refractory castables: an analysis based on thermodynamic simulation |
title_full_unstemmed |
CA6 impact on the corrosion behavior of cement-bonded spinel-containing refractory castables: an analysis based on thermodynamic simulation |
title_sort |
CA6 impact on the corrosion behavior of cement-bonded spinel-containing refractory castables: an analysis based on thermodynamic simulation |
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/2.3 https://purl.org/becyt/ford/2 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 |
This work focuses on the evaluation of the corrosion behavior of Al2O3-MgO cement-bonded castables based on thermodynamic calculations, in order to understand the reaction steps and some scientific and technological issues that still need to be better explained when such materials come into contact with basic industrial slags at high temperatures. Special attention was given to analyzing the role played by the calcium hexaluminate phase (CA6) during the first heating stage of the samples and their further chemical attack. Experimental measurements (cup tests at 1500 °C) and thermodynamic simulations were carried out considering a basic slag (CaO/SiO2=4.2) and four refractory castables with different spinel (MgAl2O4) sources (pre-formed or in situ) and with or without silica fume (0 or 1 wt%). Considering the attained results, a novel corrosion mechanism is proposed pointing out that a suitable design of the castable compositions can induce the formation of CA6 at the border of the coarse aggregates, preventing their further dissolution and increasing the overall wear resistance of these refractories. In Addition, incorporating optimized contents of silica fume and cement to the spinel-containing castables helps to master the generation of the CA6 and CA2 protective layers, resulting in a lower chemical attack at high temperatures. 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. Universidad Nacional de Mar del Plata. Facultad de Ingenieria; 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 |
This work focuses on the evaluation of the corrosion behavior of Al2O3-MgO cement-bonded castables based on thermodynamic calculations, in order to understand the reaction steps and some scientific and technological issues that still need to be better explained when such materials come into contact with basic industrial slags at high temperatures. Special attention was given to analyzing the role played by the calcium hexaluminate phase (CA6) during the first heating stage of the samples and their further chemical attack. Experimental measurements (cup tests at 1500 °C) and thermodynamic simulations were carried out considering a basic slag (CaO/SiO2=4.2) and four refractory castables with different spinel (MgAl2O4) sources (pre-formed or in situ) and with or without silica fume (0 or 1 wt%). Considering the attained results, a novel corrosion mechanism is proposed pointing out that a suitable design of the castable compositions can induce the formation of CA6 at the border of the coarse aggregates, preventing their further dissolution and increasing the overall wear resistance of these refractories. In Addition, incorporating optimized contents of silica fume and cement to the spinel-containing castables helps to master the generation of the CA6 and CA2 protective layers, resulting in a lower chemical attack at high temperatures. |
publishDate |
2014 |
dc.date.none.fl_str_mv |
2014-12-11 |
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/11336/2882 Tomba Martinez, Analia Gladys; Luz, A. P.; Braulio, M. A. L.; Pandolfelli, V. C.; CA6 impact on the corrosion behavior of cement-bonded spinel-containing refractory castables: an analysis based on thermodynamic simulation; Elsevier; Ceramics International; 41; 3; 11-12-2014; 4714-4725 0272-8842 |
url |
http://hdl.handle.net/11336/2882 |
identifier_str_mv |
Tomba Martinez, Analia Gladys; Luz, A. P.; Braulio, M. A. L.; Pandolfelli, V. C.; CA6 impact on the corrosion behavior of cement-bonded spinel-containing refractory castables: an analysis based on thermodynamic simulation; Elsevier; Ceramics International; 41; 3; 11-12-2014; 4714-4725 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/S0272884214019415 info:eu-repo/semantics/altIdentifier/doi/10.1016/j.ceramint.2014.12.020 |
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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1844613400641929216 |
score |
13.070432 |