Thermomechanical behaviour of Al2O3-MgO-C refractories under non-oxidizing atmosphere

Autores
Muñoz, Vanesa; Tomba Martinez, Analia Gladys
Año de publicación
2014
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Al2O3-MgO-C (AMC) refractory bricks are used as linings for the sidewalls (metal line) and bottoms of steel-making ladles. As a structural component of this type of vessel, these bricks undergo mechanical and thermal loading in service. For this reason, knowledge about their thermo-mechanical behavior is needed for material selection and ladle design using structural calculus. Even when the mechanical response of AMC refractories is similar to that of MgO-C bricks, which have been studied a great deal, they have distinctive features that have to be studied specifically. The aim of this paper is to evaluate the mechanical performance of three commercial Al2O3-MgO-C bricks by stress-strain curves from RT to 1260 °C, using a non-oxidizing atmosphere (nitrogen). From these curves, the following mechanical parameters were determined: Apparent Young modulus (E), mechanical strength (σR), fracture strain (εR) and yield stress (σY). In order to infer what the main factors are in determining the mechanical response of each AMC refractory, the tested specimens were analyzed by bulk density and apparent porosity measurements and SEM/EDS. The increasing porosity (pores and microcracks), the loss of graphite and the new solids formed as products of the reactions between the refractory components control the behavior of the studied AMC materials. However, the contribution of each depends on the temperature and the refractories characteristics.
Fil: Muñoz, Vanesa. 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: 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
Materia
C. MECHANICAL PROPERTIES
D. AL2O3
D. CARBON
D. MGO
E. REFRACTORIES
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:11336/2884
Acceder
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network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Thermomechanical behaviour of Al2O3-MgO-C refractories under non-oxidizing atmosphereMuñoz, VanesaTomba Martinez, Analia GladysC. MECHANICAL PROPERTIESD. AL2O3D. CARBOND. MGOE. REFRACTORIEShttps://purl.org/becyt/ford/2.5https://purl.org/becyt/ford/2Al2O3-MgO-C (AMC) refractory bricks are used as linings for the sidewalls (metal line) and bottoms of steel-making ladles. As a structural component of this type of vessel, these bricks undergo mechanical and thermal loading in service. For this reason, knowledge about their thermo-mechanical behavior is needed for material selection and ladle design using structural calculus. Even when the mechanical response of AMC refractories is similar to that of MgO-C bricks, which have been studied a great deal, they have distinctive features that have to be studied specifically. The aim of this paper is to evaluate the mechanical performance of three commercial Al2O3-MgO-C bricks by stress-strain curves from RT to 1260 °C, using a non-oxidizing atmosphere (nitrogen). From these curves, the following mechanical parameters were determined: Apparent Young modulus (E), mechanical strength (σR), fracture strain (εR) and yield stress (σY). In order to infer what the main factors are in determining the mechanical response of each AMC refractory, the tested specimens were analyzed by bulk density and apparent porosity measurements and SEM/EDS. The increasing porosity (pores and microcracks), the loss of graphite and the new solids formed as products of the reactions between the refractory components control the behavior of the studied AMC materials. However, the contribution of each depends on the temperature and the refractories characteristics.Fil: Muñoz, Vanesa. 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: 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; ArgentinaElsevier2014-11-11info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/2884Muñoz, Vanesa; Tomba Martinez, Analia Gladys; Thermomechanical behaviour of Al2O3-MgO-C refractories under non-oxidizing atmosphere; Elsevier; Ceramics International; 41; 3; 11-11-2014; 3438-34480272-8842enginfo:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S0272884214016988info:eu-repo/semantics/altIdentifier/doi/10.1016/j.ceramint.2014.10.146info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-15T15:42:29Zoai:ri.conicet.gov.ar:11336/2884instacron: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:34982025-10-15 15:42:29.44CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Thermomechanical behaviour of Al2O3-MgO-C refractories under non-oxidizing atmosphere
title Thermomechanical behaviour of Al2O3-MgO-C refractories under non-oxidizing atmosphere
spellingShingle Thermomechanical behaviour of Al2O3-MgO-C refractories under non-oxidizing atmosphere
Muñoz, Vanesa
C. MECHANICAL PROPERTIES
D. AL2O3
D. CARBON
D. MGO
E. REFRACTORIES
title_short Thermomechanical behaviour of Al2O3-MgO-C refractories under non-oxidizing atmosphere
title_full Thermomechanical behaviour of Al2O3-MgO-C refractories under non-oxidizing atmosphere
title_fullStr Thermomechanical behaviour of Al2O3-MgO-C refractories under non-oxidizing atmosphere
title_full_unstemmed Thermomechanical behaviour of Al2O3-MgO-C refractories under non-oxidizing atmosphere
title_sort Thermomechanical behaviour of Al2O3-MgO-C refractories under non-oxidizing atmosphere
dc.creator.none.fl_str_mv Muñoz, Vanesa
Tomba Martinez, Analia Gladys
author Muñoz, Vanesa
author_facet Muñoz, Vanesa
Tomba Martinez, Analia Gladys
author_role author
author2 Tomba Martinez, Analia Gladys
author2_role author
dc.subject.none.fl_str_mv C. MECHANICAL PROPERTIES
D. AL2O3
D. CARBON
D. MGO
E. REFRACTORIES
topic C. MECHANICAL PROPERTIES
D. AL2O3
D. CARBON
D. MGO
E. REFRACTORIES
purl_subject.fl_str_mv https://purl.org/becyt/ford/2.5
https://purl.org/becyt/ford/2
dc.description.none.fl_txt_mv Al2O3-MgO-C (AMC) refractory bricks are used as linings for the sidewalls (metal line) and bottoms of steel-making ladles. As a structural component of this type of vessel, these bricks undergo mechanical and thermal loading in service. For this reason, knowledge about their thermo-mechanical behavior is needed for material selection and ladle design using structural calculus. Even when the mechanical response of AMC refractories is similar to that of MgO-C bricks, which have been studied a great deal, they have distinctive features that have to be studied specifically. The aim of this paper is to evaluate the mechanical performance of three commercial Al2O3-MgO-C bricks by stress-strain curves from RT to 1260 °C, using a non-oxidizing atmosphere (nitrogen). From these curves, the following mechanical parameters were determined: Apparent Young modulus (E), mechanical strength (σR), fracture strain (εR) and yield stress (σY). In order to infer what the main factors are in determining the mechanical response of each AMC refractory, the tested specimens were analyzed by bulk density and apparent porosity measurements and SEM/EDS. The increasing porosity (pores and microcracks), the loss of graphite and the new solids formed as products of the reactions between the refractory components control the behavior of the studied AMC materials. However, the contribution of each depends on the temperature and the refractories characteristics.
Fil: Muñoz, Vanesa. 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: 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
description Al2O3-MgO-C (AMC) refractory bricks are used as linings for the sidewalls (metal line) and bottoms of steel-making ladles. As a structural component of this type of vessel, these bricks undergo mechanical and thermal loading in service. For this reason, knowledge about their thermo-mechanical behavior is needed for material selection and ladle design using structural calculus. Even when the mechanical response of AMC refractories is similar to that of MgO-C bricks, which have been studied a great deal, they have distinctive features that have to be studied specifically. The aim of this paper is to evaluate the mechanical performance of three commercial Al2O3-MgO-C bricks by stress-strain curves from RT to 1260 °C, using a non-oxidizing atmosphere (nitrogen). From these curves, the following mechanical parameters were determined: Apparent Young modulus (E), mechanical strength (σR), fracture strain (εR) and yield stress (σY). In order to infer what the main factors are in determining the mechanical response of each AMC refractory, the tested specimens were analyzed by bulk density and apparent porosity measurements and SEM/EDS. The increasing porosity (pores and microcracks), the loss of graphite and the new solids formed as products of the reactions between the refractory components control the behavior of the studied AMC materials. However, the contribution of each depends on the temperature and the refractories characteristics.
publishDate 2014
dc.date.none.fl_str_mv 2014-11-11
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/11336/2884
Muñoz, Vanesa; Tomba Martinez, Analia Gladys; Thermomechanical behaviour of Al2O3-MgO-C refractories under non-oxidizing atmosphere; Elsevier; Ceramics International; 41; 3; 11-11-2014; 3438-3448
0272-8842
url http://hdl.handle.net/11336/2884
identifier_str_mv Muñoz, Vanesa; Tomba Martinez, Analia Gladys; Thermomechanical behaviour of Al2O3-MgO-C refractories under non-oxidizing atmosphere; Elsevier; Ceramics International; 41; 3; 11-11-2014; 3438-3448
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/S0272884214016988
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.ceramint.2014.10.146
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 13.22299

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