Three different alumina-zirconia composites: Sintering, microstructure and mechanical properties

Autores
Calambás Pulgarín, Heidy Lorena; Albano, Maria Patricia
Año de publicación
2015
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Two commercial 3mol% yttria-partially stabilized zirconia powders, with 0.3wt% Al2O3 (Y-PSZA) and without Al2O3 (Y-PSZ), and a Zr (IV) precursor were used to produce alumina (Al2O3)-zirconia (ZrO2) slip cast composites. The influence of both the zirconia content and the reduction of zirconia particle size on the sintering behavior, microstructure development and mechanical properties were investigated. The increase in the zirconia content from 10.5 to 22vol% increased the hardness; whereas, above 22vol% ZrO2 the hardness decreased. A significant increase in the fracture toughness with increasing the ZrO2 content over 22vol% was obtained by the stress-induced phase transformation. The flaw size limited the strength below 22vol%; whereas, above 22vol% ZrO2 the strength was controlled by the stress-activated phase transformation. For 10.5vol% ZrO2, the smaller ZrO2 grains produced by using the Zr (IV) precursor were more effective in preventing the Al2O3 grain growth resulting in higher hardness. However, the tetragonal-monoclinic (t-m) transformation of some unstabilized ZrO2 grains during cooling reduced Young's modulus and fracture toughness.
Fil: Calambás Pulgarín, Heidy Lorena. 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: Albano, Maria Patricia. 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–Zro2
Mechanical Properties
Microstructure
Sintering Behavior
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:11336/49143
Acceder
id CONICETDig_06a348b8fff890cb375ea9e3ed25d1bd
oai_identifier_str oai:ri.conicet.gov.ar:11336/49143
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Three different alumina-zirconia composites: Sintering, microstructure and mechanical propertiesCalambás Pulgarín, Heidy LorenaAlbano, Maria PatriciaAl2o3–Zro2Mechanical PropertiesMicrostructureSintering Behaviorhttps://purl.org/becyt/ford/2.5https://purl.org/becyt/ford/2Two commercial 3mol% yttria-partially stabilized zirconia powders, with 0.3wt% Al2O3 (Y-PSZA) and without Al2O3 (Y-PSZ), and a Zr (IV) precursor were used to produce alumina (Al2O3)-zirconia (ZrO2) slip cast composites. The influence of both the zirconia content and the reduction of zirconia particle size on the sintering behavior, microstructure development and mechanical properties were investigated. The increase in the zirconia content from 10.5 to 22vol% increased the hardness; whereas, above 22vol% ZrO2 the hardness decreased. A significant increase in the fracture toughness with increasing the ZrO2 content over 22vol% was obtained by the stress-induced phase transformation. The flaw size limited the strength below 22vol%; whereas, above 22vol% ZrO2 the strength was controlled by the stress-activated phase transformation. For 10.5vol% ZrO2, the smaller ZrO2 grains produced by using the Zr (IV) precursor were more effective in preventing the Al2O3 grain growth resulting in higher hardness. However, the tetragonal-monoclinic (t-m) transformation of some unstabilized ZrO2 grains during cooling reduced Young's modulus and fracture toughness.Fil: Calambás Pulgarín, Heidy Lorena. 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: Albano, Maria Patricia. 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; ArgentinaElsevier Science Sa2015-07info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/49143Calambás Pulgarín, Heidy Lorena; Albano, Maria Patricia; Three different alumina-zirconia composites: Sintering, microstructure and mechanical properties; Elsevier Science Sa; Materials Science and Engineering A: Structural Materials: Properties, Microstructure and Processing; 639; 7-2015; 136-1440921-5093CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1016/j.msea.2015.05.010info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0921509315005201info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T10:11:58Zoai:ri.conicet.gov.ar:11336/49143instacron: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 10:11:58.306CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Three different alumina-zirconia composites: Sintering, microstructure and mechanical properties
title Three different alumina-zirconia composites: Sintering, microstructure and mechanical properties
spellingShingle Three different alumina-zirconia composites: Sintering, microstructure and mechanical properties
Calambás Pulgarín, Heidy Lorena
Al2o3–Zro2
Mechanical Properties
Microstructure
Sintering Behavior
title_short Three different alumina-zirconia composites: Sintering, microstructure and mechanical properties
title_full Three different alumina-zirconia composites: Sintering, microstructure and mechanical properties
title_fullStr Three different alumina-zirconia composites: Sintering, microstructure and mechanical properties
title_full_unstemmed Three different alumina-zirconia composites: Sintering, microstructure and mechanical properties
title_sort Three different alumina-zirconia composites: Sintering, microstructure and mechanical properties
dc.creator.none.fl_str_mv Calambás Pulgarín, Heidy Lorena
Albano, Maria Patricia
author Calambás Pulgarín, Heidy Lorena
author_facet Calambás Pulgarín, Heidy Lorena
Albano, Maria Patricia
author_role author
author2 Albano, Maria Patricia
author2_role author
dc.subject.none.fl_str_mv Al2o3–Zro2
Mechanical Properties
Microstructure
Sintering Behavior
topic Al2o3–Zro2
Mechanical Properties
Microstructure
Sintering Behavior
purl_subject.fl_str_mv https://purl.org/becyt/ford/2.5
https://purl.org/becyt/ford/2
dc.description.none.fl_txt_mv Two commercial 3mol% yttria-partially stabilized zirconia powders, with 0.3wt% Al2O3 (Y-PSZA) and without Al2O3 (Y-PSZ), and a Zr (IV) precursor were used to produce alumina (Al2O3)-zirconia (ZrO2) slip cast composites. The influence of both the zirconia content and the reduction of zirconia particle size on the sintering behavior, microstructure development and mechanical properties were investigated. The increase in the zirconia content from 10.5 to 22vol% increased the hardness; whereas, above 22vol% ZrO2 the hardness decreased. A significant increase in the fracture toughness with increasing the ZrO2 content over 22vol% was obtained by the stress-induced phase transformation. The flaw size limited the strength below 22vol%; whereas, above 22vol% ZrO2 the strength was controlled by the stress-activated phase transformation. For 10.5vol% ZrO2, the smaller ZrO2 grains produced by using the Zr (IV) precursor were more effective in preventing the Al2O3 grain growth resulting in higher hardness. However, the tetragonal-monoclinic (t-m) transformation of some unstabilized ZrO2 grains during cooling reduced Young's modulus and fracture toughness.
Fil: Calambás Pulgarín, Heidy Lorena. 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: Albano, Maria Patricia. 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 Two commercial 3mol% yttria-partially stabilized zirconia powders, with 0.3wt% Al2O3 (Y-PSZA) and without Al2O3 (Y-PSZ), and a Zr (IV) precursor were used to produce alumina (Al2O3)-zirconia (ZrO2) slip cast composites. The influence of both the zirconia content and the reduction of zirconia particle size on the sintering behavior, microstructure development and mechanical properties were investigated. The increase in the zirconia content from 10.5 to 22vol% increased the hardness; whereas, above 22vol% ZrO2 the hardness decreased. A significant increase in the fracture toughness with increasing the ZrO2 content over 22vol% was obtained by the stress-induced phase transformation. The flaw size limited the strength below 22vol%; whereas, above 22vol% ZrO2 the strength was controlled by the stress-activated phase transformation. For 10.5vol% ZrO2, the smaller ZrO2 grains produced by using the Zr (IV) precursor were more effective in preventing the Al2O3 grain growth resulting in higher hardness. However, the tetragonal-monoclinic (t-m) transformation of some unstabilized ZrO2 grains during cooling reduced Young's modulus and fracture toughness.
publishDate 2015
dc.date.none.fl_str_mv 2015-07
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/11336/49143
Calambás Pulgarín, Heidy Lorena; Albano, Maria Patricia; Three different alumina-zirconia composites: Sintering, microstructure and mechanical properties; Elsevier Science Sa; Materials Science and Engineering A: Structural Materials: Properties, Microstructure and Processing; 639; 7-2015; 136-144
0921-5093
CONICET Digital
CONICET
url http://hdl.handle.net/11336/49143
identifier_str_mv Calambás Pulgarín, Heidy Lorena; Albano, Maria Patricia; Three different alumina-zirconia composites: Sintering, microstructure and mechanical properties; Elsevier Science Sa; Materials Science and Engineering A: Structural Materials: Properties, Microstructure and Processing; 639; 7-2015; 136-144
0921-5093
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.msea.2015.05.010
info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0921509315005201
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 Science Sa
publisher.none.fl_str_mv Elsevier Science Sa
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
_version_ 1842270179701030912
score 13.13397

Publicaciones similares