Heterocoagulation and SPS sintering of sulfonitric-treated CNT and 8YZ nanopowders

Autores
Gómez, Sofía; Rendtorff Birrer, Nicolás Maximiliano; Aglietti, Esteban Fausto; Sakka, Yoshio; Estili, Mehdi; Suárez, Gustavo
Año de publicación
2019
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Reinforcement of ceramic composites using carbon nanotubes (CNT) has been extensively studied for materials such as Al2O3, Si3N4 and tetragonal ZrO2. Knowledge concerning CNT composites based on a matrix of cubic zirconia (8YZ) is in short supply, however. This paper presents a study on the addition of 1 wt% CNT to an 8YZ matrix. CNT was functionalized by sulfonitric treatment at three different temperatures: 50, 90 and 130°C. To obtain strong bond between the CNT and the 8YZ particles, the composites were produced by electrostatic heterocoagulation followed by consolidation by spark plasma sintering (SPS). Dense 8YZCNT composites were successfully processed by the proposed route. A study of the influence of the surface treatment temperature of CNT on the final properties of ceramics is also presented. CNTs are dispersed uniformly and individually within the 8YZ matrix in 8YZ-CNT 90 and 8YZ-CNT130 composites. 8YZ-CNT50 displayed a less uniform CNT distribution and the largest grain size, suggesting that the lowest temperature acid pretreatment is less effective for the subsequent heterocoagulation mixture. The reinforcement of ceramic materials by the addition of 1 wt% CNT was confirmed by an evaluation of fracture toughness.
Centro de Tecnología de Recursos Minerales y Cerámica
Materia
Química
Carbon nanotubes
Composites
Zirconia
Processing
SPS sintering
Nivel de accesibilidad
acceso abierto
Condiciones de uso
http://creativecommons.org/licenses/by/4.0/
Repositorio
SEDICI (UNLP)
Institución
Universidad Nacional de La Plata
OAI Identificador
oai:sedici.unlp.edu.ar:10915/118804
Acceder
id SEDICI_3863457338a626cbc2fa765277ab43ad
oai_identifier_str oai:sedici.unlp.edu.ar:10915/118804
network_acronym_str SEDICI
repository_id_str 1329
network_name_str SEDICI (UNLP)
spelling Heterocoagulation and SPS sintering of sulfonitric-treated CNT and 8YZ nanopowdersGómez, SofíaRendtorff Birrer, Nicolás MaximilianoAglietti, Esteban FaustoSakka, YoshioEstili, MehdiSuárez, GustavoQuímicaCarbon nanotubesCompositesZirconiaProcessingSPS sinteringReinforcement of ceramic composites using carbon nanotubes (CNT) has been extensively studied for materials such as Al2O3, Si3N4 and tetragonal ZrO2. Knowledge concerning CNT composites based on a matrix of cubic zirconia (8YZ) is in short supply, however. This paper presents a study on the addition of 1 wt% CNT to an 8YZ matrix. CNT was functionalized by sulfonitric treatment at three different temperatures: 50, 90 and 130°C. To obtain strong bond between the CNT and the 8YZ particles, the composites were produced by electrostatic heterocoagulation followed by consolidation by spark plasma sintering (SPS). Dense 8YZCNT composites were successfully processed by the proposed route. A study of the influence of the surface treatment temperature of CNT on the final properties of ceramics is also presented. CNTs are dispersed uniformly and individually within the 8YZ matrix in 8YZ-CNT 90 and 8YZ-CNT130 composites. 8YZ-CNT50 displayed a less uniform CNT distribution and the largest grain size, suggesting that the lowest temperature acid pretreatment is less effective for the subsequent heterocoagulation mixture. The reinforcement of ceramic materials by the addition of 1 wt% CNT was confirmed by an evaluation of fracture toughness.Centro de Tecnología de Recursos Minerales y Cerámica2019info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArticulohttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdf238-246http://sedici.unlp.edu.ar/handle/10915/118804enginfo:eu-repo/semantics/altIdentifier/issn/2187-0764info:eu-repo/semantics/altIdentifier/doi/10.1080/21870764.2019.1604608info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by/4.0/Creative Commons Attribution 4.0 International (CC BY 4.0)reponame:SEDICI (UNLP)instname:Universidad Nacional de La Platainstacron:UNLP2025-10-15T11:19:50Zoai:sedici.unlp.edu.ar:10915/118804Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-10-15 11:19:50.672SEDICI (UNLP) - Universidad Nacional de La Platafalse
dc.title.none.fl_str_mv Heterocoagulation and SPS sintering of sulfonitric-treated CNT and 8YZ nanopowders
title Heterocoagulation and SPS sintering of sulfonitric-treated CNT and 8YZ nanopowders
spellingShingle Heterocoagulation and SPS sintering of sulfonitric-treated CNT and 8YZ nanopowders
Gómez, Sofía
Química
Carbon nanotubes
Composites
Zirconia
Processing
SPS sintering
title_short Heterocoagulation and SPS sintering of sulfonitric-treated CNT and 8YZ nanopowders
title_full Heterocoagulation and SPS sintering of sulfonitric-treated CNT and 8YZ nanopowders
title_fullStr Heterocoagulation and SPS sintering of sulfonitric-treated CNT and 8YZ nanopowders
title_full_unstemmed Heterocoagulation and SPS sintering of sulfonitric-treated CNT and 8YZ nanopowders
title_sort Heterocoagulation and SPS sintering of sulfonitric-treated CNT and 8YZ nanopowders
dc.creator.none.fl_str_mv Gómez, Sofía
Rendtorff Birrer, Nicolás Maximiliano
Aglietti, Esteban Fausto
Sakka, Yoshio
Estili, Mehdi
Suárez, Gustavo
author Gómez, Sofía
author_facet Gómez, Sofía
Rendtorff Birrer, Nicolás Maximiliano
Aglietti, Esteban Fausto
Sakka, Yoshio
Estili, Mehdi
Suárez, Gustavo
author_role author
author2 Rendtorff Birrer, Nicolás Maximiliano
Aglietti, Esteban Fausto
Sakka, Yoshio
Estili, Mehdi
Suárez, Gustavo
author2_role author
author
author
author
author
dc.subject.none.fl_str_mv Química
Carbon nanotubes
Composites
Zirconia
Processing
SPS sintering
topic Química
Carbon nanotubes
Composites
Zirconia
Processing
SPS sintering
dc.description.none.fl_txt_mv Reinforcement of ceramic composites using carbon nanotubes (CNT) has been extensively studied for materials such as Al2O3, Si3N4 and tetragonal ZrO2. Knowledge concerning CNT composites based on a matrix of cubic zirconia (8YZ) is in short supply, however. This paper presents a study on the addition of 1 wt% CNT to an 8YZ matrix. CNT was functionalized by sulfonitric treatment at three different temperatures: 50, 90 and 130°C. To obtain strong bond between the CNT and the 8YZ particles, the composites were produced by electrostatic heterocoagulation followed by consolidation by spark plasma sintering (SPS). Dense 8YZCNT composites were successfully processed by the proposed route. A study of the influence of the surface treatment temperature of CNT on the final properties of ceramics is also presented. CNTs are dispersed uniformly and individually within the 8YZ matrix in 8YZ-CNT 90 and 8YZ-CNT130 composites. 8YZ-CNT50 displayed a less uniform CNT distribution and the largest grain size, suggesting that the lowest temperature acid pretreatment is less effective for the subsequent heterocoagulation mixture. The reinforcement of ceramic materials by the addition of 1 wt% CNT was confirmed by an evaluation of fracture toughness.
Centro de Tecnología de Recursos Minerales y Cerámica
description Reinforcement of ceramic composites using carbon nanotubes (CNT) has been extensively studied for materials such as Al2O3, Si3N4 and tetragonal ZrO2. Knowledge concerning CNT composites based on a matrix of cubic zirconia (8YZ) is in short supply, however. This paper presents a study on the addition of 1 wt% CNT to an 8YZ matrix. CNT was functionalized by sulfonitric treatment at three different temperatures: 50, 90 and 130°C. To obtain strong bond between the CNT and the 8YZ particles, the composites were produced by electrostatic heterocoagulation followed by consolidation by spark plasma sintering (SPS). Dense 8YZCNT composites were successfully processed by the proposed route. A study of the influence of the surface treatment temperature of CNT on the final properties of ceramics is also presented. CNTs are dispersed uniformly and individually within the 8YZ matrix in 8YZ-CNT 90 and 8YZ-CNT130 composites. 8YZ-CNT50 displayed a less uniform CNT distribution and the largest grain size, suggesting that the lowest temperature acid pretreatment is less effective for the subsequent heterocoagulation mixture. The reinforcement of ceramic materials by the addition of 1 wt% CNT was confirmed by an evaluation of fracture toughness.
publishDate 2019
dc.date.none.fl_str_mv 2019
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Articulo
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://sedici.unlp.edu.ar/handle/10915/118804
url http://sedici.unlp.edu.ar/handle/10915/118804
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/issn/2187-0764
info:eu-repo/semantics/altIdentifier/doi/10.1080/21870764.2019.1604608
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
http://creativecommons.org/licenses/by/4.0/
Creative Commons Attribution 4.0 International (CC BY 4.0)
eu_rights_str_mv openAccess
rights_invalid_str_mv http://creativecommons.org/licenses/by/4.0/
Creative Commons Attribution 4.0 International (CC BY 4.0)
dc.format.none.fl_str_mv application/pdf
238-246
dc.source.none.fl_str_mv reponame:SEDICI (UNLP)
instname:Universidad Nacional de La Plata
instacron:UNLP
reponame_str SEDICI (UNLP)
collection SEDICI (UNLP)
instname_str Universidad Nacional de La Plata
instacron_str UNLP
institution UNLP
repository.name.fl_str_mv SEDICI (UNLP) - Universidad Nacional de La Plata
repository.mail.fl_str_mv alira@sedici.unlp.edu.ar
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score 13.22299

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