Effect of TiO₂ in Fine Zircon Sintering and Properties

Autores
Gauna, Matías Roberto; Martínez, Juan Manuel; Conconi, María Susana; Suárez, Gustavo; Rendtorff Birrer, Nicolás Maximiliano
Año de publicación
2021
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The effect of the TiO₂ addition in the ceramic processing of dense zircon materials from zircon fine powders was established. The addition of TiO₂ (5-10 wt%) permitted to obtain dense ceramics at lower temperatures (100-150 oC below), with comparable mechanical behavior. The thermochemical processes were described after a multi-technique experimental approach, which included a sintering analysis, powder X-Ray diffraction analysis (XRD), scanning electronic microscopy (SEM) and Vickers hardness of the polished dense obtained ceramics. After 1400 oC heating programs, the added TiO₂ acts as a sintering aid with no important chemical reactions, and presented improved mechanical behavior in comparison with pure zircon ceramics. On the other side, in samples fired at 1500 oC, TiO₂ partially (≈50 %) reacts with zircon, forming ZrTiO4, while the formed SiO₂ goes to the grain boundaries. Samples with 5 wt% TiO₂ present better mechanical behavior than the ones with 10 wt%. The performed mechanical characterization indicates the merits of the material processed by this inexpensive processing route. Developed density, hardness (≈10 GPa) and fracture toughness (≈2 MPa.m-1/2) are comparable with the best figures reported.
Facultad de Ciencias Exactas
Centro de Tecnología de Recursos Minerales y Cerámica
Facultad de Ingeniería
Materia
Ciencias Exactas
Química
Ingeniería
Zircon
TiO2
Processing
Sintering
Properties
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:10915/128599

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oai_identifier_str oai:sedici.unlp.edu.ar:10915/128599
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network_name_str SEDICI (UNLP)
spelling Effect of TiO₂ in Fine Zircon Sintering and PropertiesGauna, Matías RobertoMartínez, Juan ManuelConconi, María SusanaSuárez, GustavoRendtorff Birrer, Nicolás MaximilianoCiencias ExactasQuímicaIngenieríaZirconTiO2ProcessingSinteringPropertiesThe effect of the TiO₂ addition in the ceramic processing of dense zircon materials from zircon fine powders was established. The addition of TiO₂ (5-10 wt%) permitted to obtain dense ceramics at lower temperatures (100-150 oC below), with comparable mechanical behavior. The thermochemical processes were described after a multi-technique experimental approach, which included a sintering analysis, powder X-Ray diffraction analysis (XRD), scanning electronic microscopy (SEM) and Vickers hardness of the polished dense obtained ceramics. After 1400 oC heating programs, the added TiO₂ acts as a sintering aid with no important chemical reactions, and presented improved mechanical behavior in comparison with pure zircon ceramics. On the other side, in samples fired at 1500 oC, TiO₂ partially (≈50 %) reacts with zircon, forming ZrTiO4, while the formed SiO₂ goes to the grain boundaries. Samples with 5 wt% TiO₂ present better mechanical behavior than the ones with 10 wt%. The performed mechanical characterization indicates the merits of the material processed by this inexpensive processing route. Developed density, hardness (≈10 GPa) and fracture toughness (≈2 MPa.m<sup>-1/2</sup>) are comparable with the best figures reported.Facultad de Ciencias ExactasCentro de Tecnología de Recursos Minerales y CerámicaFacultad de Ingeniería2021info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArticulohttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdf267-283http://sedici.unlp.edu.ar/handle/10915/128599enginfo:eu-repo/semantics/altIdentifier/issn/0350-820Xinfo:eu-repo/semantics/altIdentifier/issn/1820-7413info:eu-repo/semantics/altIdentifier/doi/10.2298/sos2102267ginfo: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:UNLP2025-09-29T11:31:03Zoai:sedici.unlp.edu.ar:10915/128599Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-09-29 11:31:03.965SEDICI (UNLP) - Universidad Nacional de La Platafalse
dc.title.none.fl_str_mv Effect of TiO₂ in Fine Zircon Sintering and Properties
title Effect of TiO₂ in Fine Zircon Sintering and Properties
spellingShingle Effect of TiO₂ in Fine Zircon Sintering and Properties
Gauna, Matías Roberto
Ciencias Exactas
Química
Ingeniería
Zircon
TiO2
Processing
Sintering
Properties
title_short Effect of TiO₂ in Fine Zircon Sintering and Properties
title_full Effect of TiO₂ in Fine Zircon Sintering and Properties
title_fullStr Effect of TiO₂ in Fine Zircon Sintering and Properties
title_full_unstemmed Effect of TiO₂ in Fine Zircon Sintering and Properties
title_sort Effect of TiO₂ in Fine Zircon Sintering and Properties
dc.creator.none.fl_str_mv Gauna, Matías Roberto
Martínez, Juan Manuel
Conconi, María Susana
Suárez, Gustavo
Rendtorff Birrer, Nicolás Maximiliano
author Gauna, Matías Roberto
author_facet Gauna, Matías Roberto
Martínez, Juan Manuel
Conconi, María Susana
Suárez, Gustavo
Rendtorff Birrer, Nicolás Maximiliano
author_role author
author2 Martínez, Juan Manuel
Conconi, María Susana
Suárez, Gustavo
Rendtorff Birrer, Nicolás Maximiliano
author2_role author
author
author
author
dc.subject.none.fl_str_mv Ciencias Exactas
Química
Ingeniería
Zircon
TiO2
Processing
Sintering
Properties
topic Ciencias Exactas
Química
Ingeniería
Zircon
TiO2
Processing
Sintering
Properties
dc.description.none.fl_txt_mv The effect of the TiO₂ addition in the ceramic processing of dense zircon materials from zircon fine powders was established. The addition of TiO₂ (5-10 wt%) permitted to obtain dense ceramics at lower temperatures (100-150 oC below), with comparable mechanical behavior. The thermochemical processes were described after a multi-technique experimental approach, which included a sintering analysis, powder X-Ray diffraction analysis (XRD), scanning electronic microscopy (SEM) and Vickers hardness of the polished dense obtained ceramics. After 1400 oC heating programs, the added TiO₂ acts as a sintering aid with no important chemical reactions, and presented improved mechanical behavior in comparison with pure zircon ceramics. On the other side, in samples fired at 1500 oC, TiO₂ partially (≈50 %) reacts with zircon, forming ZrTiO4, while the formed SiO₂ goes to the grain boundaries. Samples with 5 wt% TiO₂ present better mechanical behavior than the ones with 10 wt%. The performed mechanical characterization indicates the merits of the material processed by this inexpensive processing route. Developed density, hardness (≈10 GPa) and fracture toughness (≈2 MPa.m<sup>-1/2</sup>) are comparable with the best figures reported.
Facultad de Ciencias Exactas
Centro de Tecnología de Recursos Minerales y Cerámica
Facultad de Ingeniería
description The effect of the TiO₂ addition in the ceramic processing of dense zircon materials from zircon fine powders was established. The addition of TiO₂ (5-10 wt%) permitted to obtain dense ceramics at lower temperatures (100-150 oC below), with comparable mechanical behavior. The thermochemical processes were described after a multi-technique experimental approach, which included a sintering analysis, powder X-Ray diffraction analysis (XRD), scanning electronic microscopy (SEM) and Vickers hardness of the polished dense obtained ceramics. After 1400 oC heating programs, the added TiO₂ acts as a sintering aid with no important chemical reactions, and presented improved mechanical behavior in comparison with pure zircon ceramics. On the other side, in samples fired at 1500 oC, TiO₂ partially (≈50 %) reacts with zircon, forming ZrTiO4, while the formed SiO₂ goes to the grain boundaries. Samples with 5 wt% TiO₂ present better mechanical behavior than the ones with 10 wt%. The performed mechanical characterization indicates the merits of the material processed by this inexpensive processing route. Developed density, hardness (≈10 GPa) and fracture toughness (≈2 MPa.m<sup>-1/2</sup>) are comparable with the best figures reported.
publishDate 2021
dc.date.none.fl_str_mv 2021
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/10915/128599
url http://sedici.unlp.edu.ar/handle/10915/128599
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/issn/0350-820X
info:eu-repo/semantics/altIdentifier/issn/1820-7413
info:eu-repo/semantics/altIdentifier/doi/10.2298/sos2102267g
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
267-283
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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