High-temperature transformations of Zr-pillared bentonite

Autores
Martínez, Juan Manuel; Conconi, María Susana; Booth, Fernando; Rendtorff Birrer, Nicolás Maximiliano
Año de publicación
2020
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
A Zr-modified bentonite (B-OHZr) obtained by intercalation of OH-Zr species was obtained, and its thermal transformations at > 800 °C were studied. Raw clay and B-OHZr were characterized by X-ray diffraction, thermogravimetric and differential thermal analysis, and its sintering behavior was studied by hot-stage microscopy. Two Zr-based phases—tetragonal zirconia and zircon—were observed in thermally treated B-OHZr with a sharp decrease in amorphous glassy phase in comparison with the parental clay. An increase in refractoriness was observed in B-OHZr, enabling the sintering of samples up to 1300 °C, while the parental clay bloated and deformed with thermal treatment. The Zr interlayering enhanced the refractoriness at high temperatures of the parental clay, eliminating thermal expansion (bloating) and enabling sintering at T > 1000 °C. The observed features and thermochemical processes enlighten the temperature usage range of these kinds of materials. Finally these results yield promising features for potential use of these clays for the preparation of ceramic materials with zircon content.
Centro de Tecnología de Recursos Minerales y Cerámica
Materia
Química
Bentonite
PILCs
Zirconia
Thermal behavior
Thermal resistance
Nivel de accesibilidad
acceso abierto
Condiciones de uso
http://creativecommons.org/licenses/by-nc-sa/4.0/
Repositorio
SEDICI (UNLP)
Institución
Universidad Nacional de La Plata
OAI Identificador
oai:sedici.unlp.edu.ar:10915/143708
Acceder
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oai_identifier_str oai:sedici.unlp.edu.ar:10915/143708
network_acronym_str SEDICI
repository_id_str 1329
network_name_str SEDICI (UNLP)
spelling High-temperature transformations of Zr-pillared bentoniteMartínez, Juan ManuelConconi, María SusanaBooth, FernandoRendtorff Birrer, Nicolás MaximilianoQuímicaBentonitePILCsZirconiaThermal behaviorThermal resistanceA Zr-modified bentonite (B-OHZr) obtained by intercalation of OH-Zr species was obtained, and its thermal transformations at > 800 °C were studied. Raw clay and B-OHZr were characterized by X-ray diffraction, thermogravimetric and differential thermal analysis, and its sintering behavior was studied by hot-stage microscopy. Two Zr-based phases—tetragonal zirconia and zircon—were observed in thermally treated B-OHZr with a sharp decrease in amorphous glassy phase in comparison with the parental clay. An increase in refractoriness was observed in B-OHZr, enabling the sintering of samples up to 1300 °C, while the parental clay bloated and deformed with thermal treatment. The Zr interlayering enhanced the refractoriness at high temperatures of the parental clay, eliminating thermal expansion (bloating) and enabling sintering at T > 1000 °C. The observed features and thermochemical processes enlighten the temperature usage range of these kinds of materials. Finally these results yield promising features for potential use of these clays for the preparation of ceramic materials with zircon content.Centro de Tecnología de Recursos Minerales y Cerámica2020-04-23info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArticulohttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdf51-58http://sedici.unlp.edu.ar/handle/10915/143708enginfo:eu-repo/semantics/altIdentifier/issn/1388-6150info:eu-repo/semantics/altIdentifier/issn/1588-2926info:eu-repo/semantics/altIdentifier/doi/10.1007/s10973-020-09681-0info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by-nc-sa/4.0/Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)reponame:SEDICI (UNLP)instname:Universidad Nacional de La Platainstacron:UNLP2025-09-10T12:34:53Zoai:sedici.unlp.edu.ar:10915/143708Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-09-10 12:34:53.827SEDICI (UNLP) - Universidad Nacional de La Platafalse
dc.title.none.fl_str_mv High-temperature transformations of Zr-pillared bentonite
title High-temperature transformations of Zr-pillared bentonite
spellingShingle High-temperature transformations of Zr-pillared bentonite
Martínez, Juan Manuel
Química
Bentonite
PILCs
Zirconia
Thermal behavior
Thermal resistance
title_short High-temperature transformations of Zr-pillared bentonite
title_full High-temperature transformations of Zr-pillared bentonite
title_fullStr High-temperature transformations of Zr-pillared bentonite
title_full_unstemmed High-temperature transformations of Zr-pillared bentonite
title_sort High-temperature transformations of Zr-pillared bentonite
dc.creator.none.fl_str_mv Martínez, Juan Manuel
Conconi, María Susana
Booth, Fernando
Rendtorff Birrer, Nicolás Maximiliano
author Martínez, Juan Manuel
author_facet Martínez, Juan Manuel
Conconi, María Susana
Booth, Fernando
Rendtorff Birrer, Nicolás Maximiliano
author_role author
author2 Conconi, María Susana
Booth, Fernando
Rendtorff Birrer, Nicolás Maximiliano
author2_role author
author
author
dc.subject.none.fl_str_mv Química
Bentonite
PILCs
Zirconia
Thermal behavior
Thermal resistance
topic Química
Bentonite
PILCs
Zirconia
Thermal behavior
Thermal resistance
dc.description.none.fl_txt_mv A Zr-modified bentonite (B-OHZr) obtained by intercalation of OH-Zr species was obtained, and its thermal transformations at > 800 °C were studied. Raw clay and B-OHZr were characterized by X-ray diffraction, thermogravimetric and differential thermal analysis, and its sintering behavior was studied by hot-stage microscopy. Two Zr-based phases—tetragonal zirconia and zircon—were observed in thermally treated B-OHZr with a sharp decrease in amorphous glassy phase in comparison with the parental clay. An increase in refractoriness was observed in B-OHZr, enabling the sintering of samples up to 1300 °C, while the parental clay bloated and deformed with thermal treatment. The Zr interlayering enhanced the refractoriness at high temperatures of the parental clay, eliminating thermal expansion (bloating) and enabling sintering at T > 1000 °C. The observed features and thermochemical processes enlighten the temperature usage range of these kinds of materials. Finally these results yield promising features for potential use of these clays for the preparation of ceramic materials with zircon content.
Centro de Tecnología de Recursos Minerales y Cerámica
description A Zr-modified bentonite (B-OHZr) obtained by intercalation of OH-Zr species was obtained, and its thermal transformations at > 800 °C were studied. Raw clay and B-OHZr were characterized by X-ray diffraction, thermogravimetric and differential thermal analysis, and its sintering behavior was studied by hot-stage microscopy. Two Zr-based phases—tetragonal zirconia and zircon—were observed in thermally treated B-OHZr with a sharp decrease in amorphous glassy phase in comparison with the parental clay. An increase in refractoriness was observed in B-OHZr, enabling the sintering of samples up to 1300 °C, while the parental clay bloated and deformed with thermal treatment. The Zr interlayering enhanced the refractoriness at high temperatures of the parental clay, eliminating thermal expansion (bloating) and enabling sintering at T > 1000 °C. The observed features and thermochemical processes enlighten the temperature usage range of these kinds of materials. Finally these results yield promising features for potential use of these clays for the preparation of ceramic materials with zircon content.
publishDate 2020
dc.date.none.fl_str_mv 2020-04-23
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/10915/143708
url http://sedici.unlp.edu.ar/handle/10915/143708
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/issn/1388-6150
info:eu-repo/semantics/altIdentifier/issn/1588-2926
info:eu-repo/semantics/altIdentifier/doi/10.1007/s10973-020-09681-0
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
http://creativecommons.org/licenses/by-nc-sa/4.0/
Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)
eu_rights_str_mv openAccess
rights_invalid_str_mv http://creativecommons.org/licenses/by-nc-sa/4.0/
Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)
dc.format.none.fl_str_mv application/pdf
51-58
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 12.993085

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