Flash sintering of zircon: rapid consolidation of an ultrahigh bandgap ceramic

Zircon (ZrSiO4) is a refractory structural ceramic material difficult to consolidate because of its thermal dissociation into ZrO2 and SiO2. Addition of sintering aids can improve its densification, but with detrimental effects on high temperature mechanical properties and corrosion resistance. In...

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Detalles Bibliográficos
Autores principales: Martínez, Juan Manuel, Biesuz, Mattia, Dong, Jian, Gauna, Matías Roberto, Suárez, Gustavo, Sglavo, Vincenzo M., Lin, Hua-Tay, Grasso, Salvatore, Rendtorff Birrer, Nicolás Maximiliano
Formato: Articulo
Lenguaje:Inglés
Publicado: 2021
Materias:
Química
Flash sintering
Zircon
Ultrahigh bandgap ceramics
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/118799
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-118799
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Química
Flash sintering
Zircon
Ultrahigh bandgap ceramics
spellingShingle Química
Flash sintering
Zircon
Ultrahigh bandgap ceramics
Martínez, Juan Manuel
Biesuz, Mattia
Dong, Jian
Gauna, Matías Roberto
Suárez, Gustavo
Sglavo, Vincenzo M.
Lin, Hua-Tay
Grasso, Salvatore
Rendtorff Birrer, Nicolás Maximiliano
Flash sintering of zircon: rapid consolidation of an ultrahigh bandgap ceramic
topic_facet Química
Flash sintering
Zircon
Ultrahigh bandgap ceramics
description Zircon (ZrSiO4) is a refractory structural ceramic material difficult to consolidate because of its thermal dissociation into ZrO2 and SiO2. Addition of sintering aids can improve its densification, but with detrimental effects on high temperature mechanical properties and corrosion resistance. In this work, zircon was consolidated by employing the Flash Sintering (FS) technique at a furnace temperature of 1250°C under an electrical field of 1000 V cm−1. The decomposition of zircon was significantly reduced by lowering sintering time and current density. Unlike conventional sintering methods, FS approach allowed to track the degree of dissociation by measuring the electrical resistivity, providing a promising route for the consolidation of such materials. Although the obtained zircon ceramics are characterized by lower density and hardness/toughness than those sintered by alternative advanced techniques (like SPS of HEBM activated powders), the consolidation can be carried out at remarkably reduced furnace temperature.
format Articulo
Articulo
author Martínez, Juan Manuel
Biesuz, Mattia
Dong, Jian
Gauna, Matías Roberto
Suárez, Gustavo
Sglavo, Vincenzo M.
Lin, Hua-Tay
Grasso, Salvatore
Rendtorff Birrer, Nicolás Maximiliano
author_facet Martínez, Juan Manuel
Biesuz, Mattia
Dong, Jian
Gauna, Matías Roberto
Suárez, Gustavo
Sglavo, Vincenzo M.
Lin, Hua-Tay
Grasso, Salvatore
Rendtorff Birrer, Nicolás Maximiliano
author_sort Martínez, Juan Manuel
title Flash sintering of zircon: rapid consolidation of an ultrahigh bandgap ceramic
title_short Flash sintering of zircon: rapid consolidation of an ultrahigh bandgap ceramic
title_full Flash sintering of zircon: rapid consolidation of an ultrahigh bandgap ceramic
title_fullStr Flash sintering of zircon: rapid consolidation of an ultrahigh bandgap ceramic
title_full_unstemmed Flash sintering of zircon: rapid consolidation of an ultrahigh bandgap ceramic
title_sort flash sintering of zircon: rapid consolidation of an ultrahigh bandgap ceramic
publishDate 2021
url http://sedici.unlp.edu.ar/handle/10915/118799
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