Plasma Dissociated Zircon (PDZ) processing; Influence of the Zr:Si Ratio in the composition, microstructure and thermal recrystallization

Plasma dissociated zircon (PDZ) has attractive applications in ceramic colouring, as well as the preparation of fine ZrO2 crystals, coatings and refractory materials. Generally the PDZ is obtained from different natural or synthetic zircon powders, if the cooling rate is high enough a complete disso...

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Detalles Bibliográficos
Autores principales: Rendtorff Birrer, Nicolás Maximiliano, Suárez, Gustavo, Conconi, María Susana, Singh, S. K., Aglietti, Esteban Fausto
Formato: Articulo
Lenguaje:Inglés
Publicado: 2012
Materias:
Química
Zircon
Zirconia
Plasma processing
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/109494
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-109494
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Química
Zircon
Zirconia
Plasma processing
spellingShingle Química
Zircon
Zirconia
Plasma processing
Rendtorff Birrer, Nicolás Maximiliano
Suárez, Gustavo
Conconi, María Susana
Singh, S. K.
Aglietti, Esteban Fausto
Plasma Dissociated Zircon (PDZ) processing; Influence of the Zr:Si Ratio in the composition, microstructure and thermal recrystallization
topic_facet Química
Zircon
Zirconia
Plasma processing
description Plasma dissociated zircon (PDZ) has attractive applications in ceramic colouring, as well as the preparation of fine ZrO2 crystals, coatings and refractory materials. Generally the PDZ is obtained from different natural or synthetic zircon powders, if the cooling rate is high enough a complete dissociation is achieved, with rounded (dendritic) zirconia grains imbibed in a fused silica (non crystalline) matrix. The principal objective of this work is to establish the influence of the incorporation of both products of the zircon dissociation (fused silica and crystalline zirconia) to the initial powders mixture utilized for the processing of PDZ in an indigenous thermal plasma argon furnace. Both structural and microstructural characterization was carried out. A thermal annealing at 1500ºC with different soaking time (1-15 hours) was completed in order to establish the thermal stability to the thermodynamically favoured recombination, showing that after this time a recombination was achieved, and this behaviour was not influenced by the Zr:Si ratio. The addition of fused silica resulted in an important decrease of the zirconia grains size, while the zirconia addition had the opposite result, showing that within this range (1- with this processing variable. The present processing route showed an alternative way for obtaining different size of monoclinic zirconia powder.
format Articulo
Articulo
author Rendtorff Birrer, Nicolás Maximiliano
Suárez, Gustavo
Conconi, María Susana
Singh, S. K.
Aglietti, Esteban Fausto
author_facet Rendtorff Birrer, Nicolás Maximiliano
Suárez, Gustavo
Conconi, María Susana
Singh, S. K.
Aglietti, Esteban Fausto
author_sort Rendtorff Birrer, Nicolás Maximiliano
title Plasma Dissociated Zircon (PDZ) processing; Influence of the Zr:Si Ratio in the composition, microstructure and thermal recrystallization
title_short Plasma Dissociated Zircon (PDZ) processing; Influence of the Zr:Si Ratio in the composition, microstructure and thermal recrystallization
title_full Plasma Dissociated Zircon (PDZ) processing; Influence of the Zr:Si Ratio in the composition, microstructure and thermal recrystallization
title_fullStr Plasma Dissociated Zircon (PDZ) processing; Influence of the Zr:Si Ratio in the composition, microstructure and thermal recrystallization
title_full_unstemmed Plasma Dissociated Zircon (PDZ) processing; Influence of the Zr:Si Ratio in the composition, microstructure and thermal recrystallization
title_sort plasma dissociated zircon (pdz) processing; influence of the zr:si ratio in the composition, microstructure and thermal recrystallization
publishDate 2012
url http://sedici.unlp.edu.ar/handle/10915/109494
work_keys_str_mv AT rendtorffbirrernicolasmaximiliano plasmadissociatedzirconpdzprocessinginfluenceofthezrsiratiointhecompositionmicrostructureandthermalrecrystallization
AT suarezgustavo plasmadissociatedzirconpdzprocessinginfluenceofthezrsiratiointhecompositionmicrostructureandthermalrecrystallization
AT conconimariasusana plasmadissociatedzirconpdzprocessinginfluenceofthezrsiratiointhecompositionmicrostructureandthermalrecrystallization
AT singhsk plasmadissociatedzirconpdzprocessinginfluenceofthezrsiratiointhecompositionmicrostructureandthermalrecrystallization
AT agliettiestebanfausto plasmadissociatedzirconpdzprocessinginfluenceofthezrsiratiointhecompositionmicrostructureandthermalrecrystallization
bdutipo_str Repositorios
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