Dense Zircon (ZrSiO<SUB>4</SUB>) Ceramics by a Simple Milling-Sintering Route

In this work, a simple milling sintering route (pressure less) to process dense zircon ceramics from fine (D₅₀ 0.8 µm) zircon powders is explored. Particularly, the milling time effect (0-120 min) and the maximum sintering temperature (1400-1600 °C) were studied. The sintering grade developed micros...

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Autores principales: Gauna, Matías Roberto, Conconi, María Susana, Suárez, Gustavo, Aglietti, Esteban Fausto, Rendtorff Birrer, Nicolás Maximiliano
Formato: Articulo
Lenguaje:Inglés
Publicado: 2018
Materias:
Ciencias Exactas
Química
Zircon
Processing
Milling
Sintering
XRD-Rietveld
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/128588
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-128588
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Ciencias Exactas
Química
Zircon
Processing
Milling
Sintering
XRD-Rietveld
spellingShingle Ciencias Exactas
Química
Zircon
Processing
Milling
Sintering
XRD-Rietveld
Gauna, Matías Roberto
Conconi, María Susana
Suárez, Gustavo
Aglietti, Esteban Fausto
Rendtorff Birrer, Nicolás Maximiliano
Dense Zircon (ZrSiO<SUB>4</SUB>) Ceramics by a Simple Milling-Sintering Route
topic_facet Ciencias Exactas
Química
Zircon
Processing
Milling
Sintering
XRD-Rietveld
description In this work, a simple milling sintering route (pressure less) to process dense zircon ceramics from fine (D₅₀ 0.8 µm) zircon powders is explored. Particularly, the milling time effect (0-120 min) and the maximum sintering temperature (1400-1600 °C) were studied. The sintering grade developed microstructure and Vickers hardness (Hv) were evaluated and correlated. The dissociation of silicate into (monoclinic and tetragonal) zirconia and silica was evaluated by X-ray diffraction followed by the Rietveld method; it was found to be below 10 wt% in all the studied ranges. The sintering was enhanced by the milling pretreatment. No sintering additives were incorporated. Dense zircon (porosity below 1 %) ceramics were obtained by a simple milling-sintering route of this high refractory powder at 100-200 °C below the sintering temperature used with conventional processing routes to obtain equivalent final properties. The Vickers hardness reached: 9.0 GPa.
format Articulo
Articulo
author Gauna, Matías Roberto
Conconi, María Susana
Suárez, Gustavo
Aglietti, Esteban Fausto
Rendtorff Birrer, Nicolás Maximiliano
author_facet Gauna, Matías Roberto
Conconi, María Susana
Suárez, Gustavo
Aglietti, Esteban Fausto
Rendtorff Birrer, Nicolás Maximiliano
author_sort Gauna, Matías Roberto
title Dense Zircon (ZrSiO<SUB>4</SUB>) Ceramics by a Simple Milling-Sintering Route
title_short Dense Zircon (ZrSiO<SUB>4</SUB>) Ceramics by a Simple Milling-Sintering Route
title_full Dense Zircon (ZrSiO<SUB>4</SUB>) Ceramics by a Simple Milling-Sintering Route
title_fullStr Dense Zircon (ZrSiO<SUB>4</SUB>) Ceramics by a Simple Milling-Sintering Route
title_full_unstemmed Dense Zircon (ZrSiO<SUB>4</SUB>) Ceramics by a Simple Milling-Sintering Route
title_sort dense zircon (zrsio<sub>4</sub>) ceramics by a simple milling-sintering route
publishDate 2018
url http://sedici.unlp.edu.ar/handle/10915/128588
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