Effect of impurities and sintering temperature on properties of MgO-CaZrO3 ceramic

CaZrO<sub>3</sub> -MgO ceramics are useful as refractories in kilns for the cement production. One method of manufacture of such ceramics is by sintering from m-ZrO<sub>2</sub> and dolomite MgCa(CO<sub>3</sub>)<sub>2</sub> mixtures. In this work electr...

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Detalles Bibliográficos
Autores principales: Booth, Raúl Fernando Nicolás, Garrido, Liliana Beatriz, Aglietti, Esteban Fausto
Formato: Articulo
Lenguaje:Inglés
Publicado: 2013
Materias:
Ingeniería en Materiales
Dolomite
Zirconia
Impurities
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/100264
https://ri.conicet.gov.ar/11336/24394
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-100264
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Ingeniería en Materiales
Dolomite
Zirconia
Impurities
spellingShingle Ingeniería en Materiales
Dolomite
Zirconia
Impurities
Booth, Raúl Fernando Nicolás
Garrido, Liliana Beatriz
Aglietti, Esteban Fausto
Effect of impurities and sintering temperature on properties of MgO-CaZrO3 ceramic
topic_facet Ingeniería en Materiales
Dolomite
Zirconia
Impurities
description CaZrO<sub>3</sub> -MgO ceramics are useful as refractories in kilns for the cement production. One method of manufacture of such ceramics is by sintering from m-ZrO<sub>2</sub> and dolomite MgCa(CO<sub>3</sub>)<sub>2</sub> mixtures. In this work electrofused m-ZrO<sub>2</sub> grains (fraction <M325) and two Argentinean dolomites with different mineralogical compositions were used as raw materials. Ceramics were obtained by the conventional powder method of uniaxial pressing and subsequent sintering at 1400 to 1680 °C. The influence of the different mineralogy of the dolomites and sintering temperature on the properties of the composites was investigated. Ceramics had 20-30% porosity with representative SEM-EDX microstructure constituted by CaZrO<sub>3</sub> agglomerates of variable size (~100µm) and MgO grains (size <50µm) containing some unreacted m-ZrO<sub>2</sub> grains. The elastic modulus and flexural strength were correlated with the presence of impurities of the dolomite, porosity and microstructure of the ceramic.
format Articulo
Articulo
author Booth, Raúl Fernando Nicolás
Garrido, Liliana Beatriz
Aglietti, Esteban Fausto
author_facet Booth, Raúl Fernando Nicolás
Garrido, Liliana Beatriz
Aglietti, Esteban Fausto
author_sort Booth, Raúl Fernando Nicolás
title Effect of impurities and sintering temperature on properties of MgO-CaZrO3 ceramic
title_short Effect of impurities and sintering temperature on properties of MgO-CaZrO3 ceramic
title_full Effect of impurities and sintering temperature on properties of MgO-CaZrO3 ceramic
title_fullStr Effect of impurities and sintering temperature on properties of MgO-CaZrO3 ceramic
title_full_unstemmed Effect of impurities and sintering temperature on properties of MgO-CaZrO3 ceramic
title_sort effect of impurities and sintering temperature on properties of mgo-cazro3 ceramic
publishDate 2013
url http://sedici.unlp.edu.ar/handle/10915/100264
https://ri.conicet.gov.ar/11336/24394
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AT garridolilianabeatriz effectofimpuritiesandsinteringtemperatureonpropertiesofmgocazro3ceramic
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