Densification of lightweight aluminum borate ceramics by direct sintering of milled powders

Dense aluminum borate (Al18B4O33) materials were processed by simple milling-sintering of aluminum borate powders obtained by reacting calcined alumina and fine boric acid at temperatures of around 600–800ºC. The effect of milling on the grain size and sintering behavior of the aluminum borate powde...

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Autores principales: Hernández, María Florencia, Suárez, Gustavo, Baudin, C., Pena Castro, P., Aglietti, Esteban Fausto, Rendtorff Birrer, Nicolás Maximiliano
Formato: Articulo
Lenguaje:Inglés
Publicado: 2018
Materias:
Química
Aluminum borate
Sintering
Processing
Properties
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/118797
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-118797
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Química
Aluminum borate
Sintering
Processing
Properties
spellingShingle Química
Aluminum borate
Sintering
Processing
Properties
Hernández, María Florencia
Suárez, Gustavo
Baudin, C.
Pena Castro, P.
Aglietti, Esteban Fausto
Rendtorff Birrer, Nicolás Maximiliano
Densification of lightweight aluminum borate ceramics by direct sintering of milled powders
topic_facet Química
Aluminum borate
Sintering
Processing
Properties
description Dense aluminum borate (Al18B4O33) materials were processed by simple milling-sintering of aluminum borate powders obtained by reacting calcined alumina and fine boric acid at temperatures of around 600–800ºC. The effect of milling on the grain size and sintering behavior of the aluminum borate powders was also determined. Sintering began at around 1000°C and was limited by the thermal decomposition (T > 1300 °C) of the borate in to alumina and boron oxide, which volatilize at this temperature. Sub-angular and medium spherical sintered grain microstructures were developed. A hardness of 6 GPa and bulk density below 2.5 g/cm3 were achieved. The results are accomplished encouraging the structural applications of borate materials.
format Articulo
Articulo
author Hernández, María Florencia
Suárez, Gustavo
Baudin, C.
Pena Castro, P.
Aglietti, Esteban Fausto
Rendtorff Birrer, Nicolás Maximiliano
author_facet Hernández, María Florencia
Suárez, Gustavo
Baudin, C.
Pena Castro, P.
Aglietti, Esteban Fausto
Rendtorff Birrer, Nicolás Maximiliano
author_sort Hernández, María Florencia
title Densification of lightweight aluminum borate ceramics by direct sintering of milled powders
title_short Densification of lightweight aluminum borate ceramics by direct sintering of milled powders
title_full Densification of lightweight aluminum borate ceramics by direct sintering of milled powders
title_fullStr Densification of lightweight aluminum borate ceramics by direct sintering of milled powders
title_full_unstemmed Densification of lightweight aluminum borate ceramics by direct sintering of milled powders
title_sort densification of lightweight aluminum borate ceramics by direct sintering of milled powders
publishDate 2018
url http://sedici.unlp.edu.ar/handle/10915/118797
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