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Artículo

Partially stabilized Zirconia (3y-ZrO2) aluminum borate (Al18B4O33) needles composite materials by direct sintering

Martinez, Juan ManuelIcon ; Hernández, Maria FlorenciaIcon ; Booth, Raul Fernando NicolasIcon ; Lopez, Paula VirginiaIcon ; Suarez, GustavoIcon ; Conconi, María Susana; Rendtorff Birrer, Nicolás MaximilianoIcon
Fecha de publicación: 02/2021
Editorial: Int Inst Science Sintering (i I S S)
Revista: Science Of Sintering
ISSN: 0350-820X
Idioma: Inglés
Tipo de recurso: Artículo publicado
Clasificación temática:
Cerámicos

Resumen

Novel 1:1 Yttria partially stabilized zirconia (PSZ) - aluminum borate (AB: Al11B4O33) ceramic composites were prepared and characterized by a simple direct sintering process of PSZ-AB mixtures. Sintering was performed below 1300 °C to minimize the decomposition of borate. Phases were corroborated by XRD. SEM permitted to characterize the microstructure as interlocking needles of AB - rounded by PSZ grains. Porous microstructure configuration was achieved by the proposed processing route. Porosity was within 30% for samples thermally treated at 1200 and 1300 °C. Mechanical behavior was evaluated by diametral compression. A fragile behavior was observed. Both strength and apparent Young modulus were evaluated being ≈30 MPa and ≈3 GPa respectively; values four times higher than the corresponding alumina-AB composite. This is more important when firing at higher temperature. The density of the obtained composites coupled with the mechanical behavior are the main characteristics of this novel composite with potential structural, insulating and filtering applications.
Palabras clave: ALUMINUM BORATE , COMPOSITES , STABILIZED ZIRCONIA
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info:eu-repo/semantics/openAccess Excepto donde se diga explícitamente, este item se publica bajo la siguiente descripción: Creative Commons Attribution-NonCommercial-ShareAlike 2.5 Unported (CC BY-NC-SA 2.5)
Identificadores
URI: http://hdl.handle.net/11336/181140
URL: http://www.doiserbia.nb.rs/img/doi/0350-820X/2021/0350-820X2101009M.pdf
DOI: http://dx.doi.org/10.2298/SOS2101009M
Colecciones
Articulos(CETMIC)
Articulos de CENTRO TECNOL.DE REC.MINERALES Y CERAMICA (I)
Citación
Martinez, Juan Manuel; Hernández, Maria Florencia; Booth, Raul Fernando Nicolas; Lopez, Paula Virginia; Suarez, Gustavo; et al.; Partially stabilized Zirconia (3y-ZrO2) aluminum borate (Al18B4O33) needles composite materials by direct sintering; Int Inst Science Sintering (i I S S); Science Of Sintering; 53; 1; 2-2021; 9-18
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