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Artículo

High temperature mechanical behavior of low stiffness Al2TiO5 and Al2TiO5–3Al2O3.2SiO2–ZrTiO4 composite materials

Violini, María AgustinaIcon ; Hernández, Maria FlorenciaIcon ; Gass, Sebastian EmilianoIcon ; Tomba Martinez, Analia GladysIcon ; Rendtorff Birrer, Nicolás MaximilianoIcon
Fecha de publicación: 09/2021
Editorial: Wiley Blackwell Publishing, Inc
Revista: International Journal Of Applied Ceramic Technology
ISSN: 1546-542X
Idioma: Inglés
Tipo de recurso: Artículo publicado
Clasificación temática:
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Resumen

The mechanical behavior of low (and negative) thermal expansion and low stiffness Al2TiO5 materials and Al2TiO5–3Al2O3.2SiO2–ZrTiO4 composite materials was studied by diametral compression test at room temperature 400 and 800°C. The effect of both temperature and composition was analyzed. Stress–strain curves were obtained and, from them, apparent elastic modulus (Eapp) and mechanical strength (σF) were determined. Fracture mechanisms and fracture patterns were also analyzed. All materials showed a brittle behavior up to 800°C. The thermal variation of σF, that was even higher as testing temperature increased, was interpreted based on the microcracks behavior. A double linear correlation of Eapp was found with temperature (T) and zircon content ([Z]), with a fitting coefficient >.9. The particular low stiffness and the mechanical and thermal behavior of the studied materials suggest that they would be able to withstand thermal stresses.
Palabras clave: ALUMINUM TITANATE , MICROCRACKING , THERMOMECHANICAL BEHAVIOR , ZIRCON
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info:eu-repo/semantics/restrictedAccess 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/11336/181044
URL: https://onlinelibrary.wiley.com/doi/10.1111/ijac.13919
DOI: http://dx.doi.org/10.1111/ijac.13919
Colecciones
Articulos(CETMIC)
Articulos de CENTRO TECNOL.DE REC.MINERALES Y CERAMICA (I)
Citación
Violini, María Agustina; Hernández, Maria Florencia; Gass, Sebastian Emiliano; Tomba Martinez, Analia Gladys; Rendtorff Birrer, Nicolás Maximiliano; High temperature mechanical behavior of low stiffness Al2TiO5 and Al2TiO5–3Al2O3.2SiO2–ZrTiO4 composite materials; Wiley Blackwell Publishing, Inc; International Journal Of Applied Ceramic Technology; 19; 1; 9-2021; 514-522
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