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Aplicaciones del SiC biomórfico como reforzante estructural en hormigones refractarios


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Opened Access Aplicaciones del SiC biomórfico como reforzante estructural en hormigones refractarios

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Author: Sepúlveda Ferrer, Ranier Enrique
López Robledo, Manuel Jesús
Ramírez de Arellano López, Antonio
Martínez Fernández, Julián
Domínguez, C.
Department: Universidad de Sevilla. Departamento de Física de la Materia Condensada
Universidad de Sevilla. Departamento de Estructuras de Edificación e Ingeniería del Terreno
Date: 2005
Published in: Boletín de la Sociedad Española de Cerámica y Vidrio, 44(5), 357-362
Document type: Article
Abstract: Una posible aplicación del SiC biomórfico (bioSiC) son los reforzante estructural en hormigones refractarios. En este caso se han fabricado piezas de bioSiC con forma de cilindros alargados, 3-4 mm de diámetro y 30-35 mm de longitud, mediante infi...
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This work is devoted to the study of the time and temperature dependence of the static grain growth in YTZP 4 mol %, with an average grain size within the submicrometric range ( > 0.1 µm). Also, the mechanical response in the temperature interval between 1200 ºC and 1500 ºC is analysed. The grain growth is controlled by the yttria segregation at the grain boundaries, which plays a key role in the cationic diffusion processes. Microstructural characterization of both as-received and deformed samples allows to conclude that plastic deformation is due to grain boundary sliding (GBS), with stress exponents increasing with the flow stress, but in all cases they are lower than n = 2.
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DOI: 10.3989/cyv.2005.v44.i5.370

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