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Spark plasma sintering of TixTa1-xC0.5N0.5-based cermets: Effects of processing conditions on chemistry, microstructure and mechanical properties

Opened Access Spark plasma sintering of TixTa1-xC0.5N0.5-based cermets: Effects of processing conditions on chemistry, microstructure and mechanical properties

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Autor: Córdoba Gallego, José Manuel
Chicardi Augusto, Ernesto
Poyato Galán, Rosalía
Gotor Martínez, Francisco José
Medri, Valentina
Guicciardi, Stefano
Melandri, Cesare
Fecha: 2013
Publicado en: Chemical Engineering Journal, 230, 558-566.
Tipo de documento: Artículo
Resumen: Nanometric powdered TixTa1-xC0.5N0.5-based cermets were fabricated using a mechanically induced self-sustaining reaction and consolidated by spark plasma sintering. Highly dense cermets were obtained, and their chemistry, microstructure and mechanical properties were characterised by X-ray diffraction, scanning electron microscopy, image analysis, microindentation and nanoindentation. The microhardness was found to depend directly on the contiguity and size of the ceramic hard particles. The samples synthesised at the lowest temperature (1150°C) exhibited more homogeneous microstructures and smaller ceramic particles and the best combination of microhardness and fracture toughness.
Cita: Córdoba Gallego, J.M., Chicardi Augusto, E., Poyato Galán, R., Gotor Martínez, F.J., Medri, V., Guicciardi, S. y Melandri, C. (2013). Spark plasma sintering of TixTa1-xC0.5N0.5-based cermets: Effects of processing conditions on chemistry, microstructure and mechanical properties. Chemical Engineering Journal, 230, 558-566.
Tamaño: 1.506Mb
Formato: PDF

URI: https://hdl.handle.net/11441/70329

DOI: 10.1016/j.cej.2013.06.104

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