Article
Spark plasma sintering of TixTa1-xC0.5N0.5-based cermets: Effects of processing conditions on chemistry, microstructure and mechanical properties
Author/s | Córdoba Gallego, José Manuel
Chicardi Augusto, Ernesto Poyato Galán, Rosalía Gotor Martínez, Francisco José Medri, Valentina Guicciardi, Stefano Melandri, Cesare |
Department | Universidad de Sevilla. Departamento de Ingeniería y Ciencia de los Materiales y del Transporte |
Publication Date | 2013 |
Deposit Date | 2018-02-15 |
Published in |
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Abstract | 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, ... 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. |
Funding agencies | Gobierno de España |
Project ID. | MAT2011-22981 |
Citation | 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. |
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