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Título : Electroconductive alumina-TiC-Ni nanocomposites obtained by spark plasma sintering
Autor : Rodríguez Suárez, Teresa, Bartolomé, J. F., Smirnov, A., Lopez-Esteban, S., Díaz, L. A., Torrecillas, Ramón, Moya, J. S.
Fecha de publicación : 2011
Editor: Elsevier
Resumen: In the present work, the processing and characterization of electroconductive Alumina-TiC-Ni nanocomposites obtained by Spark Plasma Sintering (SPS) are described. These nanocomposites are singular due to the excellent mechanical properties they present (particular regarding Vickers hardness, 25.6 ± 0.7 GPa), as well as their extremely good wear behaviour, studied under "ball-on-disk" dry sliding conditions. The wear rate obtained was 25 times (almost 1.5 orders of magnitude) smaller than the value obtained for a monolithic alumina sintered under the same conditions. Flexural strength had been improved up to 75% with respect to the monolithic alumina processed under the same conditions. As these nanocomposites can be machined by electroerosion (EDM), they can adopt any shape for devices requiring a good mechanical performance and low wear rates. © 2011 Elsevier Ltd and Techna Group S.r.l.
Descripción : El pdf del artículo es la versión post-print.
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Identificadores: doi: 10.1016/j.ceramint.2011.01.033
issn: 0272-8842
Citación : Ceramics International 37(5): 1631-1636 (2011)
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