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Electroconductive alumina-TiC-Ni nanocomposites obtained by spark plasma sintering

AuthorsRodríguez Suárez, Teresa ; Bartolomé Gómez, José Florindo ; Smirnov, Anton ; López-Esteban, Sonia; Díaz, Luis A. ; Torrecillas, Ramón ; Moya, J. S.
Issue Date2011
CitationCeramics International 37(5): 1631-1636 (2011)
AbstractIn 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.
DescriptionEl pdf del artículo es la versión post-print.
Publisher version (URL)http://dx.doi.org/10.1016/j.ceramint.2011.01.033
Identifiersdoi: 10.1016/j.ceramint.2011.01.033
issn: 0272-8842
Appears in Collections:(CINN) Artículos
(ICMM) Artículos
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