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Open Access item Electroconductive alumina-TiC-Ni nanocomposites obtained by spark plasma sintering

Authors:Rodríguez Suárez, Teresa
Bartolomé, J. F.
Smirnov, A.
López-Esteban, Sonia
Díaz, L. A.
Torrecillas, Ramón
Moya, J. S.
Issue Date:2011
Publisher:Elsevier
Citation:Ceramics International 37(5): 1631-1636 (2011)
Abstract: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.
Description:El pdf del artículo es la versión post-print.
Publisher version (URL):http://dx.doi.org/10.1016/j.ceramint.2011.01.033
URI:http://hdl.handle.net/10261/50394
Identifiers:doi: 10.1016/j.ceramint.2011.01.033
issn: 0272-8842
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