Effect of high SWNT content on the room temperature mechanical properties of fully dense 3YTZP/SWNT composites

descriptionPublicationkeyboard_double_arrow_right Article 01 Jun 2014 Spain English Publisher:Elsevier BVJournal:Journal of the European Ceramic Society, volume 34, pages 1,571-1,579 (issn: 0955-2219,

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Authors: Poyato Galán, Rosalía; Gallardo López, Ángela María; Gutiérrez Mora, Felipe; Morales Rodríguez, Ana; Muñoz Bernabé, Antonio; Domínguez Rodríguez, Arturo;

doi: 10.1016/j.jeurceramsoc.2013.12.024

handle: 10261/102004

Effect of high SWNT content on the room temperature mechanical properties of fully dense 3YTZP/SWNT composites

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Abstract

This paper is devoted to correlate the microstructure and room temperature mechanical properties of single-wall carbon nanotube (SWNT) reinforced 3. mol% yttria stabilized tetragonal zirconia with high SWNT content (2.5, 5 and 10. vol%). Fully dense composites were prepared by using a combination of aqueous colloidal powder processing and Spark Plasma Sintering. SWNTs were located at the ceramic grain boundaries and they were not damaged during the sintering process. The weak interfacial bonding between SWNTs and ceramic grains together with the detachment of SWNTs within thick bundles have been pointed out as responsible for the decrease of hardness and fracture toughness of the composites in comparison with the monolithic 3YTZP ceramic. Ministerio de Ciencia e Innovación (España) MAT2012-34217 Junta de Andalucía P12-FQM-1079

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Spain

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Keywords

Carbon nanotubes, Mechanical properties, Processing, Composites, Spark Plasma Sintering

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