Graphene nanoribbon ceramic composites

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abstract

By unzipping multi-walled carbon nanotubes (MWCNTs) it is possible to obtain graphene nanoribbons (GNRs) that could then be used as fillers in ceramic composites. Here we report the fabrication of silicon nitride (Si3N4) ceramics with different contents of GNRs by spark plasma sintering. The GNR fillers confer electrical conductivity to the Si3N4 composites, following a semiconducting-like behavior at relatively low volume filler concentrations (0.04). In addition, a toughening effect, produced by GNRs bridging the cracks was observed. GNRs appear to be an efficient alternative to graphene-based composites, useful in the fabrication of novel multifunctional ceramic composites. (C) 2015 Elsevier Ltd. All rights reserved.

keywords

CARBON NANOTUBES; SI3N4 CERAMICS; MICROSTRUCTURE; PARTICLES; TOUGHNESS; GROWTH

subject category

Chemistry; Materials Science

authors

Ramirez, C; Osendi, MI; Miranzo, P; Belmonte, M; Figueiredo, F; Castro-Beltran, A; Terrones, M

our authors

foto Filipe Miguel H Lebre R Figueiredo

Filipe Miguel H Lebre R Figueiredo

Principal Researcher

Groups

G3 - Electrochemical Materials, Interfaces and Coatings

Projects

Centre for Research in Ceramics and Composite Materials - CICECO (LA0011: 2013-2014) (PEst-C/CTM/LA0011/2013)

acknowledgements

Present work financed by CSIC (Spain) under project PIE201360E063 and MINECO (Spain) with project MAT2012-32944. M. Terrones thanks support from the U.S. Air Force Office of Scientific Research MURI Grant FA9550-12-1-0035. F. Figueiredo thanks support by the Portuguese Foundation for Science and Technology (FCT) through projects CICECO-FCOMP-01-0124-FEDER-037271 (Ref. FCT PEst-C/CTM/LA0011/2013) and Investigador FCT 2013 contract number IF/01174/ 2013.

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Publication Details

type
Journal Article
year
2015
journal
CARBON
volume
90
publisher
PERGAMON-ELSEVIER SCIENCE LTD
issn
Aug-23
digital object identifier
10.1016/j.carbon.2015.04.014
web of science article identifier
WOS:000356129200024

Journal Metrics (JCR 2019)

Journal Impact Factor
8.821
Journal Impact Factor (5 yrs)
7.984
category normalized journal percentile
86.965

Citations

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