Ceramic – carbon nanotube nanocomposites

Inam, Fawad (2009) Ceramic – carbon nanotube nanocomposites. In: Young Persons' Lecture Competition (Workshop) - London Local Heat (YPLC 2009), 14 February 2009, London Materials Society, IoM3, London, UK.

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The increasing availability of nanopowders and nanotubes combined with modern processing techniques is enabling the development of new multi-functional materials. This will be illustrated by ceramic - Carbon Nanotube (CNT) nanocomposites. The addition of relatively small amounts (<1 vol%) of CNTs can convert an insulating ceramic into a good electrical conductor. Alumina - CNT nanocomposites, having electrical conductivities upto 550 S/m were sintered using Spark Plasma Sintering (SPS). These materials provide a new envelope of mechanical properties. They offer the advantages of ceramics combined with good electrical and thermal conductivities. There are two critical steps in their processing: dispersion of the CNTs; and densification by sintering. To minimise any degradation of the CNT, the nanocomposites are sintered by rapid (300 ºC/min), pulsed electrical heating in a vacuum environment. Using this approach it is possible to densify nanocomposites at processing temperatures of >1800 ºC without significant degradation of the CNTs. - See more at: http://www.iom3.org/news/young-persons-lecture-competition-abstracts-london-local-heat#sthash.lsgXWw0G.dpuf

Item Type: Conference or Workshop Item (Lecture)
Subjects: F200 Materials Science
H300 Mechanical Engineering
J300 Ceramics and Glasses
Department: Faculties > Engineering and Environment > Mechanical and Construction Engineering
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Depositing User: Fawad Inam
Date Deposited: 19 Jun 2013 10:27
Last Modified: 13 Oct 2019 00:25
URI: http://nrl.northumbria.ac.uk/id/eprint/13025

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