Dimethylformamide: an effective dispersant for making ceramic–carbon nanotube composites

Inam, Fawad, Yan, Haixue, Reece, Michael and Peijs, Ton (2008) Dimethylformamide: an effective dispersant for making ceramic–carbon nanotube composites. Nanotechnology, 19 (19). p. 195710. ISSN 0957-4484

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Abstract

Carbon nanotube (CNT) and alumina dispersions were prepared separately in dimethylformamide (DMF) and ethanol by ultrasonication. The colloidal stability of the dispersions was monitored and a particle size analysis was performed to evaluate the size range of the agglomerates after different times. DMF was found to be a much more effective dispersant than ethanol for making stable, homogeneous CNT and composite dispersions. Alumina-CNT (4.65 vol%) nanocomposites were sintered in a spark plasma sintering (SPS) furnace. DMF dispersions produced homogeneously distributed and agglomerate-free CNT-alumina nanocomposites with higher electrical conductivity as compared to nanocomposites prepared using ethanol.

Item Type:	Article
Subjects:	F200 Materials Science F300 Physics H300 Mechanical Engineering
Department:	Faculties > Engineering and Environment > Mechanical and Construction Engineering
Depositing User:	Fawad Inam
Date Deposited:	24 May 2013 15:30
Last Modified:	13 Oct 2019 00:24
URI:	http://nrl.northumbria.ac.uk/id/eprint/12673

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