High strength metal-carbon nanotube composites

A. Goyal, D. A. Wiegand, F. J. Owens, Z. Iqbal

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Uniform dispersion of pre-synthesized nanotubes in metal matrices is difficult to achieve, and there is substantial damage to the nanotubes during subsequent composite fabrication. The demonstration of an in-situ process involving chemical vapor deposition of single-wall and multi-wall carbon nanotubes into iron matrices without the concomitant formation of iron carbides is reported here. It was found that the yield strength of carbide-free iron-carbon nanotube composites increased up to 45% with about 1 wt % of infiltrated single wall carbon nanotubes (SWNTs), and 36% with -1 wt % multiwall carbon nanotubes (MWNTs), relative to that of similarly treated pure iron matrices of the same piece density. Vickers hardness coefficients were also substantially enhanced -74% and 96%, respectively, for composites with SWNTs and MWNTs relative to the metal matrices without nanotubes.

Original languageEnglish (US)
Title of host publicationTechnical Proceedings of the 2008 NSTI Nanotechnology Conference and Trade Show, NSTI-Nanotech, Nanotechnology 2008
Pages198-201
Number of pages4
Volume1
StatePublished - Oct 13 2008
Event2008 NSTI Nanotechnology Conference and Trade Show, NSTI Nanotech 2008 Joint Meeting, Nanotechnology 2008 - Quebec City, QC, United States
Duration: Jun 1 2008Jun 5 2008

Other

Other2008 NSTI Nanotechnology Conference and Trade Show, NSTI Nanotech 2008 Joint Meeting, Nanotechnology 2008
Country/TerritoryUnited States
CityQuebec City, QC
Period6/1/086/5/08

All Science Journal Classification (ASJC) codes

  • Mechanical Engineering

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