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 language | English (US) |
---|---|
Title of host publication | Technical Proceedings of the 2008 NSTI Nanotechnology Conference and Trade Show, NSTI-Nanotech, Nanotechnology 2008 |
Pages | 198-201 |
Number of pages | 4 |
Volume | 1 |
State | Published - Oct 13 2008 |
Event | 2008 NSTI Nanotechnology Conference and Trade Show, NSTI Nanotech 2008 Joint Meeting, Nanotechnology 2008 - Quebec City, QC, United States Duration: Jun 1 2008 → Jun 5 2008 |
Other
Other | 2008 NSTI Nanotechnology Conference and Trade Show, NSTI Nanotech 2008 Joint Meeting, Nanotechnology 2008 |
---|---|
Country/Territory | United States |
City | Quebec City, QC |
Period | 6/1/08 → 6/5/08 |
All Science Journal Classification (ASJC) codes
- Mechanical Engineering