Synthesis and Densification of CNTs/Fe/Al2O3 Nanocomposite Powders by Chemical Vapor Deposition
| Periodical | Key Engineering Materials (Volumes 317 - 318) |
|---|---|
| Main Theme | The Science of Engineering Ceramics III |
| Edited by | T. Ohji, T. Sekino and K. Niihara |
| Pages | 665-668 |
| DOI | 10.4028/www.scientific.net/KEM.317-318.665 |
| Citation | Seung Hwa Yoo et al., 2006, Key Engineering Materials, 317-318, 665 |
| Online since | August, 2006 |
| Authors | Seung Hwa Yoo, H.J. Wang, Sung Tag Oh, Sung Goon Kang, Yong Ho Choa |
| Keywords | Carbon Nanotube (CNT), Nanocomposite, Spark Plasma Sintering (SPS), Thermal CVD |
| Price | US$ 28,- |
CNTs/Fe/Al2O3 nanocomposites were prepared by thermal CVD and SPS methods. The dispersion of CNTs in the Fe/Al2O3 matrix were controlled by an attrition milling process. FESEM analysis revealed that the CNTs of 5 vol.% were homogeneously dispersed in the Fe/Al2O3. The effects of CNTs dispersion on the mechanical and electrical properties of the specimens were investigated. Fracture strength and electrical conductivity of 5 vol.% CNTs/Fe/Al2O3 specimen were measured at 641 MPa and 2.93 10-11 mS/m, whereas that of a 20 vol.% CNTs/Fe/Al2O3 specimen were 208 MPa and 8.46 10-7 mS/m, respectively. In comparison with an Al2O3 monolith, the specimen with 5 vol.% CNTs showed enhanced fracture strength and increased electrical conductivity.