| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1503180 | Scripta Materialia | 2006 | 6 Pages |
Abstract
Thermoelectric properties of single-wall carbon nanotube (SWNT)/ceramic nanocomposites produced by spark-plasma-sintering have been investigated in this study. The thermoelectric power of the composites increases with increasing temperature, showing a p-type value of 50.4 μV/K at 644 K that is comparable to that of pure SWNT. The SWNT/3Y-TZP composite has a figure of merit (ZT) of ∼0.02 at 850 K, indicating potential for use as a thermoelectric material. It would be very promising if CNT/ceramic composites with ZT > 1 could be attained by improving the electrical conductivity of the composites while maintaining or enhancing high thermopower through selecting the ratio of pure metallic to semiconducting CNTs.
Related Topics
Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
Guo-Dong Zhan, Joshua D. Kuntz, Amiya K. Mukherjee, Peixin Zhu, Kunihito Koumoto,