| Authors: | Jakubinek, M. B.; Johnson, M. B.; White, M. A.; Jayasinghe, C.; Li, G.; Cho, W. D.; Schulz, M. J.; Shanov, V. |
| Title: | Thermal and electrical conductivity of array-spun multi-walled carbon nanotube yarns |
| Type: | Journal Article |
| Publisher: | Carbon |
| Year: | 2012 |
| Volume: | 50 |
| Issue: | 1 |
| Start Page: | 244 |
| End Page: | 248 |
| DOI: | 10.1016/j.carbon.2011.08.041 |
| Abstract: | The electrical resistivity of CNT yarns of diameters 10-34 mu m, spun from multi-walled carbon nanotube arrays, have been determined from 2 to 300 K in magnetic fields up to 9 T. The magnetoresistance is large and negative at low temperatures. The thermal conductivity also has been determined, by parallel thermal conductance, from 5 to 300 K. The room-temperature thermal conductivity of the 10 pm yarn is (60 20) Wm(-1)K(-1), the highest measured result for a CNT yarn to date. The thermal and electrical conductivities both decrease with increasing yarn diameter, which is attributed to structural differences that vary with the yarn diameter. (C) 2011 Elsevier Ltd. All rights reserved. |
| Keywords: | preferred orientation, transport, fibers, neat |
