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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Yoonjin Won Yuan Gao de Villoria, R.G. Wardle, B.L. Kenny, T.W. Goodson, K.E. |
| Copyright Year | 2012 |
| Description | Author affiliation: Department of Aeronautics and Astronautics, Massachusetts Institute of Technology, Cambridge, 02139, USA (de Villoria, R.G.; Wardle, B.L.) || Department of Mechanical Engineering, 440 Escondido Mall, Stanford University, CA 94305, USA (Yoonjin Won; Yuan Gao; Kenny, T.W.; Goodson, K.E.) |
| Abstract | Carbon nanotubes (CNTs) have been attractive materials because of the unique combination of their small size and physical properties, such as high thermal conductivity and mechanical compliance. This paper extracts in-plane modulus of 100–220 µm-thick vertically aligned multi-walled carbon nanotube (VA-MWCNT) films. The films have low modulus in the range of 0.5–2 MPa, consistent with expectations due to the direction of CNT alignment. We study the effect of a top crust of entangled CNTs on the modulus by etching the surface of the VA-MWCNT films using O plasma. Scanning electron micrographs reveal that the surface etching removes the entanglements of the crust layer. The modulus values of the etched samples indicate that there is no significant effect of this crust on the modulus of thick films (>100 µm). This is in contrast to previous work that showed that the crust layer had a very strong effect in thinner films. |
| Starting Page | 1070 |
| Ending Page | 1076 |
| File Size | 1106784 |
| Page Count | 7 |
| File Format | |
| ISBN | 9781424495337 |
| ISSN | 10879870 |
| e-ISBN | 9781424495320 |
| e-ISBN | 9781424495313 |
| DOI | 10.1109/ITHERM.2012.6231543 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2012-05-30 |
| Publisher Place | USA |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Films Laser beams Silicon Etching Carbon nanotubes Morphology CNT thermal interface material carbon nanotubes modulus multi-walled carbon nanotubes |
| Content Type | Text |
| Resource Type | Article |
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