The effect of mesoscopic shape on thermal properties of multi-walled carbon nanotube mats
- Authors
- Heo, Young Jin; Yun, Chang Hun; Kim, Woo Nyon; Lee, Heon Sang
- Issue Date
- 9월-2011
- Publisher
- ELSEVIER SCIENCE BV
- Keywords
- Multi-walled carbon nanotubes; Thermal properties; Mesoscopic shape; Static bending persistence length; Static bend point; Thermal expansivity
- Citation
- CURRENT APPLIED PHYSICS, v.11, no.5, pp.1144 - 1148
- Indexed
- SCIE
SCOPUS
KCI
- Journal Title
- CURRENT APPLIED PHYSICS
- Volume
- 11
- Number
- 5
- Start Page
- 1144
- End Page
- 1148
- URI
- https://scholar.korea.ac.kr/handle/2021.sw.korea/111715
- DOI
- 10.1016/j.cap.2011.02.007
- ISSN
- 1567-1739
- Abstract
- We highlight the effect that mesoscopic shape of individual multi-walled carbon nanotubes (MWCNTs) has on their collective thermal properties when they are lumped together into MWCNT mats. The thermal properties depend both on the mesoscopic shape of the MWCNTs and on the structure of the mat. The mesoscopic shape is represented by static bending persistence length (l(sp)) and the mat structure is represented by network length (l(e)). It is demonstrated that various thermal properties depend on l(sp). The variable thermal properties are linear thermal expansivity, thermal diffusivity, specific heat capacity, and thermal conductivity. In the case of n* > 1, the MWCNT mats contract with increasing temperature. On the contrary, in the case of n* < 1, the mats expand with increasing temperature. The apparent thermal conductivity increases with increasing lsp. (C) 2011 Elsevier B.V. All rights reserved.
- Files in This Item
- There are no files associated with this item.
- Appears in
Collections - College of Engineering > Department of Chemical and Biological Engineering > 1. Journal Articles
Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.