journal article·2016-11-01Open access

On the linear dependence of a carbon nanofiber thermal conductivity on wall thickness

Alexandros Askounis, Yutaka Yamada, Tatsuya Ikuta, Koji Takahashi, Yasuyuki Takata, Khellil Sefiane

AIP Advances· Volume 6· Issue 11

Abstract

Thermal transport in carbon nanofibers (CNFs) was thoroughly investigated. In particular, individual CNFs were suspended on T-type heat nanosensors and their thermal conductivity was measured over a range of temperatures. Unexpectedly, thermal conductivity was found to be dependent on CNF wall thickness and ranging between ca. 28 and 43 W/(m⋅K). Further investigation of the CNF walls with high resolution electron microscopy allowed us to propose a tentative description of how wall structure affects phonon heat transport inside CNFs. The lower thermal conductivities, compared to other CNTs, was attributed to unique CNF wall structure. Additionally, wall thickness is related to the conducting lattice length of each constituent graphene cone and comparable to the Umklapp length. Hence, as the wall thickness and thus lattice length increases there is a higher probability for phonon scattering to the next layer.
Source: crossref · Quality: baseline

Research context

OpenAlex topics: Thermal properties of materials · Carbon Nanotubes in Composites · Graphene research and applications

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Kyushu University 1 International Institute for Carbon-Neutral Energy Research (WPI-I2CNER), , Fukuoka 819-0395, Japan

Kyushu University 2 Department of Mechanical Engineering, , 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan

Okayama University 3 Graduate School of Natural Science and Technology, , Okayama 700-8530, Japan

Kyushu University 4 Department of Aeronautics and Astronautics, Graduate School of Engineering, , Fukuoka 819-0395, Japan

Kyushu University 5 Japan Science and Technology Agency (JST), CREST, , Fukuoka 819-0395, Japan

The University of Edinburgh 6 Institute for Materials and Processes, School of Engineering, , King’s Buildings, Robert Stevenson Road, Edinburgh EH9 3BF, United Kingdom

Tianjin University of Commerce 7 Tianjin Key Lab of Refrigeration Technology, , Tianjin City 300134, People’s Republic of China

Funding

Japan Society for the Promotion of Science · Core Research for Evolutional Science and Technology

References (30)

Show source-provided references
1. Nature · 1991 · 354 · 5610.1038/354056a0 ↗
2. Phys. Rev. Lett. · 2000 · 84 · 461310.1103/PhysRevLett.84.4613 ↗
3. Physical Review B · 2008 · 77 · 07542410.1103/PhysRevB.77.075424 ↗
4. Microscale Thermophys. Eng. · 2003 · 7 · 4110.1080/10893950390150467 ↗
5. Applied Physics Express · 2009 · 2 · 09500310.1143/APEX.2.095003 ↗
6. Appl. Phys. Lett. · 2014 · 104 · 11311210.1063/1.4869470 ↗
7. Nanotechnology · 2009 · 20 · 14570210.1088/0957-4484/20/14/145702 ↗
8. Phys. Rev. Lett. · 2005 · 95 · 06550210.1103/PhysRevLett.95.065502 ↗
9. Phys. Rev. Lett. · 2001 · 87 · 21550210.1103/PhysRevLett.87.215502 ↗
10. J. Appl. Phys. · 2016 · 120 · 12430210.1063/1.4962942 ↗
11. Nano Research · 2010 · 3 · 14710.1007/s12274-010-1019-z ↗
12. J. Heat Transfer · 2005 · 128 · 23410.1115/1.2150833 ↗
13. Physica B: Condensed Matter · 2009 · 404 · 243110.1016/j.physb.2009.05.001 ↗
14. Physical Review B · 1985 · 32 · 198110.1103/PhysRevB.32.1981 ↗
15. Physical Review B · 1985 · 32 · 674210.1103/PhysRevB.32.6742 ↗
16. J. Phys.: Condens. Matter · 2010 · 22 · 06540310.1088/0953-8984/22/6/065403 ↗
17. J. Appl. Phys. · 2013 · 114 · 16352810.1063/1.4827378 ↗
18. Appl. Phys. Lett. · 2005 · 86 · 17191210.1063/1.1921350 ↗
19. J. Heat Transfer · 2003 · 125 · 88110.1115/1.1597619 ↗
20. Rev. Sci. Instrum. · 2012 · 83 · 05490410.1063/1.4717733 ↗
21. Adv. Funct. Mater · 2009 · 19 · 391810.1002/adfm.200900932 ↗
22. Rev. Mod. Phys. · 2013 · 85 · 129510.1103/RevModPhys.85.1295 ↗
23. Nat Mater · 2010 · 9 · 55510.1038/nmat2753 ↗
24. Nano Lett. · 2005 · 5 · 184210.1021/nl051044e ↗
25. Phys. Rev. · 1962 · 127 · 69410.1103/PhysRev.127.694 ↗
26. Carbon · 1994 · 32 · 73510.1016/0008-6223(94)90096-5 ↗
27. Appl. Phys. Lett. · 2004 · 84 · 397210.1063/1.1748849 ↗
28. Carbon · 2011 · 49 · 265310.1016/j.carbon.2011.02.051 ↗
29. Nano Lett. · 2005 · 5 · 122110.1021/nl050714d ↗
30. International Journal of Thermal Sciences · 2016 · 101 · 12610.1016/j.ijthermalsci.2015.10.037 ↗