Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
4994301 | International Journal of Heat and Mass Transfer | 2017 | 5 Pages |
Abstract
In recent years many reports have indicated that Fourier's heat conduction law is violated at size scales comparable to the mean free path of the heat transfer carriers or time scales of femtoseconds. Another open question is whether Fourier's heat conduction law still holds at extremely high heat fluxes. Here, we present an experimental study of temperature dependent thermal conductivities and spatially resolved temperature profiles in electrically heated single-walled carbon nanotubes (SWCNTs) using Raman spectroscopy. The experimental results yield evidence that thermal transport in SWCNTs obeys Fourier's empirical law at high heat fluxes (q = 1.4 Ã 1011 W/m2) above 300 K in vacuum.
Related Topics
Physical Sciences and Engineering
Chemical Engineering
Fluid Flow and Transfer Processes
Authors
Jin-Hui Liu, Huan-Huan Xie, Yu-Dong Hu, Xing Zhang, Ying-Ying Zhang,