Giant Thermal Transport Phase Lagging in CNT Aggregates
| Autor: | Kang Liu, Xuetao Qi, Weimin Kan, Xuejiao Hu, Shuang Cui, Chen Cheng |
|---|---|
| Rok vydání: | 2013 |
| Předmět: |
Materials science
Nanotechnology Carbon nanotube Atmospheric temperature range Condensed Matter Physics Thermal conduction Atomic and Molecular Physics and Optics law.invention Mechanics of Materials law Chemical physics Phase (matter) Thermoelectric effect General Materials Science Time domain Microscale chemistry Order of magnitude |
| Zdroj: | Nanoscale and Microscale Thermophysical Engineering. 17:236-244 |
| ISSN: | 1556-7273 1556-7265 |
| DOI: | 10.1080/15567265.2013.787569 |
| Popis: | We report on experimental measurements of transient heat transfer characteristics of carbon nanotube aggregates for the temperature range from 120 to 370 K. A very large thermal transport relaxation time (τ) was observed: about 100 s at room temperature and up to 260 s at lower temperatures, one order of magnitude larger than record large values. These enormous τ values may imply a significant thermal transport phase lagging across carbon nanotube contacts. This finding may provide a new way to improve thermoelectric efficiency by minimizing heat leakage in the time domain. Supplementary materials are available online for this article. Go to the publisher's online edition of Nanoscale and Microscale Thermophysical Engineering to view the supplementary file. |
| Databáze: | OpenAIRE |
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