Thermal conductivity of carbon nanotube networks: a review

Thermal conductivity of carbon nanotube networks: a review

Depending on their structure and order (individual, films, bundled, buckypapers, etc.), carbon nanotubes (CNTs) demonstrate different values of thermal conductivity, from the level of thermal insulation with the thermal conductivity of 0.1 W/mK to such high values as 6600 W/mK. This review article c...

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Bibliographic Details
Published in:Journal of materials science 2019-05, Vol.54 (10), p.7397-7427
Main Authors: Kumanek, Bogumiła, Janas, Dawid
Format: Article
Language:eng
Subjects:
Analysis
Bolometers
Carbon nanotubes
Characterization and Evaluation of Materials
Chemistry and Materials Science
Classical Mechanics
Crystallography and Scattering Methods
Heat conductivity
Heat transfer
Materials Science
Measurement methods
Nanotubes
Networks
Polymer Sciences
Raman spectroscopy
Review
Solid Mechanics
Spectroscopy
Thermal conductivity
Thermal insulation
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Summary:Depending on their structure and order (individual, films, bundled, buckypapers, etc.), carbon nanotubes (CNTs) demonstrate different values of thermal conductivity, from the level of thermal insulation with the thermal conductivity of 0.1 W/mK to such high values as 6600 W/mK. This review article concentrates on analyzing the articles on thermal conductivity of CNT networks. It describes various measurement methods, such as the 3-ω method, bolometric, steady-state method and their variations, hot-disk method, laser flash analysis, thermoreflectance method and Raman spectroscopy, and summarizes the results obtained using those techniques. The article provides the main factors affecting the value of thermal conductivity, such as CNT density, number of defects in their structure, CNT ordering within arrays, direction of measurement in relation to their length, temperature of measurement and type of CNTs. The practical methods of using CNT networks and the potential directions of future research in that scope were also described.
ISSN:0022-2461
1573-4803