Thermal Resistance of the Interface Between Vertically Aligned Multiwalled Carbon Nanotube Arrays and Inconel and SiO2/Si Substrates

Autor: Youngsuk Son, Theodorian Borca-Tasciuc, Robert Vajtai, Pulickel M. Ajayan, Sunil K. Pal, Richard W. Siegel
Rok vydání: 2008
Předmět:
Zdroj: ASME 2008 6th International Conference on Nanochannels, Microchannels, and Minichannels.
Popis: The interface thermal resistance (ITR) of the interface between vertically aligned multiwalled carbon nanotube (MWCNT) arrays and the SiO2 /Si and Inconel substrates was investigated. Experimental results were compared with theoretical predictions for the ITR across nanoconstrictions. The model considers classical constriction effects and contributions due to diffuse mismatch thermal resistance. Experimental values of the ITR are much larger than the model predictions. The observed discrepancy may be due to the imperfect mechanical contact between the tubes and substrate or additional contributions to ITR due to the presence of a catalyst layer at the interface.Copyright © 2008 by ASME
Databáze: OpenAIRE