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Temperature Modeling for Carbon Nanofiber Breakdown

[+] Author Affiliations
Drazen Fabris, Hirohiko Kitsuki, Toshishige Yamada, Xuhui Sun, Jorge Gonzalez Cruz, Cary Y. Yang

Santa Clara University, Santa Clara, CA

Paper No. HT2008-56244, pp. 357-363; 7 pages
doi:10.1115/HT2008-56244
From:
  • ASME 2008 Heat Transfer Summer Conference collocated with the Fluids Engineering, Energy Sustainability, and 3rd Energy Nanotechnology Conferences
  • Heat Transfer: Volume 1
  • Jacksonville, Florida, USA, August 10–14, 2008
  • Conference Sponsors: Heat Transfer Division
  • ISBN: 978-0-7918-4847-0 | eISBN: 0-7918-3832-3
  • Copyright © 2008 by ASME

abstract

Carbon nanofibers (CNF) are proposed for electrical interconnect applications because of their relatively large current capacity and ability to form well-aligned one-dimensional structures. It is experimentally determined that nanofibers that are suspended between two electrodes breakdown at or near the nanofiber center. Based on published property values a simple model is used to calculate the temperature and quantify the effect of heat generation at the CNF/electrode interface on the nanofiber temperature. The model has the capability to separately account for the substrate temperature and the temperature at the CNF/electrode junction. It is determined that the CNF reaches a temperature at which carbon oxidation is likely to occur.

Copyright © 2008 by ASME

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