Effect of nanofiber proximity on the mechanical behavior of high volume fraction aligned carbon nanotube arrays
Name
Hulya_Revised Nanoindentation_Manuscript with SI.pdf
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1.69 MB
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Checksum (MD5)
8e9110c52b8bda66b0a4214e94317282
Author(s)
Cebeci, Hulya Geyik
Stein, Itai Y.
Wardle, Brian L.
Date Issued
January 2014
Journal
Applied Physics Letters
Publisher
American Institute of Physics
Citation
Cebeci, Hülya, Itai Y. Stein, and Brian L. Wardle. “Effect of Nanofiber Proximity on the Mechanical Behavior of High Volume Fraction Aligned Carbon Nanotube Arrays.” Appl. Phys. Lett. 104, no. 2 (January 13, 2014): 023117.
Version
Author's final manuscript
Abstract
The effect of nanofiber proximity on the mechanical behavior of nanofiber arrays with volume fractions (V f) from 1% to 20% was quantified via nanoindentation of an aligned carbon nanotube (A-CNT) array. The experimental results show that the indentation modulus for A-CNT arrays has a highly non-linear scaling with the CNT V f, leading to modulus enhancements of up to ∼600× at V f = 20%. Modeling illustrates that the origin of the highly non-linear trend with V f is due to the minimum inter-CNT spacing, which is shown to be more than an order of magnitude larger than the graphitic spacing.
MIT Department
Massachusetts Institute of Technology. Department of Aeronautics and Astronautics
Massachusetts Institute of Technology. Department of Mechanical Engineering
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Creative Commons Attribution-Noncommercial-Share Alike
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DOI of Published Version
https://doi.org/10.1063/1.4862273
