Effect of nanofiber proximity on the mechanical behavior of high volume fraction aligned carbon nanotube arrays

Hülya Cebeci; Itai Y. Stein; Brian L. Wardle

doi:10.1063/1.4862273

Effect of nanofiber proximity on the mechanical behavior of high volume fraction aligned carbon nanotube arrays

Hülya Cebeci, Itai Y. Stein, Brian L. Wardle

Department of Aeronautical Engineering

Massachusetts Institute of Technology

Research output: Contribution to journal › Article › peer-review

23 Citations (Scopus)

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.

Original language	English
Article number	023117
Journal	Applied Physics Letters
Volume	104
Issue number	2
DOIs	https://doi.org/10.1063/1.4862273
Publication status	Published - 13 Jan 2014

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abstract = "The effect of nanofiber proximity on the mechanical behavior of nanofiber arrays with volume fractions (Vf) 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 Vf, leading to modulus enhancements of up to ∼600× at Vf = 20%. Modeling illustrates that the origin of the highly non-linear trend with Vf is due to the minimum inter-CNT spacing, which is shown to be more than an order of magnitude larger than the graphitic spacing.",

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Effect of nanofiber proximity on the mechanical behavior of high volume fraction aligned carbon nanotube arrays

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