Effect of nanofiber proximity on the mechanical behavior of high volume fraction aligned carbon nanotube arrays
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.
Document Details
- Document Type
- Pub Defense Publication
- Publication Date
- Jan 13, 2014
- Source ID
- 10.1063/1.4862273
Entities
People
- Brian Wardle
- Hülya Cebeci
- Itai Y. Stein
Organizations
- Army Research Office
- Istanbul Technical University
- Massachusetts Institute of Technology