Height independent compressive modulus of vertically aligned carbon nanotube arrays

Nano Letters
Tao TongArun Majumdar

Abstract

The compressive modulus of dense vertically aligned multiwalled carbon nanotube (CNT) arrays synthesized by chemical vapor deposition was investigated using an optically probed precision-loading platform. For CNT arrays with heights ranging from 15 to 500 microm, the moduli were measured to be about 0.25 MPa and were found to be independent of array height. A continuum mechanics model based on multimode buckling guided by the wavy features of CNT arrays is derived and explains well the measured compressive properties. The measured compressive modulus of the CNT arrays also satisfies the "Dahlquist tack criterion" for pressure sensitive adhesives, which was previously observed for these vertically aligned CNT arrays (Zhao, Y., et al. J. Vac. Sci. Technol., B 2006, 24, 331-335).

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Citations

Apr 21, 2011·Langmuir : the ACS Journal of Surfaces and Colloids·Sameh TawfickA John Hart
Dec 7, 2013·Proceedings of the National Academy of Sciences of the United States of America·Yoonjin WonKenneth E Goodson
Apr 22, 2010·Physical Chemistry Chemical Physics : PCCP·Sameh TawfickJoerg Lahann
May 1, 2012·Nanoscale·Parisa Pour Shahid Saeed AbadiSamuel Graham
Jun 1, 2016·Nanoscale·Seyyed Shayan MeysamiNicole Grobert
Oct 14, 2010·Nano Letters·Liehui GeAli Dhinojwala
Mar 4, 2011·ACS Applied Materials & Interfaces·Matthew R MaschmannJeffery Baur

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