Abstract
Full Text
Strength and Breaking Mechanism of Multiwalled Carbon Nanotubes Under Tensile Load
Min-Feng Yu, Oleg Lourie, Mark J. Dyer, Katerina Moloni, Thomas F. Kelly, and Rodney S. Ruoff

Supplementary Material

Supplemental Table 1. A list of the MWCNTs tested in the tensile-loading experiment. Shown are the nanotube number, gauge length, internal and outer diameters, force applied at fracture, and the tensile strength calculated for the outermost cylinder.*
MWCNT number L0 (μm) ID (nm) OD (nm) F (nN) σs (GPa)
1 3.50 - 40 1450 34
2 6.50 - 19 400 20
3 3.03 - 19 370 18
4 2.33 - 24 940 37
5 6.87 - 20 1340 63
6 10.99 9.5 33 810 21
7 5.70 8 29 810 26
8 1.10 4 31 590 18
9 5.70 8 28 570 19
10 1.80 10 36 920 24
11 8.20 - 20 910 43
12 4.10 5 28 340 11
13 6.40 5 28 370 12
14 3.60 5 28 710 24
15 2.92 - 13 390 28
16 4.61 - 18.5 390 20
17 1.04 - 24 960 37
18 6.67 4 22 810 35
19 6.04 4 22 920 39

*The ID of some of the MWCNTs could not be determined.
Numbers 11, 14, and 15 are the only three nanotubes for which the sum of the fragment lengths did not greatly exceed the section length just before breaking.