Evaluation of Young's modulus of carbon
nanotubes by micro-Raman spectroscopy
O. Lourie, H.D. Wagner
(Weizmann Institute of Science)
Micro-Raman
spectroscopy is used to monitor the cooling-induced compressive
deformation of carbon nanotubes embedded in an epoxy matrix. The Young's
modulus of single- and multi-wall nanotubes may then be derived from a
concentric cylinder model for thermal stresses, using the D*-band shift
for each tube type. The resulting values of the elastic moduli are in very
good agreement with predicted theoretical values, and with the only
published experimental data set [Treacy et al., Nature
381, 689 (1996)].
Order No.:
JA809-009 © 1998 MRS
Go to September 1998 Table of Contents
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