TITLE:
Novel Ultrasonic Dispersion of Carbon Nanotubes
AUTHORS:
G.T. Caneba, C. Dutta, V. Agrawal, M. Rao
KEYWORDS:
Carbon Nanotubes, Ultrasonic Dispersion, Acoustics Energy, Statistical Energy Analysis, Intermittency, Chaos
JOURNAL NAME:
Journal of Minerals and Materials Characterization and Engineering,
Vol.9 No.3,
March
20,
2010
ABSTRACT: A double ultrasonic source has been shown to dramatically increase dispersion efficiency of
carbon nanotubes. Thermal measurements of dispersing fluid only show temperature rises
commensurate with the power levels of the two ultrasonic sources; which is validated by
predictions of statistical energy analysis (SEA) based on wave superposition principles. In this
paper, nonlinear wave resonance concepts have been proposed to contain explanations for the
dramatic increase in dispersion performance, and more specifically, the effect of intermittency
chaos. Such a hypothesis was made because of the similarity between the pressure wave pattern
in the double sonication system and sliding charge density wave with an A.C. electric field,
which was cited to exhibit intermittency behavior.