Non-linear Elastic Properties Of Single-walled Carbon Nanotubes
S.K. Verma1*, Giridhar Mishra1, D.K. Pandey2, R.R. Yadav1
1Physics Department, University of Allahabad, Allahabad 211002, India
2Department of Physics, P.P.N. (P.G.) College, Kanpur 208001, India
Adv. Mater. Lett., 2012, 3 (1), pp 34-37
DOI: 10.5185/amlett.2011.4251
Publication Date (Web): Apr 10, 2012
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E-mail: skverma10july86@rediffmail.com
In this paper we have calculated the second and third order elastic constants of SWCNTs at room temperature using the interaction potential model. The approach with some modification has been established for the SWNTs nanomaterials. Further the ultrasonic properties have been determined with help of the non-linear elastic constants and other related parameters for characterization. It is observed that tube length dependent thermal conductivity is prominent reason behind the ultrasonic attenuation.
SWCNT, ultrasonic attenuation, second and third order elastic constants, debye average velocity
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