Mechanics of a Carbon Nanocoil
Nano Letters2003Vol. 3(9), pp. 1299–1304
Citations Over TimeTop 10% of 2003 papers
Xinqi Chen, Sulin Zhang, Dmitriy A. Dikin, Weiqiang Ding, Rodney S. Ruoff, Lujun Pan, Yoshikazu Nakayama
Abstract
An individual carbon nanocoil was clamped between two AFM cantilevers and loaded in tension to a maximum relative elongation of ∼42%. The deformation of the nanocoil agrees well with an analytical model of the spring constant that accounts for the geometric nonlinearity. The nanocoil behaves like an elastic spring with a spring constant K of 0.12 N/m in the low strain region. No plastic deformation was detected. High-resolution microscopy images and the electron energy loss spectrum (EELS) indicate that the nanocoils are amorphous with a sp2/sp3 bonded-carbon ratio of ∼4:1.
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