Tensile Loading of Double-Walled and Triple-Walled Carbon Nanotubes and their Mechanical Properties
- Wei, Xianlong
- Chen, Qing
- Peng, Lian-Mao
- Cui, Rongli
- Li, Yan
DOIAbstract
The mechanical response of individual double-walled and triple-walled carbon nanotubes (CNTs) and CNT ropes consisting of only two double-walled CNTs under tensile load was measured using nanomanipulators in a scanning electron microscope. The breaking strain and strength and Young's modulus of individual CNTs were measured to be 1.5-4.9%, 13-46 GPa, and 0.73-1.33 TPa, respectively. The low breaking strain and strength are most likely caused by the defects presented in the measured CNTs synthesized by chemical vapor deposition. Carbon nanotube ropes exhibited one-step or stepwise breaks depending oil the relative breaking strains of the two CNTs.http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAut...
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