NDLI: Characterization of Interlayer Sliding Deformation for Individual Multiwalled Carbon Nanotubes Using Electrostatically Actuated Nanotensile Testing Device

Content Provider	IEEE Xplore Digital Library
Author	Hyun-Jin Oh Omori, H. Sadakata, M. Tsubokura, I. Isono, Y.
Copyright Year	1992
Abstract	We have developed an in situ scanning electron microscopy (SEM) nanomaterial manipulation system, including a newly designed electrostatically actuated nanotensile testing device (EANAT), in order to investigate the mechanical characteristics of multiwalled carbon nanotubes (MWCNTs) synthesized by atmospheric pressure-chemical vapor deposition. The new EANAT can measure uniaxial tensile displacement of nanomaterials using a capacitive displacement sensor incorporated into a cantilever motion amplification system. The resolution of the measurement displacement was 0.28 nm at the minimum. The nanomaterial manipulation system allows for an individual MWCNT to be picked up from a substrate and to be attached to an EANAT. The stress-strain relationships for the individual MWCNTs were successfully obtained from the nanotensile tests, and Young's moduli were estimated to be in the range from 338 to 623 GPa. The deformation of individual MWCNTs under uniaxial loading was accompanied by repeated stick-slip and hard sticking events like telescopic motion. The shear strength at a stick-slip event during interlayer sliding of MWCNTs under tensile loading was directly derived from the shear interaction force in the tensile load-displacement curves and SEM observations. On the basis of the single-shot extraction model, the shear strength was estimated to be an average of 78 MPa greater than that for high-quality crystalline graphite, which might be caused by the hard sticking between layers.
Sponsorship	IEEE Electron Devices Society American Society of Mechanical Engineering (ASME)
Starting Page	944
Ending Page	954
Page Count	11
File Size	6317357
File Format	PDF
ISSN	10577157
Volume Number	23
Issue Number	4
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2014-01-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Actuators Displacement measurement Testing Scanning electron microscopy Capacitors Capacitance Strain capacitive displacement sensor. Multiwalled carbon nanotube interlayer sliding shear strength electrostatically actuated nanotensile testing capacitive displacement sensor
Content Type	Text
Resource Type	Article
Subject	Mechanical Engineering Electrical and Electronic Engineering

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