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Experimental study on the fracture mechanism of carbon nanotubes

  • School of Mechatronics Engineering, Harbin Institute of Technology

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Carbon nanotubes (CNT) has a property of rebound elasticity, which is induced barely no fracture even bending to a greet extent due to its perfect structural integrity. Resent studies have been carried out on the plastic formation and fracture process of CNT by calculation and dynamics simulation. In this paper, the radial fracture of CNT was found feasible even though CNT has high tenacity, hard to allocation and detection for its nano-scale size. Both ramped load and constant load scratch tests were conducted on CNTs using a Nano Indetenter to investigate the pattern alteration and the critical behavior of radial fracture. Fracture caused by nano-scratching was observed after scratching. The scratch resistance of CNT and the evolution of friction coefficient during scratching were analyzed, and the critical load of fracture was obtained also, which led to a new understanding of the origin of the fracture mechanism of CNTs.

Original languageEnglish
Title of host publicationProceedings of the International Conference on Integration and Commercialization of Micro and Nanosystems 2007
Pages719-725
Number of pages7
DOIs
StatePublished - 2007
Externally publishedYes
EventInternational Conference on Integration and Commercialization of Micro and Nanosystems 2007 - Sanya, Hainan, China
Duration: 10 Jan 200713 Jan 2007

Publication series

NameProceedings of the International Conference on Integration and Commercialization of Micro and Nanosystems 2007
VolumeA

Conference

ConferenceInternational Conference on Integration and Commercialization of Micro and Nanosystems 2007
Country/TerritoryChina
CitySanya, Hainan
Period10/01/0713/01/07

Keywords

  • Carbon nanotubes
  • Critical load
  • Fracture mechanism
  • Nanoscratch

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