Special Issue Article

Nanoscale Research Letters

, Volume 5, Issue 3, pp 478-483

Open Access This content is freely available online to anyone, anywhere at any time.

Superelasticity of Carbon Nanocoils from Atomistic Quantum Simulations

  • Li Zhao LiuAffiliated withLaboratory of Materials Modification by Laser, Electron, and Ion Beams, and College of Advanced Science and Technology, Dalian University of Technology
  • , Hai Li GaoAffiliated withLaboratory of Materials Modification by Laser, Electron, and Ion Beams, and College of Advanced Science and Technology, Dalian University of Technology
  • , Ji Jun ZhaoAffiliated withLaboratory of Materials Modification by Laser, Electron, and Ion Beams, and College of Advanced Science and Technology, Dalian University of TechnologyJiangsu Key Laboratory for Chemistry of Low-Dimensional Materials, Huaiyin Normal University Email author 
  • , Jian Ping LuAffiliated withDepartment of Physics and Astronomy, University of North Carolina at Chapel Hill

Abstract

A structural model of carbon nanocoils (CNCs) on the basis of carbon nanotubes (CNTs) was proposed. The Young’s moduli and spring constants of CNCs were computed and compared with those of CNTs. Upon elongation and compression, CNCs exhibit superelastic properties that are manifested by the nearly invariant average bond lengths and the large maximum elastic strain limit. Analysis of bond angle distributions shows that the three-dimensional spiral structures of CNCs mainly account for their unique superelasticity.

Keywords

Nanocoil Nanotube Superelasticity Young’s modulus