title: Nanohinge-induced plasticity of helical carbon nanotubes.
abstract: Helical carbon nanotubes with intentionally incorporated non-hexagonal defects have unexpectedly high toughness and plasticity, in addition to the well-recognized extreme elasticity. The obtained toughness approaches 5000 J g(-1) with decreasing spring radius. The high toughness originates from the plastic nanohinge formation as a result of distributed partial fractures. A strong spring size effect, contradictory to the continuum solution, is precisely described by an atomistic bond-breaking model.
authors: NTNU Nanomechanical Lab, Norwegian University of Science and Technology (NTNU), Richard Birkelands vei 1a, N-7491 Trondheim, Norway.
authors: Jianyang
authors: J
authors: Wu
authors: Shijo
authors: S
authors: Nagao
authors: Jianying
authors: J
authors: He
authors: Zhiliang
authors: Z
authors: Zhang
keywords: Helical carbon nanotube; gravimetric toughness; partial fracture; plastic nanohinge; plasticity; size effect