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Updated: Apr 17, 2026
Atomic Force Microscopy Cantilever-Based Nanoindentation: Mechanical Property Measurements at the Nanoscale in Air and Fluid
Published on: December 2, 2022
Mechanical properties and defect sensitivity of diamond nanothreads
Ruth E Roman1, Kenny Kwan, Steven W Cranford
1Laboratory of Nanotechnology in Civil Engineering, Department of Civil and Environmental Engineering, Northeastern University , Boston, Massachusetts 02115, United States.
Abstract:
One of the newest carbon allotropes synthesized are diamond nanothreads. Using molecular dynamics, we determine the stiffness (850 GPa), strength (26.4 nN), extension (14.9%), and bending rigidity (5.35 × 10(-28) N·m(2)). The 1D nature of the nanothread results in a tenacity of 4.1 × 10(7) N·m/kg, exceeding nanotubes and graphene. As the thread consists of repeating Stone-Wales defects, through steered molecular dynamics (SMD), we explore the effect of defect density on the strength, stiffness, and extension of the system.
