What are Some Unique Deformation Mechanisms at the Nanoscale?
At the nanoscale, deformation mechanisms can differ significantly from those in bulk materials. Some unique mechanisms include:
Dislocation Nucleation: Unlike bulk materials, where dislocations are pre-existing, nanomaterials often require the nucleation of dislocations under stress. Grain Boundary Sliding: In nanocrystalline materials, grain boundaries can slide past each other, leading to deformation. Surface Diffusion: At the nanoscale, atoms on the surface can migrate, contributing to deformation.
