Grain boundaries provide fast diffusion pathways for atoms and ions due to their disordered structure and high density of defects. Enhanced diffusion along grain boundaries can lead to accelerated ...

This research team succeeded in imaging and quantifying ionic migration/diffusion at individual grain boundaries within a solid electrolyte using secondary ion mass spectrometry (SIMS).

WHEN bicrystals are subjected to a constant shear stress parallel to the boundary plane, the grain boundary sliding velocity decreases with time 1–4. We wish to report some experiments which ...