Nature

Cross-Split of Dislocations: An Athermal and Rapid Plasticity Mechanism

The ongoing efforts to improve strength and ductility through miniaturizing specimens 1 or by forming sub-micrometer scale microstructure 2,3,4 bring with it the need to deeply understand mechanical ...
Nature

First-principles computation of dislocation structures and stress-driven phase transformations in layered oxides for Na-ion batteries

The γ-surfaces of O3-type compounds show a characteristic three-fold symmetry associated with the O3↔P3 transformation. In contrast, the monoclinic O’3 analogs display a single low-energy transition ...
Princeton University

Dislocation Core

The diagram shows the location of atoms close to an edge dislocation line that runs back into the screen. The green circle outlines a group of atoms close to the dislocation line that have larger ...
Princeton University

Jog, Kink

Jogs and kinks are atomic scale changes in direction of a dislocation line. Jogs are out of the slip plane and kinks lie in the dislocations slip plane. For the edge dislocation shown, the jogs are of ...