screw dislocations

What are Screw Dislocations?

Screw dislocations are a type of crystallographic defect characterized by a helical ramp resulting from shear stress. They are essential in understanding materials' mechanical properties, especially at the nanoscale. Unlike edge dislocations, where the dislocation line runs parallel to the Burgers vector, in screw dislocations, the dislocation line is perpendicular to the Burgers vector.

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