1. Because there are no stacking faults, the screw dislocations may cross-slip. 2. Edge dislocations form so called tilt walls, while screw dislocations form twist walls. 3. Screw dislocations form a line along which the crystal lattice jumps one lattice point.4. This type of boundary incorporates two sets of screw dislocations . 5. There are two types of dislocations in crystals that can induce slip-edge dislocations and screw dislocations . 6. Both edge and screw dislocations move ( slip ) in directions parallel to their burgers vector. 7. As such, substitutional solute atoms do not interact with the shear stress fields characteristic of screw dislocations . 8. Partials form instead of screw dislocations . 9. Once a screw dislocation propagates through the bulk of a sample during the yield in the device manufacturing process. 10. Micropipes and screw dislocations in epitaxial layers are normally derived from the substrates on which the epitaxy is performed.
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