Edward M. Nadgorny - Dislocation Dynamics Study in Materials

Moving Screw Dislocations in MgO Single Crystals

The crystal was deformed in-situ inside a high voltage electron microscope (at an acceleration voltage of 1000 kV). Five successive frames of video recording is shown for two screw dislocations moving in opposite directions ( Ulrich Messerschmidt and Fritz Appel ).

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