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Updated: Jan 12, 2026

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Phase imaging and analysis of the annihilation of a dislocation at a crystal surface
1MENG, CAMTEC, University of Victoria, Victoria V8W 2Y2, Canada.
Abstract:
A phase imaging method, Diffracted Beam Interferometry, has imaged a dislocation passing through a crystal specimen and annihilating on the bottom free surface. The strain associated with the dislocation and released at the free surface transforms the 1 dimensional dislocation to a three dimensional volume defect most likely a surface pit. A mechanism based on dislocation theory is proposed for the transformational process.
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