The Study of Basal Dislocations in Sapphire.
ARMY MATERIALS AND MECHANICS RESEARCH CENTER WATERTOWN MASS
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An analysis of the Burgers vectors of dislocations in sapphire, revealed by X-ray transmission topography, confirmed the existence of the Burgers vectors parallel to the 2-1-10 directions. Experimental evidence for the magnitude of the Burgers vectors is given. Numerous dislocation reactions of the type 2-1-10 -12-10 -1-120 0 are verified. Author