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Is it possible to have dislocation with strength larger than the dislocation of unit strength?

Is it possible to have dislocation with strength larger than the dislocation of unit strength? Correct Answer False

A dislocation with a Burgers vector equal to one lattice spacing is said to be a dislocation of unit strength. Because of energy considerations, dislocations with strengths larger than unity are generally unstable and dissociate into two or more dislocations of lower strength.

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