Which of the following statements concerning dislocations is FALSE? The energy r

Question

Which of the following statements concerning dislocations is FALSE? The energy required to move a dislocation increases as the magnitude of the Burger's vector associated with a given slip direction increases in a crystal. While dislocations can exist in ionic and covalent ceramic materials, their motion in these materials is extremely difficult compared to metals. Dislocations that are in close proximity tend to mutually prevent one another's motion. Dislocation motion is generally more difficult in BCC metals versus HCP metals. Dislocations prefer to slip on high density planes and in high density directions within a crystal. Dislocations feature strain fields that interact with other strain fields in a crystal (such as those produced by other crystalline defects). Dislocation density (count per volume) generally increases during plastic deformation at room temperature. Dislocations move in response to local shear stresses within a crystal.

Explanation / Answer

Dislocation

False statement regarding dislocations would be,

Disolocations that are in close proximity tend to mutually prevent one another's motion.

Disolocations feature strain fields that interact with other strain fields in a crystal (such as those produced by other crystalline defects)

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