A dislocation whose Burgers vector is not a full translation of the perfect crystal, so its glide can leave a planar stacking fault. Vector conservation and the actual slip plane constrain reactions and dissociation.
A sessile partial junction associated with intersecting stacking faults. A typical FCC resultant has vector . Its Burgers vector and junction line can define a plane outside the ordinary glide family.
An FCC partial dislocation with Burgers vector lying in a close-packed plane. Two suitable Shockley vectors can sum to an FCC perfect vector .
A perfect vector can separate into two in-plane Shockley partials bounding a stacking-fault ribbon. The sum of squared Burgers magnitudes falls from to , reducing the simplest elastic line-energy estimate, while stacking-fault area costs energy.
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Partial dislocation, also known as subluxation, refers to a situation in which a bone is partially displaced from its normal anatomical position in a joint. Unlike a complete dislocation, where the bones are fully separated from their joint surfaces, a partial dislocation involves a situation where the joint surfaces remain in contact but are misaligned. This can lead to pain, swelling, and reduced range of motion in the affected joint.