PPT Slide
Slip by this two-stage process creates a stacking fault ABCAC ABC in the stacking sequence.
As Fig. 13-4 shows, the dislocation with Burgers vector has been dissociated into two partial dislocations and .
This dislocation reaction was suggested by Heidenreich and Shockley.
Therefore this dislocation arrangement is often known as Shockley partials, since the dislocations are imperfect ones which do not produce complete lattice translations.
Figure 13-4 represents the situation looking down on (111) along .