PPT Slide
Every dislocation then produces slip in a specific direction (parallel to the Burgers vector) and moves on a specific slip plane.
This combination is referred to as a slip system. Each crystal structure has a number of slip systems.
For example, one specific slip system in an FCC metal would be or slip on a (111) plane in the direction, while altogether there are twelve possible slip systems of this type (twelve possible {111}> combinations).