Dislocations 1 and 2 are imperfections in a monatomic, primitive cubic crysta! with one atom per unit cell (space group Pm 3 m, with site la occupied). Answer the questions below for both dislocations 1 and 2, characterized by these b and i values: bi a[010 , = [001 (dislocation 1) b2 = a[0 10 iz = [001] (dislocation 2) (a) Is the dislocation edge or screw in character? (b) Draw a schematic picture of the crystal lattice around the dislocation, labeling your coordinate system. (c) What is the glide plane of the dislocation? (If not a unique glide plane, what are the constraints on the glide plane?) Dislocations 1 and 2 are imperfections in a monatomic, primitive cubic crysta! with one atom per unit cell (space group Pm 3 m, with site la occupied). Answer the questions below for both dislocations 1 and 2, characterized by these b and i values: bi a[010 , = [001 (dislocation 1) b2 = a[0 10 iz = [001] (dislocation 2) (a) Is the dislocation edge or screw in character? (b) Draw a schematic picture of the crystal lattice around the dislocation, labeling your coordinate system. (c) What is the glide plane of the dislocation? (If not a unique glide plane, what are the constraints on the glide plane?)