Question

Question 10

The planar density for the {110} family of planes in a BCC unit cell is:
(give your answer in decimals)

Question 11

The planar density for the {111} planes in FCC is:
(give your answer in decimals)

Question 12

The planar densitiy for the basal {001} planes in HCP is:
(give your answer in decimals)

Question 13

These close packed planes and directions are important because

a. they give symmetry to the unit cell

b. they increase the strength of the crystal

c. they are the planes that slip will not occur on

d. they are the planes that slip will most likely occur on