Question 3. Close packed crystal structures. (15 pts) (a) What is a unit cell? Provide simple definition. (b) Sketch the
Posted: Thu Jul 14, 2022 2:45 pm
Question 3. Close packed crystal structures. (15 pts) (a) What is a unit cell? Provide simple definition. (b) Sketch the body-centered cubic unit cell. (c) For the BCC unit cell, define the coordination number using a sketch. (d) Show the calculation (with all terms defined) for determining the atomic packing factor (APF) for the BCC unit cell (assume hard ball, spherical atoms). (a) (b)