Close Packed Structures
- The second plane in both HCP and FCC is situated in
the “holes” above the first plane of atoms.
- Two possible placements for the third plane of atoms
- Third plane is placed directly above the first plane
of atoms
- ABA stacking -- HCP structure
- Third plane is placed above the “holes” of the first
plane not covered by the second plane
- ABC stacking -- FCC structure