Packing Efficiency in Simple Cubic Lattice
a = 2r
Where a = Edge length or side of the cube
r = radius of each particle,
The volume of the cubic unit cell = a3 = (2r)3 = 8r3
A simple cubic unit cell contains only 1 atom. The volume of the occupied space =4/3 Π r3
Packing efficiency = (Volume of one atom X 100)/( Volume of cubic unit cell)
Therefore it can be concluded that ccp and hcp has maximum packing efficiency.
