How does hexagonal packing work? Hexagonally tightly packed (hcp) describes layers of packed spheres in which they alternately cover and expose one another. A close-packed structure called a slip framework is hexagonally close-packed. The hcp structure is very universal for elemental metals, including beryllium.
unit cell for which lattice parameter c/a is 1.58
The radius of the titanium atom is 0.1445nm=1.445×−8c
For a titanium unit cell
Atomic weight (A)=47.867/mol
Calculate the unit cell volume
(V)c=6R2c√3=6×(1.445×10−8)2×1.58a√3
Here
a=2R
(Vc)=6×(1.445×10−8)2×1.58×(2×1.445×10−8)×√3=9.9084×10−23 cm3/unitcell
To know more about close-packed structure visit:-
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