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Draw the unit cell of HCP. What is its co-ordination number, atomic radius, effective number of atoms per unit cell. Also calculate its packing factor .
written 4.5 years ago by gravatar for teamques10 teamques10 ★ 70k modified 3.9 years ago by gravatar for pedsangini276 pedsangini276 • 4.8k
engineering physics
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written 4.5 years ago by gravatar for teamques10 teamques10 ★ 70k

Cell of an HCP lattice is visualized as a top and bottom plane of 7 atoms, forming a regular hexagon around a central atom. In between these planes is a half-hexagon of 3 atoms.

There are two lattice parameters in HCP, a representing base and crepresenting height.

Coordination Number:

The …

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