What are Bravais lattices?

1.	What are Bravais lattices?
Answer» 1. There are seven crystal systems according to the edges (a. b, c) and angles (α, β, γ). 2. The constituents of the crystal may be present at corners, face centres, body centres, edge centres and voids. 3. By mathematical analysis, it has been proved that only fourteen different kinds of space lattices are possible. 4. Hence there are fourteen different ways of arrangement of the lattice basis. 5. These fourteen lattices of seven crystal systems are called Bravais lattices.

Answer»

1. There are seven crystal systems according to the edges (a. b, c) and angles (α, β, γ).

2. The constituents of the crystal may be present at corners, face centres, body centres, edge centres and voids.

3. By mathematical analysis, it has been proved that only fourteen different kinds of space lattices are possible.

4. Hence there are fourteen different ways of arrangement of the lattice basis.

5. These fourteen lattices of seven crystal systems are called Bravais lattices.

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What are Bravais lattices?

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