What is the difference between FCC and BCC crystal structure ?
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Explanation:
The hexagonal closest packed (hcp) has a coordination number of 12 and contains 6 atoms per unit cell. The face-centered cubic (fcc) has a coordination number of 12 and contains 4 atoms per unit cell. The body-centered cubic (bcc) has a coordination number of 8 and contains 2 atoms per unit cell.
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The body-centered cubic structure has an atom at all 8 corner positions, and another one at the center of the cube. FCC and BCC also have many different measurements within the unit cell, as shown in the table below.
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