Question

Explain the differences between FCC, BCC, CPH unit cell structures in metal and give examples of each.

Answer 1

The differences between FCC, BCC, and CPH unit cell structures in metals are explained with examples of metals that crystallize in each structure.

Step-by-step explanation:

The differences between FCC, BCC, and CPH unit cell structures in metals are as follows:

1. Face-Centered Cubic (FCC): In the FCC structure, there are eight atoms at each corner of the cube and six atoms in the center of each face. Examples of metals that crystallize in an FCC structure include aluminum, copper, and lead.
2. Body-Centered Cubic (BCC): In the BCC structure, metal atoms occupy the eight corners of a cube and one atom in the very center. Examples of metals that crystallize in a BCC structure include iron and chromium.
3. Close-Packed Hexagonal (CPH): The CPH structure is hexagonally shaped and has a coordination number of twelve. Examples of metals that crystallize in a CPH structure include magnesium and zinc.