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Also a therefore 6 35 show that the atomic packing

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Unformatted text preview: atomic radius. Also, = a. Therefore, 6. 3.5 Show that the atomic packing factor for BCC is 0.68. Solution The atomic packing factor is defined as the ratio of sphere volume to the total unit cell volume, or Since there are two spheres associated with each unit cell for BCC Also, the unit cell has cubic symmetry, that is VC = a3. 3.3, and Thus, But a depends on R according to Equation 7. A) B) Because the diagonal of the top (bottom) faces is close-packed direction, it means: 9. 3.22 List the point coordinates for all atoms that are associated with the FCC unit cell (Figure 3...
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