Page 39 - eBook T2 eISBN2
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Face Center Cubic -FCC
Eg: Alumnum-Al, Copper-Cu , Gold- Au, Nickel- Ni, Silver-Ag
Figure 2.22: Face Center Cubic
How to calculate no of atom in ONE Face Center Cubic?
8 atoms at each corner X 1/8 section = 1 atom
6 atoms at each facet X ½ section = 3 atoms
Total Atom = 4 atoms
Hexagonal Close-packed
cth : Berilium-Be, Magnesium-Mg dan Zinc-Zn
Figure 2.23: Hexagonal Close-packed
How to calculate no of atom in ONE Hexagonal Closed Packed?
12 atoms at each corner X 1/6 section = 2 atom
2 atoms at each facet X ½ section = 1 atom
3 full atom at center of the structure = 3 atom
Total Atom = 6 atoms
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