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Unformatted text preview: Bravais lattice, (b) the bodycentered tetragonal lattice, and (c) the body centered orthorhombic lattice. 8. Use a sketch to determine which lattice points lie along the [111] direction in the (a) bcc, (b) bodycentered tetragonal, and (c) bodycentered orthorhombic unit cells of Table 3.2 (textbook). 9. For BCC iron, compute (a) the interplanar spacing and b) the diffraction angle for the (220) set of planes. The lattice parameter for Fe is 0.2866 nm. Also, assume that monochromatic radiation having a wavelength of 0.1790 nm is used and the order of reflection is 1. 10. Determine the directional indices for the vector illustrated in the hexagonal crystal. a 1 a 2 a 3 z 11. Determine the MillerBravais indices for the plane indicated below. a 1 a 2 a 3 z...
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 Spring '10
 SIMON
 Crystallography, Crystal system, Shackelford, ionic packing factor, 0.1790 nm

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