Figure 3.22 shows an x-ray diffraction pattern for α-iron taken using a diffractometer and monochromatic x-radiation having a wavelength of 0.1542 nm; each diffraction peak on the pattern has been indexed. Compute the interplanar spacing for each set of planes indexed; also determine the lattice parameter of Fe for each of the peaks.

Transcribed Image Text:

(110 (211) (200) 100 Diffraction angle 20 FIGURE 3.22 Diffraction pattern for polycrystalline α-iron.