X-Ray Diffraction: A Practical ApproachIn this, the only book available to combine both theoretical and practical aspects of x-ray diffraction, the authors emphasize a "hands on" approach through experiments and examples based on actual laboratory data. Part I presents the basics of x-ray diffraction and explains its use in obtaining structural and chemical information. In Part II, eight experimental modules enable the students to gain an appreciation for what information can be obtained by x-ray diffraction and how to interpret it. Examples from all classes of materials -- metals, ceramics, semiconductors, and polymers -- are included. Diffraction patterns and Bragg angles are provided for students without diffractometers. 192 illustrations. |
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Page 18
... slits were allowed to interfere . The pattern produced on a screen placed beyond the slits consisted of a series of bright and dark lines , as shown schematically in Fig . 12. If we replace the double slits with a grid consisting of ...
... slits were allowed to interfere . The pattern produced on a screen placed beyond the slits consisted of a series of bright and dark lines , as shown schematically in Fig . 12. If we replace the double slits with a grid consisting of ...
Page 19
... slits interfere , and the pattern observed on the screen consists of a series of white ( max ) and dark ( min ) lines ( not drawn to scale . ) grating . If two diffraction gratings are now superimposed with their lines intersecting at ...
... slits interfere , and the pattern observed on the screen consists of a series of white ( max ) and dark ( min ) lines ( not drawn to scale . ) grating . If two diffraction gratings are now superimposed with their lines intersecting at ...
Page 64
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Page 68
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Page 69
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Contents
3 | |
21 | |
Practical Aspects of XRay Diffraction | 63 |
Cubic Structures | 94 |
Hexagonal Structures | 125 |
Precise Lattice Parameter Measurements | 153 |
Phase Diagram Determination | 167 |
Quantitative Analysis of Powder Mixtures | 223 |
Identification of an Unknown Specimen | 237 |
Appendixes | 251 |
Atomic and lonic Scattering Factors of Some Selected | 255 |
Physical Constants and Conversion Factors | 261 |
Index | 271 |
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20 values absorption alloy aluminum amplitude ångstrom atomic scattering factor atoms per cell atoms per unit body-centered cubic Bragg angle Bragg's law Bravais lattice broadening close-packed components composition copper cos² crystal structure crystal systems crystallite CsCl cubic Bravais lattice detector determine diamond cubic diamond cubic structure diffracted beam electron energy equation example Experimental Module face-centered cubic face-centered cubic Bravais face-centering translations fcc structure grain hexagonal hkl a nm integrated intensity lattice parameter lattice parameter(s lattice point lattice strain metal Miller indices mixture NaCl structure obtained orthorhombic phase diagram point lattice polycrystalline powder quantum number radiation relative intensities shell shown in Fig silicon simple cubic sin² sin² 0 sin² sin² 0 values slits solid solution spacing structure factor Table Theta FIG Titanium unit cell unknown specimen wavelength x-ray diffraction pattern x-ray photon zinc blende