Elements of X-ray DiffractionThis is a reproduction of a book published before 1923. This book may have occasional imperfections such as missing or blurred pages, poor pictures, errant marks, etc. that were either part of the original artifact, or were introduced by the scanning process. We believe this work is culturally important, and despite the imperfections, have elected to bring it back into print as part of our continuing commitment to the preservation of printed works worldwide. We appreciate your understanding of the imperfections in the preservation process, and hope you enjoy this valuable book. |
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Page 84
... Bragg law . Since sin @ cannot exceed unity , we may write ηλ 2d ' = sin 0 < 1 . ( 3-2 ) Therefore , nλ must be less than 2d ' . For diffraction , the smallest value of n is 1. ( n = 0 corresponds to the beam diffracted in the same ...
... Bragg law . Since sin @ cannot exceed unity , we may write ηλ 2d ' = sin 0 < 1 . ( 3-2 ) Therefore , nλ must be less than 2d ' . For diffraction , the smallest value of n is 1. ( n = 0 corresponds to the beam diffracted in the same ...
Page 112
... Bragg law is not satisfied , no diffracted beam can occur ; however , the Bragg law may be satisfied for a certain set of atomic planes and yet no diffraction may occur , as in the example given at the beginning of this chapter ...
... Bragg law is not satisfied , no diffracted beam can occur ; however , the Bragg law may be satisfied for a certain set of atomic planes and yet no diffraction may occur , as in the example given at the beginning of this chapter ...
Page 124
... Bragg law is exactly satisfied . As mentioned in Sec . 3-7 , the intensity of reflection is greatest at the exact Bragg angle but still appreciable at angles deviating slightly from the Bragg angle , so that a curve of intensity vs. 20 ...
... Bragg law is exactly satisfied . As mentioned in Sec . 3-7 , the intensity of reflection is greatest at the exact Bragg angle but still appreciable at angles deviating slightly from the Bragg angle , so that a curve of intensity vs. 20 ...
Contents
THE GEOMETRY OF CRYSTALS | 29 |
CHAPTER 3 | 78 |
CHAPTER 4 | 104 |
Copyright | |
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Common terms and phrases
absorption coefficient absorption edge alloy analysis angle atomic number austenite axis back-reflection Bragg angle Bragg law Bravais lattice calculated camera circle composition constant cos² counter crystal cubic curve Debye ring Debye-Scherrer decrease determined diffracted beam diffraction lines diffraction pattern diffractometer direction distance electrons elements equation error example face-centered face-centered cubic factor film filter fluorescent fluorescent radiation given grain hexagonal incident beam indices integrated intensity lattice parameter martensite measured metal normal obtained orientation Orthorhombic parallel percent phase photograph pinhole pole figure position powder pattern produced projection pulses rays reciprocal lattice reciprocal-lattice reflecting planes relative residual stress rhombohedral rotation sample scattering shown in Fig sin² slit solid solution spacing specimen spectrometer sphere spots stereographic structure substance surface temperature tetragonal thickness tion transmission twin unit cell values vector voltage wave wavelength x-ray diffraction x-ray method x-ray tube zero zone