Abstract
The study of ordered alloys by means of conventional X-ray diffraction methods is hampered by the fact that even single crystals of such alloys are invariably fragmented in symmetry related domains; unscrambling of such combined patterns into mono domain patterns is usually not straightforward. In electron diffraction it is on the other hand often possible to select a single domain on the image and obtain a mono-domain diffraction pattern.The use of suitable high resolution imaging techniques allows often to derive a trial structure, for which the image and the diffraction pattern can be calculated and compared with the observations. It is our intention to demonstrate how the combined use of both techniques allows the determination of crystal structures of rather complicated alloys in the gold-manganese and gold-magnesium systems.
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More From: Proceedings, annual meeting, Electron Microscopy Society of America
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