Some Applications of Convergent Beam Electron Diffraction in Metallurgical Research
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Summary
Crystal structure characterization of materials at very high spatial resolution by convergent beam electron diffraction (CBD) analysis has been receiving increasing attention since the advent of the modern probe forming electron microscopes. The combination of a fine probe and a high diffraction angle in CBD provides, among others, three-dimensional crystal structure and symmetry information from very small regions or second phase particles. Such information is essential to unambiguously determine the crystal structure of complex phases. The paper describes the basic principles of CBD and illustrates how the technique has been routinely and effectively used in the analysis of second phase particles in nickel-base and oxide dispersion strengthened alloys.
Keywords
Reciprocal Lattice Convergent Beam Diffraction Double Diffraction Reciprocal Lattice Point Ewald SpherePreview
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References
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