Theoretical Diffraction Pattern Characteristics of Cubic Twin Crystal

SCIENCE OF ADVANCED MATERIALS(2022)

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摘要
Twin crystal is a common lattice arrangement of crystal structure. The commonly used characterization methods for crystal structure include transmission electron diffraction (TED) pattern and electron backscatter diffraction (EBSD) pattern, but there is currently no specific reference standard for twin crystal. In this research, the mathematical relationship between crystal structure and TED and EBSD patterns of twin was calculated. The characteristics of twin electron diffraction spectrum, as well as the calibration of TED and EBSD patterns, were discussed and analyzed towards the examples of face-centered cubic crystal and body-centered cubic crystal. Overall, our results establish a theoretical calculation standard of diffraction spectrum, which provides a reference for further explorations to characterization of twin crystal structures.
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关键词
Transmission Electron Diffraction, Electron Back-Scattered Diffraction, Twin Crystal, Cubic Lattice System
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