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Electron diffraction study of the structural features of kaolinites

机译:电子衍射研究高岭土的结构特征

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The structural variations of kaolinites have been investigated based on oblique-texture electron diffraction patterns. The features of manifestation of the 2D lattice of kaolinite layers in the geometry of the 20l and 13l reflections have been revealed. The manifestation of violations in the regular alternation of layers in kaolinites in the diffraction patterns has been analyzed using a numerical simulation of the diffraction profiles along the first (02l, 11l) and second (20l, 13l) ellipses of oblique-texture electron diffraction patterns. The simulation was performed for finite sequences of ten layers using the statistical Markov model in the quasihomogeneous approximation. It is shown that oblique-texture electron diffraction patterns can be used to reveal the coexistence of two phases with different structural perfections and particle morphologies in kaolinite samples.
机译:高岭石的结构变化已基于斜纹电子衍射图进行了研究。高岭石层的二维晶格在20l和13l反射的几何形状中的表现特征已被揭示。通过对沿斜纹理电子衍射图样的第一个(02l,11l)和第二个(20l,13l)椭圆的衍射曲线进行数值分析,分析了衍射图样中高岭石中各层规则交替的违反表现。 。使用准均匀逼近中的统计马尔可夫模型对十层的有限序列进行了仿真。结果表明,斜纹理电子衍射图谱可用于揭示高岭石样品中具有不同结构完善度和颗粒形态的两相共存。

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