Heuristic Model of Deformation Dependence of Total Integrated Intensity of Dynamical Diffraction for Diagnostics of Single Crystals with Defects of Several Types

Issues » Volume 40, Issue 9

V. B. Molodkin, H. I. Nyzkova, V. V. Lizunov, V. V. Molodkin, S. V. Dmitriev, L. I. Makarenko, O. S. Kononenko, I. I. Demchyk, N. P. Irkha

G. V. Kurdyumov Institute for Metal Physics, NAS of Ukraine, 36 Academician Vernadsky Blvd., UA-03142 Kyiv, Ukraine

Received: 17.06.2018. Download: PDF

For the development of approach to diagnostics of single crystals with microdefects by the method of deformation dependences (DD) of the total integrated intensity of dynamical diffraction (TIIDD), the corresponding heuristic model is created. The proposed model is correct in cases, when the diffuse component of the TIIDD is comparable with its coherent component or substantially exceeds it. The measurement of the DD TIIDD under various diffraction conditions and in different deformation regions makes it possible to determine both the defect-structure parameters and the required DD characteristics, which are changed due to microdefects. As a result, in the absence of the rigorous theory for this case, a simplified model without the use of reference samples for diagnostics of chaotically distributed microdefects by the DD TIIDD method is created.

Key words: integrated dynamical diffractometry, diffuse scattering, microdefects.

URL: http://mfint.imp.kiev.ua/en/abstract/v40/i09/1133.html

DOI: https://doi.org/10.15407/mfint.40.09.1133

PACS: 61.05.cc, 61.05.cf, 61.05.cp, 61.72.Dd, 61.72.Lk, 81.40.Ef

Citation: V. B. Molodkin, H. I. Nyzkova, V. V. Lizunov, V. V. Molodkin, S. V. Dmitriev, L. I. Makarenko, O. S. Kononenko, I. I. Demchyk, and N. P. Irkha, Heuristic Model of Deformation Dependence of Total Integrated Intensity of Dynamical Diffraction for Diagnostics of Single Crystals with Defects of Several Types, Metallofiz. Noveishie Tekhnol., 40, No. 9: 1133—1147 (2018) (in Russian)

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