Тип публикации: статья из журнала
Год издания: 2024
Идентификатор DOI: 10.1134/S1027451024701416
Ключевые слова: synchrotron radiation, In situ analysis, diffraction analysis, x-ray phase analysis, corundum number method, rietveld method, coherent-scattering region, Scherrer method, multilayer coatings
Аннотация: A system of automated software and methodological support SPAAR XRD is developed to process sets of diffraction patterns obtained from synchrotron-radiation sources, enabling analysis of the phase composition and structural parameters of materials. This system incorporates a range of methods and software tools for both the 3D and 2D visualization of diffraction patterns, selection of informative patterns, cluster X‑ray phase identification, and multireflection quantitative X-ray phase analysis using the reference-intensity-ratio method. It also calculates the sizes of coherent-scattering regions employing the simplified Scherrer method. The paper presents results from using this system to analyze a series of diffraction patterns collected during two in situ experiments conducted with a vacuum electron–ion–plasma installation developed at the Tomsk Center of Competence in Beam-Plasma Engineering and Synchrotron Research, Institute of High Current Electronics, Siberian Branch, Russian Academy of Sciences. The study examines the high-temperature phase transition between the compounds YbaCo4O8.4 and YbaCo4O7 over the temperature range of 300–460°C. It also investigates the phase-formation process in multilayer Y–Al–O coatings, which are formed through the alternate deposition of Y and Al on a WC8 alloy substrate in an argon–oxygen environment at 350°C.
Журнал: Journal of Surface Investigation: X-Ray, Synchrotron and Neutron Techniques
Выпуск журнала: Т. 18, № 6
Номера страниц: 1466-1476
ISSN журнала: 10274510
Место издания: Moscow
Издатель: Pleiades Publishing, Ltd.