Abstract—The metallic filter foils of palladium-yttrium alloys are studied using X-ray diffraction analysis. The aim of the research is to study the high-temperature effects on phase transformations in palladium-based alloys. The change in the phase composition of the alloy and in its subsystems of defects were found upon the additional annealing of one of the membranes. A decrease in the microstrains was estimated by the change in the diffraction-reflections smearing after the annealing. The formation of regions with an increased lattice parameter in comparison with that of the matrix structure and effects of the high-temperature annealing on the structure of these regions are discussed.
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ACKNOWLEDGMENTS
The authors express their gratitude to the scientific group of the A.A. Baikov IMMS RAS, which prepared the foils for the study.
The X-ray diffraction measurements were performed using the unique scientific equipment of a synchrotron irradiation source of the Scientific Research Center of the Kurchatov Institute.
Funding
This work was supported by the state program of the Ministry of Science and Higher Education of the Russian Federation “Research and development of the priority fields of the scientific and technological complex of Russia 2014–2020”, agreement No. 14.619.21.0007, project RFMEFI61917X0007.
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Translated by O. Golovnya
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Akimova, O.V., Veligzhanin, A.A. Effect of Annealing on the Structure of Metallic Diffusive Membrane Filters on the Base of Palladium. Phys. Metals Metallogr. 120, 962–968 (2019). https://doi.org/10.1134/S0031918X19080027
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DOI: https://doi.org/10.1134/S0031918X19080027