Effect of Annealing on the Structure of Metallic Diffusive Membrane Filters on the Base of Palladium

Resumo

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.