Abstract—
Using repeated bundle extrusion of a Cu/NbTi composite, we have obtained a high-strength heterophase alloy having superconducting properties. X-ray diffraction characterization has shown that the material we obtained has an unstressed, relaxed structure in the form of self-consistent, locally diffusion-alloyed atomic groups ranging widely in size, which can be divided into three groups: (1) microcrystalline long-range-ordered particles about 450 Å in size, showing up as Debye peaks with sharp tops; (2) mesoscopic clusters with a nanoscale atomic order, responsible for broad diffuse lines; and (3) small low-dimensional atomic groups with short-range order (10–50 Å), responsible for incoherent diffuse X-ray scattering (very broad diffuse halos).
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Samoilenko, Z.A., Ivakhnenko, N.N., Pushenko, E.I. et al. Self-Organization of Various-Scale Structural Groups in a Cu/NbTi Composite under the Effect of Hydrostatic Bundle Extrusion. Inorg Mater 59, 932–939 (2023). https://doi.org/10.1134/S0020168523090121
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DOI: https://doi.org/10.1134/S0020168523090121