Effect of Doping, Composite Geometry and Diffusion Annealing Schedules on the Structure of Nb3Sn Layers in Nb/Cu-Sn Wires

E.N. Popova; Vladimir V. Popov; E.P. Romanov; S.V. Sudareva; E.A. Dergunova; A.E. Vorobyova; S.M. Balaev; A.K. Shikov

doi:10.4028/www.scientific.net/DDF.273-276.514

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Estimation of the Rate of Hydrogen Penetration in a Welded API 5L Steel Pipe
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Mössbauer Spectroscopy Studies of Grain Boundaries in Nanostructured Metals
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Effect of Doping, Composite Geometry and Diffusion Annealing Schedules on the Structure of Nb₃Sn Layers in Nb/Cu-Sn Wires
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Kinetics Parameters of Atomic Migration and Diffuse Scattering of Radiations within the F.C.C.-Ni–Al Alloys
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Atomic-Ordering Kinetics and Diffusivities in Ni–Fe Permalloy
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Al-Li Surface Alloying in the Electrolytic Method
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Investigation of Homogenization Treatment in Al- Li- Cu- Zr Alloys
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Effect of Doping, Composite Geometry and Diffusion Annealing Schedules on the Structure of Nb₃Sn Layers in Nb/Cu-Sn Wires

Abstract:

Kinetics of formation of superconducting Nb3Sn layers and the structure of bronzeprocessed Nb/Cu-Sn composites with Zr, Zn or Mg-doped matrixes or Ti-doped Nb filaments of different geometry have been studied by the methods of TEM, SEM and electron-probe microanalysis. All the doping elements have been found to accelerate the rate of growth of the diffusion Nb3Sn layers and consequently their thickness. Correlation between the diffusion annealing schedules, the geometry of Nb filaments, the structure of the diffusion Nb3Sn layers and the current-carrying characteristics of multifilamentary Nb/Cu-Sn composites has been established.