Journal of Siberian Federal University. Mathematics & Physics: Effect of Doping Mode and Composite Geometry on the Structure of Nanocrystalline Nb3Sn Layers in Superconducting Nb/Cu-Sn Composites

Journal of Siberian Federal University. Mathematics & Physics / Effect of Doping Mode and Composite Geometry on the Structure of Nanocrystalline Nb₃Sn Layers in Superconducting Nb/Cu-Sn Composites

Issue: Journal of Siberian Federal University. Mathematics & Physics. 2011 4 (2)
Authors: Deryagina, Irina L.; Popova, Elena N.; Zaharevskaya, Evgeniya G.; Romanov, Evgeny P.; Vorobyova, Alexandra E.; Dergunova, Elena A.; Balaev, Semeon M.
Contact information: Deryagina, Irina L. : e-mail: ; Popova, Elena N. :; Zaharevskaya, Evgeniya G. :; Romanov, Evgeny P. :; Vorobyova, Alexandra E. :; Dergunova, Elena A. :; Balaev, Semeon M. :
Keywords: structure; nanocrystalline structure; superconducting composites; bronze-processed composites; doping
Abstract: Multifilamentary superconducting bronze-processed Nb/Cu-Sn composites doped with Ti have been studied by transmission and scanning electron microscopy. The effect of doping mode (artificial doping of Nb filaments by inserts of NbTi alloy or Ti doping of the bronze matrix) and external wire diameter on the morphology of Nb filaments and Nb₃Sn layers and on grain sizes of the superconducting phase has been revealed. Correlation between the average grain size of Nb₃Sn phase and critical current density of a composite is demonstrated.
Pages: 149-161
Paper at repository of SibFU: https://elib.sfu-kras.ru/handle/2311/2281