Dispersion Strengthened Nb ₃Sn Wire
Chen, J.; Han, K.; Kalu, P.; Markiewicz, W.
Applied Superconductivity, IEEE Transactions on
Volume 17, Issue 2, June 2007 Page(s):2584 - 2587
Digital Object Identifier   10.1109/TASC.2007.899568
Summary:Dispersion strengthened Nb₃Sn and regular Nb₃Sn composites were fabricated. Their mechanical and superconducting properties were measured and compared. An increase in strength up to 10% and J_c (18 T, 4.2 K) up to 28% was achieved. The nanoparticle strengthened Cu, as a replacement of Cu, could be co-deformed with Nb to make Nb₃Sn wire without changing the volume fractions of Nb and Sn and heat treatment conditions. The paper argues that nanoparticle pining effects play a major role in improvement of the properties.

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