A Review of the Properties of Nb3Sn and Their Variation with A15 Composition, Morphology and Strain State

  title={A Review of the Properties of Nb3Sn and Their Variation with A15 Composition, Morphology and Strain State},
  author={A. Godeke},
  journal={Superconductor Science and Technology},
  • A. Godeke
  • Published 13 June 2006
  • Physics
  • Superconductor Science and Technology
Significant efforts can be found throughout the literature to optimize the current-carrying capacity of Nb3Sn superconducting wires. The achievable transport current density in wires depends on the A15 composition, morphology and strain state. The A15 sections in wires contain, due to compositional inhomogeneities resulting from solid-state diffusion A15 formation reactions, a distribution of superconducting properties. The A15 grain size can be different from wire to wire, and is also not… 
Evolution of the superconducting properties from binary to ternary APC-Nb3Sn wires
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The effect of tantalum and titanium additions on the composition, the superconducting properties, and their sensitivity to strain of bulk Nb3Sn is investigated. Using heat capacity analysis and


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Critical current densities up to 23 T measured on a series of 19 core Nb 3 Sn wires with Ta, Ti and Ni+Zn additions, prepared by the bronze route under identical conditions, show very similar results
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Bulk samples covering the entire homogeneity range of the Nb-Sn A15-phase were prepared by a new method: levitation melting under high argon pressure. The variations of the lattice parameter,
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A stress dependence of the critical current in thin films of Nb3Sn and V3Ga was found by Muller and Saurl in 1963, and in monofilamentary Nb3Sn wires by Beuheler and Levinstein2 in 1964. Later,