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Thermal Conductivity of Industrial \hbox {Nb}_{3} \hbox {Sn} Wires Fabricated by Various Techniques

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2 Author(s)
Bonura, M. ; Dept. of Appl. Phys., Univ. of Geneva, Geneva, Switzerland ; Senatore, C.

We have developed a new experimental setup specifically designed for measuring thermal conductivity on technical superconductors in the range of temperatures 3-330 K in magnetic fields up to 21 T. Three Nb3Sn wires, produced by the powder-in-tube technique, the bronze route, and the internal tin restacked-rod process, respectively, have been investigated. We show that, due to the complexity of the architecture of these wires, direct measurement of thermal conductivity is required for a correct estimation of thermal stability in superconducting magnets.

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Applied Superconductivity, IEEE Transactions on  (Volume:23 ,  Issue: 3 )