Title :
Nb3Sn superconducting wire, reinforced by Cu-Nb microcomposite material
Author :
Pantsyrnyi, V. ; Shikov, A. ; Vorobieva, A. ; Soudiev, S. ; Sergeev, V. ; Dergunova, E. ; Sinitsyn, I. ; Beliakov, N. ; Kukin, S.
Author_Institution :
Bochvar Res. Inst. of Inorg. Mater., Moscow, Russia
fDate :
6/1/2004 12:00:00 AM
Abstract :
Nb3Sn superconductors with Cu-stabilization partly replaced by Cu-18 wt% Nb reinforcing layer have been developed and produced. The comparative analysis of superconductors with and without such layer was done. The level of ultimate tensile strength in reacted reinforced wire was higher by the factor of 1.4. Results of metallographic investigations of the reaction of Sn with Cu-matrix during heat treatment are presented. The current capacity of superconductors and "n" parameter have been estimated in magnetic field of 12 T at 4.2 K. Conductors microstructure has been studied and relationship with mechanical and superconducting properties has been discussed.
Keywords :
composite superconductors; copper alloys; crystal microstructure; heat treatment; metallography; niobium alloys; superconducting magnets; tin alloys; type II superconductors; 12 T; 4.2 K; Cu-Nb microcomposite material; Cu-matrix; Cu-stabilization; CuNb; Nb reinforcing layer; Nb3Sn; Nb3Sn superconducting wire; conductor microstructure; heat treatment; magnetic field; mechanical properties; superconducting magnets; superconducting materials; superconducting properties; tensile strength; Conductors; Heat treatment; Magnetic fields; Magnetic properties; Microstructure; Niobium; Parameter estimation; Superconductivity; Tin; Wire; Microcomposites; reinforcement; superconducting magnets; superconducting materials;
Journal_Title :
Applied Superconductivity, IEEE Transactions on
DOI :
10.1109/TASC.2004.830365
