Title :
The investigation of production process features and properties of Nb3Sn superconductors with extended internal tin sources
Author :
Pantsyrny, V.I. ; Nikulin, A.D. ; Shikov, A.K. ; Parno, A.V. ; Beljakov, N.A. ; Potapenko, I.I.
Author_Institution :
A.A. Bochvar´´s All Union Sci. Res. Inst. of Inorg. Mater., Moscow, Russia
fDate :
1/1/1992 12:00:00 AM
Abstract :
The main stages of the production of multifilamentary stabilized Nb3Sn-base superconductors with extended tin sources and niobium filament size down to 1 mm are investigated. It is shown that the application of different patterns of superconductor production makes it possible to vary over a wide range the content of stabilizing copper in a finished wire. The possibility of producing superconductors with the stabilizing copper content from 25 to 60% by the pattern suggested is shown. On the basis of preliminary investigations of the relation between heat-treatment parameters and the superconducting properties, it is established that critical current density (without copper) attains a value of 2.0×105 A/cm2 in a field of 8 T
Keywords :
composite superconductors; copper; critical current density (superconductivity); heat treatment; niobium alloys; tin alloys; type II superconductors; Nb3Sn superconductors; Nb3Sn-Cu; critical current density; current carrying capacity; extended internal tin sources; heat-treatment parameters; multifilamentary superconductors; production process features; wire; Conductors; Copper alloys; Heat treatment; Magnetic materials; Niobium; Production; Superconductivity; Tin alloys; Vacuum systems; Wire;
Journal_Title :
Magnetics, IEEE Transactions on
