Title :
Investigation on structure and properties of superconducting internal tin wire to be used for high field magnetic systems
Author :
Pantsyrny, V.I. ; Shikov, A.K. ; Beljakov, N.A. ; Potapenko, I.I. ; Parno, A.V. ; Nikulin, A.D.
Author_Institution :
A.A. Bochvar All-Union Sci. Res. Inst. of Inorg. Mater., Moscow, Russia
fDate :
7/1/1994 12:00:00 AM
Abstract :
Main stages of diffusion interaction between tin alloy with copper matrix and the material of Nb filaments in superconductors with 1 central and 7 distributed tin sources, containing 2000 to 14000 filaments have been investigated. The main temperature conditions for intermediate and final heat treatment stages have been chosen. Tin distribution over a copper matrix cross section has been shown not to exceed 2% at optimum heat treatment conditions. The conductor´s current carrying capacity interconnection with heat treatment routes has been studied. It was shown that the correct choice of a heat treatment route provides for high values of critical current density upto 1×105A/cm2 (12 T)
Keywords :
Tokamak devices; current density; heat treatment; superconducting magnets; tin; 12 T; Cu; Cu matrix; Nb; Nb filaments; Sn; Sn alloy; conductor´s current carrying capacity interconnection; critical current density; diffusion interaction; final heat treatment stages; high field magnetic systems; intermediate heat treatment stages; main temperature conditions; superconducting internal Sn wire; Conductors; Copper; Heat treatment; Magnetic field measurement; Multifilamentary superconductors; Niobium alloys; Superconducting filaments and wires; Superconducting magnets; Temperature; Tin alloys;
Journal_Title :
Magnetics, IEEE Transactions on
