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

Volume

30

Issue

4

fYear

1994

fDate

7/1/1994 12:00:00 AM

Firstpage

2415

Lastpage

2418

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;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.305764

Filename

305764