Improvements in the properties of internal-tin Nb/sub 3/Sn

Author

Gregory, E. ; Gulko, E.A. ; Pyon, T.

Author_Institution

IGC Adv. Superconductors, Waterbury, CT, USA

Volume

7

Issue

2

fYear

1997

fDate

6/1/1997 12:00:00 AM

Firstpage

1498

Lastpage

1503

Abstract

A review is given of the present status of Stage IV of the strand production at IGC for the Central Solenoid (CS) Model Coil for the International Thermonuclear Experimental Reactor, (ITER). The design of this production strand was essentially frozen more than a year ago but a parallel development program has been carried out to improve the properties of internal-tin processed Nb/sub 3/Sn for fusion and other applications. The H/sub cl/* and T/sub c/* have been raised, the J/sub c/ controlled over a wide range of values, and the losses lowered in a number of different ways. An examination of the microstructure and electrical properties after a series of different thermomechanical treatments has been carried out and some of the preliminary results are described.

Keywords

critical current density (superconductivity); niobium alloys; superconducting coils; superconducting magnets; superconducting materials; tin alloys; Central Solenoid Model Coil; ITER; International Thermonuclear Experimental Reactor; Nb/sub 3/Sn; critical current density; internal-tin Nb/sub 3/Sn; strand production; Conductors; Fabrication; Fusion reactor design; Inductors; Niobium; Production; Solenoids; Superconducting coils; Superconductivity; Tin;

fLanguage

English

Journal_Title

Applied Superconductivity, IEEE Transactions on

Publisher

ieee

ISSN

1051-8223

Type

jour

DOI

10.1109/77.620857

Filename

620857