Properties of multifilamentary Nb/sub 3/Sn fiber-reinforced superconductors for high field pulsed magnets

Author

Tateishi, H. ; Arai, K. ; Agatsuma, K.

Author_Institution

Electrotech. Lab., Tsukuba, Japan

Volume

5

Issue

2

fYear

1995

fDate

6/1/1995 12:00:00 AM

Firstpage

1587

Lastpage

1590

Abstract

We are developing Nb/sub 3/Sn fiber-reinforced superconductors (FRS) for high field pulsed magnets. Multifilamentary FRS are fabricated by sputtering niobium and bronze around 22 tungsten fibers of 20-/spl mu/m diameter. The conductors are then heat-treated in an electric furnace and are solder-filled after plating copper chemically. Critical current densities of FRS have been measured up to 14.5 T. We have investigated the effect of heat-treatment conditions, tin concentration of bronze and titanium addition into niobium. Tensile stress-strain measurement showed that FRS has excellent stress toughness.<>

Keywords

critical current density (superconductivity); fibre reinforced composites; heat treatment; multifilamentary superconductors; niobium alloys; sputter deposition; stress-strain relations; superconducting device testing; superconducting magnets; tensile strength; tin alloys; type II superconductors; 14.5 T; 20 mum; Nb/sub 3/Sn; bronze; critical current densities; electric furnace; heat-treatment; high field pulsed magnets; multifilamentary fiber-reinforced superconductors; solder-filling; sputtering; stress toughness; tensile stress-strain measurement; type II superconductors; Conductors; Furnaces; Magnets; Multifilamentary superconductors; Niobium; Resistance heating; Sputtering; Tensile stress; Tin; Tungsten;

fLanguage

English

Journal_Title

Applied Superconductivity, IEEE Transactions on

Publisher

ieee

ISSN

1051-8223

Type

jour

DOI

10.1109/77.402876

Filename

402876