Mechanical properties of a niobium-tin superconductor reinforced by tantalum cores

Author

Kondoh, J. ; Tateishi, H. ; Umeda, M. ; Arai, K. ; Agatsuma, K. ; Gotoh, K. ; Saitoh, T.

Author_Institution

Electrotech. Lab., Tsukuba, Japan

Volume

11

Issue

1

fYear

2001

fDate

3/1/2001 12:00:00 AM

Firstpage

3635

Lastpage

3638

Abstract

We have been developing fiber-reinforced type of niobium-tin superconductor for large scale high field magnets. In this conductor, each niobium-tin filament has a tantalum core. Tantalum is selected as material for the core since it has good ductility with mechanical strength and hence a conventional drawing method can be applied to fabricate a conductor. Stress-strain characteristics and the irreversible strain limits of the conductor with different heat-treatment conditions are measured. Combining these results, discussions about the mechanical properties of the conductor are presented

Keywords

composite superconductors; fibre reinforced composites; heat treatment; niobium alloys; stress-strain relations; tantalum; tin alloys; Nb₃Sn; Ta; drawing method; ductility; fiber-reinforced type; heat-treatment conditions; irreversible strain limits; large scale high field magnets; mechanical properties; mechanical strength; niobium-tin superconductor; stress-strain characteristics; tantalum cores; Conducting materials; Large-scale systems; Magnetic cores; Magnetic materials; Mechanical factors; Niobium-tin; Strain measurement; Superconducting filaments and wires; Superconducting magnets; Superconducting materials;

fLanguage

English

Journal_Title

Applied Superconductivity, IEEE Transactions on

Publisher

ieee

ISSN

1051-8223

Type

jour

DOI

10.1109/77.919852

Filename

919852