Enhancement of critical current density and reduction of proximity coupling in fine filamentary NbTi with Si and Mn alloyed Cu matrices

Author

Liu, H. ; Gregory, E. ; Cross, R.W.

Author_Institution

IGC Adv. Superconductors Inc., Waterbury, CT, USA

Volume

30

Issue

4

fYear

1994

fDate

7/1/1994 12:00:00 AM

Firstpage

2304

Lastpage

2307

Abstract

Critical current density J_c and magnetization data are given on fine filamentary NbTi materials with a series of different copper alloy matrices containing Si, Mn, or both. By applying the correct thermomechanical treatment, materials of this type can give high J_c´s with minimal electrical coupling. The use of Si has a particular advantage in that it greatly reduces intermetallic compound formation and may, therefore, obviate the need for a barrier around the filaments under certain conditions

Keywords

copper alloys; critical current density (superconductivity); manganese alloys; niobium alloys; silicon alloys; superconducting cables; titanium alloys; Cu alloy matrices; Cu-Mn; Cu-Mn-Si; Cu-Si; NbTi; critical current density; electrical coupling; fine filamentary NbTi; intermetallic compound formation; proximity coupling; thermomechanical treatment; Billets; Conductors; Copper alloys; Couplings; Critical current density; MONOS devices; Manganese alloys; Niobium compounds; Silicon alloys; Titanium compounds;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.305736

Filename

305736