Jc(T,B) and E(T) Dependencies for NbTi Strands Used in ITER PF Insert Coil

Author

Kozlenkova, Nina I. ; Potanina, Liudmila V. ; Pantsyrnyi, Victor I. ; Gubkin, Igor N. ; Nikulenkov, Eugenyi V. ; Vorobieva, Alexandra E. ; Shikov, Alexander K. ; Vedernikov, Gennadyi P. ; Konovalov, Yuri V.

Author_Institution

Bochvar Res. Inst. of Inorg. Mater., Moscow

Volume

17

Issue

2

fYear

2007

fDate

6/1/2007 12:00:00 AM

Firstpage

2556

Lastpage

2559

Abstract

In the framework of the characterization of NbTi strands manufactured by Bochvar Institute for the ITER insert coil the representative database of J_c(B,T) and E(T) was obtained. Measurements of J_c(B,T) were carried out on the samples taken from several batches of the strand at magnetic fields ranging from 5 to 9 T and temperature range from 4.2 to 7 K. All the strands were produced using the identical heat treatment route. The E(T) characteristics were recorded to simulate the current sharing temperature (T_cs) test for ITER PF coil. The T_cs compiles 6.1 K-6.3 K at magnetic field of 6 T.

Keywords

critical current density (superconductivity); heat treatment; multifilamentary superconductors; niobium alloys; superconducting coils; titanium alloys; Bochvar Institute; E(T) dependencies; ITER PF insert coil; Jc(T,B) dependencies; NbTi; NbTi strands; identical heat treatment route; magnetic fields; magnetic flux density 5 T to 9 T; representative database; temperature 4.2 K to 7 K; Coils; Databases; Heat treatment; Magnetic field measurement; Magnetic fields; Manufacturing; Niobium compounds; Temperature distribution; Testing; Titanium compounds; Critical current density; NbTi strand; temperature;

fLanguage

English

Journal_Title

Applied Superconductivity, IEEE Transactions on

Publisher

ieee

ISSN

1051-8223

Type

jour

DOI

10.1109/TASC.2007.899359

Filename

4278161