Title :
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
fDate :
6/1/2007 12:00:00 AM
Abstract :
In the framework of the characterization of NbTi strands manufactured by Bochvar Institute for the ITER insert coil the representative database of Jc(B,T) and E(T) was obtained. Measurements of Jc(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 (Tcs) test for ITER PF coil. The Tcs 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;
Journal_Title :
Applied Superconductivity, IEEE Transactions on
DOI :
10.1109/TASC.2007.899359
