Title :
Suitability of MgB2 tapes with iron sheaths for multiturn superconducting coils
Author :
Sivasubramaniam, K. ; Laskaris, E.T. ; Ryan, D.
Author_Institution :
Appl. Magnetics Lab., Schenectady, NY, USA
fDate :
6/1/2003 12:00:00 AM
Abstract :
This paper investigates the suitability of MgB2 tapes clad in a high magnetic permeability iron sheath for use in practical multi-turn superconducting coils. The flux-density in the MgB2 portion of a single filamentary tape under various configurations is analyzed and its effect on the critical current capability is evaluated. The magnetic field is computed numerically using the finite element (FE) method. The FE model used for the analysis is described along with the assumptions made. The results indicate that the iron-clad MgB2 tapes are undesirable for SC coils in many practical applications from a steady state performance stand point.
Keywords :
critical currents; finite element analysis; high-temperature superconductors; iron; magnesium compounds; magnetic flux; magnetic permeability; superconducting coils; superconducting tapes; MgB2 tape; MgB2-Fe; critical current; finite element method; iron sheath; magnetic field; magnetic flux density; magnetic permeability; multiturn superconducting coil; single filamentary tape; Conducting materials; Critical current; Critical current density; Iron; Magnetic analysis; Superconducting coils; Superconducting films; Superconducting magnets; Superconducting materials; Wires;
Journal_Title :
Applied Superconductivity, IEEE Transactions on
DOI :
10.1109/TASC.2003.812224
