Title :
Analysis of AC loss behavior in BSCCO tapes with different core geometries
Author :
Mele, R. ; Crotti, G. ; Gherardi, L. ; Morin, D. ; Bigoni, L. ; Martini, L. ; Zannella, S.
Author_Institution :
Pirelli Cavi Spa, Milano, Italy
fDate :
6/1/1997 12:00:00 AM
Abstract :
AC losses in the transport regime were measured in Ag-sheathed (Bi,Pb)/sub 2/Sr/sub 2/Ca/sub 2/Cu/sub 3/O/sub x/ (Ag/2223) tapes at 77 K in the frequency range 35-180 Hz. The samples were multifilamentary, prepared by OPIT (oxide powder in tube) technique, and "concentric" prepared by the wire-in-tube technique, and they had different superconducting core geometries. Measured losses were confirmed to be hysteretic in nature in the examined frequency range. The experimental results are compared with the prediction of the elliptical and thin strip Norris model.
Keywords :
bismuth compounds; calcium compounds; critical current density (superconductivity); high-temperature superconductors; magnetic hysteresis; magnetic leakage; powder technology; silver; strontium compounds; 35 to 180 Hz; 77 K; AC loss behavior; Ag-sheathed (Bi,Pb)/sub 2/Sr/sub 2/Ca/sub 2/Cu/sub 3/O/sub x/; BSCCO tapes; Bi/sub 2/Sr/sub 2/Ca/sub 2/Cu/sub 3/O/sub 10/-Ag; core geometries; elliptical model; high temperature superconductor; multifilamentary; oxide powder in tube technique; thin strip Norris model; Bismuth compounds; Frequency measurement; Geometry; Hysteresis; Loss measurement; Multifilamentary superconductors; Powders; Strontium; Superconducting filaments and wires; Superconducting films;
Journal_Title :
Applied Superconductivity, IEEE Transactions on
