Title :
Thermal cycling and critical current density of BSCCO/Ag-sheathed wire and tape
Author :
Hilton, D.K. ; Hascicek, Y.S.
Author_Institution :
Nat. High Magnetic Field Lab., Florida State Univ., Tallahassee, FL, USA
Abstract :
The effect of thermal cycling between 4.3 K and 298 K within a He atmosphere, and ambient magnetic field, on the J/sub c/ of a Bi-2223/Ag-sheathed monocore tape and two Bi-2212/Ag-sheathed multifilament wire straight samples was studied. The J/sub c/ of the tape and wire samples did not degrade as a result of thermal cycling. There was also no degradation of J/sub c/ of these samples by thermal cycling between 77.4 K and 298 K by immersion in LN/sub 2/ within air.<>
Keywords :
bismuth compounds; calcium compounds; critical current density (superconductivity); heat treatment; high-temperature superconductors; multifilamentary superconductors; silver; strontium compounds; superconducting tapes; 4.3 to 298 K; BSCCO/Ag-sheathed monocore tape; BSCCO/Ag-sheathed multifilament wire; Bi/sub 2/Sr/sub 2/Ca/sub 2/Cu/sub 3/O/sub 10/-Ag; Bi/sub 2/Sr/sub 2/CaCu/sub 2/O/sub 8/-Ag; ambient magnetic field; critical current density; liquid N/sub 2/ immersion; thermal cycling; Atmosphere; Bismuth compounds; Critical current density; High temperature superconductors; Magnetic field measurement; Magnetic fields; Superconducting magnets; Thermal degradation; Wire;
Journal_Title :
Applied Superconductivity, IEEE Transactions on
