Title :
Multifilament BPSCCO superconductor: fabrication and heat treatment study
Author :
Motowidlo, L.R. ; Haldar, P. ; Jin, S. ; Spencer, N.D.
Author_Institution :
IGC Adv. Superconductors Inc., Waterbury, CT, USA
fDate :
3/1/1993 12:00:00 AM
Abstract :
The fabrication of long lengths of multifilament antimony-doped BPSCCO (Bi/sub 1.6/Pb/sub 0.3/Sb/sub 0.1/Sr/sub 2/ Ca/sub 2/Cu/sub 3/O/sub x/) wire or tape by conventional processing methods is reported. A combination of intermediate heat treatment followed by rolling and final anneals is utilized to obtain textured filaments in a silver matrix. The addition of antimony has been found to improve the irreversibility line as compared to the undoped samples, which may be useful for obtaining improved performance in BPSCCO wires.<>
Keywords :
annealing; antimony compounds; bismuth compounds; calcium compounds; composite superconductors; high-temperature superconductors; lead compounds; materials preparation; rolling; silver; strontium compounds; Bi/sub 1.6/Pb/sub 0.3/Sb/sub 0.1/Sr/sub 2/Ca/sub 2/Cu/sub 3/O/sub x/-Ag; annealing; fabrication; high temperature superconductivity; intermediate heat treatment; irreversibility line; multifilament tape; multifilament wire; rolling; textured filaments; Conducting materials; Fabrication; Heat treatment; High temperature superconductors; Magnetic materials; Multifilamentary superconductors; Silver; Superconducting films; Superconducting magnets; Superconducting materials;
Journal_Title :
Applied Superconductivity, IEEE Transactions on
