Title :
Superconducting joint of reacted Bi-2223/Ag multi-filamentary tapes
Author :
Oh, Sang-Soo ; Ha, Hong-Soo ; Kim, Sang-Chul ; Ha, Dong-Woo ; Kwon, Young-Kil ; Ryu, Kang-Sik ; Joo, Jinho
Author_Institution :
Korea Electrotechnol. Res. Inst., Changwon, South Korea
fDate :
3/1/2001 12:00:00 AM
Abstract :
Fabrication of superconducting joints has been attempted for reacted Bi-2223/Ag multi-filamentary tapes changing the scheme of joint shape. Bi-2223 filaments were directly overlapped and pressed onto each other by uni-axial pressing. Degradation of critical current occurred for the jointed sample and that tendency depended on the joint schemes and applied pressure. Critical current retention of 57% could be obtained by an optimized jointed sample after heat-treatment
Keywords :
bismuth compounds; calcium compounds; critical currents; high-temperature superconductors; lead compounds; materials preparation; multifilamentary superconductors; silver; strontium compounds; Ag; BiPbSrCaCuO; HTSC; applied pressure; critical current; fabrication; filament sausaging; heat-treatment; joint shape; optimized jointed sample; reacted Bi-2223/Ag multi-filamentary tapes; superconducting joint; uni-axial pressing; Critical current; Fabrication; High temperature superconductors; Multifilamentary superconductors; Pressing; Silver; Superconducting coils; Superconducting filaments and wires; Superconducting films; Superconducting magnets;
Journal_Title :
Applied Superconductivity, IEEE Transactions on
