Title :
The manufacturing process and properties of the high Tc oxide superconducting wire
Author :
Kawashima, M. ; Nagata, M. ; Hosoda, Y. ; Takano, S. ; Shibuta, N. ; Mukai, H. ; Hikata, T.
Author_Institution :
Sumitomo Electr. Ind. Ltd., Osaka, Japan
fDate :
3/1/1989 12:00:00 AM
Abstract :
The critical-current densities (Jc) of Ag-sheathed tapes of oxide superconductors were investigated using both the yttrium and bismuth systems. Using a press process for Y1Ba2Cu3O7-x, BiSrCaCu2 Ox, and Bi0.8Pb0.2SrCaCu2 Ox, increases in Jc were inconsistently observed. Jc showed an increase for Y 1Ba2Cu3O7-x but not for BiSrCaCu2Ox. The Bi0.8Pb0.2SrCaCu2Ox superconductor also showed increased Jc. The press processing improved the superconducting properties of Ag-sheathed wire not only for Jc but also for Tc. The authors obtained high Tc phase Tc(R=zero)=104 K and Jc=1850 A/cm2 for Bi0.8Pb0.2SrCaCu2O x superconductor
Keywords :
barium compounds; bismuth compounds; calcium compounds; critical current density (superconductivity); high-temperature superconductors; materials preparation; strontium compounds; yttrium compounds; Ag-sheathed tapes; Bi0.8Pb0.2SrCaCu2Ox; BiSrCaCu2Ox; Y1Ba2Cu3O7-x; critical-current densities; high temperature superconductors; press processing; superconducting wire; wire; Bismuth; Conducting materials; Critical current density; Manufacturing processes; Powders; Silver; Superconducting filaments and wires; Superconducting magnets; Superconducting materials; Superconductivity;
Journal_Title :
Magnetics, IEEE Transactions on
