Title :
Preparation of Y-Ba-Cu-O superconducting tape by pyrolysis of organic acid salts
Author :
Amemiya, Isao ; Kobayasi, Hiroki ; Nakamoto, Takao ; Hasegawa, Takayo
Author_Institution :
Showa Electr. Wire & Cable Co. Ltd., Kawasaki, Japan
fDate :
3/1/1991 12:00:00 AM
Abstract :
A Y-Ba-Cu-O superconducting tape of 124 phase was successfully synthesized at atmospheric pressure by pyrolysis of organic acid salts. Tc(on)=80 K and Tc(end)=70 K were obtained along with a Jc of 2×104 A/cm2 at 4.2 K and 0 T. An addition of calcium was found to elevate the Tc and improve the compactness of the film. The Jc of this sample is 3.2×10 4 A/cm2 at 4.2 K and 0 T. The Jc -B characteristic is better than that of the 124 phase without substitution
Keywords :
barium compounds; critical current density (superconductivity); high-temperature superconductors; materials preparation; pyrolysis; superconducting transition temperature; yttrium compounds; Y-Ba-Cu-O superconducting tape; high temperature superconductor; organic acid salts; pyrolysis; Heat treatment; High temperature superconductors; Manufacturing processes; Silver; Solvents; Superconducting cables; Superconducting films; Superconducting materials; X-ray diffraction; Yttrium barium copper oxide;
Journal_Title :
Magnetics, IEEE Transactions on
