High-Tc oxide superconductor and method for producing the same

Details High-Tc oxide superconductor and method for producing the same High-Tc oxide superconductor and method for producing the same

1992-06-29

1994-05-31

Bell, Mark L.

Superconductor technology: apparatus, material, process

High temperature , per se

Bismuth containing

505782, 501153, 501123, 501126, 501127, 252521, C04B 3500, H01B 1206, H01L 3912

Patent

active

053170075

ABSTRACT:
A high-Tc oxide superconductor including Bi, Sr, Ca, Cu, O and at least one of Pb and Al, with a high critical temperature than that of liquid nitrogen. A method for producing the high-Tx oxide superconductor is also disclosed, in which Bi.sub.2 O.sub.3, SrCO.sub.3, CaCO.sub.3, CuO and PbO or Al.sub.2 O.sub.3 powders are mixed, calcined, ground, cold-pressed and sintered. The calcined mixture may be melted and annealed to obtain a tape-form superconductor.

REFERENCES:
patent: 4880771 (1989-11-01), Cava et al.

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