Rare-earth-Ba-Cu-O superconductors and methods of making same

Details Rare-earth-Ba-Cu-O superconductors and methods of making same Rare-earth-Ba-Cu-O superconductors and methods of making same

2007-10-23

2007-10-23

Enad, Elvin G. (Department: 2832)

Electricity: magnetically operated switches, magnets, and electr

Magnets and electromagnets

Superconductive type

C335S296000

Reexamination Certificate

active

10616719

ABSTRACT:
Rare-earth-Ba-Cu-O superconductors having improved critical current density are described, as are methods of making same. These superconductors comprise a drop in Jcof less than a factor of about 7 at a temperature of between about 30K to about 77K, and at a magnetic field of about 1 Tesla, when the magnetic field is applied normal to the surface of the superconductor, as compared to a Jcin the presence of no magnetic field. These superconductors, when a magnetic field is applied perpendicular to the HTS surface have a peak Jcthat is about 50-90%, and when a magnetic field is applied in any orientation with respect to the HTS surface have a Jcvalue that is at least about 50%, of the peak Jc that exists when the magnetic field is applied parallel to the surface of the superconductor.

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