COATED CONDUCTOR HIGH TEMPERATURE SUPERCONDUCTOR CARRYING HIGH CRITICAL CURRENT UNDER MAGNETIC FIELD BY INTRINSIC PINNING CENTERS, AND METHODS OF MANUFACTURE OF SAME

摘要

A coated conductor comprises a substrate supporting a ReBCO superconductor adapted to carry current in a superconducting state. The superconductor is characterized in having peaks in critical current (Jc) of at least 0.2 MA/cm2 in a magnetic field of about 1 Tesla when the field is applied normal to the surface of the superconductor and when the field is applied parallel to the surface of the superconductor, and further characterized in that the superconductor includes horizontal defects and columnar defects in a size and an amount sufficient to result in the said critical current response. The conductor is characterized in that the ratio of the height of the peaks in the Jc is in the range from 3:1 with the ratio of the field perpendicular (0 degrees) to the field parallel (+/−90 degrees) to the range from 3:1 with the ratio of the field parallel to the field perpendicular.

主权项

1. A coated conductor comprising:
a substrate, a (Re)BCO superconductor supported by the substrate, the superconductor adapted to carry current in a superconducting state, the superconductor characterized in having a minimum critical current density (Jc) of at least 0.2 MA/cm2 at 77 K in a magnetic field of 1 Tesla when the field is applied at all angles relative to the superconductor, and the ratio of the height of the peaks in the Jc being in the range from 3:1 with the ratio of the field perpendicular (0 degrees) to the field parallel (+/−90 degrees) to the range from 3:1 with the ratio of the field parallel to the field perpendicular, and further characterized in that the superconductor includes horizontal defects and columnar defects in a size and an amount sufficient to result in the said critical current response.