ELONGATE SUPERCONDUCTOR ELEMENTS COMPRISING OXIDE SUPERCONDUCTORS, SUPERCONDUCTING COILS AND METHODS OF MAKING SUCH ELEMENTS

摘要

An elongate superconductor wiring element having, as seen in section, oxide superconductor material region (1) in each of which the c-axes of the oxide superconductor crystals are aligned with each other and are transverse to the longitudinal axis of the element. To reduce the dependence of critical current density on angular position of the element relative to a magnetic field, there are a plurality of said regions (1) whose alignment directions (3) of the c-axes are different as between different ones of said regions, so that the wiring element comprises a plurality of said regions having respectively different c-axis alignment directions.