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OwnerJochen Dieter Mannhart, Hartmut Ulrich Bielefeldt +5inventors
InventorsJochen Dieter Mannhart, Hartmut Ulrich Bielefeldt, Barbel Martha Gotz, Johannes Wilhelmus Maria Hilgenkamp, Andreas Fritz Albert Schmehl, Christof Walter Schneider, Robert Ralf Schulz
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The present invention concerns an enhancement of the supercurrent carrying capabilities of bicrystalline or polycrystalline high-Tc superconductors, i.e. the critical current densities in such superconductors. The current transport properties are improved by chemically altering, especially doping, the superconductors. It seems that a modification of the space-charge layers at the boundary, e.g. by an increase of the mobile charge carrier concentrations particularly in the superconductor's grain boundaries, which concentrations differ from those resulting in optimum superconducting properties of the grains, are responsible for this positive effect.
Method for making a long superconductor with a high critical current density from a bicrystalline or polycrystalline superconductor of the family of the high-Tc cuprates, characterized by
A bicristalline or polycrystalline long superconductor, e.g. a superconducting tape or wire, with high critical current density of the family of the high-Tc cuprates, characterized by
Method for making a long superconductor with a high critical current density from a bicrystalline or polycrystalline superconductor of the family of the high-Tc cuprates, characterized by
A bicristalline or polycrystalline long superconductor, e.g. a superconducting tape or wire, with high critical current density of the family of the high-Tc cuprates, characterized by
Dependencies are inferred from the claim text.