Melt Textured Ybacuo Transport Current Capability. Application To Current Limitation

Pulsed and permanent sinusoidal transport current have been applied to melt textured Y1Ba2Cu3O7-delta in order to estimate its current limitation capability. High pulsed transport currents reaching 9000 A (23 000 A/cm(2)) crossed a 4 cm long sample. In permanent sinusoidal current, 3000 A (7800 A/cm(2)) crossed the sample without showing any resistive losses. Above the critical current, the transition from the superconducting to the normal state is strongly abrupt.