Improved Critical Current Density In Di-Bscco
9TH EUROPEAN CONFERENCE ON APPLIED SUPERCONDUCTIVITY (EUCAS 09)(2010)
Abstract
High I-c in DI-BSCCO has been demonstrated even in high temperature up to 90K and parallel magnetic field up to 200 mT. This performance is advantageous especially to power cables cooled with pressurized liquid nitrogen, where current and temperature fluctuates in real operation. Recent development has updated the highest J(c) at 77K, self-field to 630 A/mm(2) in a R&D tape. The evaluation by a scanning magnetic microscope has demonstrated the highest J(c) of 900 A/mm(2) at the midst of a tape which has I-c of 200 A. This property promises innovative I-c more than 300 A in future DI-BSCCO.
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Key words
liquid nitrogen,magnetic field
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