Reel-to-reel fabrication of meter-long YBCO coated conductor |
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Authors: | J Yang H Zhang SM Wang CG Lin DQ Shi SX Dou |
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Institution: | 1. General Research Institute for Non-ferrous Metals, Beijing 100088, China;2. University of Wollongong, Wollongong, NSW 2522, Australia |
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Abstract: | YBa2Cu3O7?δ (YBCO) superconductors were coated on the CeO2/YSZ/Y2O3 buffered Ni-5at%W tapes by a reel-to-reel pulsed laser deposition (PLD). The process of a multi-layer deposition of YBCO film was explored. X-ray diffraction texture measurements showed good both in-plane and out of plane crystalline orientations in YBCO films. The average values calculated at a full width at half maximum (FWHM) of the peaks from phi-scans (φ) and omega (ω) scans for one meter-long YBCO tape were 7.49° and 4.71°, respectively. The critical current (Ic) was over 200 A/cm-width at 77 K and under self-field for meter-long YBCO tape. The critical transition temperature of the YBCO tape was typically as 90.1 K with 0.5 K transition widths. |
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