High critical current YBCO coated conductors based on IBAD MgO

• Published in: Physica. C, Superconductivity Vol. 412; pp. 795 - 800
• Main Authors: Arendt, P.N., Foltyn, S.R., Civale, L., DePaula, R.F., Dowden, P.C., Groves, J.R., Holesinger, T.G., Jia, Q.X., Kreiskott, S., Stan, L., Usov, I., Wang, H., Coulter, J.Y.
• Format: Journal Article
• Language: English
• Published: Elsevier B.V 01.10.2004
• Subjects: Biaxial texture; Ion-beam assisted deposition; YBCO coated conductor; 74.80.B; YBCO coated conductor; 74.72.B; 81.15.−z; Ion-beam assisted deposition; Biaxial texture
• ISSN: 0921-4534; 1873-2143
• DOI: 10.1016/j.physc.2003.12.074

This report describes recent developments of second-generation Y 1Ba 2Cu 3O 7− δ (YBCO) coated conductors deposited on biaxially textured MgO templates. The materials system architecture implemented to achieve high critical currents in YBCO films is described. The average full-width at half maximum (FWHM) in-plane texture obtained for MgO films processed on meter-length tapes is 7°, while that for the YBCO films is 3°. The best YBCO in-plane values approach 2° and the out-of-plane values approach 1°. Critical currents (1 cm wide tapes, 75 K, self field) have attained 423 A for 7 cm length and 233 A for 50 cm length tapes.