Reel-to-Reel Processing of Buffer Layers and YBCO on Textured Substrate

Abstract:

High Tc superconducting tapes based on YBCO Coated Conductor have been extensively studied to develop the processing techniques for application. In this paper, two self-designed reel-to-reel deposition systems (Sputtering and PLD) were installed. Continuous deposition of multi-layer CeO2/YSZ/Y2O3 buffer layers were carried out on biaxially textured NiW substrate using reactive sputtering. YBCO films were coated on the CeO2/YSZ/Y2O3 buffered NiW substrate by continuous PLD subsequently. To achieve high current carrying capacities, combinations of various deposition conditions were explored. X-ray diffraction measurements show good in-plane and out-plane texture in buffer layers and YBCO films. The transition temperature of the YBCO was 89 K and the critical current is over 50 A at 77 K in 1 meter long YBCO tapes.

• Periodical: Advanced Materials Research (Volume 569)
• Pages: 62-69
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.569.62
• Online since: September 2012
• Authors: Hui Zhou Liu, Jian Yang, Hua Zhang
• Keywords: Buffer Layer, PLD, Reel-to-Reel, Sputtering, YBCO

References

[1] S. Fleshler, D. Buczek, B. Carter, et al., Physica C 469 (2009), p.1316.

[2] D. Dimos, P. Chaudhari, J. Mannhart, Phys. Rev. B 41 (1990), p.4038.

[3] D.P. Norton, A. Goyal, J.D. Budai, et al., Science 274 (1996), p.755.

[4] R.I. Chakalova, C. Cai, T. Woodcock, et al., Physica C 372–376 (2002), p.846.

[5] M. Paranthaman, C. Park, X. Cui, et al., J. Mater. Res. 15 (2000), p.2647.

[6] R. Huhne, S.V. Subramanya, D. Okai, et al., Supercond. Sci. Technol. 20 (2007), p.709.

[7] H.S. Kim, C. Park, R.K. Ko, et al., Physica C 426–431 (2005), p.926.

[8] H.S. Kim, K.C. Chung, B.S. Lee, et al., Supercond. Sci. Technol. 17 (2004), p.291.

[9] J. Xiong, Y. Chen, Q. Yang, et al., Physica C 454(2007), p.56.