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HomeMaterials Science ForumMaterials Science Forum Vols. 546-549A New Series of Potential Buffer Layers for REBCO...

A New Series of Potential Buffer Layers for REBCO Coated Conductor

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Abstract:

A new series of ReBiO3 (RBO, Re=Y, Sm or other lanthanide) layers have been prepared on single crystal LaAlO3 or SrTiO3 respectively by a low-cost chemical solution deposition (CSD) method, and their structures have been investigated. With deferent Re element, the ReBiO3 phase has a similar cubic lattice with the pseudo-cubic lattice parameter a’ of about 3.81~3.94Å, which is closely matched to that of the ReBa2Cu3Ox (RBCO). In addition, these ReBiO3 phase are stable when they are sintered on 750~1050°C. After annealed below 850°C in air, highly c-axis oriented ReBiO3 layers can be formed on the (100) plane of single crystal LaAlO3 or SrTiO3. Observed under SEM, these layers appear very dense, smooth, pinhole-free and crack-free morphology. With the matched lattice parameter, lower annealing temperature, good grain-orientation and smooth surface, ReBiO3 layers should be candidates for the buffer layers of RBCO coated conductor. As a proof, a superconducting layer of YBCO has been deposited also by a CSD approach on one of these layers and show good texture and expected superconductivity.

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Periodical:

Materials Science Forum (Volumes 546-549)

Pages:

1881-1886

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.546-549.1881

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Online since:

May 2007

Authors:

Ming Hua Pu, Guo Li, Xiao Hua Du, Yan Bing Zhang, Hua Ming Zhou, Rui Ping Sun, Zu Qiang Wang, Yong Zhao

Keywords:

Buffer Layer, Chemical Solution Deposition, Coated Conductor, ReBiO₃

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© 2007 Trans Tech Publications Ltd. All Rights Reserved

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