Abstract
High-performance YBa2Cu3O7−z (YBCO) super conducting films have been prepared on single-crystal substrate by fluorine-free polymer-assisted metal organic deposition (PA-MOD) method. The introduction of polymers into the precursor solution can make the coating solution more homogeneous and stable. And, the novel high temperature partial melting process can enhance the epitaxial growth of the precursor films. The influence of partial melting time on the texture, microstructure, and properties was thoroughly investigated. The results indicate YBCO film melting for 5 min has biaxial texture, smooth and dense microstructures, as well as high critical current density (77 K, 0 T) over 3 MA/cm2.
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Acknowledgments
The authors are grateful for the financial support of the National Science Foundation of China under Grant Nos. 51102199, 51271155, 51377138, and 51202202; the National Magnetic Confinement Fusion Science Program under Grant Nos. 2011GB112001 and 2013GB110001; the Program of International S&T Cooperation under Grant No. 2013DFA51050; and the 863 Program under Grant No. 2014AA032701.
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Wang, W.T., Wang, Z., Pu, M.H. et al. A Novel Partial Melting Process for YBa2Cu3O7−z Superconducting Films by Fluorine-Free Polymer-Assisted Metal Organic Deposition Approach. J Supercond Nov Magn 28, 3249–3253 (2015). https://doi.org/10.1007/s10948-015-3164-9
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DOI: https://doi.org/10.1007/s10948-015-3164-9