• ISSN 0258-2724
  • CN 51-1277/U
  • EI Compendex
  • Scopus
  • Indexed by Core Journals of China, Chinese S&T Journal Citation Reports
  • Chinese S&T Journal Citation Reports
  • Chinese Science Citation Database
Volume 30 Issue 3
Jun.  2017
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Article Contents
ZHU Xiaolei, PU Minghua, ZHANG Hong, ZHAO Yong. High-Efficient Preparation of SmBiO3 Buffer Layer for Superconducting Coated Conductors[J]. Journal of Southwest Jiaotong University, 2017, 30(3): 633-638. doi: 10.3969/j.issn.0258-2724.2017.03.027
Citation: ZHU Xiaolei, PU Minghua, ZHANG Hong, ZHAO Yong. High-Efficient Preparation of SmBiO3 Buffer Layer for Superconducting Coated Conductors[J]. Journal of Southwest Jiaotong University, 2017, 30(3): 633-638. doi: 10.3969/j.issn.0258-2724.2017.03.027

High-Efficient Preparation of SmBiO3 Buffer Layer for Superconducting Coated Conductors

doi: 10.3969/j.issn.0258-2724.2017.03.027
  • Received Date: 16 May 2016
  • Publish Date: 25 Jun 2017
  • In order to shorten the preparation period of buffer layer for high-performance coated conductors, SmBiO3 (SBO) buffer films were efficiently deposited on surface-oxidation epitaxy processed NiO(100)/NiW substrates by chemical solution deposition (CSD) method, using a precursor solution prepared by dissolving samarium nitrate and bismuth nitrate precursors in lactic acid. The effect of sintering temperature on the SBO film was systematically studied. Then, the YBa2Cu3O7- (YBCO) superconductive film was deposited on the SBO buffer layer to test its utility. Results show that a highly textured, smooth and dense SBO thin film was obtained at 798.5 ℃, and the SBO thin film could be prepared within a period of less than 2 h. The YBCO superconductive layer was successfully deposited on the SBO layer with a superconducting transition temperature of 89 K and a critical current density of 1.46 MA/cm2 (77 K, 0 T), which could be used in some electric power applications. Therefore, the proposed method for preparing SBO buffer layer can be used for rapid preparation of coated conductors.

     

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