A Low-Cost Fabrication Technique for the Growth of Single-Domain GdBCO Bulk Superconductor from Raw Metal Oxides

  • Miao Wang
  • Jun Ma
  • Xiaomei Wang
  • Chengxi Hu
  • Wanmin Yang
Original Paper


A single-domain GdBCO bulk superconductor is usually fabricated using a mixture of pre-reacted precursor powders (including GdBa2Cu3O7−δ and Gd2BaCuO5) by the top-seeded melt texture growth (TSMTG) process. However, the synthesis of pure-phase precursor powder by the solid-state sintering reaction can not only consume time for weeks but also prolong the fabrication process and can lead to a low-efficiency and high-cost process. In this paper, we reported the successful growth of single-domain GdBCO bulk superconductors by the top-seeded metallic oxide melt growth (TS-MOMG) process in which the raw materials of Gd2O3, BaO, and CuO, the three different metallic oxides, are just involved to fabricate the single-domain GdBCO bulk superconductors. After detailed investigations in the morphology, levitation force, trapped magnetic field, and critical temperature of the grown samples with different ratios, it was found that the simplified precursor-phase source can be used to fabricate the single-domain GdBCO bulk superconductors more efficiently, which can combine the crystal growth procedure and greatly economize the preparation cost and the time to the most extent.


Low cost Single-domain GdBCO bulk superconductors TS-MOMG Raw metal oxides 


Funding Information

This work was supported by the National Natural Science Foundation of China (Grant Nos. 11647050 and 51572164) and the Natural Science Foundation of Qinghai Province (No. 2016-ZJ-915).


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Authors and Affiliations

  1. 1.School of ScienceXi’an Aeronautical UniversityXi’anChina
  2. 2.School of Physics and Electronic Information EngineeringQinghai Normal UniversityXiningChina
  3. 3.School of Physics and Information TechnologyShaanxi Normal UniversityXi’anChina

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