Processing and Properties of Bar-Shaped Single-Seeded and Multi-Seeded YBCO Bulk Superconductors by a Top-Seeded Melt Growth Technique
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Authors
Almalki, A
Ba-Abbad, M
Almutairi, AA
Publication Date
2016-12-30Journal Title
Journal of Superconductivity and Novel Magnetism
ISSN
1557-1939
Publisher
Springer
Pages
1-7
Type
Article
This Version
VoR
Metadata
Show full item recordCitation
Almalki, A., Namburi, D., Ba-Abbad, M., Dennis, T., Huang, D., Almutairi, A., Durrell, J., & et al. (2016). Processing and Properties of Bar-Shaped Single-Seeded and Multi-Seeded YBCO Bulk Superconductors by a Top-Seeded Melt Growth Technique. Journal of Superconductivity and Novel Magnetism, 1-7. https://doi.org/10.1007/s10948-016-3944-x
Abstract
© 2016 The Author(s)The fabrication of (RE)-Ba-Cu-O bulk superconductors, where RE is a rare-earth element such as Y, Gd and Sm, is both time consuming and expensive due to the complexity of the melt process and the slow growth rate of large, single grains. In this study, different approaches to the fabrication of bar-shaped, bulk YBCO superconductors are investigated and compared using single- and multiple-seeding techniques via top-seeded melt growth (TSMG). Both the microstructural and superconducting properties of the bulk samples are investigated, including trapped field, critical current density, critical temperature and levitation force. The results of this study indicate that, in general, the superconducting properties of YBCO fabricated by a single-seeded process are significantly better than those of samples fabricated by a four-seeded process for non-bridge seeds. The differences between the samples are less pronounced in the levitation force measurements, however. In this paper, we attempt to explain the reasons for the similarities and differences observed between bulk samples fabricated by the different single- and multi-seeded processes.
Relationships
Is supplemented by: https://doi.org/10.17863/CAM.6785
Sponsorship
This work was supported by the King Abdulaziz City for Science and Technology (KACST).
Funder references
King Abdulaziz City for Science and Technology (KACST) (unknown)
King Abdulaziz City for Science and Technology (KACST) (unknown)
Identifiers
External DOI: https://doi.org/10.1007/s10948-016-3944-x
This record's URL: https://www.repository.cam.ac.uk/handle/1810/261982
Rights
Attribution 4.0 International, Attribution 4.0 International, Attribution 4.0 International