Magnetic Levitation Performance of Superconducting Silver‐Added MgB <sub>2</sub> Bulks Obtained by In Situ Spark Plasma Sintering
Bulk MgB 2 disks (20 mm in diameter and 3.8 mm in thickness) added with 0, 1.5, 3.0, 4.5, 6.0, and 9.0 wt% silver are obtained by in situ spark plasma sintering. Samples are characterized by structural, microstructural, magnetic, and magnetic levitation zero‐field‐cooling and field‐cooling measurements. Superconducting transitions are sharp with critical temperatures being in the range of 36.5–37.9 K. The vertical ( F z , ZFC ) and lateral ( F x ) levitation force show maximum values for samples added with 1.5 or 3 wt Ag%. At 20 K they are +17.78 N and 6.37 N, respectively. A maximum for zero field critical current density and pinning force is found for the sample added with 3 wt%. Roughly, as expected, levitation force correlates with zero‐field critical current density, but other details influence this dependance. Results indicate that silver is an effective addition to MgB 2 for enhancement of levitation performance.
Authors
- P. Badica (ORCID: https://orcid.org/0000-0003-3038-2110)
- Sait Barış Güner (ORCID: https://orcid.org/0000-0001-7487-4817)
- M. Muralidhar (ORCID: https://orcid.org/0000-0003-2205-0378)
Institutions
- Recep Tayyip Erdoğan University (TR)
- Shibaura Institute of Technology (JP)
- National Institute of Materials Physics (RO)
- International Superconductivity Technology Center (JP)
Publication Details
- Journal
- Advanced Engineering Materials
- Published
- 2025-09-04
- DOI
- https://doi.org/10.1002/adem.202501616
- Primary Topic
- Superconductivity in MgB2 and Alloys
- Type
- article
- Field-Weighted Citation Impact
- 0.00