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Fabrication and Characterization of Superconducting Resonators
Published on: May 21, 2016
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Superconducting YBCO Foams as Trapped Field Magnets.
Michael R Koblischka1, Sugali Pavan Kumar Naik2, Anjela Koblischka-Veneva3
1Superconducting Materials Laboratory, Department of Materials Science and Engineering, Shibaura Institute of Technology, Tokyo 135-8548, Japan. m.koblischka@gmail.com.
Materials (Basel, Switzerland)
|March 16, 2019
Summary
Superconducting Yttrium Barium Copper Oxide (YBCO) foams demonstrate potential as powerful, lightweight trapped field magnets. These novel materials exhibit promising magnetic field trapping capabilities for advanced applications.
Area of Science:
- Materials Science
- Condensed Matter Physics
- Superconductivity
Background:
- Superconducting foams made from Yttrium Barium Copper Oxide (YBCO) offer a unique combination of properties.
- Their open-porous structure results in lightweight yet mechanically robust materials suitable for large-scale fabrication.
- These properties make them candidates for advanced magnetic applications, including trapped field magnets.
Purpose of the Study:
- To investigate the trapped magnetic field properties of YBCO superconducting foams.
- To assess the feasibility of using these foams as supermagnets.
- To explore potential applications in space, such as flux-pinning docking interfaces and debris collection.
Main Methods:
- Field-cooling of YBCO foam samples in a 0.5 T magnetic field generated by a square Neodymium-Iron-Boron (Nd-Fe-B) permanent magnet.
- Measurement of trapped field distributions using a scanning Hall probe.
- Analysis of current flow and field distribution patterns.
Main Results:
- A maximum trapped field (TF) of approximately 400 Gauss (G) was measured at 77 Kelvin (K) at the bottom of the YBCO foam sample.
- Detailed mapping of the trapped field distribution across various sample surfaces was achieved.
- The study provides insights into the current flow responsible for the trapped magnetic fields.
Conclusions:
- YBCO superconducting foams exhibit significant potential as effective trapped field magnets.
- The measured trapped fields support their consideration for demanding applications.
- Potential space applications, including flux-pinning docking interfaces and portable strong magnets for debris management, are highlighted.
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