Abstract
We studied the possibility to construct a mechanical persistent current switch using a pair of bulk YBCO superconductors with resin-impregnation. Supercurrents could not be passed between two YBCO bulks when the currents were passed along the c-axis. In contrast, supercurrents as large as 13.5 A could be successfully passed between two YBCO cubes 8 mm in side length at the compression force of 500 N when the currents were passed along the ab-axis. The contact surfaces were observed by scanning electron microscopy after the transport measurements at 500 N load. The damage was observed on the (0 0 1) contact surface, while no damage was present on the (1 0 0) surface, reflecting superior contact characteristics.
| Original language | English |
|---|---|
| Pages (from-to) | 864-868 |
| Number of pages | 5 |
| Journal | Physica C: Superconductivity and its applications |
| Volume | 378-381 |
| Issue number | PART 1 |
| DOIs | |
| Publication status | Published - 2002 Oct 1 |
| Externally published | Yes |
Keywords
- Bulk superconductor
- Epoxy resin
- Mechanical strength
- Persistent current switch
- YBCO
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics
- Energy Engineering and Power Technology
- Electrical and Electronic Engineering
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Cite this
Tomita, M., Murakami, M., Nariki, S., & Sawa, K. (2002). Mechanical persistent current switch made of RE-Ba-Cu-O bulk with resin impregnation. Physica C: Superconductivity and its applications, 378-381(PART 1), 864-868. https://doi.org/10.1016/S0921-4534(02)01814-2