Abstract
The temperature rise during the field cooling (FC) magnetizing process with various sweep rates by using a 10 T superconducting solenoid magnet was systematically evaluated with respect to an YBCO single domain trapped-field magnet cooled to 57-75 K by a GM refrigerator. The maximum temperature change has reached 6 K when the sweep rate was -11.3 mT/s and initial temperature of 57 K. The recent elevation of the sweep rate of superconducting magnet and the critical current density of bulk samples have made the heat generation serious even in the FC operation by quasi-static magnetic field.
| Original language | English |
|---|---|
| Pages (from-to) | 794-799 |
| Number of pages | 6 |
| Journal | Physica C: Superconductivity and its applications |
| Volume | 426-431 |
| Issue number | I |
| DOIs | |
| Publication status | Published - 2005 Oct 1 |
| Event | Proceedings of the 17th International Symposium on Superconductivity (ISS 2004) Advances in Supeconductivity - Duration: 2004 Nov 23 → 2004 Nov 25 |
Keywords
- Bulk superconductor
- Field cooling
- Melt-process
- Trapped field magnet
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
Oka, T., Yokoyama, K., Fujishiro, H., Kaneyama, M., & Noto, K. (2005). Temperature changes in a melt-processed YBCO superconductor activated by field cooling magnetizing process. Physica C: Superconductivity and its applications, 426-431(I), 794-799. https://doi.org/10.1016/j.physc.2005.01.085