Abstract
The effect of Ag addition on the field trapping properties of Gd-Ba-Cu-O bulk samples has been studied. Gd-Ba-Cu-O bulk superconductors 32 mm in diameter were melt textured by varying the amount of Ag2O in the range of 0-30 wt.%. The trapped magnetic field of Ag-free bulk sample was 1.3 T at 77 K. This value could be improved to 1.8-2.0 T with Ag addition of 10-20 wt.%. A further increase in Ag2O content degraded the field trapping ability. Ag-free bulk Gd-Ba-Cu-O exhibited the trapped field of 3.0 T at 65 K, however, the bulk was fractured at lower temperature. On the other hand, Ag-added bulk Gd-Ba-Cu-O exhibited the high trapped field value of 6.7 T at 55 K. These results indicate that the mechanical strength of the bulk Gd-Ba-Cu-O could be improved with Ag addition.
| Original language | English |
|---|---|
| Pages (from-to) | 774-778 |
| 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
- Ag
- Gd-Ba-Cu-O
- Mechanical property
- Melt processing
- Trapped magnetic field
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics
- Energy Engineering and Power Technology
- Electrical and Electronic Engineering