Abstract
The effects of radial temperature gradient on the macrostructure and properties of MTG bulk YBCO superconductor have been investigated. The results indicate that a positive radial temperature gradient is favourable for depressing the nucleation number of YBCO bulk superconductors during the MTG process. Samples fabricated in this way is composed of a few large fan-shaped YBCO Superconducting crystal domains, and its magnetic levitation force is higher. On the contrary, a negative radial temperature gradient is favourable for randomly nucleation, and produces a sample with many small crystal domains randomly oriented. The magnetic levitation force of the sample is lower.
| Original language | English |
|---|---|
| Pages (from-to) | 33 |
| Number of pages | 1 |
| Journal | Xiyou Jinshu Cailiao Yu Gongcheng/Rare Metal Materials and Engineering |
| Volume | 25 |
| Issue number | 4 |
| State | Published - 1996 |
| Externally published | Yes |
Keywords
- Large bulk YBCO superconductor
- MTG
- Property
- Radial temperature gradient