Superconducting layer thickness of relaxation properties of persistent current in high magnetic field in YBCO-coated conductor
โ Scribed by F. Matsutani; K. Himeki; M. Kiuchi; E.S. Otabe; T. Matsushita; S. Miyata; A. Ibi; Y. Yamada; Y. Shiohara
- Publisher
- Elsevier Science
- Year
- 2009
- Tongue
- English
- Weight
- 346 KB
- Volume
- 469
- Category
- Article
- ISSN
- 0921-4534
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The YBCO layer of coated conductors is usually covered by a protective layer of metal such as silver. From the viewpoint of stability and quench protection, a thicker protective layer is preferable, but an increase in the thickness of the protective layer might result in an increase in the AC loss.
We fabricated long length YBCO single domain superconducting rods of 150 mm in length by the unidirectional solidification method. From the observation of microstructures of the rod, it was confirmed that the volume fraction and size of Y211 phase crystals tend to increase with progress of unidirect