Fabrication of low cost YBCO coated conductors using Ag-clad Hastelloy substrates
✍ Scribed by Yanwei Ma; Kazuo Watanabe; Satoshi Awaji; Mitsuhiro Motokawa
- Publisher
- Elsevier Science
- Year
- 2002
- Tongue
- English
- Weight
- 266 KB
- Volume
- 42
- Category
- Article
- ISSN
- 0011-2275
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✦ Synopsis
Mechanically reinforced Ag-clad Hastelloy tapes were fabricated as the inexpensive substrates for coated conductors without any buffer layer. The clad substrate has good adhesion between Ag and Hastelloy layers. Superconducting YBa 2 Cu 3 O 7 (YBCO) films were directly deposited on Ag-clad Hastelloy substrates by chemical vapor deposition in high magnetic fields. YBCO films were highly oriented along the c-axis perpendicular to the substrate with a zero resistance transition temperature of 86.2 K and a transport J c value of 10 4 A/cm 2 at 77 K and zero magnetic field. These results indicate that the present work appears to be a promising way for the development of YBCO films for large-scale applications.