Conductor design issues for oxide superconductors Part 1: criteria of magnetic stability

✍ Scribed by T Ogasawara

• Publisher: Elsevier Science
• Year: 1989
• Tongue: English
• Weight: 304 KB
• Volume: 29
• Category: Article
• ISSN: 0011-2275
• DOI: 10.1016/0011-2275(89)90002-7

✦ Synopsis

To identify the critical issues in designing high field conductors of oxide superconductors, the magnetic stability of Y1Ba2Cu307-x has been analysed assuming two sets of the operating temperature and critical current density: 77 K, 1 x 10 s A m -2 and 20 K, 1 x 10 l° A m -2. The dynamic stability criterion gives more stringent conditions on the allowable maximum size of the superconductor compared with the adiabatic stability criterion. The thickness of tape or the wire radius should be less than 0.3 mm at 77 K and 0.1 mm at 20 K. The dynamic stability further requires that superconducting tape or wire is embedded in a normal metal with low electrical resistivity and high thermal conductivity.