Thermal stability of ceramic superconductors

✍ Scribed by P.W. Eckels

• Publisher: Elsevier Science
• Year: 1992
• Tongue: English
• Weight: 253 KB
• Volume: 32
• Category: Article
• ISSN: 0011-2275
• DOI: 10.1016/0011-2275(92)90087-q

✦ Synopsis

The critical current of high-temperature ceramic superconductors measured by transport current methods is more strongly dependent upon cooling mechanisms and sample geometry than that of low-temperature superconductors because of their anisotropy and lower thermal conductivity. This work relates the critical current of conductors to the local cooling condition, geometry, and properties via a superconductor stability theory. The critical current is predicted to be strongly dependent upon these parameters. LHe cooling does not necessarily increase stability and critical transport current when compared to LN 2 cooling.