On the connection between normal zone voltage and hot spot temperature in uncooled magnets
| Autor: | Lawrence Dresner |
|---|---|
| Rok vydání: | 1994 |
| Předmět: |
Physics
Condensed matter physics business.industry General Physics and Astronomy Hot spot (veterinary medicine) Condensed Matter::Mesoscopic Systems and Quantum Hall Effect Connection (mathematics) Conductor Matrix (mathematics) Optics Thermal conductivity Electrical resistivity and conductivity Magnet General Materials Science business Voltage |
| Zdroj: | Cryogenics. 34:111-118 |
| ISSN: | 0011-2275 |
| DOI: | 10.1016/0011-2275(94)90033-7 |
| Popis: | The propagation of normal zones in uncooled magnets has been studied. Special cases have been identified in which closed formulae for the propagation velocity can be obtained. An approximate formula is proposed for the more general case in which the matrix resistivity and the thermal conductivity obey the Wiedemann-Franz law and the specific heat depends arbitrarily on the temperature. With this formula, the connection between the normal zone voltage and the hot spot temperature can be worked out. In an example studied in detail (Ag/BSCCO conductor at 20 K), the voltage appears adequate to allow detection of the normal zone before the conductor overheats. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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