Superconducting Coil Degradation
- 1 October 1965
- journal article
- research article
- Published by AIP Publishing in Journal of Applied Physics
- Vol. 36 (10) , 3250-3255
- https://doi.org/10.1063/1.1702959
Abstract
This paper describes experiments carried out to try to explain the degradation phenomenon of superconducting coils. It is established that flux jumps occurring in a low‐field zone cause a sudden decrease in the series current, which in turn causes a disturbance of field throughout the coil and thus probably results in a quench in a high‐field zone. Degradation of short samples is obtained by following a peculiar cycle of magnetization similar to that observed in a coil. An explanation is given to explain the difference of degradation observed between a short sample and a coil. A measurement of the apparent resistance of a superconducting wire under changing field conditions gives an equivalent resistivity of 10−14 Ω·cm for dB/dt = 200 G/sec.This publication has 3 references indexed in Scilit:
- ``TRAINING'' AND FLUX JUMPING IN SUPERCONDUCTING SOLENOIDS OF Nb–Zr AND Nb–TiApplied Physics Letters, 1964
- CURRENT-CARRYING CAPACITY OF SUPERCONDUCTING Nb–Zr SOLENOIDSApplied Physics Letters, 1962
- Critical Persistent Currents in Hard SuperconductorsPhysical Review Letters, 1962