Share

STABILITY OF SUPERCONDUCTORS IN RAPIDLY CHANGING MAGNETIC FIELDS.

Author(s) : SCHMIDT C.

Type of article: Article

Summary

THE STABILITY BEHAVIOUR OF LOW LOSS COPPER/COPPER-NICKEL/NIOBIUM-TITANIUM MIXED MATRIX CONDUCTORS IN RAPIDLY CHANGING MAGNETIC FIELDS, B, WAS INVESTIGATED. THE TEST CONDUCTORS ARE SUPPLIED WITH A TRANSPORT CURRENT AND EXPOSED TO HALF CYCLE SINUSOIDAL FIELD PULSES, TYPICALLY OF LENGTH 10 MILLISEC AND A SLOPE VALUE UP TO A FEW HUNDRED TESLAS PER SECOND. COOLING CONDITIONS OF THE CONDUCTOR WERE POOL BOILING, SUPERCRITICAL HELIUM AND LIQUID HELIUM. THE STABILITY LIMIT IS MAINLY DETERMINED BY THE TRANSIENT HEAT TRANSFER DURING THE PULSE. A STABILITY MODEL IS DEVELOPED WHICH COMPARES THE ENERGY COUPLED INTO THE CONDUCTOR BY THE FIELD PULSE WITH THE ENERGY WHICH CAN BE ABSORBED BY THE SURFACE NEAR THE HELIUM LAYER DUE TO THE TRANSIENT HEAT TRANSFER.

Details

  • Original title: STABILITY OF SUPERCONDUCTORS IN RAPIDLY CHANGING MAGNETIC FIELDS.
  • Record ID : 1991-1999
  • Languages: English
  • Source: Cryogenics - vol. 30 - n. 6
  • Publication date: 1990

Links


See other articles in this issue (7)
See the source

Indexing