Dynamic stabilization of Nb₃Sn tape superconductors

Technical Report · Mon Oct 01 00:00:00 EDT 1973

DOI:https://doi.org/10.2172/5027035· OSTI ID:5027035

Koyama, K.; Lubell, M. S.

The stabilization of Nb₃SN ribbon superconductor achieved by the interleaving of high conductivity aluminum has been experimentally investigated by observing the flux jumping on a rectangular stack placed in a changing transverse magnetic field. The results show that raising the conductivity of the aluminum leads to significantly increased stability as does increasing the thickness at fixed conductivity. The first flux jump field for both cases is given for various rates of increase of the applied transverse field. The limiting value at fast rates is compared to a new theory of dynamic stabilization recently proposed by one of the authors (KK) and found to agree well for the case where the interleaved aluminum is thermally insulated from the superconductor. Agreement is not good when the aluminum is partially contributing to the thermal diffusion in an undetermined amount.

• Research Organization: Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
• Sponsoring Organization: US Atomic Energy Commission (AEC)
• DOE Contract Number: W-7405-ENG-26
• NSA Number: NSA-29-003647
• OSTI ID: 5027035
• Report Number(s): ORNL-TM-4391; NSA-29-003647
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
NIOBIUM BASE ALLOYS
MAGNETIC FLUX
TIN ALLOYS
ALUMINIUM
ELECTRIC CONDUCTIVITY
INTERMETALLIC COMPOUNDS
STABILIZED SUPERCONDUCTORS
SUPERCONDUCTIVITY
THERMAL DIFFUSION
ALLOYS
ELECTRICAL PROPERTIES
ELEMENTS
METALS
NIOBIUM ALLOYS
PHYSICAL PROPERTIES
SUPERCONDUCTORS
420201* - Engineering- Cryogenic Equipment & Devices