Development of an Innovative Insulation for Nb3Sn Wind and React Coils

Journal Article · Mon Jun 28 00:00:00 EDT 2004 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.1774578· OSTI ID:20653218

Puigsegur, A ^[1]; Rondeaux, F; Samoogabalan, K ^[1]; Prouzet, E ^[2]

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1. CEA Saclay, DSM - DAPNIA - SACM, Gif-sur-Yvette, 91191 (France)
2. Institut Europeen des Membranes (CNRS UMR 5635), 1919 Route de Mende, Montpellier, F-34293 (France)

At the present time, Nb3Sn is the best superconductor candidate for the realization of high field magnets (>10-11 teslas). However its implementation remains delicate because of the great brittleness of material after the heat treatment necessary to form the Nb3Sn compounds. The conventional insulation for Nb3Sn wind and react coils requires performing, after the heat treatment, a vacuum resin impregnation, which adds to the cost and raises failure risk. We propose a one-step innovating ceramic insulation deposited directly on the un-reacted conducting cable. The conducting cable is wound according to conventional techniques and, after the heat treatment necessary to the form the Nb3Sn, we obtain a coil having a mechanical cohesion, while maintaining a proper conductor positioning and a suitable electric insulation. We will have studied the electric properties of superconducting cable isolated at the room temperature and at 4.2 K.

• OSTI ID: 20653218
• Journal Information: AIP Conference Proceedings, Vol. 711, Issue 1; Conference: CEC 2003: Cryogenic engineering and international cryogenic materials conference on advances in cryogenic engineering, Anchorage, AK (United States), 22-26 Sep 2003; Other Information: DOI: 10.1063/1.1774578; (c) 2004 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
BRITTLENESS
CERAMICS
ELECTRICAL INSULATION
ELECTRICAL PROPERTIES
FAILURES
HEAT TREATMENTS
IMPREGNATION
NIOBIUM COMPOUNDS
POSITIONING
PROCESS HEAT
RESINS
SUPERCONDUCTING CABLES
SUPERCONDUCTING COILS
SUPERCONDUCTORS
TEMPERATURE DEPENDENCE
TEMPERATURE RANGE 0000-0013 K
TEMPERATURE RANGE 0273-0400 K
TIN COMPOUNDS