Transverse stress effects in Nb{sub 3}Sn cables

Journal Article · Fri Jul 01 04:00:00 EDT 1994 · IEEE Transactions on Magnetics

DOI:https://doi.org/10.1109/20.305643· OSTI ID:32120

Pasztor, G; Anghel, A; Jakob, B; Wesche, R ^[1]

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1. Paul Scherrer Inst., Villigen PSI (Switzerland)

The effect of transverse compressive stress on the critical current of solder-filled and unfilled Nb{sub 3}Sn cables is reported. The conductor used in this study is a Nb{sub 3}Sn Rutherford cable manufactured with a bronze-process wire of 0.92 mm diameter. Like epoxy-impregnated cables, solder-filled cables exhibit much less degradation than wire samples when subjected to the same stresses. On the other hand, unfilled specimens are irreversibly damaged at the thin edge when loaded to 160 MPa, and show significantly higher degradation than similar specimens of the solder-filled cable. A finite-element calculation of the stress state inside a particular composite superconductor indicates that more compressive stress is developed in the virgin wire than in a straight wire segment in a real cable environment.

• OSTI ID: 32120
• Report Number(s): CONF-930926--
• Journal Information: IEEE Transactions on Magnetics, Journal Name: IEEE Transactions on Magnetics Journal Issue: 4Pt2 Vol. 30; ISSN IEMGAQ; ISSN 0018-9464
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
CRITICAL CURRENT
DESIGN
EXPERIMENTAL DATA
NIOBIUM BASE ALLOYS
STRESS ANALYSIS
SUPERCONDUCTING CABLES
SUPERCONDUCTING MAGNETS
SUPERCONDUCTING WIRES
TIN ALLOYS