Abstract
Foreword. This paper deals with the wire breaking problems during the fabrication of the NbTi SSC superconducting wire. The global objective stated in Refs. 1 and 2 is to establish sound guidelines for the design of the superconductor and of the pass-reduction practices that will lead to the fabrication of high-quality defect-free NbTi SSC superconducting wire in a reproducible cost-effective manner. In larger detail:
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a
The geometrical factors of the assembly of the wire need to be analyzed as factors in the success of the fabrication of final small-size filaments without breaks.
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b
The ranges of processing parameters (geometric, material strength ratios, and pass-reduction schedules), which lead to successful products without filament breaks, need to be determined analytically. A quantitative criterion for the selection of the range of parameters is needed.
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References
C. L. Goodzeit, M. Anerella and G. Ganetis, “Forces in Superconducting Accelerator Magnets with Strain Gauge Transducers,” IEEE Trans. Magnetics, 25, no. 2, pp. 1463-1468, March 1989.
G. Morgan, “C358D: A Revision of the SSC Coil Design C358A,” Magnet Division Note 225-1 (SSC-MD-183), Brookhaven National Laboratory, Upton, NY 11973 (1988).
C. Taylor and P. Dahl, “Dipole Magnets: A Brief Description,” in “SSC Conceptual Design Magnet Design Details,” SSC-SR-2020B, 1986.
C. Goodzeit and P. Wanderer, Summary of Construction Details and Test Performance of Recent Series of 1.8 Meter SSC Dipoles at BNL, in “Supercollider 2,” M. McAshan, ed., Plenum Press, New York (1990).
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Avitzur, B., Talbert, S. (1991). Criteria for the Prevention of Filament and Wire Breaking During the Fabrication of Multifilamentary Composite Superconducting Wire. In: Nonte, J. (eds) Supercollider 3. Springer, Boston, MA. https://doi.org/10.1007/978-1-4615-3746-5_33
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DOI: https://doi.org/10.1007/978-1-4615-3746-5_33
Publisher Name: Springer, Boston, MA
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