Magnetic Properties of Multifilamentary Nb3Sn Composites
Magnetic behavior of composite superconductors depends strongly on the distribution and the properties of superconducting filaments and the matrix materials. This paper presents experimental results of magnetization measurements on both conventional internal-bronze wires and in-situ composites. The results are presented in M-H curves and analyzed in terms of filamentary magnetization and coupling magnetization. For comparison, results of a typical NbTi-Cu matrix wire are also presented. Techniques to maintain the individuality of each filament under external field change are reviewed and discussed in detail, ac loss analysis of each type of composite for certain possible technical applications is emphasized.
KeywordsHysteresis Loss Pickup Coil Partial Penetration Effective Resistivity Composite Wire
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