Abstract
The quenching curves of some high-field superconductors have been measured for the first time in steady transverse magnetic fields up to 150 kOe. The quenching curves of Nb3Sn diffusion-layers on single niobium wires show the same slope in the high-field region as they do in lower fields. On the other hand, the quenching curves of “Nb-Sn multiwires” with a synthetic filamentary structure of many interior Nb3Sn diffusion-layers in the core of this material are nearly horizontal in the high-field region with very high critical current values. The quenching curves of V3Ga diffusion-layers and of V3Ga core-wires show an unexpected inversion at about 90 and 100 kOe respectively with increasing critical currents in higher fields.
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