High-Current Superconductive Pressure Contact Studies

Superconductive switches with a high-critical-current (100–200 A) capability have been shown to be practical. Materials thought most likely to be effective as high-critical-current pressure contacts were tested. The effects of oxidation, preloading at room temperature, and transverse magnetic fields...

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Veröffentlicht in:	J. Appl. Phys. 43: No. 3, 1226-30(Mar 1972) 1226-30(Mar 1972), 1972-01, Vol.43 (3), p.1226-1230
Hauptverfasser:	Winter, J. J., Breslin, J. T., Gaulé, G. K.
Format:	Artikel
Sprache:	eng
Schlagworte:	CRITICAL CURRENT ELECTRIC CONTACTS INTERMETALLIC COMPOUNDS- NIOBIUM ALLOYS- TIN ALLOYS LEAD LEAD/properties as switch contact material of, superconducting critical current N42200 -Engineering-Facilities & Equipment N66200 -Physics (Low Temperature)-Superconductivity NIOBIUM ALLOYS AND SYSTEMS/Nb-Sn, superconducting critical current properties of Nb$sub 3$Sn as switch contact material NIOBIUM/properties as switch contact material of, superconducting critical current OXIDATION PRESSURE DEPENDENCE SUPERCONDUCTORS SWITCHES NIOBIUM SWITCHES/properties of superconductors as contact materials for TIN ALLOYS AND SYSTEMS/Nb-Sn, superconducting critical current properties of Nb$sub 3$Sn as switch contact material
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Beschreibung
Zusammenfassung:	Superconductive switches with a high-critical-current (100–200 A) capability have been shown to be practical. Materials thought most likely to be effective as high-critical-current pressure contacts were tested. The effects of oxidation, preloading at room temperature, and transverse magnetic fields on the critical-current capacity of contacts were studied. The relationship of the critical current of the junction to its normal-state resistance is investigated for Pb contacts.
ISSN:	0021-8979 1089-7550
DOI:	10.1063/1.1661242