SUPERCONDUCTIVITY AT HIGH MAGNETIC FIELDS AND CURRENT DENSITIES IN SOME Nb- Zr ALLOYS

Journal Article · Thu Jun 15 00:00:00 EDT 1961 · Phys. Rev. Letters

DOI:https://doi.org/10.1103/PhysRevLett.6.671· OSTI ID:4040241

Berlincourt, T G; Hake, R R; Leslie, D H

The results on Nb-Zr alloys were obtained during investigation of resistive superconducting transitions in certain Ti-, Zr-, Nb-, Hf-, and Ta-rich lunary alloys in magnetic fields up to 30 kgauss. The data show that cold-worked Nbrich Nb-Zr alloys display zero electrical resistance at current densities as high as 10/sup 5/ amp/cm/sup 2/ at 30 kgauss and at 4.2 deg K. Present measurements reveal high-field superconducting effects in cold-rolled Nb-Zr alloys such as a marked dependence of the magnitude of the maximum zeroresistance current upon the direction of the externally applied transverse magnetic-field rehative to the rolled surface of the specimen, and anomalous increase of the maximum zero-resistance current with increase of magnetic field strength over certain regions in certain alloy specimens. The source materials, method of fabrication, and cross-sectional dimensions of the specimens are given. (P-C-H- )

• Research Organization: Atomics International, Canoga Park, Calif.
• NSA Number: NSA-15-022853
• OSTI ID: 4040241
• Journal Information: Phys. Rev. Letters, Vol. Vol: 6; Other Information: Orig. Receipt Date: 31-DEC-61
• Country of Publication: Country unknown/Code not available
• Language: English

Related Subjects

PHYSICS
CROSS SECTIONS
CURRENTS
ELECTRIC CONDUCTIVITY
FABRICATION
HAFNIUM ALLOYS
LOW TEMPERATURE
MAGNETIC FIELDS
MEASURED VALUES
NIOBIUM ALLOYS
ROLLING
SUPERCONDUCTIVITY
SURFACES
TANTALUM ALLOYS
TITANIUM ALLOYS
TRANSIENTS
VARIATIONS
ZIRCONIUM ALLOYS