New processing technique for forming flexible A-15 superconducting tapes with extremely high critical current densities and magnetic fields

Journal Article · Mon Nov 10 04:00:00 EST 1986 · Appl. Phys. Lett.; (United States)

DOI:https://doi.org/10.1063/1.97394· OSTI ID:5164247

Clapp, M T; Shi, D

Alloys of Nb/sub 73/Al/sub 12/Si/sub 14.5/B/sub 0.5/ were rapidly quenched using the melt spinning technique to form fine amorphous ribbons. These were then annealed into A-15 tapes with a variety of grain sizes. The smaller the grain was the more flexible the tape and the higher the critical current density J/sub c/. The best results were obtained for a tape with a grain size of 15 nm; it could be bent to a diameter of 1 mm without breaking and it had a J/sub c/ of 3.3 x 10/sup 10/ A/m/sup 2/ at a magnetic field of 20 T.

• Research Organization: Department of Mechanical Engineering, University of Massachusetts, Amherst, Massachusetts 01003
• OSTI ID: 5164247
• Journal Information: Appl. Phys. Lett.; (United States), Journal Name: Appl. Phys. Lett.; (United States) Vol. 49:19; ISSN APPLA
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360104* -- Metals & Alloys-- Physical Properties
656101 -- Solid State Physics-- Superconductivity-- General Theory-- (-1987)
656102 -- Solid State Physics-- Superconductivity-- Acoustic
Electronic
Magnetic
Optical
& Thermal Phenomena-- (-1987)
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ALLOYS
ALUMINIUM ALLOYS
BORON ADDITIONS
BORON ALLOYS
CRITICAL CURRENT
CRYSTAL STRUCTURE
CURRENT DENSITY
CURRENTS
DATA
ELECTRIC CURRENTS
EXPERIMENTAL DATA
FABRICATION
FILMS
GRAIN SIZE
INFORMATION
MICROSTRUCTURE
NIOBIUM ALLOYS
NIOBIUM BASE ALLOYS
NUMERICAL DATA
PROCESSING
QUENCHING
SILICON ALLOYS
SIZE
SUPERCONDUCTING FILMS
SYNTHESIS