Critical current of Nb/sub 3/Sn practical superconductors in high magnetic field
Journal Article
·
· IEEE Trans. Magn.; (United States)
The critical currents of Nb/sub 3/Sn practical superconductors were measured in high magnetic fields up to 22 T at 4.2 K. The conductors investigated were MF Nb/sub 3/Sn wire, CVD-Nb/sub 3/Sn tape and diffusion processed Nb/sub 3/Sn tape. The measurements show that the conductors have excellent superconducting properties. The multifilamentary Nb/sub 3/Sn wire possesses a higher overall current density Jc /SUP ov/ (Nb/sub 3/Sn + bronze), especially in high fields above 12T. Its Jc /SUP ov/ , for example, is 2.4 X 10/sup 4/ A/cm/sup 2/ at 15T. The CVD-Nb/sub 3/Sn tape displays a higher Jc in the fields up to 12T, while the diffusion processed Nb/sub 3/Sn tape has an excellent Jc(Nb/sub 3/Sn) in high field. Their Jc(Nb/sub 3/Sn), for instance, are 4.0 X 10/sup 5/ A/cm/sup 2/ (at 11T) for CVD-Nb/sub 3/Sn and 1.7 X 10/sup 5/ A/cm/sup 2/ (at 15T) for diffusion processed Nb/sub 3/Sn tape, respectively. The upper critical field Bc2 are determined extrapolately by using Kramer's scaling law for flux pinning. A discussion is presented respect of the results of measurement and the upper critical field.
- Research Organization:
- Baoji Instit for Nonferrous Metal Research, P.O. Box 71, Baoji, Shaanxi
- OSTI ID:
- 5535707
- Journal Information:
- IEEE Trans. Magn.; (United States), Journal Name: IEEE Trans. Magn.; (United States) Vol. 19:3; ISSN IEMGA
- Country of Publication:
- United States
- Language:
- English
Similar Records
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Conference
·
Thu Feb 28 23:00:00 EST 1985
· IEEE Trans. Magn.; (United States)
·
OSTI ID:6388447
Critical current densities of the multifilamentary Nb/sub 3/Sn superconductors produced by the solid-liquid diffusion method
Journal Article
·
Sun Oct 31 23:00:00 EST 1982
· J. Appl. Phys.; (United States)
·
OSTI ID:6752798
Nb{sub 3}Sn multifilament wires and tapes for high-field magnetic systems
Journal Article
·
Sun Jun 01 00:00:00 EDT 1997
· Advances in Cryogenic Engineering
·
OSTI ID:482162
Related Subjects
36 MATERIALS SCIENCE
360104 -- Metals & Alloys-- Physical Properties
420201* -- Engineering-- Cryogenic Equipment & Devices
656102 -- Solid State Physics-- Superconductivity-- Acoustic
Electronic
Magnetic
Optical
& Thermal Phenomena-- (-1987)
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ALLOYS
CRITICAL CURRENT
CURRENT DENSITY
CURRENTS
ELECTRIC CURRENTS
INTERMETALLIC COMPOUNDS
MAGNETIC FIELDS
NIOBIUM ALLOYS
NIOBIUM BASE ALLOYS
SUPERCONDUCTING WIRES
SUPERCONDUCTORS
TIN ALLOYS
WIRES
360104 -- Metals & Alloys-- Physical Properties
420201* -- Engineering-- Cryogenic Equipment & Devices
656102 -- Solid State Physics-- Superconductivity-- Acoustic
Electronic
Magnetic
Optical
& Thermal Phenomena-- (-1987)
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ALLOYS
CRITICAL CURRENT
CURRENT DENSITY
CURRENTS
ELECTRIC CURRENTS
INTERMETALLIC COMPOUNDS
MAGNETIC FIELDS
NIOBIUM ALLOYS
NIOBIUM BASE ALLOYS
SUPERCONDUCTING WIRES
SUPERCONDUCTORS
TIN ALLOYS
WIRES