Improved superconducting magnet wire
Abstract
This invention is directed to a superconducting tape or wire composed of alternating layers of copper and a niobium-containing superconductor such as niobium of NbTi, Nb/sub 3/Sn or Nb/sub 3/Ge. In general, each layer of the niobium-containing superconductor has a thickness in the range of about 0.05 to 1.5 times its coherence length (which for Nb/sub 3/Si is 41 A) with each copper layer having a thickness in the range of about 170 to 600 A. With the use of very thin layers of the niobium composition having a thickness within the desired range, the critical field (H/sub c/) may be increased by factors of 2 to 4. Also, the thin layers of the superconductor permit the resulting tape or wire to exhibit suitable ductility for winding on a magnet core. These compositions are also characterized by relatively high values of critical temperature and therefore will exhibit a combination of useful properties as superconductors.
- Inventors:
- Issue Date:
- OSTI Identifier:
- 7183238
- Application Number:
- ON: DE84011233
- Assignee:
- Dept. of Energy
- DOE Contract Number:
- W-31-109-ENG-38
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 70 PLASMA PHYSICS AND FUSION TECHNOLOGY; 71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; SUPERCONDUCTING CABLES; PATENTS; COPPER; DUCTILITY; GERMANIUM ALLOYS; LAYERS; NIOBIUM ALLOYS; SUPERCONDUCTORS; THICKNESS; TIN ALLOYS; TITANIUM ALLOYS; ALLOYS; CABLES; CONDUCTOR DEVICES; DIMENSIONS; DOCUMENT TYPES; ELECTRIC CABLES; ELECTRICAL EQUIPMENT; ELEMENTS; EQUIPMENT; MECHANICAL PROPERTIES; METALS; TENSILE PROPERTIES; TRANSITION ELEMENTS; 700202* - Fusion Power Plant Technology- Magnet Coils & Fields; 420201 - Engineering- Cryogenic Equipment & Devices
Citation Formats
Schuller, I K, and Ketterson, J B. Improved superconducting magnet wire. United States: N. p., 1983.
Web.
Schuller, I K, & Ketterson, J B. Improved superconducting magnet wire. United States.
Schuller, I K, and Ketterson, J B. Tue .
"Improved superconducting magnet wire". United States.
@article{osti_7183238,
title = {Improved superconducting magnet wire},
author = {Schuller, I K and Ketterson, J B},
abstractNote = {This invention is directed to a superconducting tape or wire composed of alternating layers of copper and a niobium-containing superconductor such as niobium of NbTi, Nb/sub 3/Sn or Nb/sub 3/Ge. In general, each layer of the niobium-containing superconductor has a thickness in the range of about 0.05 to 1.5 times its coherence length (which for Nb/sub 3/Si is 41 A) with each copper layer having a thickness in the range of about 170 to 600 A. With the use of very thin layers of the niobium composition having a thickness within the desired range, the critical field (H/sub c/) may be increased by factors of 2 to 4. Also, the thin layers of the superconductor permit the resulting tape or wire to exhibit suitable ductility for winding on a magnet core. These compositions are also characterized by relatively high values of critical temperature and therefore will exhibit a combination of useful properties as superconductors.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Aug 16 00:00:00 EDT 1983},
month = {Tue Aug 16 00:00:00 EDT 1983}
}