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Title: Inductively-Charged High-Temperature Superconductors And Methods Of Use

Abstract

The invention provides methods of charging superconducting materials and, in particular, methods of charging high-temperature superconducting materials. The methods generally involve cooling a superconducting material to a temperature below its critical temperature. Then, an external magnetic field is applied to charge the material at a nearly constant temperature. The external magnetic field first drives the superconducting material to a critical state and then penetrates into the material. When in the critical state, the superconducting material loses all the pinning ability and therefore is in the flux-flow regime. In some embodiments, a first magnetic field may be used to drive the superconducting material to the critical state and then a second magnetic field may be used to penetrate the superconducting material. When the external field or combination of external fields are removed, the magnetic field that has penetrated into the material remains trapped. The charged superconducting material may be used as solenoidal magnets, dipole magnets, or other higher order multipole magnets in many applications.

Inventors:
 [1]
  1. Sharon, MA
Issue Date:
Research Org.:
Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States)
OSTI Identifier:
880080
Patent Number(s):
6621395
Application Number:
10/592897
Assignee:
Massachusetts Institute of Technology (Cambridge, MA)
Patent Classifications (CPCs):
H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01F - MAGNETS
Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC Y10S - TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
DOE Contract Number:  
FG02-93ER12134
Resource Type:
Patent
Country of Publication:
United States
Language:
English

Citation Formats

Bromberg, Leslie. Inductively-Charged High-Temperature Superconductors And Methods Of Use. United States: N. p., 2003. Web.
Bromberg, Leslie. Inductively-Charged High-Temperature Superconductors And Methods Of Use. United States.
Bromberg, Leslie. Tue . "Inductively-Charged High-Temperature Superconductors And Methods Of Use". United States. https://www.osti.gov/servlets/purl/880080.
@article{osti_880080,
title = {Inductively-Charged High-Temperature Superconductors And Methods Of Use},
author = {Bromberg, Leslie},
abstractNote = {The invention provides methods of charging superconducting materials and, in particular, methods of charging high-temperature superconducting materials. The methods generally involve cooling a superconducting material to a temperature below its critical temperature. Then, an external magnetic field is applied to charge the material at a nearly constant temperature. The external magnetic field first drives the superconducting material to a critical state and then penetrates into the material. When in the critical state, the superconducting material loses all the pinning ability and therefore is in the flux-flow regime. In some embodiments, a first magnetic field may be used to drive the superconducting material to the critical state and then a second magnetic field may be used to penetrate the superconducting material. When the external field or combination of external fields are removed, the magnetic field that has penetrated into the material remains trapped. The charged superconducting material may be used as solenoidal magnets, dipole magnets, or other higher order multipole magnets in many applications.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2003},
month = {9}
}

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Works referenced in this record:

Quasipermanent magnets of high temperature superconductor: Temperature dependence
journal, June 1993


Progress in Jc, Pinning, and Grain Size, for Trapped Field Magnets
book, January 1994


Evaluation of YBa/sub 2/Cu/sub 3/O/sub 7-x/ bulk superconductors for high field magnet applications
journal, March 1993


Quasi permanent superconducting magnet of very high field
journal, July 1993


Unusually large shielding fields in single‐grain YBa 2 Cu 3 O 7−δ
journal, August 1994


Improvement in Magnetic Shielding by Use of a Triple-Cylinder Configuration of Superconducting BPSCCO
book, January 1994


Permanent magnets of high‐ T c superconductors
journal, May 1993


Influence of Wall Thickness on Magnetic Shielding Effects of BPSCCO Cylinders
book, January 1994