skip to main content
DOE Patents title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Magnetic preferential orientation of metal oxide superconducting materials

Abstract

A superconductor comprised of a polycrystalline metal oxide such as YBa.sub.2 Cu.sub.3 O.sub.7-X (where 0<0.5) exhibits superconducting properties and is capable of conducting very large current densities. By aligning the two-dimensional Cu-O layers which carry the current in the superconducting state in the a- and b-directions, i.e., within the basal plane, a high degree of crystalline axes alignment is provided between adjacent grains permitting the conduction of high current densities. The highly anisotropic diamagnetic susceptibility of the polycrystalline metal oxide material permits the use of an applied magnetic field to orient the individual crystals when in the superconducting state to substantially increase current transport between adjacent grains. In another embodiment, the anisotropic paramagnetic susceptibility of rare-earth ions substituted into the oxide material is made use of as an applied magnetic field orients the particles in a preferential direction. This latter operation can be performed with the material in the normal (non-superconducting) state.

Inventors:
 [1];  [1];  [2]
  1. Bolingbrook, IL
  2. Downers Grove, IL
Issue Date:
Research Org.:
Argonne National Lab. (ANL), Argonne, IL (United States)
OSTI Identifier:
867458
Patent Number(s):
4942151
Assignee:
Arch Development Corporation (Argonne, IL)
Patent Classifications (CPCs):
H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01L - SEMICONDUCTOR DEVICES
C - CHEMISTRY C30 - CRYSTAL GROWTH C30B - SINGLE-CRYSTAL-GROWTH
DOE Contract Number:  
W-31109-ENG-38
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
magnetic; preferential; orientation; metal; oxide; superconducting; materials; superconductor; comprised; polycrystalline; yba; cu; 7-x; exhibits; properties; capable; conducting; current; densities; aligning; two-dimensional; cu-o; layers; carry; a-; b-directions; basal; plane; degree; crystalline; axes; alignment; provided; adjacent; grains; permitting; conduction; highly; anisotropic; diamagnetic; susceptibility; material; permits; applied; field; orient; individual; crystals; substantially; increase; transport; embodiment; paramagnetic; rare-earth; substituted; orients; particles; direction; latter; operation; performed; normal; non-superconducting; polycrystalline metal; adjacent grains; preferential orientation; superconducting properties; current densities; conducting material; oxide superconducting; magnetic field; metal oxide; superconducting material; oxide material; superconducting materials; applied magnetic; two-dimensional cu-o; substantially increase; crystalline axes; grains permitting; basal plane; axes alignment; paramagnetic susceptibility; exhibits superconducting; cu-o layers; superconductor comprised; increase current; /505/264/

Citation Formats

Capone, Donald W, Dunlap, Bobby D, and Veal, Boyd W. Magnetic preferential orientation of metal oxide superconducting materials. United States: N. p., 1990. Web.
Capone, Donald W, Dunlap, Bobby D, & Veal, Boyd W. Magnetic preferential orientation of metal oxide superconducting materials. United States.
Capone, Donald W, Dunlap, Bobby D, and Veal, Boyd W. Mon . "Magnetic preferential orientation of metal oxide superconducting materials". United States. https://www.osti.gov/servlets/purl/867458.
@article{osti_867458,
title = {Magnetic preferential orientation of metal oxide superconducting materials},
author = {Capone, Donald W and Dunlap, Bobby D and Veal, Boyd W},
abstractNote = {A superconductor comprised of a polycrystalline metal oxide such as YBa.sub.2 Cu.sub.3 O.sub.7-X (where 0<0.5) exhibits superconducting properties and is capable of conducting very large current densities. By aligning the two-dimensional Cu-O layers which carry the current in the superconducting state in the a- and b-directions, i.e., within the basal plane, a high degree of crystalline axes alignment is provided between adjacent grains permitting the conduction of high current densities. The highly anisotropic diamagnetic susceptibility of the polycrystalline metal oxide material permits the use of an applied magnetic field to orient the individual crystals when in the superconducting state to substantially increase current transport between adjacent grains. In another embodiment, the anisotropic paramagnetic susceptibility of rare-earth ions substituted into the oxide material is made use of as an applied magnetic field orients the particles in a preferential direction. This latter operation can be performed with the material in the normal (non-superconducting) state.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1990},
month = {1}
}

Patent:

Save / Share: