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Title: High performance magnetic bearing systems using high temperature superconductors

Abstract

Disclosed are a magnetic bearing apparatus and a method for providing at least one stabilizing force in a magnetic bearing structure with a superconducting magnetic assembly and a magnetic assembly, by providing a superconducting magnetic member in the superconducting magnetic assembly with a plurality of domains and arranging said superconducting magnetic member such that at least one domain has a domain C-axis vector alignment angularly disposed relative to a reference axis of the magnetic member in the magnetic assembly. 7 figs.

Inventors:
Publication Date:
Research Org.:
Univ. of Chicago, IL (United States)
Sponsoring Org.:
USDOE, Washington, DC (United States)
OSTI Identifier:
644415
Patent Number(s):
US 5,747,426/A/
Application Number:
PAN: 8-483,458; TRN: 98:007956
Assignee:
Commonwealth Research Corp., Chicago, IL (United States) PTO; SCA: 665412; PA: EDB-98:097568; SN: 98001993251
DOE Contract Number:
W-31109-ENG-38
Resource Type:
Patent
Resource Relation:
Other Information: PBD: 5 May 1998
Country of Publication:
United States
Language:
English
Subject:
66 PHYSICS; SUPERCONDUCTING DEVICES; HIGH-TC SUPERCONDUCTORS; DESIGN; MAGNETIC BEARINGS; ALIGNMENT

Citation Formats

Abboud, R.G.. High performance magnetic bearing systems using high temperature superconductors. United States: N. p., 1998. Web.
Abboud, R.G.. High performance magnetic bearing systems using high temperature superconductors. United States.
Abboud, R.G.. 1998. "High performance magnetic bearing systems using high temperature superconductors". United States. doi:.
@article{osti_644415,
title = {High performance magnetic bearing systems using high temperature superconductors},
author = {Abboud, R.G.},
abstractNote = {Disclosed are a magnetic bearing apparatus and a method for providing at least one stabilizing force in a magnetic bearing structure with a superconducting magnetic assembly and a magnetic assembly, by providing a superconducting magnetic member in the superconducting magnetic assembly with a plurality of domains and arranging said superconducting magnetic member such that at least one domain has a domain C-axis vector alignment angularly disposed relative to a reference axis of the magnetic member in the magnetic assembly. 7 figs.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = 1998,
month = 5
}
  • A magnetic bearing apparatus and a method for providing at least one stabilizing force in a magnetic bearing structure with a superconducting magnetic assembly and a magnetic assembly, by providing a superconducting magnetic member in the superconducting magnetic assembly with a plurality of domains and arranging said superconducting magnetic member such that at least one domain has a domain C-axis vector alignment angularly disposed relative to a reference axis of the magnetic member in the magnetic assembly.
  • The present invention provides articles including a base substrate including a layer of an oriented cubic oxide material having a rock-salt-like structure layer thereon; and, a buffer layer upon the oriented cubic oxide material having a rock-salt-like structure layer, the buffer layer having an outwardly facing surface with a surface morphology including particulate outgrowths of from 10 nm to 500 run in size at the surface, such particulate outgrowths serving as flux pinning centers whereby the article maintains higher performance within magnetic fields than similar articles without the necessary density of such outgrowths.
  • A high temperature superconductor material bearing system (38) This system (38) includes a rotor (50) having a ring permanent magnet (60), a plurality of permanent magnets (16, 20 and 70) for interacting to generate levitation forces for the system (38). This group of magnets are a push/pull bearing (75). A high temperature superconductor structure (30) interacts with the ting permanent magnet (60) to provide stabilizing forces for the system (38).
  • This patent describes a structure for confining or guiding electromagnetic radiation having wavelengths in the range of approximately 10 {mu}m to one centimeter, the structure having surfaces exposed to the radiation and the surface being covered with superconducting materials having critical temperatures greater than 35{degrees}K.
  • A multi-domained bulk REBa.sub.2 CU.sub.3 O.sub.x with low-angle domain boundaries which resemble a quasi-single domained material and a method for producing the same comprising arranging multiple seeds, which can be small single crystals, single domained melt-textured REBa.sub.2 CU.sub.3 O.sub.x pieces, textured substrates comprises of grains with low misorientation angles, or thick film REBa.sub.2 CU.sub.3 O.sub.x deposited on such textured substrate, such seeds being tailored for various REBa.sub.2 CU.sub.3 O.sub.x compounds, in specific pattern and relative seed orientations on a superconductor precursor material which may be placed in contact with a porous substrate so as to reduce the amount of liquidmore » phase in the melt. Because seeds can be arranged in virtually any pattern, high quality REBa.sub.2 CU.sub.3 O.sub.x elements of virtually unlimited size and complex geometry can be fabricated.« less