Published November 4, 1991 | Version v1
Journal article Metadata-only

Effects of material processing in high temperature superconducting magnetic bearings

Creators

  • 1. Texas Center for Superconductvity, University of Houston, Houston, Texas (USA)

Description

A study of the levitation forces related to superconducting bearing design was conducted on free-sintered and melt-textured Y1Ba2Cu3O7-δ(YBCO) materials. Comparisons were made between free sintered, variously oriented, and randomly oriented melt-textured materials. Magnetic force measurements were also conducted on oriented YBCO before and after neutron irradiation. A magnetic bearing of new design utilizing the phenomenon of flux pinning was then fabricated using melt-textured YBCO with permanent magnets and a speed of 135 000 rpm was achieved. Rotational dissipation and magnetic stiffness measurements were performed on the bearing prototype

Additional details

Publishing Information

Journal Title
Applied Physics Letters
Journal Volume
59
Journal Issue
19
Series
Appl. Phys. Lett.
Journal Page Range
2442-2444
ISSN
0003-6951
CODEN
APPLA

INIS

Country of Publication
United States
Country of Input or Organization
United States
INIS RN
23010503
Subject category
S75: CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; S36: MATERIALS SCIENCE;
Descriptors DEI
BARIUM OXIDES; CUPRATES; DISSIPATION FACTOR; HIGH-TC SUPERCONDUCTORS; LEVITATION; MAGNETIC BEARINGS; NEUTRON BEAMS; PHYSICAL RADIATION EFFECTS; QUATERNARY COMPOUNDS; SINTERING; YTTRIUM OXIDES
Descriptors DEC
ALKALINE EARTH METAL COMPOUNDS; AMINES; BARIUM COMPOUNDS; BEAMS; BEARINGS; CHALCOGENIDES; COPPER COMPOUNDS; FABRICATION; NUCLEON BEAMS; ORGANIC COMPOUNDS; OXIDES; OXYGEN COMPOUNDS; PARTICLE BEAMS; RADIATION EFFECTS; SUPERCONDUCTORS; TRANSITION ELEMENT COMPOUNDS; YTTRIUM COMPOUNDS