Effect of size and geometry on levitation force measurements between permanent magnets and high-temperature superconductors

Conference · Tue Jan 01 00:00:00 EST 1991

OSTI ID:5637314

Cha, Y S; Hull, J R; Mulcahy, T M; Rossing, T D ^[1]

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1. Argonne National Lab., IL (USA) Northern Illinois Univ., De Kalb, IL (USA). Dept. of Physics

A series of experiments measuring the levitation force between a permanent magnet (PM) and a high temperature superconductor (HTS) and between pairs of PMs, coupled with finite-element analysis of the experiments, has identified factors that influence the levitation force. The self demagnetizing factor within the HTS and, to some extent, within the PM has a profound effect on magnetic pressure. For large HTSs with strong flux-pinning, the demagnetizing effect of the diamagnetic image of the PM is substantial. For short distances between the HTS and PM, compression of magnetic flux produces a dependence on PM diameter. 8 refs.

• Research Organization: Argonne National Lab., IL (USA)
• Sponsoring Organization: USDOE; USDOE, Washington, DC (USA)
• DOE Contract Number: W-31109-ENG-38
• OSTI ID: 5637314
• Report Number(s): ANL/CP-72199; CONF-910608-3; ON: DE91012472
• Resource Relation: Conference: 5. joint magnetism and magnetic materials (MMM/INTERMAG) conference, Pittsburgh, PA (USA), 18-21 Jun 1991
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
HIGH-TC SUPERCONDUCTORS
LEVITATION
PERMANENT MAGNETS
BARIUM OXIDES
BORON ALLOYS
COPPER OXIDES
CYLINDRICAL CONFIGURATION
DEMAGNETIZATION
FINITE ELEMENT METHOD
GEOMETRY
IRON ALLOYS
MAGNETIC FLUX
MAGNETIC PROPERTIES
NEODYMIUM BASE ALLOYS
SIZE
YTTRIUM OXIDES
ALKALINE EARTH METAL COMPOUNDS
ALLOYS
BARIUM COMPOUNDS
CHALCOGENIDES
CONFIGURATION
COPPER COMPOUNDS
MAGNETS
MATHEMATICS
NEODYMIUM ALLOYS
NUMERICAL SOLUTION
OXIDES
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
RARE EARTH ALLOYS
SUPERCONDUCTORS
TRANSITION ELEMENT COMPOUNDS
YTTRIUM COMPOUNDS
360204* - Ceramics
Cermets
& Refractories- Physical Properties
360104 - Metals & Alloys- Physical Properties