Stable levitation of steel rotors using permanent magnets and high-temperature superconductors

Journal Article · Fri Jul 01 00:00:00 EDT 1994 · Journal of Applied Physics; (United States)

DOI:https://doi.org/10.1063/1.357115· OSTI ID:7112177

Hull, J R; Passmore, J L; Mulcahy, T M; Rossing, T D ^[1]

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1. Energy Technology Division, Argonne National Laboratory, Argonne, Illinois 60439 (United States)

Individual freely spinning magnetic steel rotors were levitated by combining the attractive force between permanent magnets and the rotor with the repulsive force between high-temperature superconductors and the steel. The levitation force and stiffness of several configurations are presented, and the application of this levitation method to high-speed bearings is discussed.

• DOE Contract Number: W-31-109-ENG-38
• OSTI ID: 7112177
• Journal Information: Journal of Applied Physics; (United States), Vol. 76:1; ISSN 0021-8979
• Country of Publication: United States
• Language: English

Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
SUPERCONDUCTING MAGNETS
LEVITATION
BARIUM OXIDES
COPPER OXIDES
HIGH-TC SUPERCONDUCTORS
ROTORS
STEELS
YTTRIUM OXIDES
ALKALINE EARTH METAL COMPOUNDS
ALLOYS
BARIUM COMPOUNDS
CHALCOGENIDES
COPPER COMPOUNDS
ELECTRICAL EQUIPMENT
ELECTROMAGNETS
EQUIPMENT
IRON ALLOYS
IRON BASE ALLOYS
MAGNETS
OXIDES
OXYGEN COMPOUNDS
SUPERCONDUCTING DEVICES
SUPERCONDUCTORS
TRANSITION ELEMENT COMPOUNDS
YTTRIUM COMPOUNDS
665412* - Superconducting Devices- (1992-)