samarium-cobalt magnet

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samarium-cobalt magnet

[sə′mar·ē·əm ′kō‚bȯlt ′mag·nət]
(electromagnetism)
A rare-earth permanent magnet that is more efficient, has lower leakage and greater resistance to demagnetization, and can be magnetized to higher levels than conventional permanent magnets.
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References in periodicals archive ?
9] Tsutsui H et al found Samarium-Cobalt magnet to be superior in magnetic properties to other magnets.
have developed a new high-iron concentration samarium-cobalt magnet that is free of heavy rare earth elements, highly resistant to demagnetization, and that achieves significantly superior magnetic properties at high temperatures to the heat-resistant neodymium magnets currently used in motors.
Samarium-Cobalt Magnets: Samarium-cobalt (SmCo) magnets were developed in the 1960s and 1970s.
Samarium-cobalt (SmCo) magnets have the highest known resistance to demagnetization.
For higher temperatures, a special samarium-cobalt material may be specified.
Almost all existing electric traction motors employ permanent magnets made from materials such as neodymium-iron-boron and samarium-cobalt.
Lockheed Martin's Spy-1 radar on Aegis destroyers contains samarium-cobalt magnets that will need to be replaced over the 35-year lifespan of the radar.
Used magnetic materials are: Samarium-Cobalt and Neodymium-Iron-Boron, which combine high flux density (beyond 1 T) and very large coercive force (up to 7000 A/cm).
It uses rare-earth alloys of Nd-Fe-B and samarium-cobalt.
When the disc-shaped superconductor of yttrium-barium-copper oxide was cooled to -321 [degrees] F, it generated repulsive forces that levitated a rotor made of the permanent magnet alloy, samarium-cobalt.
Rare Earth (RE) magnets, such as samarium-cobalt, find use in Atomic Energy, Space and Defence industries for a variety of strategic and non-strategic applications.