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A neodymium magnet (also known as NdFeB, NIB or Neo magnet) is a permanent magnet made from an alloy of neodymium, iron, and boron to form the Nd 2 Fe 14 B tetragonal crystalline structure. [1] They are the most widely used type of rare-earth magnet .
Ferrofluid on glass, with a rare-earth magnet underneath. A rare-earth magnet is a strong permanent magnet made from alloys of rare-earth elements.Developed in the 1970s and 1980s, rare-earth magnets are the strongest type of permanent magnets made, producing significantly stronger magnetic fields than other types such as ferrite or alnico magnets.
A samarium–cobalt (SmCo) magnet, a type of rare-earth magnet, is a strong permanent magnet made of two basic elements: samarium and cobalt.. They were developed in the early 1960s based on work done by Karl Strnat at Wright-Patterson Air Force Base and Alden Ray at the University of Dayton.
The facility houses several magnets, including a 45 Tesla hybrid magnet, which combines resistive and superconducting magnets. The lab's 41.4 Tesla resistive magnet is the strongest DC (continuous-field) resistive magnet in the world, [13] and the 25 Tesla Keck magnet has the highest homogeneity of any resistive magnet. [14]
Plate from a 16 T Bitter magnet, 40 cm diameter, made of copper. In operation it carries a current of 20 kiloamperes In operation it carries a current of 20 kiloamperes Bitter magnets are constructed of circular conducting metal plates (known as Bitter plates ) and insulating spacers stacked in a helical configuration, rather than coils of wire.
Ancient people learned about magnetism from lodestones (or magnetite) which are naturally magnetized pieces of iron ore.The word magnet was adopted in Middle English from Latin magnetum "lodestone", ultimately from Greek μαγνῆτις [λίθος] (magnētis [lithos]) [1] meaning "[stone] from Magnesia", [2] a place in Anatolia where lodestones were found (today Manisa in modern-day Turkey).
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