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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 .
Neodymium magnets have been tested for medical uses such as magnetic braces and bone repair, but biocompatibility issues have prevented widespread applications. [84] Commercially available magnets made from neodymium are exceptionally strong and can attract each other from large distances.
A permanent magnet is an object made from a material that is magnetized and creates its own persistent ... Neodymium–iron–boron (NIB) magnets are among the ...
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.
Magnetic alloys have become common, especially in the form of steel (iron and carbon), alnico (iron, nickel, cobalt, and aluminum), and permalloy (iron and nickel). So-called "neodymium magnets" are alloys of neodymium, iron and boron forming the crystal structure Nd 2 Fe 14 B.
Alnico alloys can be magnetised to produce strong magnetic fields and have a high coercivity (resistance to demagnetization), thus making strong permanent magnets. Of the more commonly available magnets, only rare-earth magnets such as neodymium and samarium-cobalt are stronger.
Greenland also has the potential to provide a significant amount of rare earth minerals like Neodymium, which is used to make the magnets used in electric motors, the 2023 report said.
Neodymium-iron-boron N52 magnet of 1 cubic centimeter in volume 10 3: 5.937 × 10 3 m 2 ⋅A [7] A bowling ball made of neodymium-iron-boron (strongest grade) 10 6: 5 × 10 6 m 2 ⋅A [10] Any magnet able to produce 1 tesla one metre away from its centre 10 19: 4 × 10 19 m 2 ⋅A [11] Magnetic field of Mercury: 10 20: 1.32 × 10 20 m 2 ⋅A ...
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