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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.
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Jan 16, 2023 · The most powerful rare earth alloy magnets are neodymium-iron-boron magnets. A three-kilogram neodymium alloy magnet can lift objects that weigh over 300 kilograms, for instance.
Jan 5, 2024 · January 5, 2024. US-based Noveon Magnetics extracts materials from discarded commercial magnets like this one to make new magnets for wind turbines and electric vehicles. Courtesy of Noveon...
Feb 1, 2020 · Rare earth permanent magnets constitute a mature technology, but the shock of the 2011 rare earth crisis led to the re-evaluation of many ideas from the 1980s and 1990s about possible new hard magnets containing little or no rare earth (or heavy rare earth).
Jul 6, 2022 · Neodymium and samarium—two of the 17 rare earth elements—are ferromagnetic, meaning that they have inherent magnetic properties and can be magnetized. These metals are first mined, refined, and then combined with materials like iron, boron, and/or cobalt to make the strongest magnetic alloys.
To develop an economically viable permanent magnet, Croat knew he needed to produce it from a light rare-earth element, such as lanthanum, cerium, praseodymium or neodymium, which together...
Apr 9, 2024 · What are rare earth magnets? A magnet is a material or object that produces a magnetic field. This magnetic field is invisible but is responsible for the most notable property of a magnet: a force that pulls on other ferromagnetic materials and attracts or repels other magnets. A permanent rare earth magnet is one made from a material that ...
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Rare-Earth Magnets Information. Show all Rare-Earth Magnets Manufacturers. Classified under permanent magnets, rare-earth magnets have a permanent magnetic field. When metallic objects are in close distance, the magnet attracts them.
Apr 16, 2024 · Rare earth magnets refer to powerful permanent magnets composed of rare earth element alloys. Among permanent magnets, rare earth magnets can generate the largest magnetic field, which is much larger than that of AlNiCo magnets or ferrite magnets.
