Search results
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.
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...
Jan 16, 2023 · Chemistry. How rare earth elements’ hidden properties make modern technology possible. These 17 metals fine-tune light and generate powerful magnetic fields. In August, China finished...
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.
Feb 1, 2020 · Rare earth permanent magnets are currently produced in quantities of about 1.4 × 10 5 t per year, with 80% of the world’s supply of rare earth metals originating in China. The development of alternative sources of supply requires risky long-term investment in mines; nevertheless, some of the new prospects currently being investigated or ...
Jan 5, 2024 · According to DOE projections, US demand for these rare earth magnets is set to more than quadruple by 2050. This is partly because of improved industrial technologies, says Noveon’s chief ...
What are Rare Earth Magnets? Rare-earth magnets are permanent magnets having a composition of alloys manufactured from rare earth elements (mostly elements from lanthanide series, and alloys). They were developed in the 1970s and 1980s and are the strongest types of permanent magnets.
