![]() ![]() In the beginning, neodymium magnets were very costly to produce (and to buy). The material was developed in the 1980s by combining neodymium, iron, and boron (abbreviated NIB). Neodymium is the most affordable and strongest output rare earth magnet. Samarium Cobalt magnets(SmCo) Neodymium Magnets (NdFeB).There are two types of rare earth magnets, varying in grades (strengths) and having different magnetic and physical properties: Magnets of this type typically have a remanence exceeding 1.2 Tesla and are the strongest among permanent magnets. A rare-earth magnet has a much higher performance than ceramic magnets and alnico magnets. In magnetic technology, rare-earth magnets are permanent magnets composed of alloys of rare-earth elements. Their excellent size to strength ratio makes them ideal for use where space or weight constraints exist. The performance and affordability of rare earth magnets make them critical components in many technological and industrial applications. ![]() Dr Masato Sagawa developed the first Neodymium magnets (NdFeB) in Japan, giving a very powerful performance and paving the way for a new era of magnetic technology. Rare-earth magnets quickly gained the attention of manufacturing companies, and soon they found their way into consumer and business products. ![]() Their origins date back to the late 1960s when US Air Force Materials Laboratory scientists discovered an alloy of Yttrium and Cobalt had very strong magnetic properties. “Bar magnet” (CC BY-SA 3.Magnets made of rare-earth elements are relatively recent inventions. “Rare earth magnet toy” By Cskey – Own work (CC BY-SA 3.0) via Commons WikimediaĢ. Reference:ġ.“Rare-Earth Magnet.” Wikipedia, Wikimedia Foundation, 8 June 2019, Available here. So, the key difference between rare earth magnet and regular magnet is that rare earth magnets have a rare-earth element as the key component, whereas regular magnet has iron as the major element. Rare earth magnets are permanent magnets made of the alloys of rare-earth elements while regular magnets are the magnets we use for regular purposes. Summary – Rare Earth Magnet vs Regular Magnet A further difference between rare earth magnet and regular magnet is that the curie temperature of rare earth magnets is very low, but in regular magnets, it is very high. Moreover, rare earth magnets have comparatively very high remanence, coercivity and energy product than regular magnets. What is the Difference Between Rare Earth Magnet and Regular Magnet?Ī rare earth magnet is a permanent magnet made of the alloys of rare-earth elements while a regular magnet is a magnet we use for regular purposes. ![]() There are two types in the form of SmCo 5 and Sm 2Co 17
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