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What are permanent magnets made of?

Modern permanent magnets are made of special alloys that have been found through research to create increasingly better magnets. The most common families of magnet materials today are ones made out of aluminum-nickel-cobalt (Alnico), strontium-iron (Ferrites, also known as Ferrites), neodymium-iron-boron (neo magnets, sometimes referred to as “super magnets”), and samarium-cobalt. (The samarium-cobalt and neodymium-iron-boron families are collectively known as the Rare Earths).

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