Jul 21 2011
Experience The Power Of The Rare Earth Magnet
Though their name would lead you to believe otherwise, rare earth magnets are not rare at all. These “permanent” magnets are manufactured using metal alloys (made from rare earth elements) that are as common as iron and tin. The term “rare earth” was derived from scarce earth minerals, which are dispersed within the earth’s crust making their collection uneconomical. Unlike transition metals, the 17 rare earth elements are ferromagnetic and can be magnetized. It is the compound of these metals that creates the two types of rare earth magnets, which are superior in performance (up to 3 times stronger) than their conventional ceramic (ferrite) or alnico counterparts.