 Neodymium magnet Nd2Fe14B
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| A powerful magnet, they have replaced marginally weaker and significantly more heat-resistant samarium-cobalt magnets in most
applications, due mainly to their lower cost. These magnets are very strong in comparison to their mass, but are also mechanically
fragile and the most powerful grades lose their magnetism at temperatures above 80 degrees Celsius.
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| Used for stabilization and angular head motors in computer hard drives, neodymium magnets are also popular with hobbyists,
and a small magnet can have amazing properties - it exhibits magnetic braking when moved near a non-magnetic metal due to
induced eddy currents.
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| Neodymium magnets are used for the transducers in the earphones included with Apple's popular iPod music player, as well as
in numerous other high-fidelity headphones or buds.
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