May 19, 2016
Rare-earth-free magnet made from cheap materials
Posted by Karen Hurst in categories: entertainment, materials
A new cheaper way in creating magnets.
US researchers have created a powerful permanent magnet out of iron and nitrogen, two plentiful cheap materials, as part of a programme to cut the need for ‘rare earth’ metals.
It is only a tiny sample, a film 500nm thick, but it is the real thing.
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