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. “To the best of our knowledge, this could be the ...
Rare-earth-free magnet made from cheap materials
from ElectronicsWeekly http://www.electronicsweekly.com/news/research-news/rare-earth-free-magnet-made-from-cheap-materials-2016-05/
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