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by rediguanayum
173 days ago
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* US military depends on samarium instead of neodymium magnets due to it's high heat tolerance.
* For example samarium rare-earth magnets motors are used to control the fins of Tomahawk cruise missiles.
* Due to tariff war, China cut off some rare-earth exports including samarium
* Contractors got creative with sourcing about 100 tons of samarium from France and processing in Europe and United States
* Future sources of samarium need to be discovered
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