Tetrataenite - L1[sub]0[/sub]-type FeNi

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Astronuc
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Tetrataenite is one of the mineral phases found in meteoric iron.

Various groups are attempting to synthesize on a commercial scale to replace REE-based magnets.

https://en.wikipedia.org/wiki/Tetrataenite
Mixing iron and nickel together in specific quantities, with a phosphorus catalyst, and smelting the mixture, forms tetrataenite in bulk quantities, in seconds.

https://www.lpi.usra.edu/planetary_...nite-may-solve-the-rare-earth-element-crisis/

https://www.cam.ac.uk/research/news...-reduce-reliance-on-rare-earths-in-low-carbon
 
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