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

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Tetrataenite, a mineral phase in meteoric iron, is being synthesized commercially to provide an alternative to rare earth element (REE)-based magnets. The synthesis process involves mixing iron and nickel in specific ratios with a phosphorus catalyst, allowing for rapid bulk production. This method could significantly alleviate the rare earth element crisis by offering a sustainable magnet solution. Recent advancements in synthesis techniques are being explored by various research groups. The potential of tetrataenite in manufacturing could lead to reduced reliance on rare earth materials in low-carbon technologies.
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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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