Originally found in a #meteorite, and now finally obtained in the laboratory. #Tetrataenite is a #material that can help become independent of rare earths materials, on which #China has almost a monopoly.
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New approach to ‘cosmic #magnet’ manufacturing could reduce reliance on rare earths in low-carbon #technologies | #UniversityofCambridge #TDBNews
https://www.cam.ac.uk/research/news/new-approach-to-cosmic-magnet-manufacturing-could-reduce-reliance-on-rare-earths-in-low-carbon

I'm not seeing enough about #tetrataenite.

I want my space magnets, damn it!

RT @Marisol_Maddox
"Engineers @Northeastern... have patented a process to accelerate the creation of one such rare earth magnet alternative—a mineral known as #tetrataenite, whose magnetic properties make it a leading candidate to replace magnets made of the scarce material" https://news.northeastern.edu/2022/10/17/rare-earths-crisis/?orgid=

Hyped for #tetrataenite. Curious about how low the bar is for making it though. Like, could I? Do I just take Iron, Nickel, and Phosphorus in the right ratios, and melt them in a crucible?

@riskable My focus is on the #EV space. But temperature matters there too, because #neodymium magnets start to lose field strength in the range of temperatures motors actually experience (~80°C). So you have to use higher amounts of #dysprosium, which means even higher cost & somewhat lower nominal field strengths. So #tetrataenite could be a really good fit, IF the achievable field strengths can approach the theoretical.

Need to watch this space, as I have investments in some rare earth plays.

Hey, any #researchers (#physics, #materials science, etc) doing #research on magnetic materials [#magnetism]? I'd like your take on the prospect of #tetrataenite as an alternative to #neodymium #magnets. My understanding is that the theoretical magnetic energy product is about 80% that of available neodymium magnets, but that raises the question of how much realizable magnetic energy products might approach theoretical.

NPR: They made a material that doesn't exist on Earth. That's only the start of the story.
https://www.npr.org/sections/money/2022/11/08/1134461777/they-made-a-material-that-doesnt-exist-on-earth-thats-only-the-start-of-the-stor
#NPR #alloy #science #Tetrataenite

#Tetrataenite