Iron and nitrogen. And the production methods look to be quite simple and scalable. I agree, this could be revolutionary. https://hackaday.com/2022/09/01/iro

Iron and nitrogen. And the production methods look to be quite simple and scalable. I agree, this could be revolutionary. https://hackaday.com/2022/09/01/iron-nitrides-powerful-magnets-without-the-rare-earth-elements/ https://hackaday.com/2022/09/01/iron-nitrides-powerful-magne... https://patents.google.com/patent/US20160141082A1/en https://patents.google.com/patent/US20160141082A1/en