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Didn't we just learn how to make magnets in a novel way without rare earth? Yes, yes we did: https://hackaday.com/2022/09/01/iron-nitrides-powerful-magne...

I don’t think that’s a commercial product yet, still on the tech development phase. It may not pan out.

I asked for some samples a while ago so we could test them out in our magnet lab here at NASA GRC but I haven’t heard anything back yet.

NASA GRC Magnet lab, sounds attractive...