レアアースがないと絶対に無理なのか？

[0106 Nanashi_et_al. 2022/11/06(日) 08:53:11.25]

Direct Formation of Hard-Magnetic Tetrataenite in Bulk Alloy Castings
onlinelibrary.wiley.com/doi/full/10.1002/advs.202204315
www.cam.ac.uk/horizons40