He magnet honua laha ʻole ka magnet Samarium-cobalt, i hana ʻia me ka samarium, cobalt a me nā mea metala honua laha ʻē aʻe ma o ka hoʻohālikelike ʻana. Ua hoʻomohala pono ʻia i ka makahiki 1970. ʻO ka magnet Samarium-cobalt ka lua o ka magnet ikaika loa i kēia mau lā, me ka huahana ikehu magnetic kiʻekiʻe loa (BHmax), coercivity kiʻekiʻe, friability a me ka haki ʻana. ʻO ka huahana ikehu magnetic kiʻekiʻe loa o ka magnet Samarium-cobalt mai 9 MGOe a i 31 MGOe. Loaʻa i ka magnet Samarium-cobalt ʻelua mau lakio haku mele, ʻo ia hoʻi (ʻātoma samarium: ʻātoma cobalt) 1:5 a me 2:17. No ka laʻana, ʻo ka huahana ikehu magnetic kiʻekiʻe loa o ka alloy 2:17 he 26 MGOe, ʻo ka coercivity he 9750 oersted, ʻo ka mahana Curie he 825 ° C, a ʻo ka mahana hana kiʻekiʻe loa he 350 ° C.

Nā ʻano hiʻohiʻona:
1. Maikaʻi loa ka hoʻoikaika ʻana.
2. Paʻa maikaʻi o ka mahana.
3. He pipiʻi ke kumukūʻai a hiki ke loli i nā loli o ke kumukūʻai (kobalt market price sensitivity).

Nā pōʻino nui:
1. He maʻalahi ka ʻili ʻana i ka magnet Samarium-cobalt. I ka wā e lawelawe ai iā lākou, pono e ʻaʻahu i nā maka aniani.
2. ʻO ke kuʻi ʻana o nā magnet i kekahi i kekahi e hiki ai ke wāwahi i nā magnet, a hiki ke alakaʻi i nā pōʻino.
3. Hana ʻia ka hana ʻana o ka samarium cobalt ma o ke kaʻina hana i kapa ʻia ʻo sintering, ʻo ia hoʻi ka sintering ʻana i nā mea āpau, a he nui ka hiki ke loaʻa nā māwae kūloko. ʻAʻohe pono o nā magnet a he hana wale nō ia o ka hoʻomākaukau ʻana i nā kahua magnetic. No laila, pono e hoʻolālā i nā ʻōnaehana mechanical kūikawā e hāʻawi i ka ʻōnaehana holoʻokoʻa i ka hilinaʻi mechanical lawa.