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

ʻAno ʻano:
1. ʻO ka coercivity maikaʻi loa.
2. Paʻa wela maikaʻi.
3. He pipiʻi ke kumu kūʻai a hiki ke hoʻololi i ke kumu kūʻai (kobalt market price sensitivity).

Nā pōʻino nui:
1. He maʻalahi ka ʻili o ka Samarium–cobalt magnet. I ka lawelawe ʻana iā lākou, pono e hoʻohana ʻia nā maka aniani.
2. ʻO ka hui ʻana o nā mākēneki e ʻāhaʻi ʻia, a hiki i nā pōʻino.
3. Hana ʻia ka hana ʻana o Samarium cobalt ma ke kaʻina hana i kapa ʻia ʻo sintering, e pili ana i ka sintering i nā mea a pau, a ʻoi aku ka nui o nā māwae o loko. ʻAʻole i loaʻa i nā Magnets ka pono mechanical a aia wale nō ka hana o ka hoʻomākaukau ʻana i nā māla magnetic. No laila, pono e hoʻolālā i nā ʻōnaehana mechanical kūikawā e hāʻawi i ka ʻōnaehana holoʻokoʻa i ka hilinaʻi mechanical.