Samarium-cobalt maganadisu ne mai Rare-ƙasa maganadisu, wanda aka yi da samarium, cobalt da sauran karfe rare kasa kayan ta hanyar daidaitawa. An yi nasarar haɓaka shi a cikin 1970. Samarium-cobalt magnet shine na biyu mafi ƙarfi a zamanin yau, tare da matsakaicin matsakaicin ƙarfin maganadisu (BHmax), babban ƙarfin ƙarfi, friability da fatattaka. Matsakaicin samfurin ƙarfin maganadisu na Samarium-cobalt maganadisu ya fito daga 9 MGOe zuwa 31 MGOe. Samarium-cobalt maganadisu yana da nau'i biyu na abun ciki, wato (samarium atom: cobalt atom) 1:5 da 2:17. Misali, matsakaicin samfurin ƙarfin maganadisu na 2:17 gami shine 26 MGOe, ƙarfin ƙarfi shine 9750 oersted, Curie zafin jiki shine 825 ° C, kuma matsakaicin zafin aiki shine 350 ° C.

Halayen halayen:
1. Kyakkyawan tilastawa.
2. Kyakkyawan kwanciyar hankali.
3.Farashin yana da tsada kuma yana da saukin kamuwa da sauye-sauyen farashi (fasalin farashin kasuwar cobalt).

Babban haɗari:
1. Samarium-cobalt maganadisu yana da sauƙin kwasfa. Lokacin sarrafa su, dole ne a sanya tabarau.
2. Haɗuwa da maganadiso tare na iya haifar da tsinkewar maganadisu, wanda zai iya haifar da haɗari.
3. Samarium cobalt masana'anta ana yin su ne ta hanyar tsarin da ake kira sintering, wanda ya haɗa da haɗa duk kayan, kuma ana iya samun fashewar ciki. Magnets ba su da ingancin injina kuma kawai suna da aikin shirya filayen maganadisu. Don haka, ya zama dole a tsara tsarin injina na musamman don baiwa tsarin gabaɗaya isasshen abin dogaro na inji.