Curiyaha dhulka naadir |Samarium(Sm)
Sannadkii 1879-kii, Boysbaudley waxay heshay curiye cusub oo naadir ah oo ku jira "praseodymium neodymium" oo laga helay niobium yttrium ore, wuxuuna u magacaabay samarium sida waafaqsan magaca macdantan.
Samarium waa midab huruud ah oo khafiif ah waana alaabta ceeriin ee samaynta Samarium cobalt magnet joogto ah. Samarium cobalt magnets waxay ahaayeen birlabadaha dhulka ee ugu naadirka ah ee loo isticmaalo warshadaha. Noocaan magnet joogto ah wuxuu leeyahay laba nooc: taxanaha SmCo5 iyo taxanaha Sm2Co17. Horraantii 1970-meeyadii waxaa la alifay taxanaha SmCo5, xilliyadii dambena waxaa la ikhtiraacay taxanaha Sm2Co17. Hadda waa dalabka dambe ee diiradda ugu weyn. Nadiifinta oxide samarium ee loo isticmaalo magnets cobalt samarium uma baahna inay aad u sarreyso. Marka loo eego dhinaca kharashka, ku dhawaad 95% badeecada ayaa inta badan la isticmaalaa. Intaa waxaa dheer, oxide samarium sidoo kale waxaa loo isticmaalaa capacitors dhoobada iyo kicinta. Intaa waxaa dheer, samarium waxay sidoo kale leedahay sifooyin nukliyeer ah, oo loo isticmaali karo qalab dhismeed, alaabta gaashaanka iyo qalabka xakamaynta tamarta atomiga, taasoo ka dhigaysa fission nukliyeerka ah inuu dhaliyo tamar weyn oo si ammaan ah loo isticmaalo.
Waqtiga boostada: Abriil-26-2023