ʻEleʻele honua laha ʻole | Samarium (Sm)

ʻEleʻele honua laha ʻole |Samarium(Sm)

I ka makahiki 1879, ua ʻike ʻo Boysbaudley i kahi mea hou o ka honua i loko o ka "praseodymium neodymium" i loaʻa mai ka niobium yttrium ore, a ua kapa ʻia ʻo ia ʻo samarium e like me ka inoa o kēia ʻai.

ʻO Samarium kahi kala melemele māmā a ʻo ia ka mea maka no ka hana ʻana i nā magnet mau loa e pili ana i ka Samarium cobalt. ʻO Samarium cobalt magnets ka mea mua loa i hoʻohana ʻia i ka ʻoihana. ʻElua mau ʻano o kēia ʻano magnet paʻa: SmCo5 series a me Sm2Co17 series. I nā makahiki 1970 mua, ua hoʻokumu ʻia ka moʻo SmCo5, a i ka wā ma hope, ua hana ʻia ka moʻo Sm2Co17. I kēia manawa ʻo ka koi o ka hope ka mea nui. ʻAʻole pono ke kiʻekiʻe loa ka maʻemaʻe o ka samarium oxide i hoʻohana ʻia i nā magnet samarium cobalt. Mai kahi hiʻohiʻona kumukūʻai, ma kahi o 95% o ka huahana i hoʻohana nui ʻia. Eia kekahi, hoʻohana ʻia ka samarium oxide i nā capacitors seramika a me nā catalysts. Eia kekahi, loaʻa i ka samarium nā waiwai nuklea, hiki ke hoʻohana ʻia e like me nā mea hana, nā mea pale a me nā mea hoʻomalu o nā reactors atomic, e hana ana i ka nuklea fission e hoʻonui i ka ikehu e hoʻohana pono ʻia.