Iyini i-Rare Metal?
Eminyakeni embalwa edlule, sivame ukuzwa "ngenkinga yensimbi engavamile" noma "inkinga yensimbi engavamile". Igama elithi, “insimbi engavamile”, aliyona echazwe ngokwemfundo, futhi akukho ukuvumelana ngokuthi lithinta yiphi ingxenye. Muva nje, leli gama livame ukusetshenziselwa ukubhekisela kuzakhi zensimbi ezingu-47 eziboniswe kuMfanekiso 1, ngokusho kwencazelo ebekwe ngokujwayelekile. Ngezinye izikhathi, izakhi zomhlaba eziyi-17 ezingavamile zibalwa njengohlobo olulodwa, futhi ingqikithi ibalwa njengezingu-31. Kunengqikithi yezinto ezingu-89 ezikhona emvelweni, ngakho-ke, kungashiwo ukuthi ngaphezu kwengxenye yezakhi ziyizinsimbi ezingavamile. .
Izakhi njenge-titanium, manganese, chromium, ezitholakala ngobuningi kuqweqwe lomhlaba, nazo zibhekwa njengezinsimbi ezingavamile. Lokhu kungenxa yokuthi i-manganese ne-chromium bekuyizinto ezibalulekile emhlabeni wezimboni kusukela ezinsukwini zayo zakuqala, zisetshenziswa njengezithasiselo zokuthuthukisa izakhiwo zensimbi. I-Titanium ibhekwa “njengeyivelakancane” ngoba iyinsimbi enzima ukuyikhiqiza njengoba kudingeka ubuchwepheshe obuphezulu ukuze kucwengwe insimbi eningi ngendlela ye-titanium oxide. Ngakolunye uhlangothi, kusukela ezimweni zomlando, igolide nesiliva, okuye kwaba khona kusukela ezikhathini zasendulo, akubizwa ngokuthi izinsimbi ezingavamile. Kusukela ezimweni zomlando, igolide nesiliva, okwakukhona kusukela ezikhathini zasendulo, akubizwa ngokuthi izinsimbi ezingavamile. .
