Ho lokisoa ha motsoako oa scandium ka mokhoa oa counter doping

Mokhoa oa doping ke mokhoa o tloaelehileng oa ho qhibilihali-alloys tse bohareng tsa scandium. E kenyelletsa ho phuthela karolo e itseng ea bohloeki bo phahamengscandium ea tšepeka aluminium, ebe o e kopanya le aluminium e qhibilihisitsoeng tlas'a tšireletso ea argon, e tšoara nako e lekaneng, e e hlohlelletsa ka ho feletseng, ebe e e lahlela ka har'a tšepe kapa hlobo e batang ea koporo ho fumana.li-alloys tse bohareng tsa scandium. Ho qhibiliha ho ka etsoa ho sebelisoa li-crucible tsa graphite kapa alumina tse hloekileng, 'me mekhoa ea ho futhumatsa e ka etsoa ho sebelisoa libono tsa ho hanyetsa kapa libono tsa ho kenya maqhubu a mahareng. Mokhoa ona o ka qhibilihisa li-alloys tse mahareng tse nang le 2% ho isa ho 4%scandium.

Molao-motheo oa mokhoa oa doping o bonolo, empa lintlha tse qhibilihang tsascandiummme aluminium e fapana haholo (Sc ke 1541 ℃, A1 ke 660 ℃). Ho qhibiliha ha aluminium ho hloka ho futhumatsoa ho ea mocheso o phahameng, ho etsa hore ho be thata ho lokisa lihlahisoa tsa alloy tse mahareng tse nang le sebopeho se tsitsitseng le kabo e tšoanang, hape ho thata ho qoba ho chesoa ha scandium. E le ho finyella sena, mokhoa oa ho ntlafatsa ke ho kopanya le ho hatella mochine o phahameng oa tšepe oa scandium o nang le dispersant, phofo ea aluminium, flux, joalo-joalo esale pele nakong ea ho lokisetsa, ebe o li kenya ka tšepe e qhibilihisitsoeng. The dispersant decomposes ka mocheso phahameng, ka tsela e iketsang silakanya agglomerates, e leng se ka hlahisa motsoako junifomo le ho fokotsa tukang tahlehelo ea phahameng melting ntlha tšepe. Empa ka kakaretso, litšenyehelo tsa ho lokisetsali-alloys tse bohareng tsa scandiumho sebedisa bohloeki bo hodimoscandium tšepekaha thepa e tala e batla e phahame, e leng ntho e thata ho basebelisi ba indasteri ho e amohela.


Nako ea poso: Nov-24-2023