Refractory metals ke mofuta oa thepa ea tšepe e nang le matla a ho hanyetsa mocheso le ntlha e phahameng haholo ea ho qhibiliha.
Lintho tsena tse refractory, hammoho le mefuta e fapaneng ea metsoako le li-alloys tse entsoeng ka tsona, li na le litšobotsi tse ngata tse tloaelehileng. Ntle le sebaka se phahameng sa ho qhibiliha, li boetse li na le khanyetso e phahameng ea kutu, letsoalo le phahameng, 'me li boloka matla a matla a mochini mochesong o phahameng. Litšobotsi tsena li bolela hore litšepe tse refractory li ka sebelisoa masimong a mangata, joalo ka li-electrode tse qhibilihang ka khalase, likarolo tsa sebōpi, liphofu tsa sputtering, li-radiator le li-crucibles. Litsebi tse tsoang Lefapheng la Theknoloji la RSM li ile tsa hlahisa litšepe tse peli tse sebelisoang ka ho fetisisa tse sebelisoang hangata, e leng, molybdenum le niobium.
molybdenum
Ke tšepe ea refractory e sebelisoang haholo ka ho fetisisa 'me e na le thepa e babatsehang ea mochine tlas'a mocheso o phahameng, katoloso e tlaase ea mocheso le conductivity e phahameng ea mocheso.
Thepa ena e bolela hore molybdenum e ka sebelisoa ho etsa likarolo tse tšoarellang bakeng sa lits'ebetso tsa mocheso o phahameng, joalo ka likarolo tse jereng, li-brake pads tsa lifti, likarolo tsa sebōpi, le lisebelisoa tsa forging. Molybdenum e sebelisoa ho li-radiator ka lebaka la mocheso oa eona o phahameng oa mocheso (138 W/(m · K)).
Ho phaella ho thepa ea eona ea mechine le ea mocheso, molybdenum (2 × 107S / m), e etsang hore molybdenum e sebelisetsoe ho etsa electrode e qhibilihisang khalase.
Hangata molybdenum e kopantsoe le litšepe tse fapaneng bakeng sa lisebelisoa tse hlokang matla a mocheso, hobane molybdenum e ntse e e-na le matla a phahameng esita le mocheso o phahameng. TZM ke motsoako o tummeng oa molybdenum base, o nang le 0.08% zirconium le 0.5% titanium. Matla a motsoako ona ho 1100 ° C ke hoo e ka bang habeli ho feta oa molybdenum e sa tsitsang, e nang le katoloso e tlaase ea mocheso le mocheso o phahameng oa mocheso.
niobium
Niobium, tšepe e refractory, e na le ductility e phahameng. Niobium e na le ts'ebetso e phahameng esita le ka mocheso o tlase, 'me e na le mefuta e mengata, e kang foil, plate le sheet.
Joaloka tšepe e hanyetsang, niobium e na le boima bo tlaase, e leng se bolelang hore li-alloys tsa niobium li ka sebelisoa ho etsa lisebelisoa tse sebetsang hantle tse hanyetsanang ka boima bo batlang bo le bobebe. Ka hona, li-alloys tsa niobium tse kang C-103 hangata li sebelisoa lienjineng tsa rokete tsa sefofane.
C-103 e na le matla a babatsehang a mocheso o phahameng 'me e khona ho mamella mocheso ho fihlela ho 1482 ° C. E boetse e na le sebopeho se phahameng, moo ts'ebetso ea TIG (Tungsten Inert Gas) e ka sebelisoang ho e cheselletsa ntle le ho ama haholo machinability kapa ductility.
Ho feta moo, ha e bapisoa le litšepe tse fapaneng tsa refractory, e na le karolo e ka tlase ea mocheso oa neutron, e bonts'ang bokhoni ba ts'ebeliso ea nyutlelie molokong o latelang.
Nako ea poso: Sep-29-2022