Hafniumtuaj yeem tsim cov alloys nrog lwm cov hlau, cov neeg sawv cev tshaj plaws uas yog HAFNIUM TANTOTUM, xws li Hafnium (TA4HFC5), uas muaj lub siab yaj. Lub ntsiab lus melting ntawm Pentacarbide Tetratantal thiab Hafnium tuaj yeem ncav cuag 4215 ℃, ua rau nws cov tshuaj laus uas muaj ntau tshaj plaws.
Hafnium, nrog cov khoom siv tshuaj lom neeg HF, yog xim hlau uas yog rau cov qeb hloov tsheb hlau. Nws cov ntsiab lus tseem ceeb yog cov nyiaj txho thiab muaj xim hlau lustal. Nws muaj mohs hardness ntawm 5.5, lub ntsiab lus melting ntawm 2233 ℃, thiab yog yas. Hafnium tuaj yeem tsim cov oxide txheej hauv huab cua, thiab nws cov khoom yog qhov ruaj khov nyob rau hauv chav tsev kub. Hmoov zoo tuaj yeem ua rau huab cua, thiab tuaj yeem hnov mob nrog cov pa thiab nitrogen ntawm cov kub. Hafnium tsis hnov mob nrog dej, dilute acids xws li hydrochloric acid, sulfuric acid, thiab muaj zog alkaline daws. Nws yog soluble hauv cov muaj zog acids xws li aqua thiab hydrofluoric acid, thiab muaj cov tshuaj tiv thaiv corrosion.
Lub caijhafniumTau pom xyoo 1923. Hafnium muaj cov ntsiab lus tsawg hauv lub ntiaj teb crust, tsuas yog 0.00045%. Nws yog feem ntau cuam tshuam nrog hlau zirconium thiab tsis muaj cais ores. Hafnium tuaj yeem pom nyob rau hauv feem ntau zirconium mines, xws li beyllium zircon, zircon, thiab lwm yam minerals. Thawj ob hom ores muaj cov ntsiab lus siab ntawm hafnium tab sis cov peev txheej qis, thiab zaccon yog qhov tseem ceeb ntawm Hafnium. Ntawm lub ntiaj teb nplai, tag nrho cov peev txheej ntawm Hafnium cov peev txheej yog ntau dua 1 lab tons. Lub teb chaws muaj cov chaw loj dua yog suav nrog South Africa, Australia, Tebchaws Asmeskas, Brazil, Is Nrias teb, thiab lwm thaj chaw. Hafnium mines kuj tseem faib rau hauv Guangxi thiab lwm thaj tsam ntawm Suav.
Xyoo 1925, ob tug kws tshawb fawb los ntawm Sweden thiab Netherlands nrhiav tau cov fluorinium ntsev fluorinated txoj kev siv fluorinated thiab cov hlau sodium txo txoj kev. Hafnium muaj ob lub tshuab ua lead ua thiab cov khoom ua pov thawj Hexagonal Dense Packing ntawm 1300 ℃ (α (℃, nws pib ua lub cev ceg tawv nqaij (β- sib npaug). Hafnium tseem muaj rau cov isotopium ruaj khov, yog qhov Hafnium 176, Hafnium tshooj, thiab Hafnium 178.
Cov teb loj ntawm hafnium suav nroghafnium dioxide (HFO2), Hafnium Tetrachloride (HFCL4), thiab hafnium hydroxide (H4hfo4). Hafnium Dioxide thiab Hafnium Tetrachloride tuaj yeem siv los tsim cov hlauhafnium, Hafnium dioxideKuj tseem siv tau los npaj hafnium alloys, thiab hafnium hydroxide tuaj yeem siv los npaj ntau yam hafnium tebchaw. Hafnium tuaj yeem tsim cov alloys nrog lwm cov hlau, cov neeg sawv cev feem ntau yog HAFNium tantal tetratantum thiab Hafnium (TA4HFC5), uas muaj lub ntsiab lus siab. Lub ntsiab lus melting ntawm Pentacarbide Tetratantal thiab Hafnium tuaj yeem ncav cuag 4215 ℃, ua rau nws cov tshuaj laus uas muaj ntau tshaj plaws.
Raws li "2022-2026 sib sib zog nqus cov lus qhia kev lag luam ntawm cov xaim hluav taws xob Hafnium, xoo hluav taws xob kev lag luam Cathodes, thiab cov txheej txheem saib xyuas kos duab ; Hafnium tungsten alloy thiab hafnium molybdenum alloy tuaj yeem siv los tsim cov raj roj hluav taws xob, thaum HAFNium tantalum alloy tuaj yeem siv los tsim cov ntaub ntawv thiab cov hlau tsim; Carbide carbide (HFC) tuaj yeem siv rau cov foob pob hluav taws thiab cov dav hlau tiv thaiv pem hauv ntej, thaum Hafnium Boride (HFB2) tuaj yeem siv ua lub siab-allloys alloy; Ib qho ntxiv, cov hlau hafnium muaj ib qho loj nruab nrab kev nqus kev hla ntu thiab tseem siv tau ua cov khoom tswj thiab cov khoom tiv thaiv rau cov tshuaj tua hluav taws xob atomic reactors.
Kev Lag Luam Kev Lag Luam los ntawm XinsiJie tau hais tias vim nws qhov zoo ntawm Oxidation Resports, High of down ofs has has has temperatureoys muaj ntau cov lus teb, thiab lwm daim teb, xws li cov ntaub ntawv hluav taws xob, High-kub resistant cov ntaub ntawv, cov ntaub ntawv alloy nyuaj, thiab cov ntaub ntawv atomic zog. Nrog rau kev loj hlob sai ntawm kev lag luam xws li cov ntaub ntawv tshiab, cov ntaub ntawv hluav taws xob, thiab cov khoom lag luam tshiab tau nthuav tawm, thiab cov khoom tshiab yog cov khoom tshiab tas li. Lub neej tom ntej kev txhim kho kev cia siab yog qhov cog lus.
Lub Sijhawm Post: Sep-27-2023