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Hafnium

Kev cai Hlau Hafnium (Hf) Cov Khoom Siv


khoom homHafnium
cimHf
Atomic Luj178.49
Cov lej Atomic72
Xim / tsosGrey Steel, Hlau
Thermal Tus Cwj PwmPEB 23 W/mK
Melting Point (°C)2227
Coefficient ntawm Thermal Expansion5.9 x 10-6 / K
Theoretical ntom ntom (g / cc)13.31
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Txheej txheem cej luam

Hafnium (Hf) General Information:

Hafnium, cim Hf, atomic naj npawb 72, atomic hnyav 178.49. Cov khoom yog ci ntsa iab nyiaj-grey hloov pauv hlau.Lub melting point yog 2227 ℃, lub boiling point yog 4602 ℃, nws yog insoluble nyob rau hauv dej, thiab qhov ceev yog 13.31 g / cm3. Hafnium yog cov hlau yas thiab ua tawv thiab tawv thaum muaj impurities. Nws ruaj khov nyob rau hauv huab cua thiab tsuas yog darkens ntawm qhov chaw thaum hlawv. Lub filament tuaj yeem ignited nrog cov nplaim ntawm qhov sib tw. Cov khoom zoo ib yam li zirconium. Nws tsis hnov ​​​​mob nrog dej, dilute acid lossis muaj zog alkali, tab sis yooj yim soluble hauv aqua regia thiab hydrofluoric acid.

Hf-4N-COA

lub npelojpuritycustomize
Hafnium Hlau0.01-4 hli99.9% -99.99%
Hafnium Rod5-200 hli99.9% -99.99%
Hafnium Bar5-200 hli99.9% -99.99%
Hafnium TubeOD20-160mm.Thick 2-20mm99.9% -99.99%
Hafnium TubeOD20-160mm.Thick 2-20mm99.9% -99.99%
Hafnium phaj≥2mm99.9% -99.99%
Hafnium daim ntawv≥2mm99.9% -99.99%
Hafnium Ntawv Nyiaj0.01-2mm99.9% -99.99%
Hafnium Daim0.01-2mm99.9% -99.99%
Hafnium Ingot1kg, Los yog Customize99.9% -99.99%
Hafnium pob1kg, Los yog Customize99.9% -99.99%
Hafnium pellets1-50 hli99.9% -99.99%
Hafnium Lub Hom Phiajcustomize99.9% -99.99%
Hafnium kubcustomize99.9% -99.99%
Hafnium Crystalcustomize99.9% -99.99%
Customized Hafniumcustomize99.9% -99.99%

Hafnium yog qhov muaj txiaj ntsig zoo vim tias nws yooj yim emits electrons (piv txwv li, raws li filament hauv incandescent teeb). Siv raws li cathodes hauv X-ray raj, alloys ntawm hafnium thiab tungsten los yog molybdenum yog siv los ua electrodes nyob rau hauv high-voltage paug hlab. Feem ntau siv nyob rau hauv X-ray cathodes thiab tungsten hlau manufacturing industries. Ntshiab hafnium muaj plasticity, yooj yim ua, kub tsis kam thiab corrosion kuj, thiab yog ib yam khoom tseem ceeb hauv kev lag luam atomic zog. Hafnium muaj qhov loj thermal neutron capture cross-section, ua rau nws zoo tagnrho neutron absorber thiab tuaj yeem siv los ua cov pas nrig thiab cov khoom tiv thaiv hauv atomic reactors. Hafnium hmoov tuaj yeem siv los ua lub foob pob hluav taws. Hauv kev lag luam hluav taws xob, cathodes ntawm X-ray raj tuaj yeem tsim tau. Hafnium alloys tuaj yeem siv los ua cov khaubncaws sab nraud povtseg rau lub foob pob hluav taws thiab gliding rov nkag tsheb. Hf-Ta alloys tuaj yeem siv los ua cov cuab yeej hlau thiab cov ntaub ntawv tiv thaiv. Hafnium yog siv los ua cov khoom siv ntxiv hauv cov khoom siv hluav taws xob kub-resistant.

Hafnium (Hf) Hlau Element Txheej txheem cej luam:

Peb smelts ib yam ntawm cov hlau thiab feem ntau lwm cov ntaub ntawv siab heev rau hauv pas nrig, bar los yog phaj daim ntawv, los yog cov neeg muas zaub muab cov khoom kos duab.

Peb muag cov khoom sib txawv ntawm cov khoom siv hlau los ntawm cov khoom hnyav los yog cov khoom siv sib txawv hauv cheeb tsam tshawb fawb thiab rau cov cuab yeej tshiab.

Piv txwv li: Hafnium Hlau, Hafnium Qws, Hafnium Bar, Hafnium Tube, Magnesium Yeeb Nkab, Hafnium Phaj, Hafnium Sheet, Hafnium Foil, Hafnium Piece, Hafnium Ingot, Hafnium Lump, Hafnium O Pellets, Hafnium Target, Hafnium Lwm yam khoom. muaj nyob ntawm kev thov.


Hafnium BarHafnium Bar
Hafnium CrystalHafnium Crystal
Hafnium kubHafnium kub
Hafnium Ntawv NyiajHafnium Ntawv Nyiaj
Hafnium IngotHafnium Ingot
Hafnium pobHafnium pob
Hafnium pelletsHafnium pellets
Hafnium DaimHafnium Daim
Hafnium TubeHafnium Tube
Hafnium phajHafnium phaj
Hafnium RodHafnium Rod
Hafnium daim ntawvHafnium daim ntawv
Hafnium Lub Hom PhiajHafnium Lub Hom Phiaj
Hafnium TubeHafnium Tube
Hafnium HlauHafnium Hlau
 
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