Hafnium ufa, Hf

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Hafnium ufa, Hf

amagwiritsidwa ntchito ngati X-ray cathode ndi tungsten waya manufacturng Makampani Opanda hafnium wokhala ndi pulasitiki, kosavuta kukonza, kutentha kwa dzimbiri, Ndi chinthu chofunikira kwambiri pamakampani opanga mphamvu za atomiki Hafnium matenthedwe otsekemera pamtanda, ndiye oyamwa a neutron, omwe angagwiritsidwe ntchito monga ndodo yolamulira ndi zida zotetezera


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Njira yamagulu.  Hf
Nambala ya CAS  7440-58-6
Makhalidwe  ufa wakuda wakuda wakuda
Kusungunuka  Zamgululi
Malo otentha  4602 C.
Kuchulukitsitsa  . 13. 31g / cm3
Ntchito  omwe amagwiritsidwa ntchito ngati X-ray cathode ndi waya wa tungsten manufacturng ndodo ndi chipangizo choteteza

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Hafnium ya siliva imvi yachitsulo, chitsulo chachitsulo; Pali mitundu iwiri ya hafniummetal: hafnium ndi hexagonal wandiweyani wazolongedza mitundu (1750 ℃) wokhala ndi kutentha kwakukulu kuposa zirconium. Chitsulo cha Hafnium chili ndi mitundu yonse ya allotropic kutentha kwambiri.
Chitsulo cha Hafnium chimakhala ndi gawo lokwanira kwambiri la kuyamwa kwa neutron ndipo chitha kugwiritsidwa ntchito ngati acontrol zinthu zamagetsi.
Kapangidwe kama kristalo kangagawidwe m'magulu awiri: kulongedza kathinjidwe ka hexagonal (-) pomwe kutentha kwake kuli pansipa 1300 ℃; Pamwamba pa 1300 ℃, pali kiyubiki yapakati pa thupi (- chilinganizo).
Chitsulo cha pulasitiki chomwe chimakhala cholimba komanso chophwanyika pamaso pa zosafunika. Khola mumlengalenga, limakhala lamdima pokhapokha mukawotcha. Chingwe chimatha kuyatsidwa ndi lawi lamasewera. Zirconium monga mwachilengedwe. Osati madzi, kuchepetsa asidi kapena mphamvu ya alkali, koma yosavuta kupasuka mu aqua aqua ndi hydrofluoric acid. Ili ndi + 4 valence m'chigawochi. Aloyi ya Hafnium (Ta4HfC5) imadziwika kuti ili ndi malo osungunuka kwambiri (pafupifupi 4215.).

CAS ayi. 7440-58-6
Kusungunuka 2 227 ℃
Malo otentha 4602 ℃
Kuchuluka kwa 13.31g / cm3 (20 ℃)
Zolemba mu Crust (PPM) 5.3
Zinthu padzuwa: (magawo miliyoni) 0.001
Zinthu zomwe zili m'madzi am'nyanja: (PPM) 0.000007
Kuuma kwa Mohs 5.5
Mlingo womwe mawu amayenda (m / S) 3010
Mtundu wa proton 1.20456E-25
Pulogalamu ya Proton misa 72.504

Katundu wa mankhwala
Hafnium ndi ofanana kwambiri ndi zirconium mu mankhwala. Ali ndi kukana kwa dzimbiri ndipo sikophweka kuukiridwa ndi yankho wamba la asidi m'madzi. Imasungunuka mosavuta mu hydrofluoric acid ndipo imapanga ma fluorinated complex. Kutentha kwambiri, hafnium amathanso kuphatikizana mwachindunji ndi mpweya monga oxygen ndi nayitrogeni kuti apange oxides ndi nitrides.
NTCHITO:
Hafnium ndi yothandiza chifukwa imatulutsa ma elekitironi mosavuta (mwachitsanzo, ngati ulusi wa nyali yoyaka). Alloys a hafnium ndi tungsten kapena molybdenum amagwiritsidwa ntchito ngati ma elekitirodi pamagetsi amadzimadzi. Amagwiritsidwa ntchito mu
X-ray cathode ndi mafakitale opanga tungsten. Hafnium yoyera imakhala ndi pulasitiki, yosavuta kuyika, kutentha kwambiri komanso kukana dzimbiri, ndichinthu chofunikira pamakampani opanga mphamvu za atomiki. Hafnium matenthedwe otsekemera pamtanda ndi gawo labwino kwambiri la neutron, lomwe limatha kugwiritsidwa ntchito ngati ndodo yolamulira ndi chida chodzitetezera mu riyakitala ya atomiki.
Hafnium ufa ACTS monga cholimbikitsira miyala. Ma Cathode a ma X-ray machubu amatha kupangidwa munyumba yamagetsi. Ma alloys a Hafnium atha kugwiritsidwa ntchito ngati alonda akutsogolo kwa ma rocket nozzles komanso magalimoto olowanso mu glider, ndipo ma alloys a HF-TA atha kugwiritsidwa ntchito popanga zida zachitsulo ndi zida zosagwiritsidwira ntchito.
Hafnium imagwiritsidwa ntchito ngati chowonjezera pazitsulo zosagwiritsa ntchito kutentha, monga tungsten, molybdenum, ndi tantalum. HfC itha kugwiritsidwa ntchito ngati chowonjezera cha carbide chifukwa chakuuma kwake kwakukulu ndi malo osungunuka. Malo osungunuka a 4TaCHfC ali pafupifupi 4215 ℃, omwe ndi mankhwala odziwika kwambiri. Hafnium imagwiritsidwa ntchito ngati chotengera m'machitidwe ambiri aeration. Hafnium getter amachotsa mpweya, nayitrogeni, ndi zina zambiri m'dongosolo popanda mpweya. Hafnium nthawi zambiri, imagwiritsidwa ntchito ngati chowonjezera mumafuta a hydraulic kuti apewe kugwiritsidwa ntchito kwamafuta a hydraulic pantchito zowopsa, ndi anti-volatilization yamphamvu, khalidweli, lomwe limagwiritsidwa ntchito kwambiri pamafuta opangira ma hydraulic. Mafuta opangira mafuta. Hafnium imagwiritsidwanso ntchito pamapulogalamu aposachedwa kwambiri a Intel45 nanometer.


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