Hafnium Powder, Hf

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Hafnium Powder, Hf

hoʻohana mau ʻia ma ke ʻano he X-ray cathode a me ka uea tungsten hanaurnurng ʻOihana hafnium maʻemaʻe me ka plasticity, hana maʻalahi, ke kūpikipiki kūpikipiki kiʻekiʻe, kahi mea nui o ka ʻoihana ikehu atomni Hafnium thermal neutron hopu i ka ʻāpana keʻa, ʻo ia ka mea lawe pono neutron maikaʻi, hiki ke hoʻohana ʻia e like me ke koʻokoʻo anakuhi reactor


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>> Hoʻomaka Prtoduct

Kaulana Molecular.  Hf
Helu CAS  7440-58-6
Nā ʻano  pauka hao ʻeleʻele hinahina
Kuhi hoʻoheheʻe  2227C
Kuhi paila  4602 C
Ka mānoanoa  . 13. 31g / cm3
Hoʻohana  hoʻohana pinepine ʻia ma ke ʻano he X-ray cathode a me ka tungsten wire pabrikima koʻokoʻo a me ka pono pale

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Hafnium no ke kala metala hinahina, aniani uila; Aia he ʻokoʻa ʻelua o ka hafniummetal: ʻo ka hafnium kahi hexagonal dense packant variant (1750 ℃) me kahi transtemperature kiʻekiʻe ma mua o zirconium. Loaʻa i nā Hafnium metala i nā ʻano allotropic i ke kiʻekiʻe wela.
Loaʻa i kahi metala Hafnium metala kea neutron kiʻekiʻe a hiki ke hoʻohana ʻia e like me nā mea acontrol no nā reactors.
Hiki ke hoʻokaʻawale ʻia ke aniani i nā ʻano ʻelua: hexagonal dense packing (-) aia ka mahana ma lalo o 1300 ℃; Ma luna o 1300 ℃, ʻo ia ka cubic kikowaena o ke kino (- formula).
ʻO kahi metala ea e paʻakikī a palapū i ke alo o nā haumia. Kūleʻa ka makani, pouli wale i ka ʻili ke puhi ʻia. Hiki ke hoʻā ʻia kahi filament e ka ahi o kahi pāʻani. ʻO Zirconium e like me ke kūlohelohe. ʻAʻole ka wai, dilute acid a i ʻole ka hana alkali ikaika, akā maʻalahi e hoʻoheheʻe i ka aqua aqua a me ka waikawa hydrofluoric. He + 4 valence kona i ka compcound. Hoʻomaopopo ʻia ke kinona Hafnium (Ta4HfC5) i ke kiko hoʻoheheʻe kiʻekiʻe (ma kahi o 4215 ℃). ʻO ke kūkulu ʻana o Crystal: He hexagonal ka pūnaewele

ʻAʻole CAS. 7440-58-6
Kuhi hoʻoheheʻe 2 227
Ke kiko paila 4602 ℃
Ka mānoanoa o 13.31g / cm3 (20 ℃)
ʻImi i loko o ka pā (PPM) 5.3
Nā mea i ka lā: (nā ʻāpana no ka miliona) 0.001
Nā mea i loko o ka wai kai: (PPM) 0.000007
Mohs paʻakikī 5.5
ʻO ka helu e hele ai ke kani (m / S) 3010
Ka maikaʻi o ka proton 1.20456E-25
Proton pili lehulehu 72.504

Nā waiwai kemika
ʻAno like ʻo Hafnium me ka zirconium i nā waiwai kemika. He kūpaʻa kūpale maikaʻi ia a ʻaʻole maʻalahi e hoʻouka ʻia e ka hopena aika wai kūmole maʻamau. Māmā maʻalahi ia i ka hydrofluoric acid a hana i kahi paʻakikī fluorinated. I ke kiʻekiʻe wela, hiki i ka hafnium ke hoʻohui pololei me nā kinoea e like me oxygen a me nitrogen e hana i nā oxides a me nā nitrides.
Hoʻohana:
Pono pono ʻo Hafnium no ka mea he maʻalahi ia i nā electrons (e laʻa me he filament no ke kukui anincandescent). Hoʻohana ʻia nā mea hoʻohui o ka hafnium a me ka tungsten a i ʻole molybdenum ma ke ʻano he electrodes no nā paipu hoʻokuʻu uila kiʻekiʻe. Hoʻohana maʻamau i
X-ray cathode a me nā ʻoihana hana ʻoihana tungsten. Loaʻa ka plasticity i ka hafnium maʻemaʻe, maʻalahi e hana, ke kūpaʻa kiʻekiʻe o ke ana wela a me ke kūpaʻa ʻaihue, kahi mea nui i ka ʻoihana ikehu atom. ʻO Hafnium thermal neutron hopu i ka ʻāpana keʻa ke komo pono neutron maikaʻi, hiki ke hoʻohana ʻia me ke koʻokoʻo a me nā mea pale i nā reactor atomic.
ʻO Hafnium pauma ACTS ma ke ʻano he booster no nā rockets. Hiki ke hana ʻia nā Cathode o nā paipu X-ray i ka ʻoihana uila. Hiki ke hoʻohana ʻia nā mea hoʻopili Hafnium i mau kiaʻi mua no nā nozele roket a me nā kaʻa komo hou o ka glider, a hiki ke hoʻohana ʻia nā mea hoʻopili HF-TA e hana i nā mea kila a me nā mea pale.
Hoʻohana ʻia ʻo Hafnium ma ke ʻano he mea hoʻohui i loko o nā mea pale wela, e like me tungsten, molybdenum, a me tantalum. Hiki ke hoʻohana ʻia ʻo HfC ma ke ʻano he hoʻohui hoʻohui karbide ma muli o kona paʻakikī kiʻekiʻe a me kahi kiko hoʻoheheʻe. ʻO ke kiko hoʻoheheʻe o 4TaCHfC ma kahi o 4215 ℃, ʻo ia ka hui kemika kiʻekiʻe i ʻike ʻia. Hoʻohana ʻia ʻo Hafnium ma ke ʻano he getter i nā ʻōnaehana aeration he nui. Lawe ʻo Hafnium getter i ka oxygen, nitrogen, a me nā mea ʻē aʻe mai ka ʻōnaehana me ka ʻole nā ​​kinoea. Hoʻohana pinepine ʻia ʻo Hafnium ma ke ʻano he mea hoʻohui i ka aila hydraulic e pale ai i ka volatilization o ka aila hydraulic i nā hana ʻoi loa ka pilikia, me kahi anti-volatilization ikaika, kēia ʻano, i hoʻohana pinepine ʻia i ka aila hydraulic ʻoihana. ʻAilika neka lāʻau lapaʻau. Hoʻohana ʻia ʻo Hafnium i nā mea hoʻohana intel45 nanometer hou loa.


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