ʻO ka pauka Hafnium
Hōʻike huahana
ʻO ka pauka Hafnium he metala keʻokeʻo keʻokeʻo, ma ke ʻano o nā waiwai kino, ʻo ka pauka hafnium he wahi hoʻoheheʻe kiʻekiʻe a me kahi paila kiʻekiʻe, ʻo kona helu hoʻoheheʻe ʻana he 2545 ° C, ʻo ka paila he 3876 ° C. He kiʻekiʻe hoʻi kona conductivity thermal. a me ka resistivity kiʻekiʻe, no laila ua hoʻohana pinepine ʻia i ka hana ʻana i nā superalloys a me nā mea uila.Ma ke ʻano o nā waiwai kemika, ʻoi aku ka maʻalahi o ka pauka hafnium me nā mea non-metallic e like me ka oxygen a me ka nitrogen e hana ai i nā oxides a me nā nitrides.Hoʻokumu pū ia i nā mea hoʻohui me nā metala he nui, e like me nā mea hoʻohui hafnium.Ma ke ʻano o ka hoʻohana ʻana a me ke koʻikoʻi, ʻo ka pauka hafnium he mea koʻikoʻi loa ia, hoʻohana nui ʻia i ka aerospace, pūʻali koa, uila a me nā māla ʻē aʻe.No ka laʻana, hoʻohui ʻia me ka tungsten, rhenium a me nā metala ʻē aʻe i loko o ka ikaika kiʻekiʻe, kiʻekiʻe kiʻekiʻe ke kūpaʻa hafnium alloys no ka hana ʻana i nā mīkini mokulele a me nā mīkini rocket.Eia kekahi, hiki ke hoʻohana ʻia ka pauka hafnium e hana i nā mea uila, e like me nā capacitors, resistors, etc.
Hōʻike
| Zr+Hf | O | Zr | ʻO Si | C | Hf |
| 99.5min. | 0.077 | 1.5 | 0.08 | 0.009 | Kaulike |
Palapala noi
Hoʻohana nui ʻia ka pauka Hafnium Hf no:
1. Hoʻohana maʻamau i ka X-ray cathode a me ka hana uea tungsten;
2. Loaʻa i ka hafnium maʻemaʻe nā mea maikaʻi o ka plasticity, ka hana maʻalahi a me ka pale ʻana i ka corrosion kiʻekiʻe, a he mea koʻikoʻi i ka ʻoihana atomic ikehu;
3. Loaʻa i ka Hafnium kahi ʻāpana hopu neutron wela nui, e lilo ia i mea hoʻopau neutron maikaʻi loa, hiki ke hoʻohana ʻia ma ke ʻano he koʻokoʻo mana a me ka mea pale i nā reactors atomic;
4. Hiki ke hoʻohana ʻia ka pauka Hafnium e like me ka propellant no nā rockets
5. Hiki ke hoʻohana ʻia ʻo Hafnium ma ke ʻano he getter no nā ʻōnaehana inflatable he nui.Hiki i ka Hafnium getter ke wehe i ka oxygen, nitrogen a me nā kinoea pono ʻole ʻē aʻe i loko o ka ʻōnaehana;
6. Hoʻohana pinepine ʻia ʻo Hafnium ma ke ʻano he mea hoʻohui i ka ʻaila hydraulic e pale ai i ka volatilization o ka ʻaila hydraulic i ka wā o nā hana kiʻekiʻe.No ka mea he ikaika anti-volatility ʻo Hafnium, hoʻohana maʻamau ia i ka ʻaila hydraulic ʻoihana a me ka ʻaila hydraulic olakino;
7. Hoʻohana pū ʻia ka mea Hafnium i ka ʻōnaehana Intel45nm hou loa;
8. Hiki ke hoʻohana ʻia nā ʻāpana Hafnium ma ke ʻano he uhi pale mua no nā nozzles rocket a me nā kaʻa hoʻokomo hou ʻana i ka holo, a hiki ke hoʻohana ʻia nā alloys Hf-Ta no ka hana ʻana i nā mea kila a me nā mea pale.Hoʻohana ʻia ʻo Hafnium ma ke ʻano he mea hoʻohui i nā mea hoʻohui wela, e like me nā alloys o tungsten, molybdenum, a me tantalum.Hiki ke hoʻohana ʻia ka HfC ma ke ʻano he mea hoʻohui carbide cemented ma muli o kona paʻakikī kiʻekiʻe a me ka helu heheʻe.
Nā Huahana Pili
Hāʻawi pū mākou i ka uea hafnium a me ke koʻokoʻo hafnium, hoʻokipa e kūkākūkā!
