1. Zaj piav
Metallurgical Silicon(tseem hu uaMuaj siliconlossisCrystalline Silicon) yog daim ntawv tshaj lij ntawm silicon tsim los ntawm cov neeg ua haujlwm ntawm silica (sitio₂) hauv lub tshuab hluav taws xob hauv hluav taws xob. Nws feem ntau muaj98% -99. 5% siliconNrog impurities xws li hlau (fe), txhuas (al), thiab calcium (ca).
2. Cov yam ntxwv tseem ceeb
Yeeb Nkab Yeeb Yam: Si
Kev tshwm sim: Bluish-grey, brittle crystalline khoom
Cov Qib Purity:
Cov chav sib tw metallurgical ntawm silicon (mg-si):97% -99}}% si (siv nyob rau hauv alloys, tshuaj).
Tshuaj Qib Tshuaj Qib Silicon: >99% SI (rau kev tsim cov silicone).
Hauv qib silicon (piv txwv li Si-si):99.9999% + (rau cov qauv tsim khoom).
Ceev: 2.33 g / cm³
Melting taw tes: 1414 degree (2577 degree f)
Kub taw tes: 3265 degree (5909 degree f)
3. Txuj Ci Ntau Lawm
Cov txheej txheem tseem ceeb: Carbothermic txonyob rau hauv submerged arc rauv.
Cov Khoom Siv Raw: Quartz (sidio₂) + carbon (roj av (roj av coke / thee / thee).
Lus teb pauj ib yam:
Sio 2+2 C1800-2000 Degree Si {3}} cev ↑
Lub zog-khaus: Xav tau12, {{000-14, 000 kwh ib tuj ntawmsilicon.
4. Cov ntawv thov MAIN
Metallurgy:
Txhuas Alloys(Nce lub zog thiab kub ua kom tsis taus).
Silicon Hlau(rau transformer cores).
Tshuaj Kev Lag Luam:
Silicones(Loosts, roj nplua, cov txiaj ntsig).
Polysilicon(rau hnub ci hlwb thiab semiconductors).
Khoom siv hluav taws xob:
Ultra-siab huv sility silicon rausemiconductors, chips thiab photovoltaic hlwb.
5. Kev Lag Luam thiab Kev Lag Luam
Cov Neeg Tsim Nyog Ua Si: Tuam Tshoj (~ 70% ntawm lub ntiaj teb kev tsim khoom), Norway, Brazil, Asmeskas.
Tus nqi yam: Tus nqi hluav taws xob, txoj cai ib puag ncig, txoj cai thov rau hnub ci zog.
6. Cia thiab Kev Ruaj Ntseg
Rhiab rau ya raws: Yuav tsum muab cia rau hauv cov xwm txheej qhuav los tiv thaiv oxidation.
Nrog: Hniav Silicon Hmoov yuav tawg thaum raug tsoo los ntawm ib lub txim.