1. Zaj piav
Metallurgical silicon(tseem hu uaMuaj siliconlossisCrystalline Silicon) {{- Yog ib qho kev ua kom muaj txiaj ntsig ntawm cov silicon uas tau ua los ntawm Carlicothermic Txo ntawm Silica (sitio₂) hauv lub tshuab 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
Raws li theem:
Mettallurgical qib ntawm silicon (mg - si): 97% -99% SI (siv nyob rau hauv alloys, tshuaj).
Tshuaj Qib Tshuaj Qib Silicon): >99% SI (RAU SILICON NTAU LAWM).
Hauv qib silicon (piv txwv li - si): 99.999% + (rau cov qauv tsim khoom).
Ceev: 2.33 g / cm³
Melting taw tes: 1414℃(2577℃f)
Kub taw tes: 3265℃(5909℃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:
Sio2 +2 C1800-2000 Degree Si+2 co ↑
Lub zog-khaus: Xav tau12 000-14 000 kwh ib tujsilicon
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 High Purity Silicon Rausemiconductors, microcircuitits thiab photocellsCov.
5. Kev Lag Luam thiab Kev Lag Luam
Cov Chaw Tsim Tshuaj: 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 tau muab cia rau hauv cov xwm txheej qhuav los tiv thaiv oxidation.
Nrog: Zoo silicon hmoov yuav tawg yog tias ntaus los ntawm ib qho txim taws.